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cathodeRay
cathodeRay
@cathoderay
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Joined: Feb 28, 2022
Last seen: May 8, 2025
Topics: 17 / Replies: 2033
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RE: Is it KISS or constant – weather compensation vs. set flow temperature?

Personally I don't like these 'factor' curves eg what on earth does 0.3 mean? 0.3 of 1? ie range is 0-1? 0.3 of x, x being a numberless number meaning...

2 months ago
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RE: Setback savings - fact or fiction?

@jamespa - thanks as ever for your analysis. This is indeed interesting. Take the back of a fag packet assessment of the saving, 6/24 hours (off ...

2 months ago
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RE: Is it KISS or constant – weather compensation vs. set flow temperature?

Ah, that explains it! Been there, done that, it's horrible in every way. One major improvement I noticed going from mains electric (not storage) ...

2 months ago
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RE: Is it KISS or constant – weather compensation vs. set flow temperature?

@cliffhanger - thoughts on how to deal with your situation: I would still start with room stat set high and all TRVS etc open and then fine tune the w...

2 months ago
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RE: Is it KISS or constant – weather compensation vs. set flow temperature?

Keep it out in the open! Others will want to have a look and possibly comment. The heat loss report estimates the heat loss to be 7.42kW at -5.28°C ...

2 months ago
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RE: Setback savings - fact or fiction?

@jamespa - thank you for your ongoing heroic attempts to make sense of all this. I too had noticed this different behaviour. Here are the two per...

2 months ago
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RE: Setback savings - fact or fiction?

For completeness sake, and I may as well document it here as anywhere else, I have now done the other test I mentioned earlier for whether the two sam...

2 months ago
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RE: Baxi Air Source Heat Pump tips and tricks please

It may be be because the controller has been changed, and has gone to some albeit rather odd defaults. See if you can set them to what you had before....

2 months ago
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RE: Setback savings - fact or fiction?

And finally, the R version tidied up a bit and larger, so 95% confidence interval bands are more visible: The R code used (slightly different,...

2 months ago
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RE: Is it KISS or constant – weather compensation vs. set flow temperature?

Calculation based heat loss assessments are often particularly over the top for older buildings because the assumed U values for walls are just plain ...

2 months ago
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