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JamesPa
@jamespa
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Illustrious Member
Joined: Apr 3, 2023
Last seen: Sep 13, 2025
Profile Activity
Topics: 17 / Replies: 2837
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Reply
RE: Samsung / Worldheat buffer mixing

This seems like a classic case of somebody who didn't know what they were doing installing a buffer with complete mixing, which is almost certainly wh...

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

Perhaps I should have said that many boilers can do WC but, to the best of my understanding, few systems in the UK are set up to take advantage of the...

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

Many gas boilers do or can support WC. However the way we do dhw means that you may have to jump hoops to implement it. A friend of mine has employ...

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

Yup pretty much. My boiler does actually condense so its just possible that the efficiency exceeds 100%. Hence choosing the 7kW Vaillant which does...

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

So we can look at the scatter on some more experimental data, here is a plot for my gas fired system. It shows average daily power (ie daily gas cons...

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

A bit of a moot point as this is now into hand waving territory, but I had in mind +/-10%. Thinking at the next level of detail, if I had a determin...

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

All agreed except possibly the last sentence. I don't think its as simple as a constant lag because the fabric isnt monolithic. However certainly I ...

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

Its a very good question and one I pose above. As I say above it does depend on the actual circumstance and what design decisions may be triggered/de...

11 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: MCS 2.0 - Changes in January 2025

The elevator reached the level at which I had to get out, so I missed my opportunity to impress the CEO.

11 months ago
Forum
Government Schemes, Regulations, Planning & Organisations
Reply
RE: ÀSHP heat loss - how close to perfect can we get?

OK so I have been giving some thought to a possible gold standard test that can be performed on a house outside a controlled environment. It co...

11 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: MCS 2.0 - Changes in January 2025

Scrap them entirely would be my vote. Let those in the industry that deliver for their customers rise naturally, and those that rely on MCS to cover ...

11 months ago
Forum
Government Schemes, Regulations, Planning & Organisations
Reply
RE: MCS 2.0 - Changes in January 2025

Sorry I got to 1min 14 seconds and gave up. Disorganised, self indulgent, amateur cr*p up to that point, nothing to encourage me to listen to another...

11 months ago
Forum
Government Schemes, Regulations, Planning & Organisations
Page 148 / 239
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