A split system heat pump's defrost sensor is used to detect ice buildup on the heat pump's outdoor coil. When ice builds up on the coil, it reduces the heat pump's ability to transfer heat, which can ...

First introduced in the 1950s, heat pump installations have increased in North America, in both residential and commercial projects. In fact, the U.S. Climate Alliance, a coalition of 25 states, ...

Compare a ductless mini split air conditioner to traditional central HVAC systems, including the pros and cons of mini split HVAC units.

Q: I am one of a growing number of Americans with a new mini-split heat pump. I have no idea how to maintain it or use it efficiently. I’ve talked with many other owners and we are all largely in the ...