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.