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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 its basically a real world heat loss calculation / EPC - I could work our heat loss per average ambient by keeping a log

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

@derek-m trying to understand what 11kw means. If the house is 70m2 it seems a lot. I used 17kw yesterday to achieve the same results, but my house is...

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

@kev-m whats the size of your house?

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

@kev-m yes that's the whole house. I do have a little CT clamp meter on the HP, so I can see what its drawing. But its not recorded, I just look in as...

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

@kev-m It'll be a mix of hot water (for the showers), my wife's hair dryer, washing machine going on etc. This measures power in 5 min intervals, so i...

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

@derek-m there is a bit of cycling on the system due to the super mild weather (ambient was 13 overnight). However its very wet today, so interesting ...

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

Ran through the night with a COP of 4.2 - Lost some heat downstairs though, the temperature dropped to 20. So I've adjusted my curve 1 degree upwards;...

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

@jeff I think we'll end up with a system based on weather curves from heat loss calcs. I dont see why its not possible given we know the size of heat ...

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

room temperature hit 21.5 again today, so trimmed the weather comp at the bottom end a little. Its not exactly sunny, so solar gain should be negligib...

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

Checked the filter today and it was pretty much totally clean - so I think the gunk is now cleaned out. The system is basically silent now as well, wh...

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

@rv3 is your weather compensation turned on? That would be step 1

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

@derek-m If you want to go the DIY route, I would suggest/p> I am personally considering this, but now I have found my app does power and heat deliv...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
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