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JamesPa
@jamespa
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Illustrious Member
Joined: Apr 3, 2023
Last seen: Aug 26, 2025
Profile Activity
Topics: 17 / Replies: 2704
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RE: Setback savings - fact or fiction?

Potentially a significant finding though since the expectation from the physics is that energy use is proportional to the difference. However are the...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Setback savings - fact or fiction?

I think @cathoderay is correct and it goes even further (unfortunately). Robust empirical evidence (from which we might draw general as opposed to sp...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: buffer/volumizer cupboard space eater, do i need one?

Thanks for raising this and more particularly enumerating the options in a way that I havent previously seen. It may take a few circuits of the buoy ...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: efficiency factor of heat pump brands

I dont doubt you are right. That said I did some calculations a few days ago of the ratio (for a Vaillant heat pump) between the theoretical max...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat pump's integral circulator pump

I have recently been pondering, while trying to help another participant in the forum, why some heat pumps bother to modulate the water pump to mainta...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: advice on excessive shortcycling and overall efficiency

As you say should be straightforward, good luck with the work!

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: advice on excessive shortcycling and overall efficiency

I forgot you had a LLH and secondary pump. Is the service technician who visited proposing to remove it or leave it and add a buffer tank/volumiser i...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: advice on excessive shortcycling and overall efficiency

Yes, just blank off the unused ports. As you have fancoils I would put the volumiser in the flow, not the return, it might just soften the experienc...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Fujitsu Waterstage WOYG160LJL Air Source Heat Pump

No problem if you want to ask more questions but without a doubt leaving these things from time to time is a good idea. only by doing so do you get t...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
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