Last seen: Nov 21, 2025
@oswiu - I hadn't joined up the dots, and read your post to mean - I think I have now got it - it is as if you had a power cut. Bottom line was, for w...
Good point. Add-ons are the marketeers dreams come true.
Very true, but I am not thinking of huge output, just a resetting of the output to match 'as if' it was a bit colder outside. For example, this mornin...
@oswiu - very interested to hear your account of what actually happens. Am I right in thinking that once the anti freeze valves have decided to do the...
What I am trying to get at is this is what we normally call a feedback system, and they have existed for millions of years, eg biological systems. As ...
And you will own nothing, and you will be happy, to quote from another forum. I have to agree with @derek-m, in that even the most sophisticated heati...
Another general observation while I am at it: you need to think of a heat pump as a Steady Eddy that runs low and slow. It is a tortoise, not a hare. ...
"Installing larger rads..." Absolutely, that is why I have tried to highlight the pitfalls. There are many constraints. In my house (an old small cott...
The rad/room delta t will be bigger with a higher flow temp ASHP, maybe 30 (rads 50, rooms 20) but almost certainly not as big as with a normal fossil...
No doubt that was OK for you, but a comment like this needs an added caveat, that in many cases moving from a fossil fuel based system with rads sized...
That is my understanding too, because of safety concerns, eg what if you need an electrically powered medical device of some sort? Turning off the pow...
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RE: Don’t Install a Heat Pump Until You Read This
@davidnolan22 Perhaps you could post some more info a...
By JamesPa , 1 minute ago
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RE: Help me keep the faith with my air source heat pump installation
OK. I have 2.8 for DHW and 3.4 for space heating runni...
By JamesPa , 7 minutes ago
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RE: Electricity price predictions
Interesting to see the net effect. Unit rates of electr...
By Jeff , 32 minutes ago
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RE: 10kw heat pump run in 24*7 data?
Some observations: 1. I for one don't know the Vailla...
By cathodeRay , 35 minutes ago
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RE: British Gas vs Octopus Energy vs Heat Geek vs EDF vs Aira
That was Aadil from Heat Geek, and yes, his point about...
By Mars , 9 hours ago
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RE: Commencing on an ASHP Installation Process
Given that this thread ultimately turned out to be a di...
By Sheriff Fatman , 10 hours ago
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Ecodan - Flow temperature spiking causing shutdown
Hi everyone, looking for some help. I am in a new bu...
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Buffer tank bypass on EDF Ideal heat pump installation
I have an Ideal Logic Air installed through EDF heat pu...
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Solis AI is on the right track to leverage the battery:...
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread
Not surprised by that. FWIW my Vaillant has done more ...
By JamesPa , 13 hours ago
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RE: Grant 13kW Aerona3 - issues getting zones to temp
Thanks James, its honestly hard to keep it tog...
By Crimson , 14 hours ago
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RE: Extend the colder range of the weather compensation curve?
Thanks for replies. That's good to hear and wanted to ...
By TheBinMan , 14 hours ago
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RE: Air source heat pump roll call – what heat pump brand and model do you have?
Forum Handle: KevB Manufacturer: Ideal Model: 5kW ...
By KevB , 15 hours ago
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RE: DHW heat loss through pumps.
Hi @ngillam I don't have anything as sophisticated for ...
By Marzipan71 , 18 hours ago
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RE: Has anyone seen this problem before? Huge anticycling times
For the information of others. Vaillent came today, che...
By jamesh , 18 hours ago
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Why Millions of UK Homes Struggle With Heat Pumps
For years, we’ve heard a consistent refrain from homeow...
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RE: Here is my heat pump installation with questionable COP in Italy
Hi, and welcome to the forum. I cant quite u...
By JamesPa , 23 hours ago
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I signed up to Havenwise control on the day after the h...
By Sheriff Fatman , 1 day ago
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That's not always the case.Let's see what they say once...
By Transparent , 2 days ago
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