Your phone rings at 7:00 a.m. in January. The homeowner says their heat pump quit, and the house is freezing. When you pull up, there's ice everywhere on the outdoor unit — a solid block covering the ...

As we head into the colder months, HVACR technicians need to understand the fundamentals of defrost control board operation. While there are many types of defrost control boards on the market, they ...

Air source heat pumps (ASHPs) extract thermal energy from ambient air to provide heating in residential and commercial buildings. In cold or humid conditions, moisture in the air condenses and freezes ...

While installing an air source heat pump, much like any other type of heating system isn't a job for your DIY list, what can you expect from the process? It will of course vary, depending on if you're ...