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cathodeRay
cathodeRay
@cathoderay
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Joined: Feb 28, 2022
Last seen: Aug 15, 2025
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Topics: 17 / Replies: 2075
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RE: Do setbacks save energy without compromising comfort?

Thanks for such a detailed description in words. It really does help my understanding of what you are doing.

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

It is certainly interesting that the numbers should be so similar. Looking at the last week's use, to 0700 yesterday (Monday), it is still in the same...

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

Yes, I came across Raspberry Pi solutions, but it means adding a whole new layer of complexity which I think I could manage technically (can solder wi...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Defrost Cycles - How Common Are They?

@toodles - yes, that makes sense, though I can't see the LWT magenta line poking out from the bottom of the fourth defrost in your latest chart. It ma...

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

@scrchngwsl - thanks, though I will need to put my thinking cap on to get my head round that lot! I have thought about how to do this a few time...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Defrost Cycles - How Common Are They?

I think they are there. I have marked them with blue crosses: The key mark of a defrost is the LWT (flow temp) falls below the RWT (return tem...

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

Thanks for the kind thoughts. At least it is sunny as well as less humid, and the cold won't last forever.

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

The dates and times were in the post with the charts. The 1.18 factor was a guaverage, a portmanteau word. As I have pointed out before, I have lim...

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

Agreed, I went through the Midea manuals and could not find anything. But I am not sure it matters that much. We have the compressor kWh in which you ...

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

@derek-m - you have made three requests for data all within three hours, one at 8 pm, another just one hour later at 9:01 pm and then this rather petu...

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

Yes, to keep you on your toes 😉 Seriously, though, usually there is a reason, this time it is because the daily meter readings were taken at 0700.

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

I've had another look at the data and found the only series where I read the external meter of a daily basis. It is a short run, for the period 0700 o...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Page 68 / 175
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