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cathodeRay
cathodeRay
@cathoderay
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Illustrious Member
Joined: Feb 28, 2022
Last seen: Sep 11, 2025
Profile Activity
Topics: 17 / Replies: 2129
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Reply
RE: Do setbacks save energy without compromising comfort?

This sort of abrasive remark does you no credit. There is no argument about whether the laws of physics apply, I accept them just as much as you do. N...

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

@derek-m - what you said was ie 4.44 drop over 8 hours is the same as 1.48 over 24 hours, which makes sense and is, according to you, legit (you ...

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

I think you'll find the dumbing down comes not from my perfectly reasonable adjustment of the maths level for a simpler problem, but rather from the w...

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

There's no shortage of predictions of what the effect of a one degree change in the thermostat setting is, though few are as precise as to give an ans...

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

I have been doing a rapid literature review of the energy saving benefits or otherwise of setbacks, which with hindsight I should have done right at t...

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

You know full well, because I have said so many times, Freedom won't talk to end users. My installer, who of course I did ask, wasn't sure why it was ...

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

Freedom, who made the installation of a PHE (or LLH) a warranty requirement at the time my heat pump was installed, have never given a reason that I k...

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

Here are the PHE temps I recorded yesterday evening. They were taken using a IR thermometer in contact with black masking tape on the relevant pipe ab...

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

Sorry, I didn't word the question well, I meant the whole package, data and methods. But it doesn't (stay at very nearly the same temp, it drops ...

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

I know this may appear to be an unnecessary question, but I think it is important: which part of my tool methodology is unreconciled with the laws of ...

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

Whether this is the case or not is in the data. Generally it is within a degree or so of the desired IAT. It has periods of minor over and undershoot ...

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

There does seem to be a lot of hindsight present in this thread these days. When I wrote the thread title, I had no idea how the thread and analysis w...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Page 79 / 179
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