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AndrewJ
@andrewj
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Reputable Member
Joined: Jan 8, 2025
Last seen: May 24, 2026
Topics: 10 / Replies: 204
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread

@agentgeorge Probably, but temperature change at -10 has little effect without a warm weather change as well. It just flattens the curve out: I haven...

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

@kevh So it does... maybe they are listening to people.

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

Press and hold until the light turns blue, not flashing. Then open your phone/tablet settings and look for the cosy hub wifi and connect to that. Na...

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

See my graph in response to @kevh. It may be possible in the hub to set a temp lower than -10c, I've not tried, but the returns really diminish alter...

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

I feel sorry for those people who have it installed under default commissioning or minimum setup, which seems to be the norm not just for Octopus, as ...

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

In the app, the minimum you can set it to is 50c but that may just flat-line the curve from the 50c point set in the hub to the -10C OAT mark. What y...

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

@swwils I believe it is well insulated: it’s a Finnish timber frame house designed to cope with Finnish winters. The basic structure is 1980s technol...

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

@agentgeorge I’m aware of the process - in fact, it’s been mentioned by @jamespa and @toodles in this thread a few times. The approach requires reduc...

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

I don’t know how it is implemented but the two temps you select are the end points at -10c and +12c. The WC curve is, as far as people can tell, line...

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

@agentgeorge They redid the survey and determined the heat loss was 1kW less than original. This also then identified that most of the radiators were...

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

@swwils I tried that, but couldn’t get the flow temp down low enough to stop overheating.

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

If the hardware limits what can be done then I don't see what an advanced controls mode could actually do. Currently, it is possible to run as "alway...

4 months ago
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