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Last seen: Apr 6, 2026
@jamespa Many thanks for your reply, a very detailed and informative response. I will follow your advice and keep persisting to get my wd curve optimi...
Can I ask people's thoughts on whether running in pure lwt mode is far more efficient than setting it up as a room thermostat using the madoka running...
@majordennisbloodnok I will have a look at the ABC post, thanks for the heads up👍
@toodles, thank you for the info. That looks a serious piece of kit!
@majordennisbloodnok I'm just brewing up, putting my thermals on and heading outside for a while, It takes me about 15 minutes to write a reply so tha...
Cheers @majordennisbloodnok, an excellent and informative answer without getting too technical so I could understand it easy enough. My head was a bit...
@editor thank you, yes I'll admit to being a bit too quick making changes (I'll blame my ADHD), it doesn't have to be espaltherma, I haven't a clue wh...
Its a full new system and radiators, we're running it around 19⁰c day and night as we don't like it too hot, heat loss survey was 3.6kw.
Thank you @jancold, you could write down what I know about heat pumps on a box of matches. Id rather ask here than ask my installer, you guys are more...
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Latest Posts
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RE: Problems with sizing a replacement for a Viessmann Vitocal 200-S
Thanks for sharing that. Your objective seems very sen...
By JamesPa , 2 hours ago
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RE: Solar Power Output – Let’s Compare Generation Figures
@toodles Very nice. Ours was the opposite, about 10%...
By Papahuhu , 3 hours ago
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RE: Adding additional Solar Panels to a DC coupled battery system
A couple more points about placing solar panels at low ...
By Transparent , 3 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 , 1 day ago
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RE: Adventures in heat loss calculations
@rob-of-york — thanks for posting this, all very useful...
By cathodeRay , 1 day 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 , 2 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 , 2 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 , 2 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 , 2 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 , 4 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 , 5 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
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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 , 6 days ago


