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batalto
@batalto
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Joined: Apr 9, 2021
Last seen: Jul 4, 2025
Profile Activity
Topics: 24 / Replies: 1067
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Reply
RE: Kev-M's ASHP Performance

@derek-m my system always had weather compensation. For me the big issue was actually radiator balance as before that point I needed the high heat to ...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 14Kw Mitsubishi Ecodan ASHP

@derek-m as a note you can use the function "FORECAST" in excel to recreate this chart. All you need are the two set points and a desired value e.g. 5...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: ASHP in Hampshire

@derek-m It doesnt matter what I set the thermostat to. Originally I had it on 22, but moved it to 21.5 to prevent a boiling house if the experiment w...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: ASHP in Hampshire

@kev-m actually I used LESS power. You can see from below the details of the days. And of course as soon as I said it, I was wrong. My heating go...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Kev-M's ASHP Performance

@derek-m if its like my system its topping up the water temperature and then just running the pump to push the warm water around. If you go into the o...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP in Hampshire

Some initial feedback on how my weather compensation is going. The main point would be that when it was 13 degrees ambient for 2 days last week my COP...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP in Hampshire

@derek-m house continues to hold at 21°. Thermostat is set at 21.5 and it just can't make it - so I'd say that's a win for weather compensation. I jus...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP in Hampshire

@derek-m I think I'm getting somewhere. I've had my thermostat set on 22 all morning, and the house is holding at 21 - it doesn't seem to be gaining a...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP in Hampshire

@derek-m I am quite lucky that I can view every day via the app, however its not great. I can see a previous day only as a summary and not actual. b...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP in Hampshire

@derek-m I think I need to work on the curves and flow, as it was 19 degrees downstairs this morning, and it should be 21. Its warmed up now, but I ne...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP in Hampshire

I've also just discovered my minimum flow temperature is 25°. I can't go lower than that

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP in Hampshire

Question, the HP seems to be cycling off before the thermostat says the room is heated up. Is this normal? Perhaps the return water is warm enough tha...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
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