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Last seen: Sep 17, 2026
Ah, now it makes more sense. If it's sitting on the grille it's measuring air temp not rad temp. They need to be properly strapped to the radiator i...
That's a great one for the Uxbridge English dictionary (I'm Sorry I Haven't a Clue - Radio 4)
Are they properly in contact with the metal? You could check them with iced water and boiling water or tuck them under the insulation of the flow fr...
At 27 (DT of 10 relative to room) your rad output is roughly 20% of the output at 50 (dt 30 relative to room), say 600W. The rads most of the time ar...
OK Ive read this again and it just isnt making sense If I read this correctly you are apparently saying that that the house tem...
OK @papahuhu that makes things clearer. I dont know what algorithm Homely uses (@toodles may be able to help here - if @toodles you do look at this p...
A single design temp of 35 or less really would be the way to go. If it were my newbuild I would be insisting on it unless I had concrete proof (not ...
One school of thought says put almost nothing in and instead treat only to VDI2035 which is a German standard. So far as I can see there is a lot to ...
Im not sure what your thought process is here. Are you suggesting running with a max FT of 40 rather than the max of (say) 35 that the UFH is likely ...
The nominal will be the flow rate for rad dt5 at full output. Ideally you should be looking to achieve this but.. your 16kW heat pump is likely well ...
@adam That all sounds very sensible and I agree with your analysis. Like you I turn on the immersion on the very coldest days, because I run low n...
No chance! Largely, hence my suggestion to do some experimenting with the Homely set temp set to 30C, thus taking that element of control out of ...
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Latest Posts
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RE: Heat Pump deployment statistics: June 2026
To my eyes, sat behind all of this is a basic policy ma...
By Temperature_Gradient , 10 hours ago
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Thank you @majordennisbloodnok – that means a lot, part...
By Mars , 14 hours 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 , 14 hours ago
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RE: Missing flow temperature in Heat Geek proposal
That calculation is reasonable, output is proportional ...
By JamesPa , 17 hours ago
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RE: Recommendations in Ely (Cambs) area for Full setup checks on Nibe HP setup for House.
Have you looked at the Nibe website? They list their ap...
By Lizzie , 18 hours ago
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RE: Why are ASHP installs so expensive?
A not unreasonable position and it wouldn’t be mandator...
By AndrewJ , 18 hours 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 , 2 days ago
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We kept ours and Heat Geek would have been in touch if ...
By Batpred , 2 days ago
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RE: Starting Our Heat Pump Journey: 1962 build 3 bed detached house
@ian-s I would encourage you to have a conversation ...
By Rob of York , 3 days ago
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RE: Is it the house or the equipment?
Thanks @jamespa The last hard to fix draughts in the...
By springswood , 3 days ago
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RE: Vaillant Arotherm – Using Heating
@l8again Mine is typically using 11w including the i...
By Batpred , 3 days ago
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RE: Next steps on my ASHP journey: Radiators and Pipework
If you have a flowmeter and two temperature probes, the...
By bobflux , 3 days ago
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RE: Siting of the external sensor on a heatpump
@jamespa Absolutely. Even if the same mistake was mad...
By Batpred , 4 days ago
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