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Last seen: Aug 13, 2026
I’m guessing it’s been a bumper crop for surplus solar the past 3 months.. do you have any experience of agile when it’s cloudy or dull? local house...
Thanks Toodles…
Are there any new kWh rates out at the moment? We don’t have solar pv so we don’t have to worry about import/export. Just electric purchase price. ...
I woke up with Buffer Tanks on my mind last night along with an old reggae musician (sadly now departed). So in my sleep this thought had hit my funny...
@gary ouch.
Nice idea. Clever system, sensing the frost quite early in order to raise the temperature quick enough. As you say it’s a high temp solution. But soun...
@johnmo I think we’ve been trudging through the same black hole of heat pumps for roughly the same time. My post above wasn’t really about user t...
This output rating is very much of interest since a digitally altered HP may possess all the limitations of the higher output model such as minimum ou...
@johnmo are you commenting on @editor s opening post? If it is then I guess you’re commenting on this part of it; ”If the Volumiser is on the Re...
@johnmo yes I can believe that. It seems to be human nature to keep dong what we did before.
Hi Gary, haven’t seen full numbers on your error code but UD appears to be an overheat protection code. You could also do an Info request… like the...
@heatgeek I kind of get it… but aren’t you still in the same situation of having excess flow temp water at the bypass entering the buffer at circa 23 ...
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Degrees of Separation
Latest Posts
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My wife is in the process of purchasing a BEV, this wil...
By Rusty , 50 minutes ago
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RE: Problems with sizing a replacement for a Viessmann Vitocal 200-S
OK. If you had two different flow temps and were going ...
By bobflux , 54 minutes ago
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RE: Adding additional Solar Panels to a DC coupled battery system
@transparent thank you for your reply above. As alway...
By Old_Scientist , 2 hours ago
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RE: Solar Power Output – Let’s Compare Generation Figures
Possibly useful to look at 3 months Jun, Jul, Aug and c...
By Tim441 , 4 hours ago
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RE: How Accurate Is My DIY Heat Loss Calculation?
@kilgorexv definitely a larger inverter will help and m...
By AndrewJ , 2 days ago
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RE: Adventures in heat loss calculations
@rob-of-york — thanks for posting this, all very useful...
By cathodeRay , 2 days ago
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RE: Surface mount or bury primaries for heat pump installation?
The installation is almost done! I've written up two ...
By tomasmcguinness , 2 days ago
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RE: Glass lined Cylinder for private water supply
This has turned into a fascinating little rabbit hole. ...
By Mars , 3 days ago
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RE: Switch suitable to change between two inverter CT's
Last winter my battery ,32KWh, could run the house com...
By Jancold , 3 days ago
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
Agree with Major. And even if I was very happy with ...
By Batpred , 3 days ago
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RE: Is the "divide by 2900" rule still valid?
There is another estimator that you could use, a formul...
By Rob of York , 3 days 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 , 5 days 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 , 6 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 , 6 days ago



