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Last seen: Sep 21, 2026
If the energy is delivered at cop4 is xkWh then you must supply x/4kWh. If the same amount of energy is delivered at cop 6 you must supply x/6kWh. I...
Er no, you are confusing power and energy. You pay for energy not power. If 24kWh is required then the input energy is 24/cop. So if the cop is 6...
Sorry but that is simply not true and worse still is quite seriously misleading. Whilst the heating is off the house continues to lose heat. It l...
I just ran the numbers through my WC simulator. This calculates, based on Ecodan R32 data, the efficiency gain from various WC curves relative to fix...
It is a cop out and as I say upthread will incur a penalty of 3-6% or more if it's more than a a couple of degrees out. However installers don't was...
This is the 'alternative method' I refer to in a post above. Care needs to be taken with the choice of room stat. Some 'clever' ones, as they appro...
According to his post a few pages back the speeds of both pumps are controlled by an Arduino based system. I did ask what behaviour it targets but go...
Thanks. Doing this would, as you say, eliminate another variable and I did consider suggesting it (and, if this were my system, it is what I would do...
@derek-m - You mean like he has been doing for the last 76 pages, and mine, and that of several other very kind folk? @cathoderay - I tried that ...
As you have not responded to the very simple question asked in my immediately previous post, I can only presume that you haven't bothered to read it. ...
Noted As posted above your sharky data, or your interpretation of it, is incorrect. Thus your 'water power' is likewise incorrect. Sensor 3 i...
Im glad you are warm however the water power as you present it from the sharky (and thus your claimed COP and real COP) is nonsense, as explained seve...
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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 , 7 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 , 9 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 ...
By Mars , 1 day ago
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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...
By Old_Scientist , 1 day ago
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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...
By JamesPa , 2 days ago
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RE: Missing flow temperature in Heat Geek proposal
Yes that's what would happen by turning down the lsv to...
By JamesPa , 2 days ago
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RE: Grant R290 DHW Cycle Interuption
It looks like some sort of short pre-run. The question...
By JamesPa , 2 days ago
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RE: Cascade System or larger single unit
@renewables345 I would say if it a new build it’s no mo...
By Aventus Eco , 2 days ago
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RE: Say hello and introduce yourself
@gz00, welcome to the forums. There’s a huge amount of ...
By Mars , 3 days ago
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RE: Home energy storage & battery register
1 fox ess lv5200 batteries, plus 2 more waiting to be i...
By Jimcub , 3 days ago
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RE: Heat Pump deployment statistics: June 2026
@l8again Unfortunately the government is, I suspect,...
By JamesPa , 3 days ago
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My feed of random industrial auctions turned up this au...
By Prunus , 3 days ago
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We’ve just passed 20 million forum views! 🎉
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