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Last seen: Sep 9, 2026
Cathy - you have just become the 'go to' person in your area for others wanting to know more about heat-pumps... ... preferably before they even com...
If you are to have glycol added to the system, then I question why have also had (relatively expensive) anti-freeze valves fitted. 🤔 The an...
I'm puzzled by that. The Sig Energy datasheet indicates that there are two separate 240v power outputs.The one marked "Backup" suggests that it shou...
Thanks for the photos. That's in the top 10% of external HP installations which I've seen. 🙂 But it still looks like rain could enter thr...
Some of them even get elected and then decide energy policy 😥 That depends on whether the decisions are being made on the basis of M...
How does their software collect that data? From Smart meters? ... being polled each hour to obtain 'live' data? It's an odd decision to buil...
Yes, most meters (including all Smart Meters) record gas consumption in cubic metres (mĀ³) To convert to kWh... Cubic meters (mĀ³) used x calorific ...
I haven't (yet) done any research on the Sigenstor inverter,but I'm posting a block diagram which is an approximation of your electrics as I've unders...
Erm... you mustn't do that! The configuration of the inverter must limit export to the 27A which the DNO Consent states. May I explain why... ...
That's going to depend on the nature of your contract with the architect. For a new-build, it's usually the case that it is given an Architect's Cer...
Good morning @amiddlemass I realise that @jamespa and I are discussing different subjects with you simultaneously.Let us know if this is getting t...
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Degrees of Separation
Latest Posts
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RE: Adventures in heat loss calculations
Again it depends on what you are calculating from what ...
By JamesPa , 11 minutes ago
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I bought it, read it, enjoyed it. Despite my earlier c...
By JamesPa , 1 hour ago
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RE: Tell us about your Solar (PV) setup
Our PV set-up has moved over time. Warning this is a sh...
By Judith , 14 hours ago
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RE: Where heat loss surveys seem to go against practical reality
@cathoderay @jamespa I've managed to get some nice re...
By Rob of York , 22 hours ago
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RE: 7kW EV Charger Options Advice
Doh, not sure that I was thinking straight there, less ...
By Rusty , 23 hours ago
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RE: Problems with sizing a replacement for a Viessmann Vitocal 200-S
Iām really liking reading through this thread and the r...
By Judith , 1 day ago
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Thank you @trebor12345
By rgabor , 1 day ago
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Panasonic Free Multi Z and Etherea Internal units.
My prospective installers have suggested the Panasonic ...
By Toodles , 2 days ago
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RE: Next steps on my ASHP journey: Radiators and Pipework
Great. You just need to find a way of cranking up your...
By JamesPa , 2 days ago
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RE: Heat Pumps Without Grants: Would You Have Installed One & Will You Now?
We had two heat pumps installed without Govt funding. H...
By Rob of York , 2 days ago
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My Adapt is finally installed and running! Almost a yea...
By tomasmcguinness , 2 days ago
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RE: Being screwed over by Volkswagen Audi Group
Thanks, @batpred. That integration is the one I have in...
By Majordennisbloodnok , 5 days ago
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RE: How Accurate Is My DIY Heat Loss Calculation?
@batpred I suspect it will be more this year. I had 9 ...
By AndrewJ , 5 days ago
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