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Last seen: Sep 10, 2026
@grahamh - I've not been able to find anything in the manual yet, but no rush, need to see if there is a problem at low ambients before fixing it. Hav...
@grahamh - its a very impressive spreadsheet, how you managed to keep on top of all those lookup formulas is beyond me. I did wonder if gh was you, bu...
Apologies in advance - this is a very long post... @derek-m - you are of course right, as I feared you would be. The rad sizing was based on the hig...
Hi @derek-m I agree the heat loss needs reducing as it is high, and there is scope for lowering it, even within the listed building constraints eg d...
Hi @derek-m I was also hoping you would see my post and have something to say, as I have seen some of your other posts, and the impressive work you ...
I was hoping you might see my post, and, having read many of your posts, dared to hope you might reply, as you have written much interesting stuff, he...
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Degrees of Separation
Latest Posts
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RE: Two heating zones to one zone
@sarahstrachan Hello & apologies for the delay.....
By Profzarkov , 28 minutes ago
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RE: Vaillant Aurotherm - Heater Wire Position
Ah, good point. I need to check if this was installed i...
By Batpred , 3 hours ago
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RE: Adventures in heat loss calculations
Posted by: @jamespa At this point its probably worth...
By Rob of York , 5 hours ago
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@batpred thanks for getting a copy. Appreciate the supp...
By Mars , 14 hours ago
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RE: Tell us about your Solar (PV) setup
We have a 6.56kW solar PV system (16x 410W panels) inst...
By Rob of York , 19 hours ago
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RE: Where heat loss surveys seem to go against practical reality
@cathoderay @jamespa I've managed to get some nice re...
By Rob of York , 2 days ago
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RE: 7kW EV Charger Options Advice
Doh, not sure that I was thinking straight there, less ...
By Rusty , 2 days ago
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RE: Problems with sizing a replacement for a Viessmann Vitocal 200-S
Iām really liking reading through this thread and the r...
By Judith , 2 days ago
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Thank you @trebor12345
By rgabor , 2 days ago
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Panasonic Free Multi Z and Etherea Internal units.
My prospective installers have suggested the Panasonic ...
By Toodles , 3 days ago
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RE: Next steps on my ASHP journey: Radiators and Pipework
Great. You just need to find a way of cranking up your...
By JamesPa , 3 days ago
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RE: Heat Pumps Without Grants: Would You Have Installed One & Will You Now?
We had two heat pumps installed without Govt funding. H...
By Rob of York , 3 days ago
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My Adapt is finally installed and running! Almost a yea...
By tomasmcguinness , 3 days ago
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