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AgentGeorge
@agentgeorge
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Estimable Member
Joined: Feb 11, 2025
Last seen: Feb 16, 2026
Profile Activity
Topics: 2 / Replies: 147
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread

@kevh the engineer told me he had a box full of old pcbs that get sent back to NI for processing; likely he means new firmware coded onto the pcb

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Increasing Room Temperature: Radiator Sizing Rule of Thumb Needed

@papahuhu absolutely correct, if you change 2 parameters, you cant prove which one made the difference. If you close a window and put the heater from ...

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

@kevh cant notice any difference, I have a better COP at lower temperatures, can speculate they did something to the efficiency curve?

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Help me keep the faith with my air source heat pump installation

@adamk check the temp sensor specification, +/-0.5C may be the accuracy of it.

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Help me keep the faith with my air source heat pump installation

@simonf no sensor is accurate unless calibrated, I ran the calibration cell in the test laboratory at Gaydon Proving Grounds for a few years; everythi...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Help me keep the faith with my air source heat pump installation

@dr_dongle sounds like an adventure. Ive been in Automotive Electronics all my career, I just rewired my Audi to accept Heated Seats; if you didnt kno...

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

My Cosy6 heat output was 116kWh yesterday, giving an average of 4.8kW/h. Temperature here dipped to -5C last night, coldest so far. COP has dropped ...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Insulating a pitched roof with kingspan, has anyone done it?

@transparent The warm deck roof 150mm thick, eventually a second layer of wool insulation will go up with the ceiling boards The front extension...

2 months ago
Forum
Insulation
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RE: Insulating a pitched roof with kingspan, has anyone done it?

Yes, the builder reminded me to allow a good air gap, have 50mm gap up to the top of roof pitch. always good to state the obvious incase some newbie...

2 months ago
Forum
Insulation
Reply
RE: Insulating a pitched roof with kingspan, has anyone done it?

As you have maximum floor insulation, there will be little heat coming into the loft area from below, and in summer there will be a large solar gain f...

2 months ago
Forum
Insulation
Reply
RE: Octopus Cosy Heat Pump Owners & Discussion Thread

Last night was a good test whether your ASHP was specified correctly to your house heat loss. I’m at 52 degrees North, Central England, OAT levelled...

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

Just had my annual service by Octopus. The engineer replaced the pcb in side the Cosy6 without me prompting him. I asked what the new PCB did, all h...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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