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Last seen: Sep 13, 2026
There are a number sticking points with devising tariffs, any of which could suddenly be resolved. The buy-in (wholesale price) paid by Suppliers ...
Like this: That photo shows two double-pole changeover trips in my off-grid consumer unit.The left one is rated 16A (C-curve) and allows my centra...
Well, I have more than a pair of Growatt SPF-series inverters.And there's some bits you don't get to see in the photos I post online! The SPF range ...
That diagram is a good start @longbyre. We do at least now know that we're expecting mains cables to UFH pump(s) and Heating Controllers 2-core w...
@derek-m has a reputation on this forum for tracking down manuals 😎 As for commissioning, are we correct in assuming that the ASHP external heat-pu...
Apologies... I too should always add the relevant photos! These are showing two different layout solutions for the same situation. Both use copper...
There are number of points to made here.I'm explaining in greater detail than you might need because others will come across this later. The two...
@longbyre Was this equipment bought from ESP with any form of government/MCS grant involved? This is important because the grant assistance isn'...
Any chunk of copper bar would achieve that specification! 😉 I usually look out for grade C101, which is 99.9% pure and used commercially for its h...
@misterb if your chosen electrician has fitted the equipment with approval from your DNO, then you should have received a copy of the letter which gav...
I think that's the correct conclusion. An MCB/MCCB is designed to trip at currents which are around 2x its rating. To provide protection for a sho...
As @chickenbig has replied in text, may I also do the same, but in graphics... Here is the twisted-pair configuration we're discussing, which is the...
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Degrees of Separation
Latest Posts
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RE: Siting of the external sensor on a heatpump
Of course had the heat source been a heat pump it would...
By JamesPa , 16 minutes ago
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Never assume, it makes an ass of u and me! OK, tha...
By JamesPa , 40 minutes ago
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RE: Recommendations in Ely (Cambs) area for Full setup checks on Nibe HP setup for House.
In fairness all heating has cost a lot to run in recent...
By JamesPa , 3 hours ago
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RE: Is it the house or the equipment?
@springswood We have two Daikin single split A2A syst...
By Rob of York , 4 hours ago
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RE: Next steps on my ASHP journey: Radiators and Pipework
You should (almost) always reject having a buffer, by w...
By JamesPa , 1 day ago
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RE: Navigating the World of Refrigerants In Heat Pumps: A Guide for Homeowners
Indeed we are invvestigating AC at present and are havi...
By Toodles , 1 day ago
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No, but the heat pump must be capable of delivering a S...
By JamesPa , 2 days ago
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RE: Daikin ESPAltherma and Home Assistant installation
It's laziness lol The PV system is very chatty, meter...
By bobflux , 2 days ago
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RE: Problems with sizing a replacement for a Viessmann Vitocal 200-S
R (The R Project for Statistical Computing, I use it wi...
By cathodeRay , 2 days ago
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RE: Vaillant Arotherm Plus 7KW need a service on it
booked it with Vaillant. will use them until i can find...
By AdamK , 2 days ago
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RE: Adventures in heat loss calculations
I have seen it stated that the declared calorific value...
By JamesPa , 2 days ago
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RE: Two heating zones to one zone
@transparent Many thanks. The garage is fairly well ...
By Profzarkov , 3 days ago
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RE: Vaillant Aurotherm - Heater Wire Position
Ah, good point. I need to check if this was installed i...
By Batpred , 3 days ago
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@batpred thanks for getting a copy. Appreciate the supp...
By Mars , 4 days ago
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