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razz
@razz
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Eminent Member
Joined: Jan 11, 2026
Last seen: Feb 17, 2026
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Topics: 1 / Replies: 23
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RE: Octopus Cosy 12 Heat Pump Regret: Incredibly Loud, Poor Heating & Constant Hum - Help!

@swwils Done it already. Sent the same files I shared in my original post.Also just sent a bit of sternly worded letter saying I'm sick of all the dis...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Octopus Cosy 12 Heat Pump Regret: Incredibly Loud, Poor Heating & Constant Hum - Help!

@l2jad So sorry to hear your terrible situation. I did a fair bit of research before installing mine. I am very environmentally minded and stupidly di...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Octopus Cosy 12 Heat Pump Regret: Incredibly Loud, Poor Heating & Constant Hum - Help!

@editor You're doing incredible work keeping up with all this, and speaking directly to Octopus. I'm having to also turn it right down at night btw. I...

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

@swwils Have you got pictures of what you did?

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Octopus Cosy 12 Heat Pump Regret: Incredibly Loud, Poor Heating & Constant Hum - Help!

@dedwardsards I've had the Octpus people come in and have a look, and they turned the pump down, but no luck.From what I can tell, sometimes the noise...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Octopus Cosy 12 Heat Pump Regret: Incredibly Loud, Poor Heating & Constant Hum - Help!

@jamespa Thanks again for your valuable insights (and to everyone else).1:I'll ask octopus why they didn't use a 2-port volumiser instead of a 4-port ...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Octopus Cosy 12 Heat Pump Regret: Incredibly Loud, Poor Heating & Constant Hum - Help!

@editor I've had the installer come on Wednesday, and he said it's a buffer AND a volumizer 🤨, and had to be installed because it was easier t...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Octopus Cosy 12 Heat Pump Regret: Incredibly Loud, Poor Heating & Constant Hum - Help!

@bigfish Very similar situation here. I measured with the Octopus recommended decibelX app, and the noise also reaches over 70db here.I'm not in a rur...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Octopus Cosy 12 Heat Pump Regret: Incredibly Loud, Poor Heating & Constant Hum - Help!

So, after much anguish, and even visiting the neighbour to see if the noise was coming from their place, it seems I MAY have identified a part of the ...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Octopus Cosy 12 Heat Pump Regret: Incredibly Loud, Poor Heating & Constant Hum - Help!

Well, the guy came out, turned the heat pump to max, we stood outside near it for a bit, and acted shocked that I thought the sound was loud, tbf, it ...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Octopus Cosy 12 Heat Pump Regret: Incredibly Loud, Poor Heating & Constant Hum - Help!

Thank you both for your kind comments. I've had an emergency engineer come by yesterday and dismiss it all.I've asked for a more experienced one to co...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Topic
Octopus Cosy 12 Heat Pump Regret: Incredibly Loud, Poor Heating & Constant Hum - Help!
2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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