Setting and adjusting the hot water heater thermostat is all about the gas valve, which lets gas in through the bottom burner. Learn about using a thermistor to help control the temperature of a hot water heater with help from a master plumber and heating specialist in this free video on hot water heater thermostats. Expert: Chris Spannagel Bio: Chris Spannagel has been a master plumber for 17 years and is licensed in Arizona. Filmmaker: Chuck Tyler

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Filed under: Tankless Gas Water Heater

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