CATALYTIC COMBUSTION DEVICE

PROBLEM TO BE SOLVED: To provide a high reliable catalytic combustion device capable of maintaining stable catalytic combustion by spray-coating the inner surface of a vaporizing chamber as much as possible without worsening leakage of an unburnt content. SOLUTION: In the catalytic combustion device 5 provided with the vaporizing chamber 12 to vaporize liquid fuel and feed it, and a catalytic combustion panel 20 mounted in front of the vaporizing chamber 12 and effecting catalytic combustion of fuel gas, the inner surfaces 39a and 39b of an outer frame part 31 and a support part 32 connected together in an L-shape to hold the catalytic combustion panel 20 in front of the vaporizing chamber 12 is spray-coated in such a manner as to have a region not spray-coated at and around a corner 30k. This constitution prevents promotion of deformation as a result of the outer frame part 31 being formed in a bimetal state and deformation of an inner surface 32a of a support part 32 making contact with a gasket 50, resulting in prevention of leakage of unburnt gas.