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JamesPa
JamesPa
@jamespa
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Joined: Apr 3, 2023
Last seen: Oct 27, 2026
Profile Activity
Topics: 28 / Replies: 5533
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RE: Do setbacks save energy without compromising comfort?

@derek-m may correct me but I don't believe the model does cycling as such. My understanding is that it recognises the occurrence in the 'duty cycle'...

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

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

Im not sure why this was directed at me especially, but since you ask here are my thoughts: For the purpose of the second half of the question I thi...

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

@cathoderay Yes understood, in general terms. But given that you cant measure the 'actual observed energy in value for the hour' multiple times in t...

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

As you say much tighter. This allows you, as you say, to get an average expected value. Your actuals will have the same scatter so you will need to...

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

Good to hear. By robust I don't mean low noise (I think that's impossible without a lab), as I say and as you doubtless know there are techniques fo...

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

I realise that, but the object here is to be in a position to average sufficient data points to reduce the level of noise below the signal. Its possi...

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

There is clearly a relationship but the spread of +/-20% ignoring the outliers is of the same order as that I measured on my gas boiler (which was act...

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

If (1) is the case I potentially agree. Its not the case for my fossil fuel boiler (there is a correlation but it's very noisy indeed) so I don't see ...

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

I think this modelling merits a bit more discussion as the results are very plausible. Unless someone can convince me otherwise the first of the two...

3 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Noise/ Planning Expert

@derek-m I did wonder that. However the capital costs are much higher and they may not have a suitable place to dig. I briefly looked at gshp in my ...

3 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Noise/ Planning Expert

Thanks for this, very interesting. The thing about retrospective planning consent is that the decision criteria are exactly the same as they would...

3 years ago
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Air Source Heat Pumps (ASHPs)
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