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Last seen: Sep 6, 2026
For a TN-C-S (PME) supply the earth to each property is provided via the neutral wire.Your house earth connects to the Neutral at the Service Fuse. ...
I haven't previously met the concept of the local grid being fully self-diagnostic. The DNO Engineers have a device they can attach to the wires whi...
Here's the Power Cut map from Cornwall at 23:00 last night The best strategy for adding a (diesel) generator is to connect it to a dedica...
@jamespa - your diagram with my additions You must have a (rotary) isolator in the supply to the inverter The CU on the right has a...
Indeed. Present ToU tariffs are based on national supply and demand statistics. But most of the new renewable sources of generation are connected ...
Earthing is definitely a subject which is best approached by a local electrician who already understands the ground conditions in the area. I have t...
Certainly worthwhile considering Geya.They're a reputable Chinese manufacturer. But not the left-hand of the two breakers because it's sing...
Those Manual Changeover switches are inter-locked.For each pair of blue levers, only one can be up (ON) at a time. I'll return to your diag...
I do have some Manual Change switches within my off-grid system. You can see that the left-hand one allows heating and lighting to be switched bac...
There are several reputable suppliers of obsolete & ex-stock circuit breakers in UK. Obsolete ElectricalWilrose Electrical and on ebay:Circuit...
The latter is the case. But an electrician won't allow grid-connected and off-grid circuits to share the same CU.That would create a risk of an inco...
No. The Solis and Sunsynk inverters which we're discussing have two separate ports, both of which can supply household loads from your incoming sola...
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RE: 7kW EV Charger Options Advice
@rusty Looks like there’s plenty of room in there for a...
By AndrewJ , 6 hours ago
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RE: Where heat loss surveys seem to go against practical reality
@cathoderay I think there is a reasonable argument t...
By Rob of York , 8 hours ago
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Panasonic Free Multi Z and Etherea Internal units.
My prospective installers have suggested the Panasonic ...
By Toodles , 11 hours ago
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Hi @jamespa , @trebor12345 ,Thank you both for the repl...
By rgabor , 12 hours 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 , 13 hours 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 , 13 hours ago
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My Adapt is finally installed and running! Almost a yea...
By tomasmcguinness , 20 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 , 3 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 , 3 days ago
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RE: Surface mount or bury primaries for heat pump installation?
@jamespa It's rusting 🙂
By tomasmcguinness , 3 days ago
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RE: Glass lined Cylinder for private water supply
Thank you, once again, for your replies. Yes...
By ian33a , 4 days ago
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It’s been out a few days and Amazon has already attache...
By Mars , 4 days 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 , 4 days 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 , 4 days ago
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