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Last seen: Sep 6, 2026
Given your background, are you open to the idea of assembling your own battery on-site? A nominal 13kWh battery would cost about £2,000 for the hard...
Please clarify. If you have generation-based FIT, the amount you receive is linked to what the existing inverter outputs to the home.It matters not ...
Thanks @toodles for delivering the full text. I'm getting most of the Derril Water story from elsewhere, but I'm missing the crucial source referenc...
No. The shape of the waveform has no bearing on the decision to use an RCD. BTW. I'm still unsure why you're making "DC Component" into a...
Erm... I can interpret that question in more than one way, so I'm unsure of the angle you're taking. All Type-B RCDs and RCBOs will correctly trip i...
Thanks Tim. That SolarEdge data also shows voltages above 253v. But we don't know enough to tell what's happening. Eg Is the voltage falling aga...
I don't believe it's in the Vaillant documentation. I can see no functional advantage in a heat-pump being supplied via an RCD. It's purely a prot...
The additional profit being made the installers.
The issue isn't DC leakage. Type-B RCDs and RCBOs will trip correctly despite the waveform having a DC component present. You need the contacts to...
I just read that article, @jamespa It seems the bodies are beginning to pile up...
OP wrote: So I'd be interested to know where the feed to the new CU is supplied from...... and what size cable it has between the two units.
Hager CDB540HP is a Residual Current Circuit Breaker. Here's the English text in the Installation Manual.It measures current which leaks to earth. ...
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Degrees of Separation
Latest Posts
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RE: Next steps on my ASHP journey: Radiators and Pipework
Or where you can fix the pwm% as you can eg with Vaulla...
By JamesPa , 4 hours ago
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RE: Where heat loss surveys seem to go against practical reality
@cathoderay and others. I think there may be some con...
By JamesPa , 4 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 , 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 , 2 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 , 2 days ago
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RE: Surface mount or bury primaries for heat pump installation?
@jamespa It's rusting 🙂
By tomasmcguinness , 2 days ago
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RE: Glass lined Cylinder for private water supply
Thank you, once again, for your replies. Yes...
By ian33a , 2 days ago
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It’s been out a few days and Amazon has already attache...
By Mars , 2 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 , 3 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 , 3 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 , 5 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 , 6 days ago
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RE: Adventures in heat loss calculations
@rob-of-york — thanks for posting this, all very useful...
By cathodeRay , 1 week ago
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