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JamesPa
@jamespa
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Joined: Apr 3, 2023
Last seen: Nov 25, 2025
Topics: 19 / Replies: 3517
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread

Curious that it reduces the flow rate at higher flow temp. I wonder what the logic is of that? If it were looking to maintain a specific DT then it ...

4 hours ago
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread

I'm not so sure this is a great surprise, there is not much it can do about DT unless it can ramp up the water pump speed, which at some point it will...

4 hours ago
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Replies: 5
Views: 38
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RE: Grant 13kW Aerona3 - issues getting zones to temp

@crimson   Noted. At least you now have a confirmed route forward and a warm house. That, in itself, is a step forward however frustrating ...

8 hours ago
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RE: Grant 13kW Aerona3 - issues getting zones to temp

Or just commission a plumber to do the replumbing? As soon as you touch it your installer will argue that it voids the warranty and I doubt any thir...

9 hours ago
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RE: Grant 13kW Aerona3 - issues getting zones to temp

So sort of progress, but...are you certain its going to be OK when it gets cold again? Obviously thats the case, it always is! OK well at le...

10 hours ago
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RE: 10kw heat pump run in 24*7 data?

Mostly house comfort! The overall temperature will for sure continue to fluctuate still a bit, due to things like wind and solar gain. You need to...

11 hours ago
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RE: 10kw heat pump run in 24*7 data?

Thats very comparable to my experience. Do be patient as you get closer, it takes time to get the heat curve right and zones/radiators perfectly bala...

12 hours ago
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RE: The Importance of Radiator Balancing for Efficient Heating: Introducing the Flow Regulating Valve

How about white or any RAL colour at extra charge? Just kidding! TRV heads are available in black, white, chrome, possibly anthracite. That probab...

14 hours ago
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RE: Grant Aerona: Is there a setting to keep the 2-port valve open during pump blockade

Not unless either you allow the AI to turn on cooling when the sun is strong, or you give it control of the windows and curtains also! No amount of ...

14 hours ago
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RE: A2A vs A2W: Which Heat Pump Would You Pick?

I have A2W. It works well. However ... If I had a modern, open plan low loss house then maybe A2A... except that such a house would probably alrea...

15 hours ago
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