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Last seen: Sep 21, 2026
@jamespa and @rob-of-york — thank you both very much I think I have now got it well enough to retain it! The light bulb paragraph for me (I am better ...
This was how I understood things, and is why you need to add PO to the primary source contribution (which I will call PP, Power Primary, as opposed to...
That is a very good point which I hadn't taken into account. I don't mind being warm, but it is wasted energy. Another point is that in winter, the DH...
I agree, and I think it is good stuff to be posting, as it provides others who have sufficient data to do their own analyses. It's possible it is...
I'm still not sure! Consider this chart with an added line which represent to total heat loss: My reasoning: the added upper dot...
Thanks. No, I forgot to do that. But don't we add it when using IAT - OAT rather than degree days? The plotted line shows what the heat pump supplies,...
This thread being the more generic one is I think the best place for this post. I have now plotted my data from 1st Jan 2026 to the end of the heati...
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Degrees of Separation
Latest Posts
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RE: Why are ASHP installs so expensive?
And then you look at US electricity prices and weep.
By bornagain , 17 minutes ago
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RE: Starting Our Heat Pump Journey: 1962 build 3 bed detached house
I upgraded mine but only because it was vented. Had ...
By JamesPa , 3 hours ago
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Depends on what controls the pump! Thats the whole poi...
By JamesPa , 5 hours ago
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The positive reviews keep coming in for Britain's Heat ...
By Mars , 19 hours ago
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RE: Next steps on my ASHP journey: Radiators and Pipework
I have one of these fitted which also allows you to reg...
By Old_Scientist , 23 hours ago
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RE: Recommendations in Ely (Cambs) area for Full setup checks on Nibe HP setup for House.
If they can't don't give up. Heat pumps are, in reali...
By JamesPa , 2 days ago
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RE: Missing flow temperature in Heat Geek proposal
Yes that's what would happen by turning down the lsv to...
By JamesPa , 2 days ago
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RE: Grant R290 DHW Cycle Interuption
It looks like some sort of short pre-run. The question...
By JamesPa , 2 days ago
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RE: Cascade System or larger single unit
@renewables345 I would say if it a new build it’s no mo...
By Aventus Eco , 2 days ago
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RE: Say hello and introduce yourself
@gz00, welcome to the forums. There’s a huge amount of ...
By Mars , 3 days ago
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RE: Home energy storage & battery register
1 fox ess lv5200 batteries, plus 2 more waiting to be i...
By Jimcub , 3 days ago
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RE: Heat Pump deployment statistics: June 2026
@l8again Unfortunately the government is, I suspect,...
By JamesPa , 3 days ago
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My feed of random industrial auctions turned up this au...
By Prunus , 3 days ago
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We’ve just passed 20 million forum views! 🎉
It's official. The Renewable Heating Hub forums have of...
By Mars , 4 days ago
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