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JamesPa
@jamespa
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Illustrious Member
Joined: Apr 3, 2023
Last seen: Sep 19, 2025
Profile Activity
Topics: 17 / Replies: 2876
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RE: Do setbacks save energy without compromising comfort?

Thats inevitable particularly if the coil is fairly small. At this point delta T between flow and DHW temp is small so heat transfer is small. I do ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Do setbacks save energy without compromising comfort?

Absolutely so in principle. Whether there is sufficient incentive for manufacturers to develop sophisticated but easy to use controls of this kind on...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Do setbacks save energy without compromising comfort?

Its fairly easy to do, Ive done it on one radiator as a trial using off the shelf components only except for a couple of pieces of wood which I cut to...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Do setbacks save energy without compromising comfort?

Fancoils are simply fan assisted radiators. The actual radiator bit is usually constructed a bit differently, you can add a bunch of computer fans to...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Do setbacks save energy without compromising comfort?

@cathoderay, @derek-m I wonder if its worth turning the question round and asking instead, what are the circumstances where setback will use more e...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Do setbacks save energy without compromising comfort?

They both have their place but as you say need to used carefully. It's human nature to present things in a way that grabs attention and/or supports p...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Do setbacks save energy without compromising comfort?

As a percentage of the total consumption this is correct. Tha absolute saving for the same setback is the same. Again you are looking at per...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Do setbacks save energy without compromising comfort?

Fair enough, we currently have 2 patients in the trial. One of the patients has suspected breathing difficulties (intake in a bit of a well) and susp...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Do setbacks save energy without compromising comfort?

For me this discussion risks going the wrong way again. I think that we know that for one human being (heat pump system) giving a drug (setback) app...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Air source heat pumps and noise

At the most affected assessment point on the neighbours property. Thats 22dB lower than the PD rules permit and leads to a predicted interior noise l...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Air source heat pumps and noise

Interesting and useful thanks. I do think its important to be as certain as possible if the video is to be used as 'evidence', and apologise I didn'...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Air source heat pumps and noise

Interesting and potentially very useful videos. It would be good to know (roughly) the OAT at which these are recorded and/or the output power at the...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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