Heat Pump Running Costs

How long is it on, can take hours to go up a degree.

was on over night but its a bit odd, the stat said 20.5 say but my own temp monitor was saying 22, i just looked at it now on home assistant(stat has been at 21 since i left this morning)

maybe the stat is just in a bad spot!

lot of glass in that room too so may be solar gain today

@Cyrus your flow meters and the liquid in them looks very brown and rusty.... here is a picture of one my my flow meters, my system is realivley new at just over 2.5 years but somethings not right Id say with those pictures

No…. 😕 the UFH loop/system is self-contained and contain an anti corrosion liquid you can see the colour of mine is a blueish as you can see. When I get my heat pump serviced my dude actually checks the % of this stuff in the system. I also have iron & manganese and I have hard water from my borehole. I have a treatment system to try and sort this and I have this brown dirt in the filter as well. But once the UFH loop is filled then apart from maybe a quick boost to build back up the pressure (one or twice in the first year, hardly any time the second year)

No.1 job I think is to get this flushed and fill it back up with the good stuff.

Is it only the outdoor unit that needs replaced? The indoor cylinder and heat exchanger, is that good for longer?

Thats pretty poor, have had a Mitsubishi Ecodan for 7 years. all going well touch wood. Hasn't been service in over 2 years so need to get on that.

Which Shelly for heat pump?

I have a 200l tank and use about 2kWh per day on hot water not including heat. (heatpump)

Yep mine is trending down to now around 11kWh/day (7 day moving average)

220m2 A1 house (A2 without the PV)

What temperature do you set your thermostats at in your house? Ours are at between 22 and 23. I'm always too warm, and heat pump on amd off all day and night.

Yeah if only it was that simple ha. Herself likes it toasty. She'd have it higher if she could, I'd have it lower.

24c😯 !!! jaysus I woudl love to see his electricty bill... as mentioned above my house is a fairy well built house triple glazing all windows, 200mm cavity insulation, MHRV, etc etc airtightness of less than 2 and I know if I have any stat set at 24 degs my heating would be on all day long...I even notice a difference setting at 21 degs it woudl be on a lot more. The most I have any room is 20.5 deg and the bedrooms at 19.

22 degs I think is too high, sneak it down to 21.5 and after a week or two down to 21, early on what I got a lot from my missus was she was saying she didnt believe the what the room stat was telling her (it wasnt calibrated!!)...so I got a few zigbee temp sensors and now I can say look the room stat is saying its 21degs and the temp sensor is saying its 21 degs arguement over

(just noticed my living room sensor is gone off line)

Im sure there is a way to calibrate but I dont know or do it, I have the independant zigbee temp sensors and they are usaully within 0.5 deg of the room stat so that keeps me happy. My Heat pump service dude every year checks the settings of every stat as well so that another thing.

24 is mental and i keep telling him.His house is 600sq ft smaller then mine but his bills are bit higher. Yeah 21 would probably be fine and lower my bills alright but im running for set period and fixed flow so im happy enough with it at the moment. Its 22 in living areas from say 5pm onwards earlier if sunny outside.

hot water is ticking over with pretty high consumption during the summer averaging above 5kwh?

ya similar situation to mine, the hot water does its own thing. have yet to run out. 5 in the house, long showers baths. etc etc. but averaging 2-3kwh

Not a huge difference but just wondering