Last seen: Nov 24, 2025
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;...
As I understand it, if a slowly rising common mode DC is passed through the AC only type of RCDs then it will saturate the core in it, and then it can...
We have two car chargers with different plugs🙄 - a 32A one and a 10A one. The larger one is fed with 6mm2 cable from its own tiny CU (looks j...
I’ve seen our mains voltage very high on occasion, but I’ve never known anything happen due to it. We get 253V on a sunny day here - I looked in the ...
There’s no definitive magic deltaT for a heatpump, just pragmatic ‘generally optimum’. If you put more power into the water pump, the deltaT will redu...
That 2.5% cost increase every degC corresponds to my home-made graph pretty accurately. I was confused by the graph above at first, but then I unders...
Technically I could perhaps be called a heat pump designer, having designed and built the one gshp system that has heated our home for 3 years. It’s ...
Why do panels get damaged if not connected? When they are normally in the sun, they get 800W/m^2 evenly distributed, and they warm up everywhere. S...
In the solar panels. On a nice sunny day, a square metre of panels would get 1kW from the sun. Of this we might expect 200W of electical power if...
We had our gas meter removed too by Octopus, for free. It took the guy 20 minutes to do - he turned off the incoming gas lever in our cabinet, remove...
Latest Posts
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Battery with existing PV - regulations
Im now looking again at batteries because recent change...
By JamesPa , 15 minutes ago
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@sune would these work in a horizontal rather than a ve...
By Grantmethestrength , 15 minutes ago
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RE: Air-to-Air Heat Pump BUS Grant Explained
Thanks for the explanation @karl-r. That's cleared up a...
By Mars , 59 minutes ago
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I had very helpful advice from several forum members ba...
By Steam Powered , 1 hour ago
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RE: Battery storage to run Heat Pump.
That comment is welcome, but can be read in two differe...
By Transparent , 2 hours ago
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RE: Grant 13kW Aerona3 - issues getting zones to temp
Oh the installed needs to go somewhere, that's...
By Crimson , 2 hours ago
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RE: 10kw heat pump run in 24*7 data?
Mostly house comfort! The overall temperature will f...
By JamesPa , 5 hours ago
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RE: Who's your electricity provider and what's your tariff?
I can confirm a trend with EOn ... From compliance/ethi...
By Batpred , 6 hours ago
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Given the underspent for the budget of the Solis invert...
By Batpred , 6 hours ago
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RE: A2A vs A2W: Which Heat Pump Would You Pick?
We have both. The A2A works well in our kitchen where w...
By bontwoody , 7 hours ago
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ASHP Model: Daikin Altherma 3M 4KW House loss: Calcul...
By RadWhisperer , 8 hours ago
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RE: Grant Aerona: Is there a setting to keep the 2-port valve open during pump blockade
Not unless either you allow the AI to turn on cooling w...
By JamesPa , 9 hours ago
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RE: Solis S6-EH1P8K-L-PLUS – Why I Chose It and What I’ve Learned So Far
If you mean with Home Assistant, I have got a Solis mod...
By Batpred , 17 hours ago
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RE: Renewables & Heat Pumps in the News
Sorry I did write a reply to @jeff the other day and th...
By Lucia , 21 hours ago
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RE: Electricity price predictions
I expect to be addressing a meeting of residents living...
By Transparent , 21 hours ago
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RE: Replacing my 18 month old ASHP
Thank you. The pipe work is now insulated. Finding ...
By trebor12345 , 23 hours ago
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I hope this helps I might have put them up here before ...
By Judith , 1 day ago
