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To increase the water pressure of the water heater, just open the butterfly valve so that both the water pressure and the gas pressure increase. . . This was a topic that one of the professors had raised on Insta. . We have decided to correct these wrong contents and provide you with the correct training from now on. . The butterfly valve of the water heater is located exactly in the gas inlet and has nothing to do with the increase in water pressure. . . If the water pressure in the house is low and cannot fully open the gas path, opening and closing the butterfly valve has no effect on the flame of your water heater. . . In order to become a professional in repair training, you can participate in the Mobist repair course from the following link: . #water heater #water heater service #water heater repair #butan water heater #water heater repair training