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JamesPa
JamesPa
@jamespa
Moderator
Illustrious Member
Joined: Apr 3, 2023
Last seen: Sep 23, 2026
Topics: 27 / Replies: 5421
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RE: Any Grant Aerona owners using their Low Loss Header immersion heater?

Is it a volumiser (2 ports) or a low loss header (4 ports). The latter can be a bit of a disaster if setup incorrectly, which is probably more likely ...

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

No offence intended, the comments were meant simply to reflect the facts that: 1. when developing a model for a class of system, its often a good id...

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

At this stage I will very happily settle for the same to within a factor of 2, given that they are from two completely independent approaches based on...

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

Thanks for the data health warning. I was struck by just how much difference adjusting for change in IAT made to the degree of correlation (have a lo...

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

The data should be capable of telling us the amount of energy contributed by other sources, it should appear as an intercept in the correlation curve,...

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

Thanks. I think your adjustment has the effect of moving the curve up or down, and mine the effect of changing the distribution. They are thus diffe...

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

Can you clarify whether this was composed after or before my post at 10.05. I have the impression before, but I could be wrong. Essentially my 10.05...

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

@cathoderay @derek-m I think I am making some progress untangling the data above provided by @cathoderay. The raw data showed a tolerable, but no...

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

@cathoderay Not an answer just some more analysis to ponder. Here is a table, taken directly from the minute by minute data, of heating energy (from...

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

Thats almost certainly a part of it. What I also suspect is that the previous 24hrs matters a lot, and so far as I can tell from the graphs the OAT w...

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

It would be interesting to answer this. Can you post the two graphs you are comparing and also the previous 24hrs on each case?

3 years ago
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RE: Rule change re ASHP

Definitely worth a read but not earth shattering. It hints at some minor tweaks to pd rights, but no revolution. Interestingly it repeatedly states ...

3 years ago
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