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cathodeRay
cathodeRay
@cathoderay
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Illustrious Member
Joined: Feb 28, 2022
Last seen: Sep 8, 2025
Profile Activity
Topics: 17 / Replies: 2122
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RE: Do setbacks save energy without compromising comfort?

Possibly, but I am not sure I have the space needed, plus very very disruptive, and very very expensive (plus no grant at the time?). My situation i...

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

I said it might be interesting, but won't be pretty, and here it is, the last 24 hours' data: Ouch...

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

I absolutely agree. It's like having an internal combustion engine that throttles itself when you put your foot down - madness! The heat pump becomes ...

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

I think this is very germane. My heat pump, and I am sure mine is not alone, is operating in a micro-climate of its own making, and sets off on a down...

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

Thanks, and good to be on friendly terms again. The heat pump is on an east facing wall, and although it more than meets the minimum distances betw...

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

It was more design accident that design intent. Originally I was going to get a 16kW model, but a whole series of events led to a rush on Midea heat p...

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

Indeed. The apparent cycling seen at 4 degrees and below isn't modulating cycling, it's defrost cycles, and by doing them, the heat pump shoots itself...

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

I have just thought of a register that I know has a negative number: the left hand end of the WCC OAT is set to -4 degrees C. When I read it without a...

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

I think you have hit the nail on the head. Here is a read request to address 107 (OAT) in debug mode which also shows the actual response received: ...

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

I'm pretty sure it is my data, I posted it here on the forum not so long ago. The real world cycling varies a bit, but is typically around twice ...

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

Here is the actual Set LWT vs OAT (ambient temperature) for my heat pump for all available dates (late March 2023 to date, when running, always in WC ...

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

@jamespa - I'm planning to alternate setback plus recovery boost, ie the auto-adapt script, with periods of standard 24 hour running, building up roug...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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