Heater with burner head for heating piping systems and which

摘要

A stable flame is formed at a distance from the burner head as far as the combustion chamber wall. The burner head (14) is connected with a conduit system (20), through which flows a heat-dissipating coolant. The outer wall area of the burner head is so structured on its outflow apertures (30) that between flame roots at the burner head and the mouth edges of the outflow apertures defined contact surfaces exit, which extend over the vertex areas of the flame roots and into their side areas.The outflow apertures are formed between individual thin-wall guide bodies, at a distance from one another. A part of the guide bodies (26), pref. each second or third guide body, when viewed in the outflow direction of the fuel-air mixt., is formed longer than the adjacent guide bodies (28)