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Last seen: Nov 12, 2026
Yup pretty much. My boiler does actually condense so its just possible that the efficiency exceeds 100%. Hence choosing the 7kW Vaillant which does...
So we can look at the scatter on some more experimental data, here is a plot for my gas fired system. It shows average daily power (ie daily gas cons...
A bit of a moot point as this is now into hand waving territory, but I had in mind +/-10%. Thinking at the next level of detail, if I had a determin...
All agreed except possibly the last sentence. I don't think its as simple as a constant lag because the fabric isnt monolithic. However certainly I ...
Its a very good question and one I pose above. As I say above it does depend on the actual circumstance and what design decisions may be triggered/de...
The elevator reached the level at which I had to get out, so I missed my opportunity to impress the CEO.
OK so I have been giving some thought to a possible gold standard test that can be performed on a house outside a controlled environment. It co...
Scrap them entirely would be my vote. Let those in the industry that deliver for their customers rise naturally, and those that rely on MCS to cover ...
Sorry I got to 1min 14 seconds and gave up. Disorganised, self indulgent, amateur cr*p up to that point, nothing to encourage me to listen to another...
It matters. Averaged over a sufficient time period what you say is absolutely true - its the first law of Thermodynamics! However you were apparen...
Agreed According to your profile you have an ashp, presumably operating weather compensation. This being the case I would expect a much better corr...
Yes sorry £1 per day is what I meant. 1K per kWh is a figure I have seen quoted more than once for a 'professional' install. £160 per kWh changes t...
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Degrees of Separation
Latest Posts
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Should I change my cylinder when changing from a gas boiler to a heat pump.
I have 178 L Gledhill unvented cylinder which was fitte...
By David , 7 hours ago
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RE: Plug and play solar. Thoughts?
Impressions so far from the one I've installed are that...
By EtchedPixels , 8 hours ago
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@batpred The Daikin temperature probe protrudes from th...
By Toodles , 12 hours ago
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RE: Air source heat pump roll call – what heat pump brand and model do you have?
@editor And as an occasional contributor, may I say wel...
By Toodles , 14 hours ago
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RE: Should Households Who Can Afford It Pay More for Energy to Help Those Who Can't?
They don't have to try. Our entire system is d...
By EtchedPixels , 14 hours ago
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RE: Why don't people choose heat pumps?
Fair enough. I guess I was thinking of pipes that run ...
By JamesPa , 14 hours ago
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RE: How Can I Prove Coal Was My Main Heating Source Without Receipts?
Got excepted for the grant now so thanks for the replie...
By Chilli304 , 18 hours ago
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Daikin Altherma 3 R F+W, room thermostat control, weath...
By JanHarley , 19 hours ago
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RE: Buffer tank on a 2 x 14kw Ecodan system
Pretty much as I had guessed in my crude scaling from m...
By JamesPa , 22 hours ago
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RE: Help me keep the faith with my air source heat pump installation
Well you have a vibration generator running at some fre...
By bobflux , 1 day ago
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RE: Who's your electricity provider and what's your tariff?
@downfield Thats a decent rate, I’m shocked they hadn...
By Papahuhu , 2 days ago
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RE: Adventures in heat loss calculations
@toodles thanks! So as suspected, around a doubling of ...
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Six books in three years and I think I’ve now covered j...
By Mars , 3 days ago
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