The highly efficient devices are the darlings of the environmental movement. Here’s why. By Hilary Howard Heat pumps, which both warm and cool buildings and are powered by electricity, have been ...

A heat pump doesn't generate heat; it transfers it from one place to another. It's an appliance with a bright future in an ...

With global warming becoming an urgent issue, heating our homes efficiently -- and sustainably -- has taken center stage. As winters become more unpredictable (and unexpectedly harsh), finding ...

What's the difference between warm air and cool air? In fact, what does “temperature” even mean? It's stranger than you think. At a basic level, if you increase the temperature of air, you increase ...

Heat pumps are electric appliances that can both heat and cool your home. Scientists see them as a climate solution because heat pumps reduce planet-heating emissions. They cut pollution from burning ...

Heat pumps are being sold to consumers as a way of cutting carbon emissions from homes - but are they suitable for older or larger homes? A heat pump is an electric-powered system that uses heat from ...

Federal incentives for home energy improvements are running out at the end of the year, so it’s decision time for anyone who has been thinking about a heat pump. The right decision can depend on where ...

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 ...