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 ...

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 ...

UK-based researchers have developed a novel method to estimate the amount of defrost cycles a heat pump will experience in the winter and how much energy it would require to implement the cycles. The ...