Abstract: A wood burning stove with a catalytic combustor and combustor bypass structure to increase fuel-burning efficiency and safety by reducing creosote emission by the stove and to provide for safe stove operation even if the catalytic combustor becomes blocked, clogged or otherwise obstructed. The single and multiple bypass structures disclosed utilize bypasses located adjacent to the catalytic combustor or combustors to provide for efficient operation with relatively little smoke flow through the bypass during normal operation and with at least partial combustion of smoke which does bypass the combustor. A smoke relief door automatically actuated by opening the fuel loading door to prevent smoke spillage into the room is also disclosed together with alternative means for supplying secondary air to the stove's combustion chamber in the vicinity of the catalytic combustor.

Abstract: A radiant for use with a gas heater embodies a pair of upwardly converging front and rear walls formed of aluminum silicate. Connector members also formed of a fibrous aluminum silicate refractory board extend between the walls to retain their lower end portions in spaced relation to each other. Perforations are provided in the front wall for emitting radiant heat and an upper vent opening is provided in the rear wall. A convexly curved lower end portion is provided on the rear wall for imparting rotary motion to the burning gases as they move upwardly between the walls.

Abstract: A fuel burning heater has a lower combustion chamber with a door at the front thereof and an upper heating chamber with a discharge port for products of combustion at the rear thereof. A common wall between the heating chamber and a portion of the combustion chamber defines a bottom for the heating chamber and at least a portion of a top for the combustion chamber. A discharge passageway through the common wall conveys products of combustion into the heating chamber with means directing at least a portion of the products of combustion toward the front of the heating chamber. Draft regulators in the lower portion of the door introduce controlled amounts of combustion air for fast burning and other draft regulators in the upper portion of the door introduce controlled amounts of combustion air for slow burning.

Abstract: A fuel burning heater has a lower combustion chamber with a front door and an upper heating chamber with a discharge port at the rear thereof for products of combustion. A common wall between the combustion chamber and the heating chamber defines a top for the combustion chamber and a bottom for the heating chamber. A first discharge passageway through a forward portion of the common wall conveys products of combustion into the forward portion of the heating chamber. A second discharge passageway through a rear portion of the common wall conveys products of combustion into the rear portion of the heating chamber. A damper is mounted in the second discharge passageway for movement selectively toward an open position for faster burning and toward a closed position for slower burning. Lower and upper draft regulators are mounted in lower and upper portions, respectively, of the door for introducing controlled amounts of combustion air.