Combustion system
Combustion with leakage resistant exhaust valve
Combustor assembly for a fuel-burning room heater
Common venting of water heater and induced draft furnace
Compact gas-fired infrared radiator of closed design
Construction for preventing oil leakage in oil burner
Convection oven with hard-wood smoke generator
Convergent flow stove
Convertible dual direct-vented fireplace
Cylindrical catalytic heater