COMBINED WATER AND GAS HEATER Russian patent published in 1997 - IPC

FIELD: heat power engineering. SUBSTANCE: heater has tank that consists of outer, inner and intermediate tanks, casing, means for heating fluid, system for supplying cold water and discharging air, branch pipes for supplying water to the intermediate tank and discharging fluid from it. The heating embers are mounted inside the outer tank and intermediate tank. The heating member mounted inside the intermediate tank can be mounted inside the inner tank as well. In the bottom portion of the casing is a heat insulating shield. The branch pipe for supplying water to the intermediate tank is composed. The bottom portion of it is detachable that allows connection of a pipe supplying water to the intermediate or inner tank. EFFECT: enhanced efficiency. 3 cl, 3 dwg