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Last seen: May 31, 2026
Do your gas boiler have weather compensation? If so, enabling it will improve efficiency. I assume the boiler is huge, and can operate at high power...
@bontwoody A lot of the reason the u value doesn’t scale with 1/wall thickness is because in-situ insulation also includes air boundary layers. Tha...
We have a small gshp, and in very cold weather the glycol out can be 0C, sometimes even -6C by the end of winter in a cold snap. Our rads run at 32C ...
I’d recommend getting a smart meter, and asking for daily or finer data. The highest daily gas use in kWh, divided by 24, will be the smallest heatpu...
I have an ohme commando plug charger, and I remember the test charge was a hassle with IO go. The smets 1 smart meter we have was stated as an issue ...
150W average overnight - in order that’ll be: fridgefreezer, mvhr, ftth router, water softener, loads of standby stuff. There’s no standby stuff tha...
We’re all elec too, and on a 100A single phase fuse. I haven’t considered changing it to 3phase - it would be simple though to fit even more PV ...
I made supports out of recycled plastic lumber, aluminium, and stainless screws for our flat epdm garage roof. The lumber is 40x40x3000mm from ‘filcr...
Our hybrid inverter is a sunsynk, and while it states the SOC monitored by the (Seplos mason) battery I’m pretty sure it uses its own voltage measurem...
‘Natural’ gas energy content is usually given at the Lower Heating Value (LHV). This value is not the total chemical energy, but assumes all water cr...
The choice of refrigerant is always a compromise. So far as I'm aware, they are generally: Poisonous / High GWP / ozone depleting / flammable / sup...
Compared to having ‘natural’ gas piped continuously into a home -a permanent gas source, the tiny amount of r290 kept safely in a heatpump for many ma...
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Degrees of Separation
Latest Posts
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RE: Several AC coupled batteries
You can buy a pre-assembled 16kWh battery for about the...
By EtchedPixels , 1 hour ago
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RE: Heat pump design review please: 5 kW Vaillant aroTHERM Plus heat pump
Looks like a very detailed and well comprehensive heat ...
By Batpred , 1 hour ago
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BUS uplift to 9k for off grid installs. I can't establish if new builds are specifically excluded.
Hi.The BUS grant for new self builds is pretty straight...
By jimseng , 3 hours ago
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Looking for installer in Somerset
Hi All I am looking for someone who can re quote for ...
By jimseng , 4 hours ago
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RE: Help with quotes/proposals
@sttpd1917 We did not find a mature heatpump market. ...
By Batpred , 4 hours ago
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RE: Electricity price predictions
Good point, I do expect the bonus of putting my energy ...
By Batpred , 5 hours ago
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RE: Daikin ESPAltherma and Home Assistant installation
@bash, something we haven't touched on already relates ...
By Majordennisbloodnok , 7 hours ago
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RE: GivEnergy inverter tripping due to over-voltage?
@transparent it might be interesting to note the early ...
By Tim441 , 8 hours ago
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RE: Help me keep the faith with my air source heat pump installation
@jamespa these:
By AdamK , 14 hours ago
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RE: Air source heat pump roll call – what heat pump brand and model do you have?
Vaillant arotherm plus 12kW. Installed March 2025. Ex...
By Harebell , 1 day ago
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RE: Load Shift and Lifestyle Shift Complete - our journey has ended, for now
Last year we managed a net nil cost. Exceeding all my h...
By Tim441 , 1 day ago
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RE: MCS 2.0 - Changes in January 2025
It strike's me that there's various improvements which ...
By Temperature_Gradient , 2 days ago
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