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AndrewJ
@andrewj
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Joined: Jan 8, 2025
Last seen: Dec 22, 2025
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Topics: 8 / Replies: 137
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread

I did check and I was subscribed, still am. Didn't receive a notification about this message or the following ones by Agent George!! ( @editor ) ...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread

What I've found with Octopus is difficulty getting to speak to someone who actually knows how these things work in practice - i.e. not in a generic he...

1 month ago
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Air Source Heat Pumps (ASHPs)
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread

It's good that you can keep the whole house warm with the heat pump only producing heat at that period - during those gaps, a lot of the rooms in my h...

1 month ago
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Air Source Heat Pumps (ASHPs)
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread

@editor Hi Mars, even though I'm subscribed to this thread, I'm not receiving any updates when it is amended? EDIT: Although I was notified about J...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread

  That's some story. How did you set it to keep it running constantly?  

1 month ago
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Air Source Heat Pumps (ASHPs)
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread

Sorry, only just seen this I don't know why. I was speaking with an Octopus Engineer last Tuesday and he said that the Cosy 9 can only modulate down ...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Confused by Flow Rates

I too felt the podcast was useful but think it could do with a bit less on the "bad design, installation, commissioning = bad system" as it's been don...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: One room is colder than the rest of the house

@jamespa thanks for all the advice. Just so you know, I'm not ignoring it but pulling it together to try and work out a plan of action. I'm currentl...

2 months ago
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Air Source Heat Pumps (ASHPs)
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RE: One room is colder than the rest of the house

Honestly, I don't know. I can see that it is ramping up to 1.75kWh of power but on other occasions it might be around 0.7kWh.  

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: One room is colder than the rest of the house

I'm finding that the Octopus Cosy doesn't work like that but cycles around the thermostat temp. Still trying to get a little more info out of Octopus...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: One room is colder than the rest of the house

Is this true even at the expense of DeltaT? My bathrooms upstairs rooms are reaching 24-25c with TRVs fully open but were recently balanced to a Delt...

2 months ago
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Air Source Heat Pumps (ASHPs)
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RE: One room is colder than the rest of the house

I think you've discovered why they wanted to upgrade the radiator - if it's a lived-in room, at least some of the time, you'd want it at a comfortable...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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