If defrost isn’t working, something in the chain is broken. This step-by-step approach shows you exactly where to look and what to test.

A split system heat pump's defrost sensor is used to detect ice buildup on the heat pump's outdoor coil. When ice builds up on the coil, it reduces the heat pump's ability to transfer heat, which can ...

Quilt's heat pumps are built containing a suite of sensors, which have delivered mountains of data that allow its engineers ...

U.S. startup Quilt has introduced a new three-zone ductless heat pump for residential use, offering independent temperature control across three areas with a single outdoor unit. The system uses R32 ...

These water heaters are far more energy-efficient than conventional options. We put 10 models to the test. By Yasmeen Khan Heat pump water heaters have been around for decades, but it’s only recently ...

The basic principle of physics that explains heat pump technology has been in use for centuries. The ancient Chinese used the geothermal power of natural hot springs to heat their homes. However, ...

Heat pumps electrify your heating and cooling to be more efficient. New technology could solve one of their lingering problems. Jon covers artificial intelligence. He previously led CNET's home energy ...

New research from Germany’s Fraunhofer Institute for Solar Energy Systems (Fraunhofer ISE) has shown that combining rooftop PV systems with battery storage and heat pumps can improve heat pump ...

Rinnai Corp, a Japanese manufacturer of home heating appliances, has unveiled a new hot water heat pump for residential and small commercial applications. Called HydraHeat, the new heat pump is ...