Last seen: Sep 12, 2025
Calculation based heat loss assessments are often particularly over the top for older buildings because the assumed U values for walls are just plain ...
Now we are all posting at the same time! One thing to add - I agree with @jamespa, there is no such thing as a ridiculously low curve, only a curve th...
@cliffhanger @editor - I would be inclined to ask how and why is the overshoot happening. I'd start by looking at the estimated heat loss, and how the...
Here's the same plot, less the R squared values, done quick and dirty in python, with the one done in R on the right: They look the same to me a...
And here in case any one wants it is the code I used in R: #read the data, already has grouping variable setback, 1 = with setback, 0 = no setback ...
We certainly are, and that's why I am here too. But that doesn't mean we shouldn't have have robust discussions. Indeed one of the remarkable things a...
@sunandair - you may have confidence in the findings from your creative trials but I lack confidence in mine and I have to say that I remain somewhat ...
@cathyem1 - thanks for the update. Let us know how it goes on Monday!
Latest Posts
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Incidentally this is the sort of thig you can do if you...
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RE: Humming sound on new install.
Roof trusses and dry lined ceilings are a massive sound...
By AllyFish , 2 hours ago
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RE: Midea ASHP – how to set weather compensation
@jamespa is right, typically they are far from linear, ...
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Funny story Graham, when I started looking to ...
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RE: Buffers, hot water and cooling
@dgclimatecontrol thanks, that's helpful.
By JamesPa , 15 hours ago
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RE: Failing heat pump system - seeking thoughts on a rebuild
I realise im overdue an update on my situation. first...
By Cleardene-ashp , 17 hours ago
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RE: Replacing Worcester oil boiler with an ASHP
@toodles thanks. I was told by the engineer that this h...
By JulianC , 17 hours ago
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RE: Heat Pump Servicing & Maintenance – Good Value or Rip-Off?
Yes Octopus only have the £9 a month service plan for t...
By NJT , 19 hours ago
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RE: Who’s Caved and Switched the Heating On Already?
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RE: What crazy nonsense are inverter limits and why are they imposed?
A week later, I'm finally picking up this comment... ...
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RE: COP is not the only measure of efficiency
We keep all our TRVs fully open using the whole house a...
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RE: Havenwise App Help & Forum Support – Get the Most from Your Heat Pump
I am pleased to say at 4pm today we have added another ...
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RE: Renewables & Heat Pumps in the News
To unpack this a little.... 1) how many of us in this...
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RE: Vaillant aroTherm Plus 10kW thoughts?
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RE: Mitsubishi Ecodan 11kw Defrosting Issue.
@morgan this can just be done by your sepecilist when t...
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RE: Anyone still weathering it out with Agile?
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RE: 300 Liter Tank - Do I have to heat it all?
The size of DHW tank affects the anti-legionella cycle....
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RE: Heat Pump SCOPs – The Truth Might Not Be What You Think
@scalextrix Name plate capacity
By HCas , 3 days ago
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RE: Solar Thermal DHW and ASHP
I was originally contemplating a solar thermal installa...
By jamespetts , 3 days ago
