How Do Gas Tankless
Water Heaters Work?
When installed, a gas tankless water heater is attached directly to the water line. When you open a hot water tap, the burner in your gas tankless water heater activates. As water flows through the heat exchanger, it absorbs the heat and quickly reaches the preset temperature. Due to this direct heat exchange, gas tankless water heaters provide long-lasting, on-demand hot water. When the water tap is turned off, the unit shuts down to conserve energy.