GAS HEATING MODULE Russian patent published in 1998 - IPC

FIELD: decentralized heat supply and hot water supply systems of residential, industrial and public buildings. SUBSTANCE: gas heating module has metal reservoir for water to be heated, gas and air feed system, automated gas burner unit, expansion tank and make-up tank, heat generating member, smoke stack and auxiliary devices. Heat generating member is made of series-connected rectangular direct and return passages connected by U-shaped swivel knee. Direct and return passages have common attachment flange. Return passage has cylindrical tenons installed over entire length across smoke gas flow. Lower generating line of return passage has 5-7 degrees slope towards smoke stack to let out condensate forming both in heat generating member and in special heat exchanger installed on smoke stack behind heat generating member. Vertical separating metal flat sheets are installed in reservoir for water to be heated. These sheets form heated water raising and lowering channels along heat generating member formed between metal sheet and outer walls of reservoir. EFFECT: reduced mass of device, improved repairability under optimum heat exchange conditions. 2 dwg