By contrast, a heat pump water heater uses electricity to move heat from the air to heat the water. DR Richardson, co-founder of Elephant Energy, an electrification company that installs heat pump ...

How to make the switch. If your current water heater is reaching the end of its predicted life span, or if you’re planning to build a new home, it makes sense to investigate heat pump technology.

A 120-volt model may be a good alternative if you’re looking to switch from a gas water heater—as long as you’re aware that the lower-voltage model may take longer to heat a tank full of water.

Three years ago, Ted Treadwell turned his water heater into a battery. His home in Santa Rosa, California, had relied on a ...

New household water heaters and heating systems powered by natural gas would be phased out in the Los Angeles basin under two controversial rules that air quality regulators will vote on Friday.

Sure, you can save money by using less hot water, but an even smarter move is upgrading to a more efficient way of heating it. Enter the heat pump water heater.