Year-round, they can heat water with a desuperheater, a secondary heat exchanger, that transfers heat from the earth in the winter, and from your property in the summer time, into your domestic hot water tank.
You need to order at least 12 2 inch uniseals, 5 1 inch uniseals and 15 1/2 uniseals. If I have been you I would also order five three/four inch uniseals when you are at it. They come in handy for lots of items. You are not going to use them all, but in Israel at Kibbutz Lotan final January we destroyed a couple performing the installation and in New York a couple of weeks ago we found a broken 1 in the shipment. They are rubber. Ideal to have extras on hand.
Comparisons amongst GeoExchange Heat Pumps (GHP) and traditional air source units are convoluted because of the sharp reduce in efficiency of air source equipment as a function of outdoors air temperature. Manufacturers of air source equipment are rapid to post impressive EER and SEER numbers on their high efficiency” models, but a closer examination of the actual overall performance data shows that these lofty numbers do not correlate properly below realistic installed circumstances.
Acid rain types when sulfur dioxide and nitrogen oxide react with chemical substances like water, oxygen and carbon dioxide in the atmosphere to form sulfuric acid and nitric acid. Water containing these acidic compounds falls back to the earth as rain, harming plants and other immobile objects below. Although the acid from acid rain is weak, normally no a lot more acidic than vinegar, it can seriously alter the atmosphere, damaging plants and aquatic ecosystems.
You want to be comfy all year long. If you want to expand your household with a smaller addition, I recommend ductless mini-split heat pumps for cooling in applications where the primary heat is supplied by a different source — like radiant floor, finned-tube baseboard, radiant panel or hydro-air. That way I can size the cooling portion for excellent comfort and the heating portion of the heat pump can be utilized as a backup heat supply if the key heat source is down for upkeep.