Gas Tankless Water Heater

Gas tankless water heater functions on the same principle of gas water heater but it does not possess a storage tank. It is also called as "on demand water heater" or "point of use water heater". Cold water flows into the heater when the hot water tap is turned on. A sensor present in the heater activates the gas burner that heats the heat exchanger when the water encircles the exchanger. Water boils till the required temperature that is set. There is a sealed outlet system that allows Combustion gases to exit safe.

Studies say that gas tankless water heater saves around 20% on your gas bill when compared to the conventional tank models. The tank model heater consumes more energy to keep the water in the tank hot where as the tankless heater heats the water only when you need. These tankless heaters are small in size and occupy less space. You can install them on the wall. The life expectancy is around twenty years which is longer than the life expectancy of the tank heaters. There is no risk of water damage and tank leakage in this model.

If you are planning to buy a new gas tankless water heater you need to find out different models available in the market. You can explore internet for the latest models and compare the price list of all the brands. Decide the size of the heater you need. They are rated in GPM which refers to gallons of hot water it can produce per minute. GPM requirements for various purposes are given below.

Gas Tankless Water Heater

• Approximately for a bathtub or for a shower you may need a 2.5 GPM heater.
• Bathroom and kitchen sinks needs 2.2 GPM.
• Washing machine needs 3.3 GPM and
• Dish washer needs a 1.3 GPM approximately.

Confirm with your installer weather the existing gas line is sufficient or not. Take the advantage of discounts or tax credits.

While installing gas tankless water heater, you should follow the safety measures. If the heater is installed in a garage it should be elevated minimum 18 inches above the floor to avoid explosion or fire due to leakage or spillage of lubricants in the garage. Earthquake safety measures also should be considered. In some countries like Australia tempering valves are kept on the outlet of the heaters. This tempering valve mixes required cold water to the hot water to maintain the out coming water temperature. This water is called tempered water.