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Last seen: Oct 23, 2026
I agree with the first sentiment, I was being provocative. Practically speaking one can download smart meter readings and degree days. These should...
@cathoderay Since you are convinced (and have sone evidence) that your house heat loss is 12kW, let's take that as read and see where it takes ...
I think people, including me, do this simulation exercise as a bit of a sense check and to ascertain how low temperature heating affects their comfort...
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...
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Degrees of Separation
Latest Posts
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RE: New Build 3 Phase or 1Phase
Main issue with 3 phase at low power (16A per phase) is...
By bobflux , 1 second ago
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RE: How will removing the standing charge on gas bills benefit heat pumps?
I'm not sure it makes much of a difference to heat-pump...
By Temperature_Gradient , 9 hours ago
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@editor Ouch, sorry to re start the tick. I had assume...
By DavidB , 10 hours ago
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RE: Say hello and introduce yourself
@e-a-west as the good Major said, welcome to the forums...
By Mars , 11 hours ago
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RE: How much of your renewable and home setup would still work if the internet went down?
Yes I actually have a copy of a tool that whenever a ce...
By EtchedPixels , 21 hours ago
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RE: Indevolt Batteries UK Support & Info Thread
@editor Hi, To resolve this, please tap on the A...
By Indevolt Tech , 1 day ago
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RE: Double or Triple Glazed Windows?
Posted by: @singlespeed With 9 years repairing windo...
By Rob of York , 2 days ago
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@transparent we’re still running a secure version of PH...
By Mars , 2 days ago
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RE: How quickly would you want/expect heat recovery to take from setback?
Much longer than that here. The heating isn't even on. ...
By bobflux , 3 days ago
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RE: Passiv Smart Thermostat - Help & Forum Support
Obviously the weather is changeable but there's a defin...
By Singlespeed , 3 days ago
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RE: The Changing Jet Stream Could Challenge UK Air Source Heat Pumps
@rob-of-york I must admit that when we had a Daikin hea...
By Toodles , 3 days ago
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RE: Forum updates, announcements & issues
Get the Renewable Heating Hub heads-up on WhatsApp. I...
By Mars , 3 days ago
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RE: Safety study for plug in batteries out to tender - looks like Q3 2027 at best before legal
@editor I pointed out to the one of the Fuse execs that...
By dansus , 3 days ago
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RE: 15kw pump for 225m2 1990's house - over kill?
@seaviews As well as loft insulation, there are othe...
By Rob of York , 3 days ago
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