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.

Compare cooling efficiency ratings before buying a home heat pump. adventtr/iStock via Getty Images Plus Theresa Pistochini: This decades-old technology is similar to an air conditioner, but a home ...

Getting a heat pump may be seen as a huge task requiring new insulation and radiators, but not all homes will need such ...

Heat pumps have gone from niche technology to national talking point, but are they really worth the money? With conflicting ...