关键词: 燃气热水器, 增压泵, 噪音, 降噪

Abstract: Because of the complexity of the residents' living condition in our country, many areas, especially in rural or urban old residential areas, there will be pressure on the low side, to the normal gas water heater can't start, hampering the promotion and application of gas water heater. Or the water heater can start, but the water is too small to affect the user's comfort level. So adding a booster pump on the gas water heater will be a good solution to this problem. Many water heaters are eager to try. But increasing the pressure pump causes noise. This paper mainly deals with the noise reduction of the whole machine due to increased pressure pump by means of different noise reduction. By using the solution of the situation of using gas water heater, this paper combined with the actual test results contrast analysis, it is concluded that the scheme for improving the existing water heater burning gas brings the problems such as noise to expand by increasing booster pump to improve has significant and far-reaching significance

Key words: The gas water heater, Booster pump, Noise, Noise reduction