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

Heat pumps have annually outsold gas furnaces for several years now, and with the recent introduction of more high-efficiency, cold-climate, air-source heat pumps, that trend is likely to continue.

If you want to heat or cool your home, a heat pump seems like the logical solution. Here's everything you need to know to decide whether getting one makes sense for your home. Andrew King is an ...

Outside a 100-year-old house on the edge of the Peak District in northern England, a heat pump’s fan blades are swiftly spinning. They’re drawing outdoor air over coils of refrigerant, harvesting ...

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 ...