Friday, October 30, 2015

Fröling T4 Installation-Lothrop Elementary School, Pittsford, Vermont

There are two new Fröling T4 boilers heating the two buildings that make up the Lothrop Elementary School.

The boilers were installed by Sunwood Biomass 802-583-9300.





Fröling T4 Installation-Proctor Elementary, Proctor, Vermont

T4_Cross_Section_thumb[4]The Fröling T4 is the newest boiler to our lineup. The T4 is a commercial or institutional ASME rated boiler that will burn both wood pellets or dry woodchips.

  • 500,000 BTU/hr
  • ASME Pressure Vessel
  • Fully Automatic
  • Wide range of fuel feed systems

The Proctor Elementary School is approximately a 60,000 sq. ft. building that originally had a coal fired steam system. It was converted to an oil fired hot water system 30-40 years ago. The old oil fired boiler was replaced with a modern new boiler and the new primary boiler is our Fröling T4 150. It is connected to an internal 20 ton pellet store room with easy fill access in the front of the building. The system was installed by Froling Energy 603-924-1001.




One of the old coal chutes


The old pneumatic building control compressor which has been replaced with a wired system.


Outside Pellet Fill Connections and the new oil fired back-up boiler.



Toby Wells and Mark Froling (left&right) and Gerald Roiter (center) from Fröling Austria

Friday, October 9, 2015

USA Nordic Sport Announces Sponsorship Agreement with Tarm Biomass

2015-10-09 11_27_49-Capture

October 6, 2015, Park City, UT – USA Nordic Sport (USANS) has just announced that it has signed a sponsorship deal with Tarm Biomass.  Tarm Biomass will become the official Alternative Heating Solutions Provider supporting USA Nordic Sport with significant financial commitments.

“We are very excited to enter into this partnership with Tarm Biomass”, said USANS Sponsorship Director, Tom Bickner, ”their financial support will greatly help us in our pursuit of fielding the best Ski Jumping and Nordic Combined athletes in the world, while providing sustainable development programs.”  Scott Nichols, President of Tarm Biomass added “We are thrilled to support the hard working athletes and the proud tradition of the USA Nordic Team.  We identify with and salute the grass roots efforts of the USANS program and the fact that the U.S. Team turns out some of the best athletes in the world, despite a comparatively small budget.”

Tarm Biomass® imports and distributes HS-Tarm and Fröling wood boilers, wood pellet boilers, and wood chip boilers for residential, commercial, and institutional central heating. The equipment lines they sell provide their customers with energy independence, enhance rural economic strength by keeping fuel dollars local, and encourage forest stewardship by providing uses for low grade timber.

Wednesday, September 16, 2015

Saturday Open Houses

We will be having two Saturday Open House Events in September and October.

Date: September 26th, 2015
Time: 8:00 am to Noon
Place: 4 Britton Lane, Lyme, NH 03768

Date: October 17th, 2015
Time: 8:00 am to Noon
Place: 4 Britton Lane, Lyme, NH 03768
Map picture

Mark us on your calendars:

  • Learn how you can take control of your heating bill with Local Fuel.
  • Incentives available in NH, VT, MA, and NY.
  • See a boiler in operation.
  • Talk with an expert.

Wednesday, September 9, 2015

The First Fröling T4 Wood Chip Boilers Have Arrived

The first Fröling T4 boilers have arrived and are being installed. The T4 is a 500,000 Btu/hr. commercial grade boiler that can burn both wood chips or wood pellets. This installation is at the Sharon Elementary School, located in Sharon, VT.

Froling T4

Froling T4

Froling T4Froling T4

Friday, September 4, 2015

Putting Pellets Away Article

Putting Pellets Away article is located here.

This article is a nice overview about point of use wood pellet fuel storage and is worth a read for anyone considering switching to heating with wood pellets. Several industry experts we know and trust are quoted in the article and what they have to say about wood pellet storage is spot-on in our opinion.

11214299_1110986658913937_3225069413954870543_nIt is worth noting that the article misses an important segment of fuel storage, custom built storage, which is usually built as a special interior room in a basement. Custom storage is usually built from plywood and often utilizes sloping sides that cause pellets to flow to a central auger or to suction pickups. Building custom pellet storage requires fastidious attention to air and dust sealing at all seams and especially at access doors. Custom bins are durable and provide a unique opportunity to create storage in spaces that won't accommodate factory built cloth or steel bins. We have even seen ingenious bins built in old jail cells and integrated in hose drying towers in firehouses.

csm_Pellets-Saugsystem_RS_4_RS_8__79d4729d4eIt is also worth noting that manufacturers of heating boilers are constantly improving technology used to convey pellets from the bulk storage bin to the boiler. Fröling is introducing a new fuel pickup system that uses up to 8 suction points mounted on a flat floor. By eliminating the need for sloping sides in a custom storage bin, approximately 25% or more fuel can be stored in the bin.

There are many other tricks of the trade not mentioned in the article. We recommend consulting with an experienced installer before installing any fuel storage, though the industry is still young, many installers have 10-15 years of experience in the trade and have learned much in that time. Many of those industry experts have been working to create wood pellet delivery and storage standards. These documents are still in progress, but there is an active effort to standardize the industry.…/…/putting-pellets-away


Fuel Storage located in a Congregational Church built in 1787.


Fuel storage located in an available narrow location.


Fuel storage in the basement of an old school house.


Fuel storage in the drying tower of a fire department.

Modern Wood Heat Forum-Montshire Museum, Norwich, VT


Hydronics for High Efficiency Biomass Boilers Training


Thursday, July 23, 2015

What Do We Know About the Carbon Neutrality of Wood Combustion?


Some say that burning wood makes more carbon dioxide than burning coal. They've either got an agenda or lack the knowledge to make a more nuanced statement. It is a shock statement poorly applied to wood fuel for heating. Those who favor using wood fuel rebut that carbon dioxide output compared to coal is a largely factor of fuel moisture content. These discussions spiral into tedium quickly. In the real world many variables impact carbon calculations and the data can be manipulated for desired effect.

In the heating universe we should care little about such comparisons. Unfortunately, in our power-centric energy world, electricity policy often metastasizes to thermal policy, though power and thermal uses of wood fuel are very different. Carbon dioxide output by fuel weight is NOT the crux of the matter. The crux of the matter is how quickly wood is burned vs. how quickly it grows back.

If all of the carbon dioxide produced from burning wood is recaptured by growing trees there is a balanced, harmonious carbon cycle. That's the same old, irrefutable story.

"No!", say some. If a tree is burned, carbon dioxide is released quickly. It takes a long time for a tree to re-grow and sequester that earlier released carbon. That means that burning wood has delayed carbon benefits and our environment can't withstand delay.

We may never hear the end of these types of arguments.

What about sustainability? Huge tracts of forests are actively managed and harvested. Few tracts are untouched and left to become old growth. Austrians claim over 100 years of active and sustainable forest management and have one of the most robust wood heating industries in the world. However, I'm not convinced they've got sustainability figured out completely. If maintaining a stand of trees is sustainable, then maybe the Austrians have succeeded. Forest cover is increasing in Austria. Unfortunately, the forest is more than a stand of trees. And there is more to sustainability than carbon. What is truly sustainable involves detailed mapping of forest soils, understanding nutrient availability, and symbiotic ecologic relationships, among other factors that we don't fully understand. Consider that it has been less than a decade since we began to understand the importance of bacteria that inhabit our bodies. We often speak about sustainable forest management ensuring carbon neutrality, but we don't really know what is sustainable because we haven't been studying this topic long enough to know. Probably, forest management focused on carbon absorption through rapid growth is not actually sustainable given so many other factors that impact forest health.

It is also no small matter that well maintained forests in the developed world might need to pull more than their own weight when it comes to carbon. Huge tracts of forest in the developing world are being turned to field, or worse, desert. Do healthy forests need to add carbon at double time? How quickly will the forest health equation change as global air composition and temperatures change? Sustainability is not easy to define and carbon emission is a global topic.

There is big money in carbon neutrality- big tax credits, big rebates, big grants, and big private investment. Unfortunately, investments in the biomass heating industry hang in the balance waiting for determinations about carbon neutrality. In reality, carbon neutrality may be the least tangible and most divisive policy tool for the biomass heating industry to focus on.

Here's the rub as I see it: We place far too much emphasis on carbon neutrality. I understand the politics. Sometimes we say and do things to swing the pendulum, but we need to be honest with ourselves. There is a lot more to forest based energy than carbon.

While using best management practices, increasing the utilization of wood for heating fuel should be an important energy policy in forested northern regions where fuel is for practical purposes, just out the back door or just down the road. Most expenditures on wood fuel for heat stay in the regions where the wood is harvested. In rural areas, wealth retention is extremely important, as money easily flows out of regions that produce nothing. Of course, wood is almost always the least expensive fuel in rural areas. Profitable, properly managed forest harvests create disincentives for development, as managed forest harvests produce steady return on investment. Even a fundamental conservationist would rather see a working forest than no forest at all. Most working forests are also healthy forests.

Carbon neutrality is a handy lever for renewable energy decision makers, but for biomass thermal energy, carbon neutrality should not be a pass/fail criterion nor even a primary reason for deciding whether or not biomass thermal energy is worthy of investment. There are better reasons for feeling good about wood.

Tuesday, June 30, 2015

Lambda Controlled Wood Boilers

Lambda controlled combustion in wood burning boilers combines modern computer processing and control with the ancient use of wood as fuel.

The problem: A traditional problem with wood burning is the emission of unburned, yet energy rich gasses as smoke. Burning smoke enhances efficiency and decreases harmful emissions. If wood is heated and turned into charcoal without active flame, about ½ of the energy content in the wood will be released as smoke. The combustion of wood involves three phases- drying (evaporation of water), smoke production, and charcoal. All three phases are taking place to some degree simultaneously, however the bulk of a load of wood in a combustion chamber will generally be in one phase or another depending upon how long the wood has been exposed to high temperatures/fire. Combustion of wood smoke is only achieved at very high temperature and with proper combustion air mixing. Because wood is changing phases as it is heated/burned and because wood is an irregular fuel by shape, species, moisture content, age, etc. regulation of combustion air in order to optimize combustion and to minimize emissions of smoke is very difficult to maintain manually.

The solution: Wood gasification boilers typically burn wood in an upper (primary) combustion/wood storage area. This combustion zone is relatively low in temperature and is quite large. The primary combustion chamber is generally supplied by air at the base of the primary combustion chamber. Below the primary combustion chamber there is a secondary combustion zone generally consisting of a ceramic refractory chamber with injected combustion air. The secondary chamber is designed for high turbulence, high temperature and high residence time of the combustible gasses. A lambda control system automatically adjusts primary and secondary combustion air through independent air controls, optimizing combustion as the wood burns. The lambda control system monitors excess oxygen and the temperature of the exhaust, feeds this information to the processor, and adjusts air damper servo motors appropriately. Combustion air is adjusted to automatically match the composition of the wood fuel at any stage of combustion, and for any variation in the wood fuel. Harmful emissions are reduced and efficiency increases.

FHG Wood Boiler Features

Thursday, May 21, 2015