Last seen: Oct 12, 2025
100% is a good level! Our system is a 7kW Vaillant designed for 42C flow temp at -2C external. That gives it some flow in hand for demanding tempera...
Do you have a Sensocomfort? it looks like
Back to gas: we too had the meter removed for free by Octopus. It took very few minutes less than 15, so not a huge subsidy from them. We had a new ga...
Our house has a solid concrete floor cavity walls with old foam insulation and 300mm of insulation in the roof. It’s 190m2in area and 1950s build. The...
I’m not as expert as James but we have Vaillant and are happy with the heat level and wince a bit at the cost when it’s this cold So you ought to be...
While you are pulling the data together that James needs to help you should also download the MyValliant app. It tells you a lot about your system you...
Yes compulsory 3 phase in New Homes Standard is best!
I read this thread since I wanted to know what a reverse ferret was! Please assist. I totally agree with @transparent recommendation of (I assume) f...
an update now the weather is much colder and we lost the concept of solar gain months back. We gradually had to increase the curve to 0.65 to compensa...
@johnnyb that’s very interesting to read!
On this forum with advanced monitoring available a Mitsubishi user whose pump was oversized recommended the cloud based auto-adaptation function to im...
I agreed with your approach on the other thread and so pulling out the general case is a better way of capturing it.
Latest Posts
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RE: Heat loss calculations and how they work in conjunction with heat pump sizing
Looking forward to share ideas with anyone pushing the ...
By Batpred , 8 minutes ago
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RE: Heat Pump Installers: Competence, Illusion and the Hard Truth Homeowners Must Face
I couldn't agree more. We stuck with one particular g...
By Majordennisbloodnok , 27 minutes ago
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RE: Renewables & Heat Pumps in the News
That's an important point for this entire topic: Renewa...
By Transparent , 29 minutes ago
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RE: Ecodan Energy Monitoring Pack
Even large pumps can be on 16 amps single phase, so the...
By Batpred , 2 hours ago
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RE: PV Panels on roof in Conservation Area
I also live in a conservation area in Derbyshire. I sim...
By Morgan , 4 hours ago
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RE: Isolating the system for a planned power cut
I really appreciate you doing this! Solis initially pro...
By Batpred , 12 hours ago
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RE: New Fogstar 15.5kWh upright solution
Yup, when I calculated how long it would take, I though...
By Batpred , 15 hours ago
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Yes, I did mean graduates, but not just in physics. Q...
By Transparent , 16 hours ago
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RE: Radiator sizing for heat pump installation by British Gas - are these correct?
You are spot on. I don't know TBH as I don't have ...
By JamesPa , 20 hours ago
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RE: Daikin Octopus installation update - I saw my first defrost. 😍😂
@editor Just had my first defrost of this season. ...
By Mike Patrick , 23 hours ago
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RE: What crazy nonsense are inverter limits and why are they imposed?
That will be producing significant losses due to phase ...
By Transparent , 2 days ago
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Which tells us something (including possibly everything...
By cathodeRay , 2 days ago
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RE: Flexi-Orb Heat Pump Scheme Update: Progress, Pilots and Why This Matters for Homeowners
Thanks for sharing. Sounds promising, ISO are indepe...
By Batpred , 2 days ago
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RE: Specifying batteries, pv solar etc using ChatGPT
I have been positively surprised when I asked it to spe...
By Batpred , 2 days ago
