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Last seen: May 8, 2026
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...
If you get windows replaced, then I think it's well worth getting low U value units in whatever the frames are. It's not simply 3G is better than 2G;...
Latest Posts
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Mentally you have to separate the ac side and the DC si...
By JamesPa , 3 hours ago
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RE: Help me keep the faith with my air source heat pump installation
My heating developed a really severe case of noise and ...
By JamesPa , 5 hours ago
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RE: Octopus Cosy 12 Heat Pump Regret: Incredibly Loud, Poor Heating & Constant Hum - Help!
@l2jad I was just thinking all things being equal. Our ...
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RE: Heat Pump Manufacturers Recommending Buffer Tanks
Hopefully the ambient temperature sensor drives a weath...
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RE: How many people are happy with their ASHP and do you believe them?
Im looking into these and my figures. The think that I...
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Hi, Does anybody have experience with Heat Geek insta...
By sttpd1917 , 1 day ago
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RE: Heat Pump Operation in Summer - Valliant 7kW
Yes - we use our Mitsi 14kW unit for cooling. I have j...
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I will soon be struggling. Admittedly it is the summer,...
By Batpred , 1 day ago
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RE: Indevolt Batteries UK Support & Info Thread
Not known yet. I've asked a local Councillor to follo...
By Transparent , 2 days ago
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Hard to tell but I think I have placed the arrow on wha...
By ASHP-BOBBA , 2 days ago
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RE: Who do I complain to about a poor ECO4 installation, can anyone advise?
Great. My guess is that you will need to re-adjust yo...
By JamesPa , 2 days ago
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RE: UK warm homes plan - how can it be delivered?
I know it is not as simple as going from a fossil fuel ...
By Batpred , 3 days ago
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@editor this is great news.
By ASHP-BOBBA , 4 days ago
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RE: Daikin Altherma 3 with Fan Coils in Puglia (Italy)… Sanity Check on System Operation
AH (Absolute humidity) is grams of moisture per volume ...
By bobflux , 4 days ago
