› UKTH forums › đź“ş White & Brown Goods › Boilers Gas/Heat Pump › Moved: Reply To: House heat pump exchange units Very interesting, I may move this subject as this is of interest to myself, can I ask, given your location, what are your seasonal temperatures ranges and does the Alpha... › Reply To: Moved: Reply To: House heat pump exchange units Very interesting, I may move this subject as this is of interest to myself, can I ask, given your location, what are your seasonal temperatures ranges and does the Alpha…
Warm water whatever you adjust, upto 55°C or even more to 65° with heating up elements. I use to have only 50°C and turned off heater elements (they are for security too if pump fails in winter days) with a (have to lie but think) 400l warm water tank.
There are only 2x 4h mains brake a day for cheaper heating current (about half price). So enough warm water out of the tank for next 5 hours, it will be warmed in about an hour if going colder (below a set point), so no problem. With -20°C outside the pump will run about 8h a day, much reserve. Ground water got constant 13°C whole year which is a very good working point for the heat pump, the warmer the more efficient it can run. Thats why ground water pump got best performance factor, better than brine-water and air-water which is coldest (worst) when you need most heat (and energy).
Summer in Vienna can get very hot upto 40°C for weeks with 30-35 even at night. Then you love below 28 inside, and it is very cost effective, just let cold ground water go round the pipes. Sure its no air condition, but I dont like them and this is mostly for free consuming least energy to get hottest days bearable.
PS: Hard for me to translate to English- I hope readable and mostly understandable.
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