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JamesPa
@jamespa
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Illustrious Member
Joined: Apr 3, 2023
Last seen: Aug 21, 2025
Profile Activity
Topics: 17 / Replies: 2698
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RE: Controversial opinions - pure weather compensation, buffer tank, heat loss, oversized heat pumps

I can't see why that would help. Your heat pump cycles because the demand is less than it's minimum output. The minimum output won't change by chang...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: How To Balance Radiators & the Role of the Lockshield Valve: A Homeowner's Guide

@alfapat are they all the same model? Is there any way you can tell what they are wired to? The answers might affect the strategy for buffer rem...

6 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: How To Balance Radiators & the Role of the Lockshield Valve: A Homeowner's Guide

Nice drawing, Im glad you did it. have you really got two pumps in the primary, one on the feed one on the return. If so are they (and the pump on ...

6 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: The good, the bad and the not that great – my heat pump installation

@dwynwen as I thought it goes nowhere. Very diligent of the installer to insulate it! Please let me know how you get on with reducing the hot water...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: The good, the bad and the not that great – my heat pump installation

@dwynwen just a reminder (as it was now a page of posts ago) to please post a picture of the handheld thermostat.

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: The good, the bad and the not that great – my heat pump installation

I posted a reply to the question about the pipe. re your question above, where is @dwynwen seeing a pressure differential, Im confused (or forgetfu...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: The good, the bad and the not that great – my heat pump installation

Possibly nowhere, just a diligent installer insulating a tail? I think it might be intended for a direct-attach expansion vessel see here/p>

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: The good, the bad and the not that great – my heat pump installation

Domestic hot water and yes its the large tank labelled Kodiak which, hopefully, is the only tank they fitted. Ah, that may account for increa...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: The good, the bad and the not that great – my heat pump installation

I didnt realise that they also had a filter, but it makes sense. Me too, but either the cold fill is fed from the 'mains' (actually water fro...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: The good, the bad and the not that great – my heat pump installation

@transparent did you just reply to my post by editing it? Im pretty sure this grey valve is on the inlet to the DHW, it looks like a standard 'inlet...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: The good, the bad and the not that great – my heat pump installation

@transparent I dont think the grey one is a filter, I think its a pressure regulating valve, part of the 'inlet group' instructions here

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: The good, the bad and the not that great – my heat pump installation

OK. Its good to hear you want to get it working and you do appear to have a good set of parts, so its a case of getting them set up a bit better. H...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
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