20 Beautiful Wood Fired Hot Tubs from All around the Planet

Posted by Earth Stove on December 20, 2014 with No Comments as , , , , , ,
Wood fired baths are an historic tradition, relationship again at minimum to Roman instances when baths known as hypocausts had been built by working sizzling flue gases below a stone tub. &nbspThose Roman tubs have been also off the grid, as are these. &nbspSome are quirky, some passionate, some sensible and some just downright hedonistic. &nbspWhich is your favored?
See our other picture essays: Wooden Stoves from Close to the Globe, and and Firewood Assortment and Stacking from about the entire world.&nbsp

Heated Up!

Outdated-timey wooden stoves want to get new-timey if we really want to make use of them

Posted by Earth Stove on December 9, 2014 with No Comments as , , , , , ,

Monday, December 8, 2014
Nashua Telegraph
by David Brooks

Tom Butcher from Brookhaven Lab,
second from right, tests an automated
stove from New Zealand. Ben Myren,
left, did R&D work on it.

I don’t think very hard when I light up the old wood-burning stove in my basement. Turns out, that might be a problem.

“Combustion technology is incredibly complex. Numerous chemical engineers, combustion engineers, mechanical engineers around the world are constantly trying to understand the intricacies associated with combustion. It is absolutely not what you and I would think – just light a match … especially when you want to get clean combustion and use wood efficiently,” said Rob Rizzo, manager of the Renewable Thermal Program for the Massachusetts Department of Energy Resources.

Rizzo was among the organizers of the 2014 Stove Design Workshop held in November at Brookhaven National Laboratory in New York, the latest in a number of attempts to add some high-tech wizardry to that staple of New England life, the wood stove. (For details, see forgreenheat.blogspot.com/2014/11/rookie-wood-stove-makers-get-highest.html)

Why tinker with something as well-established as wood stoves?

Because, like me, most people don’t think too hard when using them, which makes them inefficient and polluting.

We use green wood or wet wood, and we fiddle with the damper in the wrong way, causing partial combustion and thus more pollution.

The Stove Design Workshop, like a national Stove Design Challenge in 2013 that featured two New Hampshire entries, wants to find technology that can better cope with our stupidity.

The five finalists in the design workshop used a variety of techniques to work around people, including oxygen sensors that control fuel-to-air ratio, a common emission-control technique in cars, and a New Zealand stove that has a “barometrically operated variable choke venturi tube” to control the amount of combustion air entering a stove, particularly at lower burn rates.

“The whole concept with the design challenge is to come up with solid-wood stove that eliminates the human interface. Basically hit a start button and walk away; that is the concept we’re aiming at,” he said.

This already happens with pellet stoves, of course, which is why pellets has led a wood-burning renaissance for building heat.

The drawback is that they burn pellets made of compressed sawdust rather than the wood I can snag for free off my property, especially after the Thanksgiving snowstorm knocked down so many big limbs.

The lure of free fuel means that a lot of people still burn non-pelletized wood for some or all of their heat, although it’s not clear how many.

I have never been able to find good data about people who use cordwood (a.k.a. “roundwood”) as their principal heat source, partly because it’s hard to pin down. I, for example, use it only as a minor supplement of the pellet stove in the living room and our oil-fired furnace.

Rizzo said he didn’t know any data either, but he said that wood stoves remain important, especially in western Massachusetts.

Just as important as convenience is cleanliness. Wood stoves can produce a lot of pollution, particularly fine-particle soot, that is a health hazard. This is particularly a problem around Keene, which has a lot of wood-burning stoves and a geography that traps air in certain weather conditions.

New Hampshire has used rebates to get people to turn in their old stoves for cleaner versions, although with limited success.

But those cleaner stoves aren’t all that great; they’re little more than old stoves with catalytic converters in the stovepipe. Hence the push to build a better mousetrap, so to speak.

“It’s exciting to see new ideas coming forward. We have some educated guesses but we need to do better,” Rizzo said.

“We need to collect more data, about efficiency, emissions, consumption volumes, and also source of wood, sustainability of wood source, quality of wood source. Because rural America is always going to be burning round wood.”

More info:

Heated Up!

Ideal Procedures in Wooden and Pellet Stove Incentive Applications

Posted by Earth Stove on December 1, 2014 with No Comments as , , , , , ,
A report prepared for the University of Maryland Extension Woodland Stewardship Education program
By John Ackerly & Melissa Bollman

Alliance for Green Heat
October 31, 2014
As more and more states are beginning to provide incentives for modern wood and pellet stove installations, an array of criteria are being used to guide which stoves should be eligible and what other requirements should be included. This report looks at environmental, economic, energy efficiency, social equity, and consumer values and suggests ways to maximize program impact.
The federal wood and pellet stove incentive program that lasted from 2009 to 2013 is widely regarded as a particularly poor model. It allowed consumers to claim a $ 300 tax credit for the purchase of any new wood or pellet stove provided it was EPA certified (non-exempt) and at least 75% energy efficient. The energy efficiency requirement was quickly rendered meaningless as stove manufacturers were allowed to self-rate efficiency using any number of available methods. The EPA certification requirement, while it eliminated the highest polluting and most inefficient stoves, was similarly not sufficient for ensuring the best available technology was appropriately incentivized. Also, the federal program did not take important criteria such as professional installation and location into consideration. Thus, a new stove that emitted 5.5 grams of fine particulate matter (PM2.5) emissions per hour could be self-installed in a densely populated urban area and still be entitled to the tax credit.
A table summarizing all statewide incentive programs can be found at the end of this essay. Click here to download a pdf version of the report.

Summary of recommendations:
At a minimum, we believe programs should only incentivize wood and pellet stoves that are certified by the Environmental Protection Agency (EPA) and meet a stricter emission limit than the EPA’s minimum requirement. Energy efficiency is another important criterion that should be considered in stove incentive programs, although lack of reliable, independent data makes accounting for efficiency too difficult as of Fall 2014. To ensure new wood and pellet stoves work as cleanly and efficiently as they are designed, and to protect consumer safety and minimize the risk of fire, incentive programs should require subsidized stoves to be installed by certified hearth professionals. To ensure taxpayer funds for new stoves are spent in an efficient way and limit the negative environmental effects of wood smoke in urban areas, we recommend that new installs of wood stoves should be limited to rural areas, or that programs only make pellet stoves eligible for incentives. We also recommend that programs better target low- and middle-income residents.
There are several examples of state stove incentive programs that contain innovative and “best practice” features, but all programs have opportunities for improvement. We hope this report provides a resource for all programs.
1. Certification of equipment
Wood Stoves
Limiting the eligibility of wood stoves to EPA certified models is a basic feature of stove incentive programs.  The federal tax credit did not mention EPA certification, as it was supposed to be primarily an efficiency incentive.  Several unregulated boilers claimed to be eligible, but we are not aware of any uncertified stoves that claimed the credit.
The EPA provides a list of certified wood stoves available for download on its websitewith other useful information such as the stove manufacturer’s name, model name, emission rate, heat output in BTU per hour, and estimated or actual tested efficiency. Wood stoves certified by the EPA are independently tested to ensure they meet a particulate emissions threshold, which currently is 7.5 grams per hour for non-catalytic wood stoves and 4.1 grams per hour for catalytic wood stoves. Consumers can identify EPA certified wood stoves through a label affixed to the back or side of a stove as well as a hangtag, pictured below.
         EPA began certifying Phase II stoves in 1990, so some certified stoves are nearly 25 years old and need to be retired almost as much as some uncertified ones need to be. Stoves certified in the past 5 years are considered much cleaner and more effective than older, certified stoves.
Pellet stoves
            Pellet stoves are generally perceived to be cleaner and more efficient than wood stoves as a class, and few stove incentive programs have restricted pellet stove eligibility to those certified by the EPA. However, independent test data shows that this widely held belief about pellet stove efficiency may be incorrect. Some pellet stoves on the market are as low as 40% efficient, and many are in the 50% and 60% range, when they easily can be in the 70s given available technologies. We believe that households should not be subsidized into unwittingly buying a low-efficiency pellet stove that will saddle them with much higher fuel costs overtime. The list of EPA certified pellet stoves can be found on the same list as certified wood stoves. EPA certified pellet stoves are usually more efficient than their uncertified (exempt) counterparts because exempt pellet stoves often use the 35 to 1 air to fuel ratio loophole to avoid certification, at the cost of lower efficiency.
This issue will be obsolete at some point in 2015, when all new pellet stoves will be required to be certified under new EPA stove regulations.
Masonry heaters
Masonry heaters are such an expensive, niche product that they almost do not need discussion in these programs.  However, we encourage programs to make certain masonry heaters eligible, even though they are not certified. The EPA is currently considering a method to certify masonry heaters that may be released in the next year. In the meantime, Washingtonand Colorado maintain their own lists of certified masonry heaters approved for sale. These lists can be a useful reference for designing new stove incentive programs inclusive of masonry heaters. Coloradodoes not set a specific emissions limit, but maintains a list of over 30 approved masonry heaters by manufacturer. Washington sets an emissions limit of 7.3 grams per kilogram of masonry mass, which may be more useful to policymakers creating incentive programs. Washington may be setting the bar low, considering that the EPA has proposed a limit equivalent to 1.8 g/kg for future regulations.
2. Stricter emission limits
            While stove incentive programs in Montana, Idaho, and Arizonause EPA limits to set emissions criteria, several other stove incentive programs set stricter emission limits for eligible appliances than the EPA’s 7.5 and 4.1 grams per hour for non-catalytic and catalytic stoves. Setting stricter emission limits for wood stoves can help identify which stoves can perform best under optimal conditions. Some of the cleanest stoves by EPA emission standards may perform better in the real world. Equally important is using dry fuel and operating the stove correctly to obtain good real world performance. Pellet stoves, which operate in the field much more like they do in the testing lab as compared to wood stoves, should be held to 2 grams per hour, as in Maryland and New York’s program, or 2.5 grams per hour at the most, as in Oregon, Maine and the federal Housing and Urban Development (HUD)’s PowerSaver low interest loan programs.
The state of Washington has been a leader in establishing stricter state-wide limits. Currently they are 4.5 grams per hour for non-catalytic stoves and 2.5 grams per hour for catalytic stoves. Washington’s list of approved wood heating technologies, including masonry stoves, provides an easy standard policy makers can build into incentive regulations.
A state of Oregon incentive program requires stricter limits of 3.5 grams per hour for non-catalytic stoves and 2.5 grams per hour for pellet and catalytic stoves, which was adopted by Efficiency Maine’s stove incentive program. To take it a step farther, Maryland’s current limits are 3 grams per hour for wood stoves and 2 grams for pellet stoves. As the EPA continues to refine its certification criteria, we suggest that stove incentive programs adopt Maryland’s approachof limiting the eligibility of incentives to a certain grams per hour cutoff according to the data on the EPA’s certified stove list.
The argument against using stricter emission limits for wood stoves has some merit, but on the whole we and many other independent experts think it’s worthwhile.  It’s true that the test labs often know exactly how to test a stove, and can hit the stove’s sweet spots to get a low number of emissions that a consumer never will. Manufacturers that hire a test lab to do R&D on a stove before testing it may be likely to get even better numbers, because the lab is that much more familiar with the stove. The new EPA stove regulations are changing the test protocol, which may require stoves to burn cleaner on all test runs instead of averaging the test runs.  This could give emission numbers more relevance in the real world.
3. Efficiency
There is still no easy way to use efficiency in stove incentive programs, and as a result stoves are excluded from scores of state, local and utility incentive programs that are rooted in energy efficiency. Despite the benefits of having them included in incentive programs, industry has been reluctant to disclose efficiency numbers, much less agree to schemes where some stoves would get incentivized and other not.    
Pellet stoves are ideally suited to be part of many energy efficiency incentive programs, if they would release their tested efficiency values. Their continued exclusion may contribute to the perception that this technology does not fit into the mainstream energy efficiency movement, or worse, that it is not “green” enough to be included. Since one company, Hearth & Home Technologies, makes a very large percentage of the pellet stoves sold in the US, including many very efficient ones, they could significantly move the market by taking leadership and disclosing their actual, tested efficiency numbers.
Efficiency has become a thoroughly muddled, confusing, and controversial issue as they are several ways of measuring efficiency and results can be misleading. One of the greatest problems with this approach is the lack of third party tested efficiency data. The EPA list has verified efficiency data for only about two dozen units comprising mostly of the highest performing catalytic stoves. By only using stoves that have actual third party efficiency listing, a program would be basically limiting the selection to one non-catalytic Jøtul stove and a variety of large catalytic stoves. Only one pellet stove company, Seraph, has provided real efficiency data to the EPA thus far.  
Setting efficiency as an eligibility requirement would help encourage manufacturers to provide third party efficiency data to the EPA, which most have been reluctant to do in the past. The proposed new EPA stove regulations will require all stoves to be tested and listed for efficiency, but there is widespread concern that the EPA will not require, or even have the capacity to make, efficiencies available to the public within the first year or two after promulgation.

            The State of Oregon’s residential energy tax creditfor wood and pellet stoves is the only one that has put the effort into a workable and innovative system to incentivize the purchase of more efficient stoves without excluding inefficient stoves from eligibility. The more efficient the new stove is, the higher the tax credit the consumer receives. If the stove does not have an actual measured efficiency on the EPA list, the amount of the credit varies by stove type. Non-catalytic stoves are worth the least credit, catalytic stoves the second least, and pellet stoves the most. If the stove has an actual reported efficiency, then the consumer receives a tax credit based on how much more efficient the stove is than the minimum Oregon has established. The maximum rebate is $ 1,500.
 Both Massachusetts and Maine have attempted to use stove efficiency as an eligibility metric but the metrics were not clear or feasible and it had to be dropped.
A local utility program in Fort Collins, Coloradooffers homeowners zero-interest loans if they upgrade their wood burning appliance or fireplace to a more efficient class of heater, according to the default efficiencies provided by the EPA. For example, homeowners can upgrade an uncertified stove to a certified stove, or a wood stove to a new pellet stove, but not the other way around. This unique method of incentivizing the purchase of more efficient wood appliances has the potential to help consumers save money, but only if the EPA provided more accurate efficient data on pellet stoves. 
We find it is a good practice to include efficiency in the criteria, but we must acknowledge that the managers of these programs are struggling with some unintended barriers and consequences. Oregon is fixing one problem, which had led the tax credit calculation to favor non-catalytic stoves over the cleaner catalytic or pellet stoves. This put the agency in charge of the program, the Oregon Department of Energy, at odds with the Oregon Department of Environmental Quality. The Oregon tax credit amount is based on the efficiency improvement over the EPA’s default efficiency. So a non-cat tested at 70% would have a 7% improvement over the 63% default. A pellet stove tested at 75% would not have any improvement over the 78% EPA default efficiency. The program thus unintentionally puts pellet stoves at a disadvantage because the EPA has set unrealistically high default efficiency for pellet stoves.
4. Rebate amounts
Providing a higher rebate amount for pellet stoves than wood stoves is another common “best practice.” Maryland provides $ 700 for pellet stoves and $ 500 for wood stoves, steering households who may be on the fence towards a pellet appliance, which will be cleaner. With lower install costs for pellet stoves, the higher rebate may also be a reason more than 70% of consumers use the rebate for pellet stoves in Maryland. 
Right-sizing the rebate amount is also something that all programs must grapple with.  Funding that goes too quickly, or not quickly enough can sometimes cause problems. One money saving incentive that more jurisdictions are employing is bounty, or paying consumers $ 200-$ 400 to remove an old stove from circulation without replacing it with anything. For areas with excessive wood smoke pollution, this may be a far more effective per dollar of investment than a change out program.
5. Professional Installation
Requiring professional installation is standard for virtually all incentive programs. Wood and pellet stoves are potentially dangerous appliances and must be installed with the utmost concern for safety. Hundreds of homes burn down every year due to poor installations and lack of attention to clearances.
 Homeowners seeking to avoid the added cost of a stove installation are often tempted to self-install. In some cases, installation can be greater than the cost of a stove itself. State codes vary about permits and installation requirements for wood stoves, so state incentive programs that require professional installation can play a large role in helping to address this safety issue. Pellet stoves, which do not require a full chimney system, tend to entail less problematic, unsafe installs. However, with any appliance that presents a fire hazard, a professional installation by a hearth professional is a good practice.  
Options for incentive programs include requiring that stoves be installed by hearth professionals that have Chimney Safety Institute of America (CSIA) http://www.csia.orgor National Fireplace Institute (NFI) http://www.nficertified.orgcertifications. Another option is simply to require a certified contractor, or someone who has been approved to do specialty energy efficiency or weatherization work, install the stove. An added benefit of requiring hearth professional stove installation is that CSIA, NFI, and MHA would also be more likely to help advertise the incentive program if they are involved.
Most current state incentive programs, if they require professional installation at all, do not limit the eligible installers to hearth professionals. For example, Maine’s program initially required stoves to be installed by contractors with a solid fuel license, but did not provide for hearth professionals to do installations. In New York, a Energy Star professional is required.
Maryland’s program also initially required professional installation, but later waived the requirement after receiving a number of consumer complaints. Maryland began accepting self-installations provided that the owners provided documentation that the stove has been inspected post-install by either a county inspector or an insurance adjuster. While we believe requiring professional installation is the best practice, requiring inspection at a minimum can be a good compromise.
6. Low-income considerations
Some incentive programs offer higher rebate amounts to low-income families. This tends to be very common in change-out programs, and less common in non-trade out incentive programs. In New York, however, change-out of an old one stove is required to receive a rebate for a new one, unless the household is low-income, when the rebate is offered without a change out.
Change out programs tend to have limited budgets, but are usually very popular among consumers. Whether it’s a change out, or a straight incentive program, it is best if taxpayer funds are spent on consumer who need it most and not wasted on “free riders” who would make the purchase anyway without the incentive. When rebates disappear in a few hours or even a few weeks, it likely means the rebate was too generous and a lesser rebate could have resulted in a more installs.
To ensure stove change-out program funds benefit low-income consumers, the programs can be opened to them first and heavily advertised in low-income regions.
            Maryland considered a higher rebate for low-income families, but was dissuaded by added bureaucracy it involves and lack of data to demonstrate that it would be successful. 
            The use of income to qualify households for incentives or subsidies has had little support in renewable energy programs, even though it could be done relatively easily. Incentive programs for solar or geothermal rarely, if ever, disqualify families with high household incomes of $ 250,000 per year or more. Wealthy people like subsidies as much as low and middle-income people and it’s often very unpopular to steer taxpayer subsidies away from the richest families, who often have oversized homes.
As long as professional installation is required, incentivizing more affordable stoves from big box stores can make funding go much further and enable more low-income households to participate. Good quality EPA-certified stoves start at $ 700 and one of the most popular stoves in the country sells for $ 900. If stoves could be bought at a deep discount in bulk, program administrators may also get CSIA professionals to establish a discounted fixed price for a certain type of installation. Professional installation can be done by CSIA accredited chimney sweeps if local NFI trained staff at specialty hearth stores will only install their own products. Such a fixed price would be possible for pellet stoves and for wood stoves on single or two story homes where the pipe is mounted on the exterior of the house. If larger rebates are not provided to low-income families, this is a vital way to help them overcome high upfront costs.
7. Minimizing Free-Riders
A perennial problem with all rebate and incentive programs is that some people who take the rebate or the incentive would have made the purchase anyway, and so the funds serve little purpose.  Determining whether a program has a high or low number of “free-riders” is also difficult. 
            This is regarded as a cost of doing business for many rebate programs, such as those for purchase of Energy Star appliances. For stoves, the number of “free-riders” is far higher if consumers don’t learn about the incentive until they are making a purchase in a showroom.  However, if only the cleanest stoves are incentivized, and professional installation is required, programs can have the impact of resulting in cleaner, safer installs. They can also reward those manufacturers who invest more in R&D and produce cleaner stoves, spurring more innovation.
8. Household/area eligibility:
While pellet stoves can be acceptable in rural and more densely populated neighborhoods due to their more consistent low emissions, there are legitimate concerns about programs that encourage or subsidize the installation of wood stoves in densely inhabited or urban areas from a health and nuisance perspectives. Maryland’s program, for instance, is only available to homes that do not have access to natural gas, a backdoor way of limiting installs to more rural, sparsely inhabited areas where available heating fuels are expensive and residents can benefit the most from energy cost relief.  Initial data from the program shows there have been more wood and pellet stove grants awarded per capita in the more rural and less affluent counties than the more populated central region of the state, indicating there has been some success in this method.
A Woodstove Change-out Program in parts of Connecticut, Massachusetts and Rhode Island provided a $ 3,000 voucher to households who receive Medicaid, Low-income heating assistance, or the Women’s Infant and Children’s Nutrition Program.
Incentive programs can also work closely with low-income heating assistance (LIHEAP) programs, to ensure that families who receive LIHEAP are aware of the program and can access it.
Instead of using access to natural gas as an indicator of housing density, zip codes or counties could be designated as areas where an incentive may be appropriate. Another option would be to limit wood stove installs in more densely populated areas to only when an old, uncertified wood stove is being removed and recycled.
8. Energy Audit:
Energy audits are rarely used even in programs to incentivize modern, bulk fed pellet boilers, much less stove programs. But increasingly, incentives for stoves are available as part of a deeper energy retrofit that starts with an energy audit. Auditors can educate homeowners about the importance of upgrading to safer, more efficient equipment, spot dangerous installations, and assist in removing dangerous stoves. The Building Performance Institute (BPI) is taking the lead in developing guidelines for energy auditors to inspect wood stoves. Requiring energy audits in conjunction with professional installation would assist in states providing a more holistic energy service to consumers when incentivizing wood stoves. The Alliance for Green Heat and University of Maryland Extension produced a draft of steps to inspect a wood stove as a resource.
9. Dedicated outside air:
Several incentive programs in Oregon, Maine and in some HUD Power Saver programs require a dedicated outside air supply, but the requirement is far from accepted in hearth professional circles. In very tight homes, which are still relatively rare in the United States, outside air supply is important, but to require it for all homes not only adds a potentially unnecessary cost, it could even be a drawback.  If a home were found to be very tight, and has competing venting needs, such as a vented kitchen hood, a wood stove may compete for indoor air which could even reverse the flow of air down the chimney. In such a case, a dedicated outside air vent may be recommended for the stove. In Oregon, the requirement could mean simply a $ 35 vent that provides air within several feet of the stove. Many leading experts question the use of outside air.
10. Education:
Any program incentivizing new wood burning appliances should be coupled with educational materials on correct stove use and efficient burning practices. New appliances used incorrectly can negate the benefits of a new stove, contribute to more air pollution, and turn public opinion against wood burning and the program. It is well known that in terms of achieving ideal efficiency and cleanliness, choosing the right stove is only half the battle; the other half is the fuel and the operator. No matter how modern or clean a wood stove is, it is crucial that the operator use dry, split wood and give their stove enough air to maintain a clean burn. The EPA Burn Wise program, is a great resource for consumers that should be promoted by incentive programs. Consumers could even be asked when they receive an incentive to sign a pledge promising to only burn dry wood.  
11. Partners and Outreach
A “best practice” for virtually any incentive program is building a network of engaged partners who are committed to the particular goals of the program. For instance, if benefitting lower income populations is a goal, partnering with a local or state low-income heating assistance program can help get the word out to that population. Conversely, we found one incentive program in Alabama, where even the local hearth retail stores did not know it existed.
If the program is run by a state energy office, bringing in the expertise of the state air quality office is also important to ensure that agencies aren’t working at cross-purposes, as what happened in Oregon.
12. Reducing emissions
            Using a rebate or incentive to steer consumers toward the cleanest wood or pellet stove has some positive emission benefits on its own. Some states, such as Idaho, have for years required people to turn in an old, uncertified stove to get an incentive for a new one.  This resembles an ongoing, state-wide change-out, more than a stand alone incentive program, as it is not open to people who do not already have an old stove. Possibly the oldest continuously operating stove incentive program is in Arizona, where the state gives an incentive to put a EPA certified stove in a fireplace, to reduce the use of fireplaces for heating. And, in New York, the return of an old stove is waived for lower income families who want to buy a new pellet stove and do not have access to natural gas.
13.  Providing moisture meters and subsidizing wood sheds:
Moisture meters are effective yet inexpensive tools for ensuring homeowners only burn dry wood. One option is to provide a free ($ 10) moisture meter to every home that has a stove installed. One major woodstove manufacturer has begun to include a free moisture meter with each purchase of one of its wood stoves. States have the option of teaming up with the EPA’s Burn Wise program, which is promoting voluntary efforts like this to help wood stove owners burn cleaner and more efficiently.
Incentive programs could subsidize, prioritize or even require homes to have or build woodsheds. This would help ensure that subsidizing a new stove will result in reduced smoke from the home, or homes with woodsheds could receive a higher rebate, which incentivizes proper storage and educates people about its importance. An even more ambitious and more innovative concept would be to provide a firewood shed with every project. The EPA Burn Wise has a modular woodshed plan that cost $ 217 in materials and can be built off site or onsite.  Some experts question if a $ 150 rebate to help build a wood shed to keep wood dry may produce similar or more air quality benefits as a $ 1,000 rebate for a stove. The logistics of this is not necessarily easy, but it is something worth considering.
14. Monitoring and Evaluation
            Assessing the effectiveness of the program using agreed upon method is important. Many renewable energy incentive programs, including those that involve solar and geothermal, struggle with accurate and meaningful assessment often because the agency in charge of the programs wants to show it as a success.  Meaningful third party assessments can be expensive and may not be worthwhile unless the program is ongoing and there is an opportunity to change the program, something that outside interest groups may oppose. But tweaking program requirements is almost always necessary, and key stakeholders play a vital role in this. 
            For wood and pellet stoves, assessing the success of a program can be especially difficult because there is no easy way to meter heat output or fossil fuels avoidance. Particulate emission testing can be done in smaller, valley settings, but is difficult to monitor in state-wide settings.  Surveys of all participants via mail and email could be very useful and are an underutilized tool for gaining insights into program results. Surveys of hearth retailers can also be important.
“Best practices” in stove incentive programs are likely to be increasingly important as more options for smart deployment become possible. States with more expertise and more background in wood heat are more likely to have ability to incorporate more best practices into their programs. Trying to include too many best practices can make programs too complicated for both consumers and the implementing agency, so it’s important for program designers to tailor the requirements to the program goals. Using a state’s program requirements for a solar incentive program is often a good starting place when developing wood and pellet stove incentive programs.
At this point in the evolution of stove technology, we feel that pellet stoves are particularly ready to be part of more incentive programs. However, public disclosure of efficiencies by manufacturers will make this process much quicker.
 Almost all programs have had to make adjustments after establishing requirements that did not work as planned.  While this is a normal part of the learning curve of establishing a program for any appliance or technology, we hope this short report may lead agencies to ask the right questions and consider effective options.

A Comparison of Eligibility Requirements for Stoves Incentive Programs
October 31, 2014

* This efficiency level was not measured or enforced in any meaningful way.
** This program only allows upgrades from lower to higher efficiency using the EPA default numbers.
*** MD and ME allow for professional inspection in lieu of professional installation.
**** No efficiency minimum; higher efficiency stoves get higher rebate amounts.

Heated Up!

Rookie Wood Stove Makers Get Highest Score in Style Workshop

Posted by Earth Stove on November 27, 2014 with No Comments as , , , , , , ,

Taylor Myers and Ryan
Fisher with the Mulciber,
the greatest rating stove.
A stove developed and constructed by graduate engineering learners acquired the&nbsp
greatest score in an global Stove Layout Workshop focused on automated wooden stove technology.&nbsp The purpose of the occasion was to evaluate modern systems that can support stoves decrease true-entire world emissions that end result from very poor operation by the customer and use of unseasoned wooden, the two of which are widespread difficulties.&nbsp

10 judges scored the stoves dependent on emissions, effectiveness, innovation, marketplace attractiveness and basic safety.&nbsp The highest scoring stove, the Mulciber, tailored emission control techniques that are in cars, these kinds of as an oxygen sensor that controls the gasoline-to-air ratio, a continuously engaged catalyst and an exhaust fuel fan. &nbspThe Mulciber was also tested with unseasoned, fifty% humidity content material wooden and done really nicely. &nbsp&nbspThe team, who experienced by no means developed a stove just before the 2013 Wood Stove Decathlon, overhauled their first prototype and have now shaped the firm&nbspMF Fireplace&nbspto bring the stove to industry. &nbsp

The Workshop was held at the DOE’s Brookhaven Nationwide Laboratory in New York and introduced jointly a assorted assortment of&nbspstakeholders – learners, professors, industry, regulators, air good quality authorities – who invested a week collectively analyzing the issues and remedies to household cord wooden emissions.

Five stoves competed in the function, which is portion of the ongoing Wooden Stove Layout Challenge run by the non-profit team, Alliance for Eco-friendly Warmth. In 2013, the Design and style Challenge hosted the Wooden Stove Decathlon on the Countrywide Mall in Washington DC, a substantial profile event modeled following the Photo voltaic Decathlon.&nbsp This yr, the occasion was at a lab so that stoves could be tested more rigorously and test info could be shared with the participants.

The core issue is that most buyers do not work wooden stoves nicely and numerous use unseasoned wooden.&nbsp In addition, EPA certification screening for wooden stoves do not simulate how wood is burned in people’s houses.&nbsp For&nbspdecades, producers have been constructing stoves to pass that check, but not always to burn cleanly in homes.&nbsp This workshop resolved that by screening with cordwood that was not totally seasoned, capturing some start off-up emissions in the test and evaluating how automation can decrease operator error.&nbsp At Brookhaven, stoves were analyzed at four areas of their melt away cycle: heat begin, steady condition one, very hot reload and constant state two. The present EPA stove certification examination makes use of seasoned 2x4s and 4x4s and only checks for emissions following the start-up interval, once the stove is sizzling.

Automatic stoves, in which computer systems, not consumers, adjust the air-to-fuel ratio, are not able to be examined by EPA check strategies so they are not in a position to enter the US market.&nbsp&nbsp A key goal of the Workshop was to start off designing an different take a look at approach to the EPA’s technique, so that automated stoves can be analyzed and grow to be licensed in the US, as they already are in Europe. Tom Butcher, a senior scientist at Brookhaven Lab, hosted one particular of the general public webinars throughout the 7 days on that subject.

Rankings:&nbspThe judges gave double excess weight to emissions and performance, as they did in the 2013 Wood Stove Decathlon, because of the value of these values.&nbsp&nbspThis 12 months, the judges made a decision not to decide affordability because most of the stoves had been prototypes or systems developed to be built-in into other stoves and supreme costs and pricing was too speculative. Each and every of the ten judges scored each stove on innovation and marketplace charm. &nbspThe other a few standards ended up dependent on lab tests.
“We want to congratulate the MF Fireplace staff – and all the groups – for taking part in a method of sharing innovation, concepts and check results,” stated John Ackerly, coordinator of the function and President of the Alliance for Inexperienced Heat.&nbsp “These stoves have many of the remedies to extreme smoke from modern day-working day wood stoves and are challenging the EPA and the stove sector, to capture up with new technologies and new possibilities,” Ackerly mentioned.

The Wittus crew with the Twinfire.
Even though MF Fireplace stove, the Mulciber, experienced the highest mixed score, numerous of the other stoves stood out in key regions.&nbsp The German Twinfire, created by the Wittus team, experienced the second highest general efficiency, at seventy four%, and a single of the cheapest emission rates on a test operate. &nbspIts automatic air regulation enabled the stove to perform regularly effectively at distinct component of the burn cycle and it gained the maximum score for consumer charm, for its downdraft flame into a lower chamber.&nbsp&nbsp
The VcV, wired to monitor
temperature in important spots
The VcV, a New Zealand mechanical device that operates without any electrical energy, reached the highest typical effectiveness, at 82% based in portion on the lowest typical stack temperature at 167 levels (F), and the most affordable emission charge on one particular of its assessments.&nbsp It also&nbspacquired the 2nd maximum marks for innovation.&nbsp This was the only stove that did not need electrical energy and will be extremely cost-effective.&nbspA few out of 4 exams were extremely, really good, but on one the scorching reloads, some thing happened and that diminished its total figures, and took it out of contention for very first or second place.&nbsp This unit has undergone extensive R&ampD and is one of the entries that is closest to becoming all set for the marketplace.

The Catalus Ventus by ClearStak, acquired the optimum score of all for CO reduction, and the second
The ClearStak staff with the

optimum for emissions.&nbsp&nbsp It was a highly progressive entry, using dual cyclones, a pre-heated, constantly engaged catalyst and a fabric filter. &nbspIts sensors and controller held the oxygen rates extremely steady, in 50 percent a percentage level. The technologies could be built-in into a new stove, or added on to an existing stove. The designers did not consider to optimize performance, which impacted their all round score. &nbsp&nbsp

The Kleiss, all set for tests.
The Kleiss arrived at the competition with the hallmarks of an modern, automatic stove that could handle soaked wooden and virtually remove operator error.&nbsp The stoves sensors and algorithms had been designed to maintain quite very hot combustion temperatures and to let the operator to call for much more of significantly less heat, although prioritizing cleanliness.&nbsp Nonetheless, the stove did not perform as predicted, with secondary air contributing to principal burning with a large gas load. &nbsp&nbsp

Examination outcomes for all the stoves are offered listed here. &nbsp(References to grams for every hour are not equivalent to EPA gram per hour exams given that the Workshop utilized harder examination protocols.) A series of shows by the stove designers about their stoves and other stove and combustion professionals are also accessible.

The Wood Stove Style Challenge is a technological innovation competitiveness that also strives to deliver crucial stakeholders together to evaluate and understand about new stove technologies. &nbspPrincipal funding came from the New York State Vitality Research and Development Authority (NYSERDA), the Osprey Foundation and the US Forest Provider.&nbsp Screening assistance was presented by Myren Labs, Masonry Heaters Affiliation and Testo and Wohler, two German businesses who are pushing the envelope of precise real time lab and field tests of particulate make a difference. &nbspThe Chimney Safety Institute of America and Olympia Chimney donated the chimney installations, and Blaze King and Woodstock Soapstone also supplied assist.

The 12 member Organizing Committee oversaw building protocols, tests and scoring and included reps from Alliance for Environmentally friendly Warmth, Aprovecho Study Lab, Brookhaven National Lab, Clarkson College, Hearth.com, Masonry Heater Association, Massachusetts Department of Power Assets, Myren Labs, NYSERDA, US Forest Support and Washington Department of Ecology. The Committee is now contemplating possibilities for a 2015 Stove Design Problem.

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Dec. 4 Webinar: Very best Techniques in Wood and Pellet Stove Plans

Posted by Earth Stove on November 14, 2014 with No Comments as , , , , , , , ,
The College of Maryland Extension Woodland Stewardship Schooling program will host a one-hour webinar on Thursday, December 4th from twelve:00 p.m. to 1:00 p.m. to offer an overview of the “best practices” in wooden and pellet stove incentive packages throughout the United States.&nbsp
Indicator up below.
As renewable power programs develop around the region, far more and much more states are such as incentives for wood or pellet boilers and stoves. In contrast to other household appliances, this kind of as refrigerators, furnaces or washing machines, wood heating gear have no “Energy Star” labels for shoppers to check with to make strength performance comparisons. As a result, many states have devised a range of techniques to determine the eligibility of cleaner and more productive stoves and boilers.
This webinar will discover the functions of these programs, and will use Maryland’s stove incentive program as an case in point of how one particular condition fulfilled its objectives for guaranteeing shoppers purchase the most productive appliances available. The speakers will determine what they see as emerging ideal methods in stove and boiler incentive packages as these initiatives become far more mainstream.
This webinar features displays from Jonathan Kays, College of Maryland Extension All-natural Useful resource Extension Specialist John Ackerly, President of the Alliance for Eco-friendly Heat and Emilee Van Norden, Clean Power Program Manager of the Maryland Energy Administration.
The webinar is free and open to the general public. &nbspIndicator up now to reserve a spot.
For related content material:&nbsp

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Test Benefits, Shows and Images from the 2014 Collaborative Stove Style Workshop

Posted by Earth Stove on November 11, 2014 with No Comments as , , , , , , , , ,

Test Results

Portion of the Workshop principles was a prerequisite that teams experienced to publicly share their check results, which is a essential component of the collaborative and instructional approach. For the duration of the Workshop, each and every group introduced their examination data to the fifty attendees who had the possibility to go over the benefits and give comments to the &nbspteam. &nbspUnlike EPA test, which begins when the stove is currently very hot, we used a warm commence, capturing some start off-up emissions, we utilized cordwood instead of crib wood and we used higher humidity content material wooden. Be aware: any gram for every hour (g/h) references in the beneath test outcomes are not similar to g/h values from EPA check labs simply because we did not follow the Strategy 28 examination protocol.&nbsp

1. MF Hearth, the Mulciber. Powerpoint hyperlink.
2. The Kleiss stove. Powerpoint hyperlink.
three. much more coming quickly!

Staff Displays about their Stoves
Each and every staff presented the concepts and systems in the stoves. For a brief complex overview of all the stoves with make contact with data for the Groups, click right here.

one.&nbspThe Kleiss stove&nbsp(powerpoint)
two.&nbspThe Wittus Twinfire&nbsp(pdf)
three.&nbspThe VcV&nbsp(pdf)

Professional Shows
Throughout the Workshop, there were a series of expert shows and webinars about automation, standard stove technological innovation, public well being implications, air high quality, regulatory concerns and other related topics.

one. Dr. Tom Butcher, Brookhaven Nationwide Lab,&nbspAssessment of the Automated Stove Test Protocol&nbsp(powerpoint)
2.&nbspWebinar with the five groups, hosted by BTEC.
three. Glenn Miller, Fairbanks Air District, &nbspTechnology Improvements vs. Actions Modification&nbsp(powerpoint)
four. Ellen Burkhard, NYSERDA,&nbspRenewable Warmth New York&nbsp(powerpoint)
5. Norbert Senf, MHA, Emission Tests of Masonry Heaters (powerpoint)
6. Gael Ulrich, Smoke Particle Formation Essential, (PDF)

Pictures: Day 1

Ivana Sirovica, Jessica Peterson and Jeff Hallowell, from ClearStak&nbspBrookhaven Countrywide Laboratory.

Rebecca raking coal mattress to put together for the up coming load of gasoline.&nbsp
Many thanks to John Pilger and Chimney Basic safety Institute of The united states and Olympia Chimney for donating pipe and installation!
Indigo Hotel in Riverhead NY – our foundation for the week

The Testo exhibits real time emissions, with leading line demonstrating particulate subject (PM)

Rebecca Trojanowski gets rid of filters. The dark circle in foreground are the particulates on a filter from the examination melt away that will be weighed to determine grams for every hour.

Even the kindling is very carefully weighed so that every stove will get the very same warm up rick.

Jessica Peterson from ClearStak doing work late into the evening to get ready for testing tomorrow.

Photographs: Working day 2

Taylor Myers showing a thermal graphic of the Mulciber stove.&nbsp

Ben Myren, Tom Butcher and Eric Schaeffer firing up the New Zealand VcV stove.&nbsp

Taylor Myers exhibiting a genuine time digital display, employing bluetooth, of temperatures in his stove.

Produced by ClearStak, this genuine time digital show displays 154 degree stack&nbsptemperature, 529 in the firebox and 451 in the&nbspcatalyst. Approximated efficiencies ended up in the mid-80s.&nbsp

Glenn Miller from the Fairbanks Air District on the still left, Rob Rizzo from Mass. Dept. of Energy, and Gaetan Piedalue and Marc Suave from Polytest Labs, a EPA accredited take a look at lab. Ellen Burkhard from NYSERDA is peering into the stove.&nbsp

Ben Myren, Tom Butcher and Eric Schaeffer firing up the New Zealand VcV stove.

Day 3

Corey Van, 1 of the young ClearStak staff that assisted construct the Catalus Ventus.&nbsp

Rebecca Trojanowski loads the Catalus Ventus.

The tube on the right of black pipe is a Condar, which operates very in the same way to a dilution tunnel. Norbert Senf is employing it concurrently with the Testo PM analyzer.
A warm up take a look at load created by Ben Myren. This leading down burn off, with smallest kindling on top, and larger kindling on the base is a very effective way to commence fires.

Amanda Aldridge of the EPA talks with Norbert Senf (guiding flue pipe) about the Condar analyzer. Rob Rizzo from Mass. Dept. of Vitality in upper proper.

Electronic controllers that can be place in wood heating systems that had been part of Jeff Hallowell’s presentation. Harold Garobedian in purple jacket on appropriate, and Rafael Sanchez from the EPA guiding him.

A new Testo humidity meter that operates without pins.
George Wei hangs practically upside down to set a temperature sensor in the top of the flue pipe to evaluate stack temperature. This is a essential info point for deciding effectiveness.

Working day four &nbsp &nbsp &nbsp &nbsp &nbsp &nbsp &nbsp &nbsp &nbsp &nbsp &nbsp &nbsp &nbsp &nbsp &nbsp &nbsp &nbsp &nbsp &nbsp &nbsp &nbsp
John Ackerly on opening working day, welcoming absolutely everyone and chatting about how automated stoves can remedy many problematic problems issues that appear with widespread wooden burning.
From the still left to appropriate – Ellen Burkhard from NYSERDA, Lisa Rector from NESCAUM, Amanda Aldridge from EPA and Mark Knaebe from US Forest Services.
We invested hours in this place, possessing diverse displays each hour, with plenty of discussion and discussion. Right here, Ben Myren is presenting the testing final results of the VcV stove.
We invested several hours in this area, possessing various shows every hour, with lots of discussion and debate. Right here, Ben Myren is presenting the tests results of the VcV stove.

Gregory Elliiot and Peter Cullen from Wohler, and John Pilger from Chimney Basic safety Institute of The united states.

We managed to uncover a BYOB restaurant which led to far more crimson wine intake. From left – Rod Tinnemore, Dave Misiuk, Amanda Aldridge, John Ackerly, Norbert Senf, Ellen Burkhard and LIsa Rector.

Final Day
The Catalus Ventus exhibits outstanding hot catalyst temps in contrast to the both the stack and the firebox. This was for the duration of begin up, when it was emitting maximum smoke, but between the catalyst, the cloth filter, almost no smoke came out the stack.

Ivana Sirovica, a Study Fellow from Alliance for Inexperienced Heat, and Ben Myren, as Ben completed the ultimate test of the 7 days.

Tom Butcher using the Wohler particulate analyzer on the VcV stove. Because we utilised wood that was often over 25% humidity material, we had to deal with far more moisture in our tests instruments.
Beneath the VcV stove is exactly where the magic happens, and mechanical valves immediately close or open the major or secondary air, depending on what the stove wants to maintain a clean and productive burn up. THis stove managed a constant low melt away fee with lovely swirling flames in the upper part of the chamber.

Ben Myren displays how his thermocouples could study the temperature in 10 places of the stove at all moments. The best of the flue could be 250, when the air entering the catalyst was almost 800, and 1300 in the firebox.

Brian Gauld, the owner of the VcV travelled from New Zealand, in which there is also demand for automation that can increase stove performance much far more than stoves are probably to carry out when operated manually.

&nbsp &nbsp &nbsp &nbsp&nbsp Dr. Phil Hopke of Clarkson College and Mattian Woll of Testo.

Our twine wooden was kiln dried and then shrink wrapped so it would preserve a consistent humidity articles. The wooden was far wetter, on common, than wood employed in EPA examination certifications, which aided us evaluate how these automated stoves could execute with larger moisture content wooden.
Planning of kindling for the assessments.
George Wei and Yussef were two of Brookhavens proficient technicians. The two have worked on improving oil combustion techniques, outside wooden boilers and stoves.
The final stove is taken out, and demonstrates the problem of tests the identical working day as taking away stoves that are nevertheless scorching!&nbsp

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Photograph Album of the 2014 Collaborative Stove Design and style Workshop

Posted by Earth Stove on November 5, 2014 with No Comments as , , , , , , ,
Ivana Sirovica, Jessica Peterson and Jeff Hallowell, from ClearStak&nbspBrookhaven Countrywide Laboratory.

Rebecca raking coal mattress to put together for the next load of gas.&nbsp
Thanks to John Pilger and Chimney Safety Institute of America and Olympia Chimney for donating pipe and installation!

Taylor Myers showing a actual time electronic show, using bluetooth, of temperatures in his stove.

Indigo Resort in Riverhead NY – our foundation for the 7 days

The Testo exhibits real time emissions, with prime line showing particulate issue (PM)

Rebecca Trojanowski removes filters. The dark circle in foreground are the particulates from the check burn that will be weighed to establish grams for each hour.

Even the kindling is very carefully weighed so that every stove gets the very same warm up rick.
Glenn Miller from the Fairbanks Air District on the remaining, Rob Rizzo from Mass. Dept. of Power, and Gaetan Piedalue and Marc Suave from Polytest Labs, a EPA accredited test lab. Ellen Burkhard from NYSERDA is peering into the stove.
Jessica Peterson from ClearStak functioning late into the evening to prepare for tests tomorrow.

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Automated Wooden Stove Functions Getting into the Market

Posted by Earth Stove on October 24, 2014 with No Comments as , , , , , ,

This year there are at the very least 50 % a dozen stoves on the marketplace that have some automatic characteristic that did not exist on the market place a number of several years back. A lot of of these attributes support the stove burn off fairly cleaner, and are aiming at a demographic seeking for simpler procedure. It really is still too early to notify how effectively the automated attributes function, compared to what they declare to do.

To really recognize the benefits of automation attributes, whether or not it be the traditional bi-metallic coil or up-and-coming digital sensors and on-board personal computers, you require to have aspect-by-side checks with the automation on and off. Easier stated than done. &nbspIn Europe fully automatic stoves – indicating stoves that you can “load and go away” – and the operator has no or constrained management to adjust heat output, are previously on the marketplace. &nbspNone are on the industry in the US as there is no check technique to certify them. &nbspThe regulatory barrier to perhaps much cleaner stoves from entering the US industry is being dealt with at the Collaborative Stove Layout Obstacle, in which a automatic stove tests protocol will be produced and submitted to the EPA.

3 key players in the US stove production local community – Quadrafire, Travis and England Stove Functions – now have automated methods to lessen commence up and reloading emissions, which is one particular of the most crucial emissions issues that requirements to be tackled. The Travis system makes use of electricity and is likely the most potent of the 3, and the other two never need to have electric power. &nbspThe England Stove Functions stove has built-in their innovation in a really affordably price tag stove.

The real assure of automation is not to get a very hot stove to strike an ultra-minimal particulate make a difference amount in a lab, but to boost genuine-planet functionality by seamlessly optimizing performance throughout the melt away cycle, to reducing begin-up emissions and minimizing emissions from unseasoned wooden. EPA certification tests does not try to take a look at these characteristics of a stove, so stove organizations have not experienced significantly incentive to invest a good deal of time, work and income to layout for that.

In the United Kingdom reliable burning heating devices are not categorised by their measurement, i.e. stove vs. boiler, but by no matter whether they are computerized or guide. To obtain a ranking to be utilised in a lot more polluted locations, manually operated stoves need to post lab assessments showing 5 burns for each and every output stage since “manually managed appliances present much greater variation among tests.” Automated appliances only have to be examined three times at every single output degree.

The chart underneath displays a wide assortment of technologies that exists in both stoves and boilers in Europe, but only exists in boilers in the U.S., and considerably of it is imported from Europe. (Click right here for PDF that involves this chart and some discussion of these concerns.)

In November 2014, Brookhaven Lab will be screening automated stoves and prototypes at a&nbspstove layout workshop&nbspto see how efficient they are. Their designers aspire to be portion of a actual craze of cleaner, much more automatic household wood heating. But can they do it at an affordable price stage? And, are consumers completely ready for them? Below, we will seem at stoves with automatic characteristics that are presently on the marketplace.

A bi-metal coil functions as a warmth-
delicate thermostat which can partly
management the opening and closing of the damper.

1. The bi-steel coil. The oldest type of automation of steel wood stoves is the bi-metal coil which has been employed on scores of stove types and is now largely just utilised by a couple of catalytic stove makers, principally Blaze King and Vermont Castings. Some of the new automated functions do something related as the bi-metallic coil, but possibly do it significantly much better. A bi-steel coil is simply a thermostat run by a metal coil that can shut a damper down when its genuinely hot, and open up it up when its cooler. The stove’s air inlet can nevertheless be operated manually, but the bimetal coil will alter the air inlet more. They have a tendency to not perform nearly as effectively on non-cat stoves, because the temperatures in a non-cat firebox can be much more unpredictable, and if the coil shut down the air, or opened it too significantly, the stove would work improperly – and critically – it adds far way too a lot uncertainty in passing the EPA emissions certification take a look at.

The rotating cause mechanism in the
Smartstove Selection by Englander
reduces air circulation once the stove is hot.

2. The up coming three stoves – the England Smartstove, the Quadrafire and the Travis – all use diverse automated approaches to beginning the fireplace quicker and with fewer emissions. Right after the start-up period of time, the stove operates like any other. The Smartstove by England Stove Performs was exhibited at the Wood Stove Decathlon on the National Shopping mall in 2013, but it was even now in growth so it was not element of the competitiveness. The stove has an “automatic air setback mechanism” which is a major air control with a rotating trigger which controls the opening and closing of air vents. When the operator begins a hearth, they provides the stove highest air and sets the set off. When the stove will get scorching enough, the bring about releases and principal air is lowered, while still delivering sufficient secondary air.

Quadrafire’s Explorer two Commence-Up air
handle aids give the stove a lot more
air in the initial twenty five minutes.

3. Another current arrival on the marketplace is Quadrafire’s Explorer II, which appears to provide comparable automation. The website states “Automatic Combustion Control-offers the fire with air when it is most essential-major to lengthier burns.” A marketing and advertising video states the operation is so simple that all you have to do is “load the wooden, light the fireplace and wander away.” In accordance to the installation manual, ACC is generally a timer which the operator should manually initiate with a manage mechanism. In essence, it opens the front air channel which enables air to enter for twenty five minutes prior to closing. As soon as the entrance air channel is closed, manual controls are used to deliver preheated air to the prime of the firebox to burn off the relaxation of the unburned gases in the remaining 3 combustion zones.The Alliance confirmed with a company representative that no sensors are used or essential following the operator sets the timed management system.

The slider on the Cape Cod
adjusts the charge of burns.

four. Travis industries Hybrid-Hearth technology™ created an automated “Greenstart” which shoots 1,four hundred degree air into the firebox for fifteen minutes to start your fireplace, or when you reload. The Greenstart can significantly lessen start-up emissions, and emissions in the course of reloading on a lower temperature mattress of coals, by jumpstarting the start-up approach and heating the wooden up more rapidly than it would with newspaper. Soon after the 1st fifteen minutes, the stove has no automated features, but some of the Travis stoves that use catalysts are amid the cleanest in the sector. The Travis Cape Cod stove won 2nd prize in the Wood Stove Decathlon.

5. The Nestor Martin’s Efel has an “automatic mode” that can keep the area at a wanted temperature. Or in timer method, it can alter the area temperature at a pre-set time. The stoves uses a basic ambient air thermostat in a distant management unit that you can function from the sofa or anyplace nearby. If you do not use it in automatic manner, the remote handle enables the person to modify the depth of the fire just as you would with a guide air management. One of the essential things that distinguishes this Efel from genuinely automatic stoves is that there are no sensors in the stove that can avoid the stove from smoldering or override an adjustment by the operator that would make the fireplace smolder.

HWAM’s Autopilot technologies utilizes
sensors, alongside with a bi-metallic spring to
control combustion temperatures.

6. The last two stoves are far more completely automated stoves and are on the industry in Europe, but not in the US. Danish organization HWAM, whose automation will be third-party examined and assessed at Brookhaven Lab in November, has built-in a new patented system-Autopilot. Alongside with the Austrian Rikatronic, described below, the Hwam is one particular of the most sophisticated and totally automated stoves in Europe. HWAM 3630 IHS attributes a management method that electronically steps combustion situations through the use of a lambda oxygen sensor and a thermocouple. An onboard personal computer then allocates combustion air by way of three individual valves to assist the customer achieve the very same outcomes at home that are obtained in check labs underneath perfect situations. According to the Danish Technological institute, HWAM stoves with this system are 17% more effective and make 40% a lot more heat.

Rikatronic has a microprocessor-controlled
motor and a flame temperature sensor
which drives the RLS air distribution program.
The light tells you the optimum time to reload.
By pressing the button, the stove is aware
&nbspit has refreshing wood to deal with.&nbsp

7. There are many variations of the Rikatronic wooden heater program. The Fox II stove attributes manual and automatic control settings. In manual method the air distribution can be managed in every combustion stage-even in the function of a electrical power outage. Automation in Rikatronic technological innovation functions with a microprocessor-controlled motor and flame temperature sensor which operates the RLS air distribution method. Airflow in every of the 5 combustion zones is properly modified for productive burn off. A purple mild indicates the ideal time to reload the stove. You can established the space temperature you want and once the needed space temperature is arrived at, you can activate the eco manner by urgent the Rikatronic³ button. This brings about the air offer to be optimally controlled to maintain the hearth for as long as possible, without having smoldering, and to go away powering as small ash as possible. Power use is two – four watts.

The initial 5 stoves described here signify American improvements that can partially decrease extreme wooden smoke, although the very last two stove from Europe signifies a far more holistic strategy that can support lessen emission not just in the start up, but all through the melt away cycle. &nbspThey are all still fairly new systems and we are likely to see a lot more companies boost upon them in coming many years.

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Federal government Report States Wood & Pellet Heat Dominates Household Renewables

Posted by Earth Stove on October 10, 2014 with No Comments as , , , , , , , , ,
The 2014 Winter season Fuel Outlook launched by the US Power Info Agency on Oct. seven, predicted that wooden and pellet heating would carry on the pattern of becoming the nation’s fasting expanding warmth supply. &nbspOverall, wooden and pellet heating grew 38% from 2004 to 2013, and now accounts for 2.five% of all house principal heating.
The EIA predicts wooden and pellet heating will expand once more in the 2014/15 winter by 4.7%. &nbspElectricity is predicted to increase second quickest at three.one%. Organic fuel is at .07% development and oil and propane are each and every predicted to drop by about 3.two%. &nbspRegional knowledge shows wooden and pellet heating developing more than 7% in the northeast and Midwest, and only two.five% in the south and 1.eight% in the west. It was only two a long time in the past that the EIA started out to contain wooden and pellets in the 2012 Winter Fuel Outlook, even however considerably more residences have wooden and pellet stoves than have oil furnaces.

Nationally, solar and geothermal dominate headlines and media imagery, but wood and pellet heating stay the dominant gamers in minimizing fossil fuel utilization at the residential degree. &nbspIn 2014, the EIA says wooden and pellet heat will produce .58 quadrillion Btu, or 67% of the nation’s total, although household solar will generate .twenty five quadrillion Btu, or 29%. &nbspMeanwhile, geothermal creates only .04, or 4%, and is not showing constant increases like solar.
Whilst wood and pellets are the quickest growing heating gas in The united states, residential solar is increasing even faster in the electrical energy market. At current rates, residential photo voltaic could produce a lot more strength than residential wood and pellet stoves by 2020. &nbspSolar has loved generous taxpayer subsidies with a thirty% federal tax credit rating in addition to condition incentives. &nbspThe federal solar credit rating is set to expire at the conclude of 2016, but by then the expense of solar panels may have diminished ample for ongoing expansion with out federal subsidies.
Wood and pellet heating and solar are not competing technologies in that 1 generates electricity and the other heat. &nbspThey are usually mixed to make a residence practically carbon neutral, a approach which is transferring far more quickly in Europe than in the US due to higher fossil gas costs and favorable govt policies. &nbsp
In Europe, a lot of international locations are aggressively incentivizing greater effectiveness pellet stoves and pellet boilers. &nbsp&nbspIn the US, the Bush and Obama Administrations did not push for incentives for cleaner and more efficient pellet tools but relatively has permit Congress and industry shape a tax credit score with out any successful efficiency or emission criteria. &nbspAs a outcome, the growth in the wood and pellet sector is not predominantly an enlargement of cleaner and far more efficient products, as it is in Europe.&nbsp Sales of cleaner pellet stoves are increasing in the US, but the progress of wooden heating in America contains some really polluting products this sort of as outdoor wood boilers, also knows as outside hydronic heaters and new&nbspunregulated wooden stoves that have no emissions expectations.&nbsp Right after several many years of delays, the EPA is last but not least regulating these systems and necessitating them to meet up with emission specifications by summer time of 2015.&nbsp
With no successful federal laws from the EPA, some states have been guiding the marketplace towards cleaner and much more effective wood and pellet heating products, with Maine, Maryland, Massachusetts, New Hampshire, New York, Oregon and Washington having the guide.

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Image essay: wooden stoves around the entire world

Posted by Earth Stove on October 7, 2014 with No Comments as , , , , , ,
Heating with wood stoves is much more and more widespread in a variety of nations around the world all around the world, with rising fossil gasoline rates, incentives, poverty and access to other affordable fuels component of the picture. &nbspWe manufactured an try to present typical stoves in more than a dozen nations around the world, exposing a common difficulty of reliance on old, inefficient stoves. &nbspMost countries outdoors of North The usa and Western Europe have no restrictions that set specific make a difference expectations for new stoves. &nbspThe problem of community funding of modify out programs is typically not an selection. &nbsp
With the concentrate on renewable electric power, several nations are neglecting the development of a era of cleaner wooden and pellet heating stove engineering.&nbsp The issue of building cleaner prepare dinner stoves internationally has acquired traction, but aiding impoverished wooden and pellet stove customers in temperate international locations is not yet a key public policy problem.&nbsp This has been the situation in the United States the place pellet stoves have been systematically sidelined in favor of generous federal and state subsidies for photo voltaic panels, resulting in an increased reliance on old, uncertified stoves. &nbspWood stove technological innovation is establishing in several nations, as shown in some of the images under.&nbsp But the pace is considerably also gradual to match the economic possibilities and environmental positive aspects that wooden gives, as nicely as the air top quality dangers inefficient combustion can in any other case pose.

The problem is turning out to be more and more global: the political and navy crisis in Ukraine is driving increasing reliance on old and new stoves in a lot of nations around the world while the banking disaster in the US and Europe has contributed to a meltdown in Greece, leading to common unemployment and a nationwide wood stove resurgence.&nbsp
Wooden stoves are significantly a lot more seriously utilised by rural, minimal and middle-earnings populations about the world who usually absence the political clout required to influence choice makers. &nbspInstead of building the technology to reduce its polluting effects, choice makers frequently limit its use, more squeezing vulnerable populations. &nbspThe&nbsppublic wellness implications necessitate that we must quickly reduce wooden smoke, but the answer want not rely on heavily sponsored fossil gas infrastructures that have dire worldwide warming consequences. &nbspWood and pellet stoves keep great guarantee as a renewable heating technological innovation as they become much more cleanse and effective.

The effort led by the International Alliance for Clear Cookstoves is an exceptional design of cooperative R&ampD, funding and training. It is time we develop a similar model for warmth stoves.

Byurakan, Armenia






Georgia (formerly USSR)




&nbsp &nbsp &nbsp &nbsp &nbsp &nbsp &nbsp &nbsp &nbsp &nbsp &nbsp &nbsp &nbsp &nbsp &nbsp &nbsp &nbsp &nbsp &nbsp&nbsp


New Zealand


South Ossetian Autonomous Oblast&nbsp

(previous USSR)


St. Petersburg,&nbspRussia

Sikkim, India



United States

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