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JamesPa
@jamespa
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Illustrious Member
Joined: Apr 3, 2023
Last seen: Sep 17, 2025
Profile Activity
Topics: 17 / Replies: 2865
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RE: Do setbacks save energy without compromising comfort?

I think most, if not all, of this is spot on. Both the saving and the comfort are functions of the control strategy during recovery, and most heat pu...

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

Thanks for the vote of confidence, Im not sure its justified. I think the challenge here is that we are comparing a model in one condition with with...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: MCS consultation on amendments to PD rules

Are they heating on warm and sunny days, or is this for DHW only, or are they cooling (in which case did the planning consent cover cooling). If its ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: MCS consultation on amendments to PD rules

I guess the authorities will say that it's covered by nuisance law which they will saw is robust. If you haven't already done so I would suggest you...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: MCS consultation on amendments to PD rules

I don't defend mcs, I have gone on record as saying that it should be abolished or at a minimum stripped of its privileged position in planning law. ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: MCS consultation on amendments to PD rules

There is absolutely no challenge possible to the planning consent that's been correctly implemented so don't waste time. Its indeed very difficult to...

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

Heat pump efficiency declines quite markedly with low OAT, thats just the thermodynamics at work. The datasheets set it all out if you are interested...

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

Of course Im aware of that, I come across it every day. I presume that as the average is 18%, its rather more than 18% of the smaller values, and rat...

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

I can't see a way to get efficiency from the data. If you had flow rate and power in it could be calculated, but not what you have presented. ...

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

18% is a lot particularly if it's actually a fixed ish load thus more significant at low power outputs. Do you happen to know what happens if you ru...

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

There are several noise meter apps and one in particular for recording nuisance, which many local authorities will recommend you use. Can't remember ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: MCS consultation on amendments to PD rules

If your local authority approved it in a planning application (is that what you are saying) then it does not have to conform to mcs planning standards...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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