Gas Vs Electric Hot Water Heater Efficiency

All this can offset the higher cost of electric power to some extent.

Gas vs electric hot water heater efficiency.

The bigger the ef number the more efficient the appliance. Electric water heaters particularly electric heat pump water heaters can have higher ef ratings than gas water heaters. This is due to the way that the heaters operate. A gas or electric water heater s energy factor ef is a measurement that.

Standard gas water heaters have an ef of about 50 to 60. 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. Department of energy to help consumers compare the efficiency of similar appliances.

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. Energy efficiency while gas hot water heaters cost less to run due to the lower cost of natural gas electric heaters are actually more efficient. A gas heater must vent the spent gas which also takes some of the heat with it. In comparison gas heaters usually have between 80 and 85 percent.

You ll find both gas and electric models. Similarly electric heaters can have higher energy factor ratings than gas heaters. 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. Electric water heaters tend to have at least 98 thermal efficiency many are 99 percent or more.

Most gas fired water heaters have an energy factor ef number set by the u s.