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Last seen: Sep 14, 2026
@transparent. It looks from the picture posted earlier as if this RCD is fed from the main cu. That being the case perhaps there is an MCB in series ...
Same as I quoted, no requirement for an RCD to be fitted but if one is fitted then it must be of a specific type. I think that's very clear and also ...
At a guess because he is one of those electricians that will only put a component from manufacturer x in a box from manufacturer x and will refuse to ...
@trebor12345 Noted. As I say the Valiant installation manual I have does not require an RCD, but does specify the type if one is...
The first question to ask is, does it? What does the latest Vaillant Installation manual actually say? Bear in mind that some tradesmen speak out of...
MCS are inevitably going to be opposed to this because it cuts them completely out of the loop and may well force down prices for 'installed' systems ...
@trebor12345 @batpred My version of the Vaillant installation manual, from about 2 years ago, has specific requirements for RCD type if an RCD is s...
What was the reason given. You don't even need an RCD for external fixed plant, an MCB will suffice (although an RCD is certainly to be preferred).
It's unbelievably sloppy programming. Either a complete rookie or AI must have been responsible for omitting the most basic and blindingly obvious of...
Is this the millennium bug. That's a faintly serious comment; it's entirely possible that DoB is coded with a 2 digit year (although THE millennium b...
Thanks. That's exactly what I was expecting/hoping for if it does in fact fill a niche. I think it's been clear all along that where a standard cyli...
Since we have got onto cylinders, I was wondering if anyone had any experiences with the heat geek mini store in practice? It's obviously not 'ideal'...
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Degrees of Separation
Latest Posts
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RE: Next steps on my ASHP journey: Radiators and Pipework
If it's a separate contract then it would not be zero r...
By JamesPa , 39 minutes ago
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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 , 11 hours ago
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Never assume, it makes an ass of u and me! OK, tha...
By JamesPa , 11 hours 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 , 13 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 , 14 hours 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 , 2 days 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 , 3 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 , 3 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...
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RE: Adventures in heat loss calculations
I have seen it stated that the declared calorific value...
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RE: Two heating zones to one zone
@transparent Many thanks. The garage is fairly well ...
By Profzarkov , 4 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 , 4 days ago
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@batpred thanks for getting a copy. Appreciate the supp...
By Mars , 4 days ago



