


The Pristine Gasification Series outdoor wood furnace models are our most economical & energy efficient units, burning up to 60% less wood than other outdoor wood furnaces on the market.
The Multi Pass Series of outdoor furnace models are built with a triple pass heat exchanger for higher efficiency than other traditional units, shaker grates & removable ash pan.
Our Biomass Series is a commercial grade wood chip boiler that is an automated fed system manufactured with a triple pass heat exchanger, shaker grates and removable ash pan.
New technologies and traditional elements combine to make one of our most-loved (and purchased) stoves to date. We designed the Multi Pass Stove with simplicity of use in mind. If you need an economical heating solution then this is the workhorse you are looking for (without all of the hay). Our Multi Pass stoves feature our triple pass system and other industry-leading features to make heating your home more economical and less labor-intensive.
Our Multi Pass stove line incorporates new technologies (like our triple pass water-filled heat exchanger and stainless steel heat exchanger tubes) with traditional outdoor furnace features (like shaker grates and ash pan). Several different sizes allow for a broad range of applications and abilities ranging from small domestic situations to large multi-building facilities as well as commercial use. The extra-large, insulated firebox door makes filling the stove safe and comfortable. The operation and maintenance of the stove are made simpler by the shaker grates, removable ash pan, adjustable primary air blower, and water level indicator. Our turbo draft system forces secondary gases downward to be burned before leaving the stove via the triple pass water-filled heat exchanger. Some traditional elements, many new features, one amazingly efficient stove (40% more efficient than traditional outdoor stoves in fact.)
When it comes to heat transfer, more thermal conductive area is better than less. The longer the hot air has the opportunity to pass on its thermal properties with the water, the better transfer of thermal energy to your home or business. After initial combustion, the air is routed out of the firebox and into an upper chamber where it takes 2 more trips down a water-enclosed passageway, allowing it to impart more of its thermal properties to the surrounding water. This journey allows the Multi Pass to capture much of the heat that would normally be lost through the release of escaping gases from a traditional stove.
With so many applications, saving money on your heating needs has become easier and more varied. Having a stove that can keep up with your heating needs is important. Having a stove that you can depend on is even more important. As the makers of the most trusted outdoor boiler on the market, we are happy to offer you both.

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