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KevH
@kevh
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Joined: Mar 29, 2025
Last seen: Jul 17, 2026
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Topics: 0 / Replies: 70
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Reply
RE: Octopus Cosy Heat Pump Owners & Discussion Thread

I have plotted myself that exact same chart, and have assumed that the FT levels off beyond the set points, which I think personally is a weakness in ...

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

Ah, yes, so the effect is to shift the WCC towards the cold end by about 5c, so that at -10c OAT your FT is around 46c? Sounds interesting. As @and...

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

This is very interesting and is something I was totally unaware of until now. If I understand correctly, you have adjusted the ends of the WCC which...

11 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Cosy home (?)

That's a similar sized house to mine, also fully insulated, which also loses about 0.4/0.5c per hour on average. I can only think that we lose heat ...

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

This is disappointing. Surely the engineer who called would have known this before he got in his van. I can only assume that he was expecting to fin...

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

@andrewj Watching with interest. I think that your interpretation of your data makes sense, in that the cold weather end of the WC curve does appear ...

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

@jamesPA 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 ...

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

@jamespa Yes, I now get that the 50c top end of the wc range is too high, though I I can still try dropping the setting back for 5 nights (55 to 50) a...

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

@andrewj @jamespa I just want to thank you both for the discussion that you have shared over the past few days, it has been so informative. I have f...

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

@andrewj Bear with me, this is my first post on this forum although I have lurked for a while, and have just come across this thread. Given the numbe...

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
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