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JamesPa
JamesPa
@jamespa
Moderator
Illustrious Member
Joined: Apr 3, 2023
Last seen: Oct 8, 2026
Profile Activity
Topics: 27 / Replies: 5468
AllTopicsReplies
Reply
RE: Testing new controls/monitoring for Midea Clone ASHP

Hi Contrary to the outrageous claims made by @cathoderay Im not an expert on anything, just a regular guy with degree in physics from 40years ago an...

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

I expect they are all made in the same factory in China! I suspect because the absolute value doesn't matter to the day to day operation and they...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Hoped for improvements not being realised on my Mitsubishi heat pump

OK, 2*22mm good, 1*25mm composite somewhere between pretty bad and unacceptable unless its very short with swept bends only. Do you know roughly ho...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Hoped for improvements not being realised on my Mitsubishi heat pump

Woah - is that single run (flow and return) rather than two runs (2* flow and 2* return) in parallel and roughly how much of this is there please and ...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Hoped for improvements not being realised on my Mitsubishi heat pump

@davidalgarve Thanks, thats great data on the pumps and as you say different but not much. I have some ideas forming both by way of explanation a...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Hoped for improvements not being realised on my Mitsubishi heat pump

@davidalgarve I have deleted your post made in error, I will delete this one also once I know you have read it!

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ideal HP290 14kW ASHP - how to optimise

Firstly its great news that you are improving things! I would try to avoid that TBH as its creating unnecessary resistance. Can you remind us wh...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Vaillant Tech Support Flagged Low DT: UFH Return Cold, Suspected Zero Flow

It will consume more power in the water pump but it is more likely to increase COP than decrease it, because it means that you need a slightly lower f...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Failed install (initial SCOP1.8), clueless installer compounded by poor support from Mitsubishi. Help needed desperately!

Thank you for your reply. As I thought I had made clear in my final sentence above, I don't require anything, I am merely offering to try to help i...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
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