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Derek M
@derek-m
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Illustrious Member
Joined: Mar 4, 2021
Last seen: Sep 19, 2024
Profile Activity
Topics: 7 / Replies: 4403
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Reply
RE: Do setbacks save energy without compromising comfort?

@jamespa Sorry, Freudian slip, it should have been labelled Wh. The data, including Energy In Reduction and Energy Out Reduction, was just extract...

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

@cathoderay There is indeed a degree of complexity within the spreadsheet, but I think that by now most forum members will have come to the conclusi...

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

You're welcome. Please feel free to question anything that you do not fully understand.

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

Please find attached the underlying spreadsheet for you to criticise.

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

No. If there were no external factors the prediction indicates that the IAT would stabilise at 19.31C, falling to 17.32C by the end of each setback pe...

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

@jamespa I can now provide some figures that may be useful in understanding what may be occurring within a hypothetical home during an overnight set...

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

@kev-m Thanks Kev, no problem.

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

@jamespa Hi James, I have some thoughts concerning the data but I would prefer not to comment at the moment, since if I am not 110% correct, anyth...

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

I have requested as much data as possible to be able to test the accuracy of the modeling tool, which I think will be the most productive way to proce...

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

You appear to be correct that employing some form of setback will produce better energy savings in some buildings rather than others, which is one of ...

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

If you would care to provide some data from your system covering particular periods I can run it through the model to see how the results match. Dat...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Is the Grant controller a thermostat?

Try lowering 2103.

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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