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Last seen: Sep 21, 2026
Thanks. One more question, what is the source of your electricity meter readings and do they include anything other than the heat pump?
I do remember the discussion. It would be interesting, at least for me, to try to rationalise the figures. I suspect multiple factors may be in pla...
No problem. Something doesn't make sense and it would be good to get to the bottom of it. The divide by 2000 approach (open university says 2200) ...
Thanks. I am sorry that, with multiple simultaneous threads, I can't remember everything! How quickly and how much did your house cool when you wer...
Not doubting the data, just trying to reconcile your oil consumption with your heat pump consumption whilst assuming your house loss has remained the ...
Doubtless it is the case, for example if you live in an uninsulated barn heated part time, or want to run a heat pump in the same fast and furious way...
If this is the case and you were previously using 10MWh per annum in oil, then your heat pump is running very inefficiently not at a COP of 3, or some...
Agreed, so long as you average over an appropriate period, say 6-24 hrs. If you consider instant heat delivered or heat delivered over a short period...
How did you come to the conclusion you need 12kW (what calculation did you do?). I'm genuinely trying to understand. It doesn't prima face make much...
If you want to run a heat pump inefficiently then of course you will need a higher capacity. How did you come to the conclusion you need 12kW? If ...
Afaik there are two considerations namely pump head and water velocity (causes noise and erosion). A short piece of straight 22mm isn't going to incr...
Seconded. But do you reckon that the average MCS guy is going to give you the choice? My underlying issue is that we are told what we 'must' have by...
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Degrees of Separation
Latest Posts
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RE: Starting Our Heat Pump Journey: 1962 build 3 bed detached house
Posted by: @ian-s Could always use the money saved o...
By Rob of York , 6 hours ago
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RE: Why are ASHP installs so expensive?
And then you look at US electricity prices and weep.
By bornagain , 8 hours ago
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Depends on what controls the pump! Thats the whole poi...
By JamesPa , 13 hours ago
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The positive reviews keep coming in for Britain's Heat ...
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RE: Next steps on my ASHP journey: Radiators and Pipework
I have one of these fitted which also allows you to reg...
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RE: Recommendations in Ely (Cambs) area for Full setup checks on Nibe HP setup for House.
If they can't don't give up. Heat pumps are, in reali...
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RE: Missing flow temperature in Heat Geek proposal
Yes that's what would happen by turning down the lsv to...
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RE: Grant R290 DHW Cycle Interuption
It looks like some sort of short pre-run. The question...
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RE: Cascade System or larger single unit
@renewables345 I would say if it a new build it’s no mo...
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RE: Heat Pump deployment statistics: June 2026
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My feed of random industrial auctions turned up this au...
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