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JamesPa
@jamespa
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Illustrious Member
Joined: Apr 3, 2023
Last seen: Jan 14, 2026
Profile Activity
Topics: 20 / Replies: 3933
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread

Yes but (a) you are talking Facebook and (b) it was the coldest day of the year so far so hardly surprising (+ all the things you say above)  

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: British Gas vs Octopus Energy vs Heat Geek vs EDF vs Aira

My strong suspicion is that if a heat pump would otherwise cycle, particularly if it would otherwise cycle with short on time, then setting it to idle...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: 10kw heat pump run in 24*7 data?

Can you clarify why the heat pump seems to go off altogether for several hours each day. [/quote] That is because I run in expanded mode and durin...

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

 

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

Not great. Average run time < 1 hour. Suggests cycling on thermostat or due to oversize. However not that many hours either, when was it fitted? ...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: 10kw heat pump run in 24*7 data?

I would leave for now, make only one change at a time! NR mode will likely improve efficiency but no idea if it's significantly. Of course it also c...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: 10kw heat pump run in 24*7 data?

I'm guessing the sharp dips in FT are defrost cycles. Recovery is slow and I cant see the expected spike immediately after defrost. Have you got 'qu...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Grant 13kW Aerona3 - issues getting zones to temp

Save yourself some angst. Until the flow rate is fixed there is nothing worth speculating about. Once its fixed then measure the temp drop across ...

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

Mine is running on a 3B, albeit one with the official power supply. The power info is currently flaky (known issue with the integration) but you can...

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

Are you able to post any graphs? Unless its cycling or defrosting it should be achieving (at the heat pump) a COP close to spec. Defrost can cripp...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Grant 13kW Aerona3 - issues getting zones to temp

So at DT 5 (the normal design DT for heat pumps) that will transport 4.2kW (assuming water, about 10% less if its glycol). Is that sufficient, if no...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Here is my heat pump installation with questionable COP in Italy

Hi, and welcome to the forum.   I cant quite understand whats going on in the charts because the labels arent obvious. Cn you clarify whic...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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