"The homeowners we've worked with in Colorado and Massachusetts have typically been able to save between $200 to $600 per year by switching to a hybrid heat pump water heater," Richardson said.

EV research site Recurrent reported that heat pumps can improve drivable range in below freezing temperatures by about 8 to ...

You need hot and cold water ... hose to vent hot moist air out of the house. But a relatively new technology is changing that. Instead of using a heater, these new dryers use a heat pump, and ...