Posted by gbs on December 07, 2012 at 19:17:51 from (71.51.248.4):
In Reply to: O/T, Heat pumps posted by murray2 on December 07, 2012 at 17:24:22:
don't know about the ground source type but the air to air with the back up electric its good down to about 25 degrees without the heat strips ,sales gimmick was getting heat out of cold air??????? no such thing because the unit is a reverse flow air conditioner when the outside air temperature matches the refrigerant temperature in the outside coils it starts to freeze, the temperature can't raise in the inside coils because the refrigerant can't be warmed outside with air colder than the refrigerant ,no temperature differential no heat,i know they have cycle timers to elevate this problem but it still doesn't work unless you have a backup system ie electric heat strips or gas ,me personally from the headaches of having a heat pump i would purchase 2 separate units one for heat one for cooling
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Today's Featured Article - Old Time Threshing - by Anthony West. A lovely harvest evening late September 1947, I was a school boy, like all school boys I loved harvest time. The golden corn ripens well and early, the stoking, stacking,.... the drawing in with the tractors and trailers and a few buck rakes thrown in, and possibly a heavy horse. It would be a great day for the collies and the terrier dogs, rats and mice would be at the bottom of the stacks so the dogs, would have a busy time hunting and killing, all the corn was gathered and ricked in what we c
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