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Last seen: Sep 19, 2026
Just another thought - it might be worth thinking about the control strategy in relation to the backup heater. I think that the typical control strat...
When i was looking I encountered one installer who does this as standard. It's cheaper to buy a direct cylinder (no coil, just an immersion), a pump ...
It sounds like you are well organised. You want to aim for open loop operation on weather compensation only, no buffer, LLH or PHE between emitters...
Ok so that's 35MWh and 32MWh respectively, assuming 10kWh/l, indicative of 11-17kW assuming the boiler is 100% efficient (which it likely isn't) and t...
@guydeb It is going to be high loss. I have heard that the commonly assumed U values for stone walls is way to high, and the air changes is also o...
This has come up before; a close neighbour of mine did something similar and claimed the BUS grant, but of course that doesn't mean it is OK. I woul...
Agree, but you may have a hard time convincing them, as an overestimated survey is their ultimate protection. If you can get their calculations (and ...
This smooths things out a lot, basically its useless. Thats nowhere near an average 10kW It looks like you switch heating off at night...
I have a he 7kW Vaillant which is good. My comment would be there is, sofaik (based admitedly on what others say and the specs) nothing particularly ...
This particular example is one of the worst I have seen here. Uninsulated buried primaries!, uninsulated pipework around the cylinder, system separat...
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Degrees of Separation
Latest Posts
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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 , 10 hours ago
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RE: Starting Our Heat Pump Journey: 1962 build 3 bed detached house
@ian-s I wouldn't be too concerned about the design ...
By Rob of York , 10 hours 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 , 11 hours ago
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RE: Grant R290 DHW Cycle Interuption
It looks like some sort of short pre-run. The question...
By JamesPa , 12 hours 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 , 13 hours ago
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RE: Why are ASHP installs so expensive?
Posted by: @batpred There´s another aspect that coul...
By Rob of York , 18 hours ago
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RE: Say hello and introduce yourself
@gz00, welcome to the forums. There’s a huge amount of ...
By Mars , 1 day 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 , 1 day ago
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RE: Heat Pump deployment statistics: June 2026
@l8again Unfortunately the government is, I suspect,...
By JamesPa , 1 day ago
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My feed of random industrial auctions turned up this au...
By Prunus , 1 day ago
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Thank you @majordennisbloodnok – that means a lot, part...
By Mars , 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 , 3 days ago
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RE: Who's your electricity provider and what's your tariff?
@batpred When the raw material input has increased in c...
By Papahuhu , 4 days ago
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We kept ours and Heat Geek would have been in touch if ...
By Batpred , 4 days ago
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