Gas Vs Electric Hot Water Heater Efficiency

You ll find both gas and electric models.

Gas vs electric hot water heater efficiency.

Similarly electric heaters can have higher energy factor ratings than gas heaters. Electric water heaters particularly electric heat pump water heaters can have higher ef ratings than gas water heaters. And they have no combustible byproducts. A gas water heater uses the heat from burning a fuel usually natural gas to heat water while an electric water heater uses electric resistance coils.

Gas water heaters are less energy efficient than electric heaters but the cost of electricity itself makes the running costs of an electric heater higher. Standard gas water heaters have an ef of about 50 to 60. A gas or electric water heater s energy factor ef is a measurement that. Unlike electric heaters gas water heaters can be dangerous to operate in small spaces that allow gas to build up.

Electric water heaters tend to have at least 98 thermal efficiency many are 99 percent or more. The bigger the ef number the more efficient the appliance. Electric water heaters are not only efficient but also don t have any fuel that could leak or explode. Electric water heaters require less space.

A gas heater must vent the spent gas which also takes some of the heat with it. Most gas fired water heaters have an energy factor ef number set by the u s. In comparison gas heaters usually have between 80 and 85 percent. Department of energy to help consumers compare the efficiency of similar appliances.

On the other hand.