Tankless water heaters can help you save up to 40% on your energy bill. It is an efficient appliance that uses a heat exchanger to heat water only on demand. When a gas tankless water heater senses the demand for water flow, such as turning on a faucet or a shower, the unit begins heating water as it passes through the heat exchanger. Because there is no need for a storage tank, you get an endless supply of hot water. When water flow ceases, the tankless water heater shuts down, therefore using less energy.
