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JamesPa
@jamespa
Moderator
Illustrious Member
Joined: Apr 3, 2023
Last seen: Sep 20, 2025
Topics: 17 / Replies: 2881
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RE: Do setbacks save energy without compromising comfort?

"I get what you are saying but reckon the heatpump is restricting me" Yes, I think so. The case where a heat pump wont modulate down to the lev...

2 years ago
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RE: Do setbacks save energy without compromising comfort?

What this is much more likely to indicate is indicate is that, at your current flow temperature, you are pumping in more energy than you need if you o...

2 years ago
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RE: Do setbacks save energy without compromising comfort?

Noted and good and I apologise that I thought that you might have been implying that. I have when I talk about the effect of thermal mass. As I...

2 years ago
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RE: Do setbacks save energy without compromising comfort?

I am absolutely not taking sides here and personally believe that everyone is telling the truth of what they see. What I do observe is differences o...

2 years ago
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RE: Do setbacks save energy without compromising comfort?

Thats excellent and doubtless a true reflection of reality or thereabouts (I say thereabouts only because I dont know whether this years weather condi...

2 years ago
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RE: Do setbacks save energy without compromising comfort?

As i say above not necessarily in your house which appears to have a high thermal mass and an unexplained high standing load (and other as yet unexpla...

2 years ago
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RE: Do setbacks save energy without compromising comfort?

If you work out the 24 hour average IAT and do the simple math correctly you will indeed get a very crude estimate, one which is perhaps good enough f...

2 years ago
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RE: Do setbacks save energy without compromising comfort?

It looks like this forum has been the victim of dumbing down, a little way upthread you were prepared to accept an answer based on A level maths, now ...

2 years ago
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RE: Do setbacks save energy without compromising comfort?

My plot of IAT-OAT vs energy supplied to the emitters, the latter corrected for changes in energy stored in the fabric (ie thermal mass), would seem t...

2 years ago
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RE: Do setbacks save energy without compromising comfort?

My reading is this (others may disagree) There are currently no experimental results from which we can deduce any conclusions applicable generally, ...

2 years ago
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RE: Do setbacks save energy without compromising comfort?

@cathoderay Well they are interesting! The third period, when the heat pump was actually running, appears to show relatively little temperature ...

2 years ago
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RE: Do setbacks save energy without compromising comfort?

Thanks. So to check my understanding (please confirm if I have got it correct!): the modelled LWT is adjusted from its default value (set by an assum...

2 years ago
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