Heat transfer fluid e.g. water, central heating and sanitary hot water producing system, has steel blade welded at furnace, where blade is constituted by bands in which heat transfer fluid e.g. water, is circulated constantly

摘要

The system has a steel blade welded at a furnace (1), where the blade is constituted by bands (3) that are realized on a right face (B), rear face, left face and a top face (D) of the furnace. Heat transfer fluid e.g. water, in the band is circulated constantly. A heat outlet (4) is provided at a left end of the blade. A rock wool insulation is maintained against the furnace by an exterior jacket.