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Last seen: Aug 13, 2026
@jamespa, thank you both @iaack so far I haven’t calculated this latent heat of fusion. Just the raising of the 180L of water temperature from 25C to ...
I don’t think you can compare the two systems. Ours is entirely radiator system while yours appears to be under floor heating possibly with volumiser ...
Excellent graphics and description Rob…. But to my mind there are amounts of energy that need replacing in this defrost event which aren’t portrayed i...
@cathoderay yes there is an indication of quite a bit of recovery energy being used. Do you have any way of quantifying numerically the energy being u...
That’s an interesting stat. I’m thinking that the 0.1 KWh might be the energy used during the flow reversal process….? I’m also thinking that the real...
@toodles yes it was a bit excessive getting 2 defrosts in one hour. I think it must have been the changing climate while it was still cold. We normall...
When we operate a setback we are reliant on the insulation in our house to ensure we only lose about 1.5C to 2C room temperature this also means the i...
Hi @toodles…. Comfort is, of course an essential need of any heating schedule. We operate a setback which aims to give us 19.5C by 9am and 21 usually ...
@cathoderay interesting house…. Before I retired listed buildings was my thing. i wish you every success.
@cathoderay regarding Catchup I agree… this is the opinion I’ve had since early last year. Heat loss will obviously be a different scenario for differ...
Thanks for your comments @old_scientist. It sounds like you’ve managed to get the room temperatures you want albeit by manually adjusting the flow tem...
Here is an update of the setback we operate on our system. We have created a simple schedule which copes with different night time outside temperatu...
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Degrees of Separation
Latest Posts
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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 , 1 hour 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 , 1 day 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 , 1 day 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 , 1 day ago
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RE: Grant R290 DHW Cycle Interuption
It looks like some sort of short pre-run. The question...
By JamesPa , 1 day 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 , 1 day 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 , 1 day ago
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RE: Say hello and introduce yourself
@gz00, welcome to the forums. There’s a huge amount of ...
By Mars , 2 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 , 2 days ago
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RE: Heat Pump deployment statistics: June 2026
@l8again Unfortunately the government is, I suspect,...
By JamesPa , 2 days ago
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My feed of random industrial auctions turned up this au...
By Prunus , 2 days 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 , 5 days ago
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