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AndrewJ
@andrewj
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Joined: Jan 8, 2025
Last seen: May 24, 2026
Topics: 10 / Replies: 204
Reply
RE: British Gas vs Octopus Energy vs Heat Geek vs EDF vs Aira

It is an excellent discussion and I'm glad everyone focussed on the positives. Thanks for asking my question @editor I appreciate that. This is the ...

6 months ago
Reply
RE: Octopus Cosy Heat Pump Owners & Discussion Thread

@kevh TJ actually recommends the warm weather value should be +15c above target temperature so if you are aiming for indoor temp of 20c, then that val...

6 months ago
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread

@swwils Is this the reason that the lowest flow temperature the Cosy 9 can reach is set at 35c? How critical in this implementation then is flow rate...

6 months ago
Reply
RE: Octopus Cosy Heat Pump Owners & Discussion Thread

@swills Is this the reason that the lowest flow temperature the Cosy 9 can reach is set at 35c? How critical in this implementation then is flow rate...

6 months ago
Reply
RE: Octopus Cosy Heat Pump Owners & Discussion Thread

In fairness that's a very small sample size (of problems/no problems.) It's also a hot bed of people advising on things they don't really understand ...

6 months ago
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread

I think I have plenty of system volume in the radiators plus the volumiser, as you say. I will try dropping the warm temp end to see the effect and I...

6 months ago
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread

@jamespa I agree. It's not to say that some people probably do have problems but the commissioning side of the install is where Octopus let themse...

6 months ago
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread

I was thinking about this a bit. It's probably not a problem if they are all similarly oversized otherwise the flow temperature might be too high for...

6 months ago
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread

There is a Facebook group in which the lead engineer participates but he doesn't get involved in every discussion and his responses are often cryptic ...

6 months ago
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread

Interestingly, being a timber framed house, all internal walls are plasterboard. The internal walls which have an external facing are plasterboard ba...

6 months ago
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread

Sorry if it wasn't clear. I have set all TRVs open, the set temp is 30c which is max (at around 7pm last night from 25c) and turned down the low OAT ...

6 months ago
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread

A bit more information. I monitor the room temps at various times during the day and record them, along with some other pertinent information. Unfor...

6 months ago
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