Several feet underneath your home, the temperature of the ground is relatively constant. Decades-old technology is undergoing a major resurgence — and it could save you $1,500 a year on energy bills ...

An international research team has reviewed emerging solid-state and gas-cycle heat pumps capable of reaching temperatures of up to 1,600 K, assessing their challenges, applications, scalability, and ...

These are the best whole-house heat pumps from Consumer Reports' tests. These heat pumps are more efficient and can save you money.

State helped prime the boom, training hundreds of installers to help encourage the shift to clean heating and cooling ...

The Boston Housing Authority is piloting a new type of window-mounted heat pump that's relatively inexpensive and easy to install.

A common refrain is that they’re only effective in mild climates. We put that idea to the test. Credit...Photo illustration by The New York Times; Shutterstock Supported by By Sofia Quaglia Heat pumps ...