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jords
@jords
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Joined: Sep 23, 2025
Last seen: Oct 27, 2025
Profile Activity
Topics: 1 / Replies: 9
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RE: My experience with 3 heat pump surveys: Heat Geek, British Gas & Octopus

@chas-b no unfortunately not. The most detail I received was just the loss per room.

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: My experience with 3 heat pump surveys: Heat Geek, British Gas & Octopus

@editor I can understand why. But it’s a shame they don’t give you the details that go into the outcomes. One would assume the formulas they are using...

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: My experience with 3 heat pump surveys: Heat Geek, British Gas & Octopus

@temperature_gradient I didn’t ask that. I assumed they were using the correct nomenclature. The surveyor told me and then I asked for clarification f...

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: My experience with 3 heat pump surveys: Heat Geek, British Gas & Octopus

@egp01 interesting. I hadn’t heard of adia. Looks a bit like our current Tado system but for heat pumps. To be honest I thought TRVs like this were a ...

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: My experience with 3 heat pump surveys: Heat Geek, British Gas & Octopus

@drei this is the formula i was using to rate the radiator output correct to the desired flow temp. =ROUND((((((Flow Temp + (Flow Temp - 5)) / 2) - ...

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: My experience with 3 heat pump surveys: Heat Geek, British Gas & Octopus

@drei good to know thanks. I think there should be more than enough volume in the system. I plan for open loop other than TRVs in the bedrooms in case...

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: My experience with 3 heat pump surveys: Heat Geek, British Gas & Octopus

@editor so my plan is to go away and upgrade all the radiators myself using the highest heat loss estimate for each room. There is about 5m of main “v...

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: My experience with 3 heat pump surveys: Heat Geek, British Gas & Octopus

@editor Heat Geek - 8.45kW, Octopus - 10.27kW, British Gas - 7.69kW I’ll be honest I think BG have made a mistake somewhere as they wanted the most ...

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: My experience with 3 heat pump surveys: Heat Geek, British Gas & Octopus

@jamespa that’s an interesting way to look at it. Given my gas usage the heat loss would be around 4-5kW. But we tend to run our house on the cooler s...

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
Topic
My experience with 3 heat pump surveys: Heat Geek, British Gas & Octopus
12 months ago
Forum
Air Source Heat Pumps (ASHPs)
Replies: 59
Views: 14455
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