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Larry
@larry
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Eminent Member
Joined: Oct 12, 2024
Last seen: Oct 22, 2024
Profile Activity
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...

1 year ago
Forum
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...

1 year ago
Forum
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...

1 year 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...

1 year 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...

1 year 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!

1 year 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!

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
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...

1 year 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...

1 year 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....

1 year ago
Forum
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...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
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...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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