The Keystoker 160,000 BTU double wall constructed Koker furnace has a 9" wide flat grate stoker and patented thermal heat exchanger. This popular furnace can be used as an add-on or used freestanding to heat a small home. It comes with an opening on the front (3" X 25") and an opening on the top (11" X 19") to distribute warm clean air into your home.
Tested at 88 to 90% Efficiency, the Koker can be chimney vented or direct vented. It is completely automatic, working off a Honeywell Room Thermostat. Optional Coal-Trol Digital thermostat is also available.