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Last seen: May 31, 2026
We used to have an Indra V2G/H charger, and a leaf, got them in 2020 I think. We had the charger for 3 years, then gave it away as a spare - the comp...
On old (non inverter) compressors there’s sometimes a ‘start’ capacitor thats briefly put in series with a secondary coil, to encourage the compressor...
Like any electrical component, an SPD may fail. They're generally Metal Oxide Varisters (MOV), and over repeated high voltage spikes tend to slowly d...
Power limits are very common in France, typically 9kVA for a household, although anything from 3-36(3phase) is perhaps available. The higher the kVA ...
@transparent I do like the safety first precautionary approach. We could do with it in other aspects of life (PFC's, CO2 emissions...). I trust a ba...
@batpred Below is a simplified problematic RCD circuit I ‘found’. The trigger is the difference between L and N currents, which is then amplified u...
Thanks for the clear explanation @transparent. I think I agree with two sides of this issue: There is a risk that when a unidirectional rcbo/rcd tr...
The risk with an rcbo is that the cheap normal ones use a tiny transformer to create a signal if there is a difference in current between L and N cabl...
A blower door test typically pressurises the home to +/-50Pa relative to outside, and measures the airflow required to achieve this in m^3/hour. Usin...
The underground gas pipes near us are all being replaced, with our street around the time we removed it from our house altogether! I think the gas...
I think home batteries are now very inexpensive, £1000 will get you 16kWh from Aliexpress - I expect +shipping, £1400 all in price from fogstar in the...
Octopus removed our gas meter for free a couple of years ago - leaving a capped plastic pipe sticking out of the ground inside the old meter box. I k...
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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 If the heat pump occasionally over produc...
By Rob of York , 56 minutes ago
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There arent many of these hitachi pumps around here so ...
By JamesPa , 3 hours ago
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RE: Next steps on my ASHP journey: Radiators and Pipework
I think trying to deduce flow rate from an instantaneou...
By JamesPa , 4 hours ago
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RE: 7kW EV Charger Options Advice
I’ve had an EV with wall charger for over 3 years and t...
By AndrewJ , 5 hours ago
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My Adapt is finally installed and running! Almost a yea...
By tomasmcguinness , 6 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 , 3 days ago
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It’s been out a few days and Amazon has already attache...
By Mars , 3 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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