Steve,
Thanks for the information. My heat pump is a Trane and is a few years old but it has the electronic circuit packs and such in it. I have a contract with the company that installed it and they come out twice a year and do a full service, plus if I have a problem I get serviced before others with no contracts. I have always washed the sides of it down and tried to spray the water through the slits into the coils inside and the service man told me I was doing good as they are never dirty. I didn't know about the 20 degree thing. On a 117 degree day mine will bring the house down to around 77 degrees, so I guess it is working ok. I have one of those point and shoot digital thermometers that reads about 4 degrees to high and I use it to check the air from the riegisters on the hottest and most humid days and it stays about the same. Maybe a degree or two variation at most. I didn't know about setting a sprinkler on top. Will one of the little ones that have the two arms that whirl around do it or do I need a different type? The shadething I knew about but was just trying to figure out how to do it easy. I think I will just put up a couple of the fence posts and then string the tarp between them as they will block the sun from it and I can keep them about 10 to 12 feet from the unit. Also won't have to mow in that area maybe.
Thanks,
Ron
