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.

Heat pumps operate by moving heat from lower temperature areas to higher temperature areas. They typically take advantage of an electrically driven compressor and a closed vapor compression cycle.

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 ...

Adsorption refrigeration systems and heat pumps are emerging as compelling alternatives to conventional vapour compression technologies, offering enhanced energy efficiency and environmental benefits.

Researchers have developed a new kind of heating and cooling method that they have named the ionocaloric refrigeration cycle. They hope the technique will someday help phase out refrigerants that ...

Heat pumps are having a moment in the spotlight—or as close to one as a heating and cooling appliance can get. Whether it’s ducted heat pumps, mini-splits, or even geothermal systems, there’s a buzz ...

A heat pump heats and cools your home, functioning like a combined furnace and central air conditioner. Because they absorb and move heat from the air, heat pumps are exceptionally energy-efficient ...

Jon covers artificial intelligence. He previously led CNET's home energy and utilities category, with a focus on energy-saving advice, thermostats, and heating and cooling. Jon has more than a decade ...

Most heat pumps fall into the broad categories of ducted or ductless, but there are also a number of subcategories you should be aware of when choosing a heat pump for your home. Sam Becker ...

Alan Pears provides advice and consults to the Australian Alliance for Energy Productivity and Energy Efficiency Council as well as governments and community groups such as Renew on issues related to ...

Air source heat pumps are made up of an outside unit and an inside unit. They can also be hooked up to ducts, like a furnace. Mitsubishi Electric Trane HVAC US (METUS) By Francesca Paris Heat pumps ...