가정용 온수보일러의 성능향상에 관한 실험적 연구

An experimental study was performed to improve a domestic hot water boiler with a coil type heat exchanger. By using Korean Standard B 8107, B 8021 and B 6205, the boiler efficiency for heating, bathing and combution are calculated. Finally, the efficiency of the boiler are compared with those of the commercial production. On the whole, the performance of the hot water generator is higher than that of the other generator.