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Last seen: Aug 16, 2026
@transparent @algienon If the batteries were DC coupled rather than AC that might help get it past the DNO as only the inverter could export. It did...
@algienon Welcome Algie, it sounds like you have great backbone for your installation with all the insulation you have added. A couple of comments o...
@graeme I think the variation might be more than you might think. As you say location is an obvious factor but perhaps 'degree days' could be used to ...
I’m in a similar situation to you regarding energy production, but the seasonal difference in SCOP would vary greatly between houses and locations. We...
@toodles I could add about the time, I set fire to the new sofa after leaving it too close to the 'new' gas fire! I still dont know how my parents did...
Some fond memories there Toodles! 🙂
@drew-pa Ah thanks. Good to know I dont have a misconception about it. On Energy Stats Uk Mick Wall gives a rough way of setting the correct curve. ...
@drew-pa Thanks Drew that isn’t how I understand it. To me the curve sets the “gradient” on the weather compensation chart. The desired room temp...
The microbore pipes might not be an immediate no-no, but some investigation would be needed as to whether they would work along with the radiators. He...
@drew-pa It is set on pure weather compensation at internal temperature of 22C. The unit runs 24hrs with a setback overnight. Theoretically that sh...
@hcas Hi , I appreciate the problems with comparing different systems, but this installation is relatively simple with no buffer/LLH. The estimated SC...
@hcas Ive opened all but the bedroom radiator valves, which they want to be cooler. Im running my Samsung at about 42C flow at the moment and still...
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Degrees of Separation
Latest Posts
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
Not a problem; that’s why I left it as it was. The pers...
By Majordennisbloodnok , 10 hours ago
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RE: To re-pipe or not to re-pipe? Moving from oil boiler to air source heat pump.
@penval, really useful update. After all the discussion...
By Mars , 19 hours ago
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RE: Who's your electricity provider and what's your tariff?
@papahuhu I prefer to look at it simplistically. We d...
By Old_Scientist , 2 days ago
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RE: How Accurate Is My DIY Heat Loss Calculation?
D'oh - of course. I shouldn't post before my brain is f...
By Old_Scientist , 2 days ago
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RE: Questions about A2A for heating as well as cooling
@rob-of-york I would concur with the underfloor insulat...
By Toodles , 2 days ago
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RE: New Vaillant Arotherm controls link to existing thermostats ; wired vs wireless
Nothing attached! I have rads but UFH makes the case ...
By JamesPa , 2 days ago
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RE: Cooling with air to water heat pumps
Passive cooling should always be the first call. Keep ...
By JamesPa , 2 days ago
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RE: Do I add Air Con or MVHR to existing A2W ASHP?
@rob-of-york Thank you, I’m thinking along these same l...
By Toodles , 3 days ago
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@Mars Good questions! The downstairs unit did the maj...
By Rob of York , 3 days ago
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RE: Volumisers in Heat Pump Systems: Does Placement Matter?
@dave, I think @jamespa has probably identified the mos...
By Mars , 3 days ago
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RE: Plug and play solar. Thoughts?
My thought is simple. Bring it on and bring on plug in...
By JamesPa , 4 days ago
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RE: Heat Geek mini store vs pump size
Yes I agree, that’s why Heat Geek have most likely sele...
By Tomtheheatingengineer , 5 days ago
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@tomtheheatingengineer, thank you, and welcome to the f...
By Mars , 5 days ago
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RE: Is the "divide by 2900" rule still valid?
Really flow rate is a pipework limitation not a water p...
By JamesPa , 6 days ago
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