I just received this facebook tip from my friends at Hobbs Heating and Air Conditioning in Chipley, Florida. They installed my heat pump several years ago, but I never realized this information about freezing temperatures. I did some google searching and the information that I found says pretty much the same thing. With temps expected in the mid 20's in the morning, you can bet that I am going to follow this advice!!
Everyone Take Note and Stay WARM!!!!!!
Tonight is going to be another cold one, make sure and set your heat-pump systems on emergency heat before going to sleep. This will keep your system from running in defrost most of the night. If you don't know what the defrost cycle is read on! Once the the outdoor units coil drops below 32 degrees, the unit automatically goes into defrost sending the system into cool mode. Most units will also shut off the outdoor fan during this as well. If your unit is equipped with emergency heat strips, they will also be energize at this point, so now you are running your elements while in the cooling mode which is burning roughly 3.3 kw/hr more than emergency heat all while cooling the house back down. This happens an awful lot once the temperatures drop as low as they will be in the panhandle tonight.
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