Residential ultra-efficient wood gasification furnaces
Explore the G Series
Residential high-efficiency wood and coal burning furnaces
Explore the MF eSeries
Commercial biomass furnaces for full automation
Explore the B SeriesAll the resources and information you’ll need when researching or running an outdoor furnace.
Not Sure Where to Start? Explore our Boiler Basics page, everything you need to know before purchasing an outdoor furnace
Learn More About Outdoor Furnaces
Everything you need to know about installing and maintaining your furnace
From outbuildings and driveways to unlimited hot water for showers and hot tubs, discover the many ways you can use an outdoor furnace.
Why HeatMasterss may be the right choice for your family
Animations Get an better idea of how heating with hydronics works 
Take a deeper look at how the B Series furnace works.
Take a deeper look at the process of wood gasification inside a HeatMasterSS G Series furnace.
Take a deeper look at the process of wood gasification inside a HeatMasterSS G Series furnace.
Take a deeper look at how the B Series furnace works.
Testimonials See what other people are saying about outdoor furnaces
The Science of Outdoor Boilers in 4 Levels Learn the science behind how our boilers work as explained to a child, college student, customer, and expert.
