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Last seen: Oct 23, 2025
@bontwoody the non standard part of my house is that it is an old stone building with 600mm thick walls some of which are external but due to two exte...
@ashp-bobba I think the starting point was soaking up the patsy who qualified for the £10K grant in 2020 and then added more....I have learned to figh...
The advantage being that the unit is in the sun for most of the year (morning sun) so any chance of a bit of extra heat in the air might offset a bit ...
Thanks for the video. The important sentence was that external pipework in the insulating tube loses 7watts of heat per linear metre. Making the loss ...
I will have to guess that it will be 45C in the depths of winter but it is more complicated than just a new install.I intend to heat part of my house,...
I have many spreadsheets full of heat loss data, all diffferent, all dependent on the guess work of experts, none of which are trustworthy or beleavea...
@derek-m I've been trying to think of a solution to this. Apparently the inner wall and outer stone is not suitable for cavity insulation. I was wonde...
@sunandair "Quite how they manage to provide a quote (not an estimate) on very scanty details collected online is quite beyond me. Maybe it is so t...
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Degrees of Separation
Latest Posts
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New Vaillant Arotherm controls link to existing thermostats ; wired vs wireless
I am feeling baffled and worried:We are having a an Aro...
By GutoFfowc , 41 minutes ago
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RE: Do I add Air Con or MVHR to existing A2W ASHP?
@rob-of-york Thank you, I’m thinking along these same l...
By Toodles , 4 hours ago
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@Mars Good questions! The downstairs unit did the maj...
By Rob of York , 4 hours ago
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RE: Questions about A2A for heating as well as cooling
@donciccio I would suggest that you take a "fabric-fi...
By Rob of York , 4 hours ago
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RE: How Accurate Is My DIY Heat Loss Calculation?
Any idea how efficient your gas boiler is? Is it a 50 y...
By Old_Scientist , 9 hours ago
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RE: Volumisers in Heat Pump Systems: Does Placement Matter?
@dave, I think @jamespa has probably identified the mos...
By Mars , 21 hours ago
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RE: Plug and play solar. Thoughts?
My thought is simple. Bring it on and bring on plug in...
By JamesPa , 1 day ago
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RE: Heat Geek mini store vs pump size
Yes I agree, that’s why Heat Geek have most likely sele...
By Tomtheheatingengineer , 2 days ago
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RE: Who's your electricity provider and what's your tariff?
@chandykris Swings and Roundabouts, you win some…. ...
By Toodles , 2 days ago
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@tomtheheatingengineer, thank you, and welcome to the f...
By Mars , 2 days ago
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
@majordennisbloodnok @tomtheheatingengineer For my ...
By JamesPa , 2 days ago
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RE: Is the "divide by 2900" rule still valid?
Really flow rate is a pipework limitation not a water p...
By JamesPa , 3 days ago
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RE: The good, the bad and the not that great – my heat pump installation
@burtis, I’ve followed this thread pretty much from the...
By Mars , 6 days ago



