Gas Tankless Water Heater Information

Tankless water heaters, also known as demand-type or instantaneous water heaters, provide hot water only as it is needed. They don't heat the water until it is needed and they don't have the energy loss or cost associated with storage tank water heaters. Because they are not heating water until it is needed they can save you money. On this page you will find basic information about tankless water heaters including how they work, if a tankless water heater might be right for your home, and how to choose the right tankless water heater for your home.



Click on the video below to start playing and see how a Gas Tankless Water Heater works.


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Gas Tankless Gas Water Heater Safety

The following are general safety and installation requirements for a tankless gas water heater.
Tankless heaters potentially can explode and cause significant damage, injury, or death if certain safety devices are not installed. A safety device called a pressure relief valve, is normally attached to the hot water side of tankless heaters to dump water if the temperature or pressure becomes too high.

If a gas tankless water heater is installed in a garage or basement, many plumbing codes require that it be elevated at least 18 in (46 cm) above the floor to reduce the potential for fire or explosion due to spillage or leakage of combustible

Gas fired tankless water heaters should not be located in sleeping areas.
Tankless heater controls are generally set to 120 F or less to help prevent accidental scalding.

Recovery Rate
Gas fired tankless water heaters do not produce hot water until a tap is turned on and hot water is called for.

Gas tankless water heaters share the following basic components:
Cold Water Inlet Pipe
Flow Sensors
Burner
Heat Exchanger
Computer or Circuit Board
Hot Water Outlet Pipe

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