Check out our ThermoWind Video below
If you are interested in turning the forced air furnace into one that burns coal,
you can simply add the shaker grate system that is demonstrated in the video below!
Rated to Heat up to 8500+ sq. ft.
Loading twice a day but it will heat more but it has to be loaded more often
The ThermoWind 4000 is designed to heat a large building It will have two full-size furnace fans on it (2000 CFM each), to better heat a large building – with a total of 4 ducts (2 supply and 2 return). It has a 68″ firebox that is 3 feet wide and has two firebox doors; one on each end, to better and easier load the furnace. It has two forced air draft fans with automatic dampers on them.
It is rated at 205,000 BTU burning a good seasoned hardwood like oak.