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Last seen: May 14, 2026
An earth fault on a TT derived supply (typically but not exclusively overhead lines) will often not trip an MCB/Fuse (or at least not disconnect the f...
@jamespa What I would think of as abnormal would be the heat pump cycling on every small blip in another otherwise fairly consistent OAT, as oppose...
I'd like to highlight two points. 1. Regarding SPDs Most electricians are going to be guided by manufactures instructions and the IET's BS7671. ...
No, I was trying to explain that an RCBO has the functions of an MCB and RCD combined in to a single device. See @transparent 's various replies fo...
I'll let @transparent reply to the points in the above posts as they appear knowledgeable and doing a good job of sorting out the confusion that has o...
The photos show a 16A, C curve, type A RCBO. A RCBO combines the function of an RCD and MCB. The RCD component of the breaker is Type A, 30mA. T...
We recently (Aug 25) had a Grant Aeorana 3 installed under a Eco grant. Initially set with 48degC fixed flow temp for space heating no schedule jus...
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Degrees of Separation
Latest Posts
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RE: Where heat loss surveys seem to go against practical reality
@cathoderay I started to record oil usage per month on ...
By ian33a , 1 hour ago
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RE: Next steps on my ASHP journey: Radiators and Pipework
@bobflux The hydraulic simulator is very interesting...
By Rob of York , 5 hours ago
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RE: 7kW EV Charger Options Advice
Thanks. Yes, we have patchy 4G. The only option we had ...
By Rusty , 10 hours 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 , 1 day 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 , 1 day ago
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RE: Surface mount or bury primaries for heat pump installation?
@jamespa It's rusting 🙂
By tomasmcguinness , 1 day ago
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RE: Glass lined Cylinder for private water supply
Thank you, once again, for your replies. Yes...
By ian33a , 1 day ago
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It’s been out a few days and Amazon has already attache...
By Mars , 1 day ago
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RE: Missing flow temperature in Heat Geek proposal
Yes, and this is another point I agree. We did find a f...
By Batpred , 1 day ago
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RE: Problems with sizing a replacement for a Viessmann Vitocal 200-S
A very good point. In effect, the DHW pipework is an em...
By cathodeRay , 2 days ago
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RE: Solar Power Output – Let’s Compare Generation Figures
@tim441 Here are those same three month periods for 202...
By Toodles , 3 days 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 , 4 days ago
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RE: Adventures in heat loss calculations
@rob-of-york — thanks for posting this, all very useful...
By cathodeRay , 6 days ago
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