Keystoker A-120 Coal Furnace

Keystoker A-120 Furnace



The Keystoker A-120 Add-On Furnace is made from heavy gauge American steel and has an insulated metal jacket. It burns anthracite rice and buckwheat coal. And since this coal furnace uses clean burning anthracite coal as fuel, you do not need to worry about enlarging your carbon footprint to fulfill your heating needs. All surfaces that are in contact with hot gases are wiped with air from convection blower to exhaust maximum amount of heat from furnace.

-Right Hand Models
-Left Hand Models


  • Automatic Coal Burning.
  • Produces up to 120,000 BTU.
  • Produces very little pollution.
  • Furnace is heated with our patented flat grate stoker.
  • Comes complete with necessary controls and thermostat.
  • Optional water coil available.


BTU’s 120,000
Flue Exit Rear
Flue Size 8″
Rear Flue Height 11″
Height 54″
Depth 49″
Width 27 ½”
Weight 440
Hopper Capacity 140 lbs
Blower CFM 1,500 CFM
Glass Door No
Side Clearance 10″
Rear Clearance 20″
Plenum Opening 20 1/4″ x 30 1/4″


Owners Manual