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Last seen: Sep 18, 2026
@bontwoody Given your experience from your previous house and given op has a 8kW heat pump for possibly a 2.5- 3.5kW house which takes 18hrs to co...
Thats really helpful. The plot produced is odd and to me smacks of flow temp reduction triggered by a control not by defrost. The temperature soon r...
Good. No need to apologise, despite the fact that the principles of heating are extremely simple, the wide variety of houses and the constantly varyi...
All noted. I can see whats happening but the drop in FT appears to occur just before the start of the plot and the onset of defrost, so is not obvio...
The problem is that you need to modulate down to <1kW because thats where the temperature sits most of the time. You wont find a heat pump or a bo...
Whatever you are experiencing in terms of house temperature is not, IMHO, going away 'simply' by getting another heat pump, and is likely to get even ...
I am far from convinced this will fix the problem because there isnt much out there < about 4kW, so not that much difference. I think there is a ...
Yes, but the lowest power heat pump you will get is ~5kW, so its still going to be cycling. A boiler will be much worse. Thus getting to grips with ...
ok that makes more sense, in which case simplicity of UI is going to be key if you do change! I can recommend Vaillant for this because I have one, b...
Welcome to the forum. Some things you are saying dont make sense together One of the reasons you want to replace it is because its oversized, yet t...
The idea (and at least one similar product) has been around for a while, I even considered it for one awkward room when I did my upgrade a year ago. ...
Of that I have no doubt and apologies for any offence!
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Latest Posts
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RE: Why are ASHP installs so expensive?
Thanks. I am personally on the page of measuring house...
By JamesPa , 53 minutes ago
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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 , 15 hours ago
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Thank you @majordennisbloodnok – that means a lot, part...
By Mars , 19 hours ago
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We’ve just passed 20 million forum views! 🎉
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By Mars , 19 hours ago
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RE: Missing flow temperature in Heat Geek proposal
That calculation is reasonable, output is proportional ...
By JamesPa , 21 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 , 22 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 , 3 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...
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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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