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Last seen: Aug 9, 2026
Sorry to heat that - it should be possible to improve on this situation. 'The rest of the house cold' suggests you are not heating the whole house,...
That matches the TN-C-S diagram here Your post crossed with mine which has both diagrams from the IET and a bit of a comment.
Please dont feel obliged to respond quickly or at all, we all do this in our time on an as and when basis. I am very grateful for any input which has...
Welcome to the forum and I am sorry you are disappointed. In fairness this time of year is by far the most expensive and the most noisy time for hea...
My house/experience: a) 2off 'professional' 3 hour surveys: 16kW. One I paid £300 for the other was FOC, different surveyors/heat pump installers ...
@anon67 Sorry I cant help. The only 'lead' you might follow is the fact it works for DHW. The faults look like they would affect DHW also but a...
@davec Ive had a look at the screenshots. Lots of the parameters are things you wouldn't want to touch but: Im guessing H43 and H44 are the two F...
When I had a series of apparently unrelated faults my installer turned up, checked the flow rate using the test menu, and cleaned the filters (two - a...
At this stage I would say no as gross underestimation of the loss is not the most likely cause of the problem. More likely causes are (a) the heat...
I cant see how that is the case if the earth is provided by means of a bond to the metal outer sheath of the incomer; no cut (other than one in your d...
Thanks for the clarification.
OK, TBH I dont know enough about MLCP to comment with any authority. The simple message so far as I am aware is: Nothing inherently wrong with plasti...
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RE: Electricity price predictions
Agreed - there's a place for everything from "Dunno, I ...
By EtchedPixels , 21 minutes ago
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Further, there was a long discussion of the benefits of...
By Old_Scientist , 3 hours ago
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I appreciate that EnergyPlus is Valliant's first attemp...
By L8Again , 3 hours ago
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RE: Do I need to change the control unit when replacing my Ecodan Air Source Heat Pump
Unfortunately the answer is Yes you will need a new FTC...
By F1p , 18 hours ago
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RE: PV and battery long payback - sense check query
So if it helps I was recently quoted about 8 grand for ...
By EtchedPixels , 18 hours ago
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RE: HomeTherma Is Live: A New Home-Energy Platform Built Around the Homeowner
Signed up!
By bobflux , 1 day ago
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RE: Indevolt Batteries UK Support & Info Thread
I had a quick look and they are a little vague. They ...
By BlizzardGreen , 2 days ago
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RE: Has anyone seen this problem before? Huge anticycling times
Oh dear. Glad it was replaced. I have been mighty imp...
By JamesPa , 2 days ago
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RE: Can I start an argument about buffer tanks please? 🙂
Dont, just adjust the LSVs to get different temperature...
By JamesPa , 3 days ago
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RE: Heat pump running costs – what has actually worked for you?
I installed the air source heat pump in January 2026, i...
By bobflux , 3 days ago
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RE: Grant Aerona Air to Water R290 6.5 kW - Quiet Mark and Silent Running
Thats all interesting. DHW on my Vailant seems to respe...
By JamesPa , 3 days ago



