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SUNandAIR
SUNandAIR
@sunandair
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Honorable Member
Joined: Dec 30, 2022
Last seen: Mar 21, 2026
Profile Activity
Topics: 5 / Replies: 564
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RE: Setback savings - fact or fiction?

@cathoderay I kind of guessed you might come back with the data validation route. The problem with that route is that it is only as good as the under...

5 months ago
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Air Source Heat Pumps (ASHPs)
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RE: Setback savings - fact or fiction?

It looks like thereā€™s some good discussions on applying insulation which canā€™t be a bad thing @majordennisbloodnok and @cathoderay. Regarding out top...

5 months ago
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Air Source Heat Pumps (ASHPs)
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RE: Setback savings - fact or fiction?

Hi @majordennisbloodnok, I donā€™t think I have a different view than yours here. Im very passionate about listed buildings. Iā€™m just pointing out that ...

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Setback savings - fact or fiction?

@cathoderay yes I agree, listed buildings may present challenges depending on what is a particular listed feature. Importantly, of course, itā€™s also t...

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Setback savings - fact or fiction?

@old_scientist thatā€™s quite an interesting story and I agree there are some serious issues when the insulation is installed incorrectly. And possib...

5 months ago
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Air Source Heat Pumps (ASHPs)
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RE: Setback savings - fact or fiction?

In my opinion insulated walls are not a ā€œnice to haveā€ option, rather it is necessity. Insulation of older housing stock must be seen as an absolute...

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Setback savings - fact or fiction?

Here is that Samsung link posted by @old_scientist

5 months ago
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Air Source Heat Pumps (ASHPs)
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RE: Setback savings - fact or fiction?

Thanks @cathoderay, I did read it earlier when it was posted. I wouldnā€™t pretend to have understood most of it but there were a few good bits of infor...

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Setback savings - fact or fiction?

Hi Mike. I think you make a valid point. I would assume the post defrost algorithms are part of a pre determined reheat to provide some additional he...

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Setback savings - fact or fiction?

Nice re-focus but somehow Im not sure the defrost ā€˜setbackā€™ saves energy it does after all put negative energy into the building for at least one who...

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Setback savings - fact or fiction?

@robs Your Heat Pump setup is quite exceptional. I can clearly see your heat pump is delivering the heat you require at a flow temperature of 29c when...

5 months ago
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Air Source Heat Pumps (ASHPs)
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RE: Setback savings - fact or fiction?

@jamespa, thank you both @iaack so far I havenā€™t calculated this latent heat of fusion. Just the raising of the 180L of water temperature from 25C to ...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
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