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jamespetts
@jamespetts
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Eminent Member
Joined: Nov 4, 2024
Last seen: Jan 3, 2026
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Topics: 3 / Replies: 28
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RE: New heat pump (Vaillant Arotherm + 7kW) performing better than installers expected?

I think that I may have found the lower heat curve limit: I had turned it down to 0.45 yesterday, but I have had to turn it back up to 0.5 again as th...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Shutting down heating when out for the day - data

So far, the house has been comfortably warm when I get home. The door to door journey is about an hour, although yesterday, I stopped to talk to some ...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Shutting down heating when out for the day - data

Friday and Saturday's data are probably contaminated with confounding factors as I had builders in leaving doors open. But Sunday's and to-day's are i...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Shutting down heating when out for the day - data

To-day's data: heating off between circa 1530 and 2230 outdoor temperature 10.7C, heat curve 0.50, 2.4kWh consumed.

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Shutting down heating when out for the day - data

Accidental multi post.

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Shutting down heating when out for the day - data

Accidental multi-post.

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Shutting down heating when out for the day - data

My purpose on creating this thread was simply to document my tests of the oft-made claim that leaving the heat pump running all day is ultimately more...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Shutting down heating when out for the day - data

That is what I am trying to compare - I am trying to get my heat curve right for "low and slow" heating when I am present (0.5 so far and still enough...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Shutting down heating when out for the day - data

I believe that my floor area (excluding the unheated conservatory and downstairs lavatory, and excluding the shed which has an independent heating sys...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Shutting down heating when out for the day - data

Interesting. It is still worth turning the heating off when I go out for the same reason that it would be worth turning a 100W bulb off when I go out....

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Shutting down heating when out for the day - data

Yes, 3.7kWh was the total space heating consumption yesterday according to the MyVaillant app. Is that low? Total electricity demand yesterday overa...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Shutting down heating when out for the day - data

Latest data: 6 November 2024; heating running all day; 3.7kWh heating demand; outdoor temperature average 10.5C; heat curve lowered from 5.5 to 5.0 du...

2 years ago
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Air Source Heat Pumps (ASHPs)
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