Last seen: Sep 19, 2025
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...
@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 ...
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) ...
@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...
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 ...
@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...
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...
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....
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,...
Calculation based heat loss assessments are often particularly over the top for older buildings because the assumed U values for walls are just plain ...
Latest Posts
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RE: Testing new controls/monitoring for Midea Clone ASHP
PS another useful observation from the last chart I pos...
By cathodeRay , 12 minutes ago
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RE: Boxt Heat Pump Installation Experience
Welcome to the forums. Was there any formal in-person...
By Mars , 14 minutes ago
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RE: Say hello and introduce yourself
@transparent Morning. Just put a lengthy post on the AS...
By sbm74 , 30 minutes ago
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RE: Big Changes Coming to Our Heat Pump System
@old_scientist 3. Some pipe work is ...
By GrahamF , 31 minutes ago
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Preparing for 2nd winter in new build house.
Firstly, apologies for what is likely to be a long post...
By sbm74 , 33 minutes ago
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RE: Help me keep the faith with my air source heat pump installation
@jamespa if I remember the insulation has a notch cut i...
By AdamK , 9 hours ago
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RE: MCS certificate SCOP vs real-world performance
That may be contributing to lower than expected SCOP. ...
By JamesPa , 11 hours ago
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RE: Mitsu PAR-WT60R Wireless Controller - options
How it does it's job is something of a mystery although...
By Abernyte , 18 hours ago
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RE: Powerwall 3 or Myenergi or something else?
Yes I was thinking of outdoor, IP65 batteries with buil...
By Temperature_Gradient , 22 hours ago
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@jamespa Thanks. Yeah any adjustments Ive made at pr...
By cliffhanger , 1 day ago
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RE: How to choose Towel Rails for an ASHP
@rob-nezard yes absolutely. Here is the link and a pho...
By GrahamF , 3 days ago
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@mixergy Thanks for the update, I would appreciate some...
By bontwoody , 3 days ago
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RE: Is Your Broadband Router the Weak Link in Your High-Tech Home?
Unfortunately I'm not that well connected 😂 ...
By Scalextrix , 3 days ago
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RE: A Customer's Lessons Learnt from a Heat Pump Installation in a Large House
It is interesting to see what our new Grant Aerona 290 ...
By GrahamF , 3 days ago
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RE: Midea ASHP – how to set weather compensation
I noticed that too and thought the same thing, but then...
By cathodeRay , 4 days ago
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RE: Ya can’t win! It is S*d’s Law!
@old_scientist If IOF is still running next late spring...
By Toodles , 4 days ago
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RE: Electricity price predictions
Those of you on Agile will do well tomorrow; there are ...
By Toodles , 4 days ago
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RE: Who’s Caved and Switched the Heating On Already?
We've been running our Ecodan system, installed in June...
By Sheriff Fatman , 4 days ago
