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Last seen: Aug 8, 2026
Re (2) I misinterpreted your earlier post. The actual requirement is here "(ii)the system providing space heating or water heating, or both, of ...
@newby OK here are my considered thoughts based on info so far: Very sensible! General comments: I think its unlikely, bu...
Loss assessments can be a very serious case of GIGO. I had two, both coming out at 16kW following, in each case, a 3 hour survey. I did the calculat...
You will struggle to persuade an installer to do this and nor would I necessarily advise it without careful thought (although I wouldn't rule it out e...
Hi I will give it some thought but in the mean time I found these capacity tables, basically its 7kW in practice. I have no recollection w...
Firstly very well done indeed for actually doing something leftfield. If nothing else it proves that heat pumps arent so mysterious, tehy are just a ...
Yes. I used data from Home Assistant and a Shelley to capture data last year and this year Im back with Octopus (not because of the data download,...
I think you said its an 11.2kW model and your house is a bit over 8kW. Thats certainly a bit oversized but not unusual by any means. In reality heat...
@chimpy Welcome to the forums. Firstly can I say that many people do have excellent experiences with Mitsubishi heat pumps and I am sure you cou...
Unless you have unscrewed them from the valves then it depends on the room temperature, TRVs close or open according to room temp. I think 3 may be a...
These will be ones that are at a state of almost closed. The water whistles through. I have occasionally experienced the same with LSVs but a tiny t...
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Degrees of Separation
Latest Posts
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RE: Electricity price predictions
Interesting read from NESO on their Demand Flexibility ...
By Old_Scientist , 1 hour 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 , 3 hours 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 , 13 hours 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 , 16 hours 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 , 21 hours ago
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RE: Do I need to change the control unit when replacing my Ecodan Air Source Heat Pump
One of the other mods has just reminded me that @ashp-b...
By Majordennisbloodnok , 22 hours ago
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RE: Indevolt Batteries UK Support & Info Thread
My ideal install would have my battery installed before...
By BlizzardGreen , 2 days ago
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RE: PV and battery long payback - sense check query
@old_scientist I have now drafted 2 replies - both have...
By DavidB , 3 days ago
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RE: Air source heat pump roll call – what heat pump brand and model do you have?
Forum Handle: adrian Manufacturer: Appliandirect.co....
By Adrian , 3 days ago
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RE: Acond heat pump failed after four years - diagnostic quote £940 plus VAT
@downfield Thank you Downfield. This sounds potenti...
By Mia , 4 days ago
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RE: Digest of UK Energy Statistics
@jeff Yes my brother in Oz told me of that charge year...
By Jancold , 4 days ago
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