HOT WATER BOILER USING OIL AND WOOD AS FUEL

摘要

PURPOSE: A hot water boiler using oil and wood as fuel is provided to save energy and to reduce the manufacturing cost and installation cost of the hot water boiler by automatically converting the operation modes of the hot water boiler from a wood combustion mode to an oil combustion mode. CONSTITUTION: An outer lid(4) is provided at an upper portion of a body(2) of a hot water boiler(1). An inner lid(6) is accommodated in the body(2) below the outer lid(4), so as to prevent heat generated in the body(2) from being discharged out of the body(2). A waste gas pipe(10) is connected to an upper portion of the body(2). The body(2) includes an inner wall and an outer wall. A space is formed between the inner wall and the outer wall so as to collect hot water therein. Hot water is supplied from a hot water outlet formed at an outer wall of a boiler tank(20). When hot water is cooled after heating a room, it is recirculated into the boiler tank(20) through a returning port by a circulation pump.