Combustion furnace, in particular for domestic heating

摘要

A combustion furnace, in particular for domestic heating, is provided on the inside roof lining of the combustion chamber (3) with a horizontal duct (3) which essentially covers the inside roof lining itself, is with one end connected to an air suction opening (25) close to the bottom and carries off the heated air either on the front side or above the furnace. In a preferred embodiment, the duct consists of a series of mutually parallel pipes (13) which are at one end connected to a collecting duct (15), into which an intermediate gap (16) runs, which is formed by a vertical double wall which is provided at the lower end with the air suction opening (25). <IMAGE>