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Larry
@larry
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Eminent Member
Joined: Oct 12, 2024
Last seen: Oct 22, 2024
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Topics: 1 / Replies: 12
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RE: ÀSHP heat loss - how close to perfect can we get?

This comes down to the emissivity of the surface. Enamelled steel (radiators) is close to 1 ie: a perfect black body heat emitter. Chrome towel rail...

9 months ago
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Air Source Heat Pumps (ASHPs)
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RE: ÀSHP heat loss - how close to perfect can we get?

I agree with all this. I do think an approved method to practically integrate the results of a blower test would give the best bang for buck. Ther...

9 months ago
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Air Source Heat Pumps (ASHPs)
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RE: ÀSHP heat loss - how close to perfect can we get?

So, reviewing all that has been discussed above, what do we think should be the most basic steps forward? Not looking to revolutionise MCS in one sw...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: ÀSHP heat loss - how close to perfect can we get?

There is a company that specialise in an overnight test on this basis. I don't actually know if they've experience of feeding this into the official m...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: ÀSHP heat loss - how close to perfect can we get?

So, we all seem to agree that we need better models and empirical data. Should the first step then be for all prospective ASHP owners to set their c...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: ÀSHP heat loss - how close to perfect can we get?

Very much so.... some light for the long winter evenings ahead!

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ÀSHP heat loss - how close to perfect can we get?

Very much so.... some light for the long winter evenings ahead!

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: ÀSHP heat loss - how close to perfect can we get?

No doubt both will be out. If MCS could give specific guidance on the application of blower tests then we could all get a lot closer. Building fab...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: ÀSHP heat loss - how close to perfect can we get?

Studied Mech.Eng and used to fit heat pumps about 15 years ago. Now I do surveys and sales for an installation company. Always trying to learn more an...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: ÀSHP heat loss - how close to perfect can we get?

This is the solid walls one....

9 months ago
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Air Source Heat Pumps (ASHPs)
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RE: ÀSHP heat loss - how close to perfect can we get?

Hi @cathoderay There's lots of good empirical studies out there. Solid wall real-world heat losses by Historic England is a good one. Ventilation r...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: ÀSHP heat loss - how close to perfect can we get?

Thanks @editor I watched that video yesterday - Excellent. I've been looking into the blower ACH50 / 20 method according to the SAP guidance. I’v...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
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