With our biomass furnace ratings, you can avoid all of the sales hype and find value. We have researched the manufacturers' data and combined that with our heating system service experience to provide our unique system of ratings. It truly is like taking a repairman with you while you shop! These reviews are for heating units that burn renewable fuels and transfer that heat to a duct system for distribution throughout the home. We have given you our top pick followed by a complete list of manufacturers and reviews of their products.
Our top pick for biomass furnaces is the NCPF110 from Napoleon. The units are made in Canada and are sold throughout North America. It is a multi-fuel furnace with digital controls and a three stage control for optimum performance. It has a large 10 cubic foot hopper and is backed by a very good warranty.
We continue our biomass furnace ratings with an alphabetical list of manufacturers and reviews of their products.
This brand is from LMF MANUFACTURING. It is available in two models BM 620-9 which is a 100,000 btu corn furnace and an AH 170 which is a 170,000 btu corn furnace. The units have a modulating control called the COAL-TROL which some are calling the CORN-TROL. This control adjusts the pellet and air flows to very closely match the heating setpoint. This can save fuel as well as improving the home's air quality by having longer heat cycles. They are factory wired for air conditioning. The hopper for storing the corn is not integrated and the warranty is not as good as some of the other brands.
This brand is a part of NATIONAL STEELCRAFTERS. The SP8500 can burn wood pellets and corn as well as other fuels and features twin blowers and a large (105,000 btu/hr) heat output. It has digital controls but the warranty is not as good as some other brands.
The GA series consists of five sizes of boilers to match the heating requirements of the home. They have a durable stainless steel heat exchanger and electronic controls. They can burn several types of grains as well as wood pellets but the guarantee on the units is not very good.
The GA SERIES offers furnaces that can burn wood pellets or grains. They feature a durable stainless steel combustion chamber and programmable electronic controls. The guarantee on the heat exchanger is good but for other parts the warranty is not.
This brand has autostart so that you do not have to manually light the unit at the start of the season. It is designed as an add-on to an existing system (the unit has no provision for adding air conditioning). It has a stainless steel burner pot and heat exchanger for durability as well as a large hopper with an optional extension available. Their THUROHEAT heat exchanger transfers more heat to the room air as it spends more time in contact with the heat source. The units also have built-in programmable LCD control display and a two speed blower. The heat exchanger warranty is not as good as some other brands.
These furnaces burn wood pellets and have digital controls. Their website is not much help and does not have a stated guarantee for their products.
These furnaces are made in Canada. The Maxi Comfort units can burn wood pellets or grains and have a large 200 pound hopper. They also have a large heat output at 110,000 btu/hr but the guarantee on the firebox is not very good.
The AUTOPELLET AIR units offer manual, semi-automatic, and fully automatic versions of their pellet burning furnaces. They have a fully integrated room temperature sensor that modulates the air flow as well as the burner to maximize comfort and efficiency. The brand is backed by a good guarantee but is only available through dealers in parts of the USA and Canada.
These units are made in Canada and are available in North America. The NCPF110 is a multi-fuel furnace with digital controls. It has three stage control for optimum performance. It has a large 10 cubic foot hopper and is backed by a very good warranty.
The NPB furnaces burn wood pellets and offer two stages of firing. They feature automatic controls and a self cleaning burner but their website is not much help and does not have a stated guarantee for the units. The brand is made in Canada and is a part of UNITED STATES STOVE COMPANY. The furnaces are available throughout North America.
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This brand is made in Canada by STOVE BUILDER INTERNATIONAL and is available in the USA as well. The CADDY ALTERNA units can burn wood pellets or other biomass pellets. The unit has electronic ignition and is EPA certified for clean burning. They offer an optional fresh air intake and a backup electric heating element. The unit has a heating capacity of up to 120,000 btu/hr but can be adjusted on the control panel to provide for better heating cycles for the home. The units are sold through dealers and are backed by a very good warranty.
This brand is manufactured by EVEN TEMP INC. and is available in North America. The REVOLUTION furnace is a unit that can burn grains as well as wood pellets. The unit is self igniting (even when corn is to be used) and self cleaning. The unit starts by igniting the wood pellets and then automatically switches to the selected fuel. The units can be manually controlled or by thermostat. The SCF-050 is a smaller furnace that is designed as an add-on to an existing heating system. The furnaces are backed by a very good guarantee.
These furnaces are available in three sizes and use gasification technology for clean burning. They have a firebrick lined combustion chamber and are backed by a good warranty.
The 8500 model furnace can burn corn, pellets and other biomass. Their website is not much help and does not have a stated warranty policy.
This brand is made by NORTHWEST MANUFACTURING INC. The FORCE 20 burns wood pellets while the FLEXFUEL models burn cordwood and pellets. The FLEXFUEL units are available in two sizes and feature a variable speed induced draft fan and advanced control with a lambda sensor. They are clean burning but the guarantee on the units is not very good.