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Last seen: Nov 11, 2026
Definitely - I didnt realise that they had a stake in the house in warehouse. Octopus also have access to 'big data' from their installed heat pumps...
With his permission I did some analysis on the plots of 'similar days' posted by @cathoderay a few posts ago. The most important thing that comes o...
The heating curve specifies a higher LWT at low OATs, and a lower LWT at higher OATs. Thats the whole point of the heating curve - it varies the LWT ...
It is indeed a good question. The purpose is always said to be to ensure that there is sufficient water in the system to yield sufficient energy to...
Mine are also upstairs because I upgraded them before I realised how much the heat pump industry overestimates house losses. Still not a problem alth...
I confess I had to look up 'ceritus paribus', but having done so it is the problem with almost anything to do with domestic heating and heat pumps (po...
The deviations can be handled by a) the lockshield valve. this restricts the flow rate through the rad in question which increases the deltaT for ...
Noted but (a) constant vs variable flow rate doesn't materially affect cycling, that is determined by the how far the heat pump can modulate down its ...
I haven't yet bothered optimising the heat pump cycle, I just leave it on 24*7. I did my calculations to get to 19.3p per kWh from mid Nov - mid Feb....
Thanks I presume 3.86kW applies to export (is this correct?). I already have 3.86kW export capacity for the solar, Im guessing they are unlikely ...
Im interested in that comment. I would like, and can afford, to get a battery. But I cant, however hard I try, make the business case pay (and I d...
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Degrees of Separation
Latest Posts
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RE: Why don't people choose heat pumps?
This review of "Best air-to-air heat pumps UK 2026" may...
By Rob of York , 4 minutes ago
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RE: Help me keep the faith with my air source heat pump installation
And even with that, it still hums ? Damn
By bobflux , 1 hour ago
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RE: Buffer tank on a 2 x 14kw Ecodan system
Yeah, someone dropped a bucketload of circulators on th...
By bobflux , 6 hours 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 , 20 hours ago
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RE: Should Households Who Can Afford It Pay More for Energy to Help Those Who Can't?
@batpred I mentioned earlier that targeting the payment...
By Toodles , 21 hours ago
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RE: Adventures in heat loss calculations
@toodles thanks! So as suspected, around a doubling of ...
By SusannaSaunders , 24 hours ago
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Six books in three years and I think I’ve now covered j...
By Mars , 1 day ago
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RE: Grant Aerona3 13kw - Buffer Tank - Heating Journey
@heymikey Well done in achieving as nearer a match acro...
By Toodles , 1 day ago
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Grant Aerona - Weather Compensation and Schedules
Im trying to set up a friends Grant Aerona. The WC curv...
By bontwoody , 2 days ago
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RE: Air-to-Air Heat Pumps & Air Conditioning: UK Heating and Cooling Q&A
@jamespa I agree, the efficiency of Cosy Cooler ought...
By Rob of York , 2 days ago
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RE: How much of your renewable and home setup would still work if the internet went down?
I think you're right! 🤨
By Transparent , 3 days ago
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RE: Renewables & Heat Pumps in the News
ECO4 muddies the water somewhat, and then some. I thi...
By cathodeRay , 3 days ago
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RE: Vaillant ecoTEC Plus - Flow Temp and Set Up
If there is a drain nearby that's exactly what I would ...
By JamesPa , 3 days ago
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I think that CCGT plant in Lingen is more likely to suc...
By Transparent , 4 days ago
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