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Last seen: Sep 17, 2026
I think you are right. However in this case, in the UK, the money argument and the environmental argument are in perfect alignment in the medium/long...
People apparently, at least according to the polls, say it is if asked, but dont act that way. Im increasingly coming to the conclusion that energy...
Thats true, but having tried (and succeeded) in constructing a DiY version with computer fans, I can still appreciate the good design of the speedcomf...
Didn't with my boiler, too much temperature variation with both time and place. However I do grant that, had it featured weather compensation and l...
Depends on OAT. Mine cycles at OAT>10 and of course has periodic defrosts at OAT<4. Steady operation typically occurs between 4 and 10. This ...
Well of course I agree. There is a small saving in energy that you need to deliver to the house as a result of setback, which reduces the average hou...
OK but the lower average IAT is precisely why some saving might be expected. So the answer to the question you pose d is in theory yes.
@rhiannon Welcome to the forums and feel free to ask any questions. The best way to run almost any heat pump is 24x7 with any thermostat set to say ...
Er dont you expect the mean 24hr temp to be lower on setback days. Thats sort of the point. The mean of interest is surely the mean IAT during the h...
Too expensive IMHO for a whole house, at this point do the job properly and fit fancoils (also expensive!) or larger radiators. Best IMHO used in 'ma...
@mars I think you say somewhere in the video that fans dont increase rad output. I think they do. By blowing more air over the fins/panels the heat ...
Sorry I dont know the answer to that as I dont have a Mitsubishi myself. Perhaps @sheriff-fatman knows. I imagine somewhere in the installer section...
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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 , 11 hours ago
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Thank you @majordennisbloodnok – that means a lot, part...
By Mars , 15 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 , 15 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 , 19 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 , 19 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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