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@editor
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Illustrious Member
Joined: Feb 11, 2021
Last seen: May 21, 2025
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Topics: 293 / Replies: 2913
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RE: Heat Pump Manufacturers Recommending Buffer Tanks

@damon you've fitted a few Viessmann's – can you please elaborate a bit about the buffer/volumiser on these units?

2 weeks ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Rate the quality of your heat pump design and installation

@davesoa very good to know... I'll convey this to Clayton Browne (MD and the CB in CB Heating). Thanks for sharing. It's nice to see positive feedback...

2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat Pump Manufacturers Recommending Buffer Tanks

I don’t think I’d be willing to personally put it to the test, but I do think there’s a reasonable argument that you could successfully challenge a vo...

2 weeks ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Manufacturers Recommending Buffer Tanks

Welcome to the forums Graham. The idea that we need a buffer because of mismatched flows between source and load is rooted more in legacy commercial...

2 weeks ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Topic
Is Your 6kW Air Source Heat Pump Really a 6kW?
2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Replies: 8
Views: 192
Reply
RE: Struggling to Find a Top Heat Pump Installer? We Can Connect You With the Best Installers in the UK

@johnd it's a difficult one, because we've seen instances where lesser known brands vanish over time and all support goes out the window. I'm not impl...

2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Struggling to Find a Top Heat Pump Installer? We Can Connect You With the Best Installers in the UK

@johnd welcome to the forums. First time I've ever heard of this brand. Was it recommended to you by an installer?

2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Topic
Win a 6-panel PV courtesy of egg and Renewable Heating Hub
2 weeks ago
Forum
Your Home
Replies: 0
Views: 95
Reply
RE: Volumisers in Heat Pump Systems: Does Placement Matter?

You’re absolutely right that during defrost the refrigeration cycle reverses, not the flow and return pipes. And yes, the cold water produced by defro...

2 weeks ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Advice for ground source heat pump in new build with PV and batteries

Even though GSHPs are more expensive upfront, they generally offer a longer lifespan than ASHPs and significantly better SCOPs when well designed. @...

2 weeks ago
Forum
Grounds Source Heat Pump (GSHPs)
Reply
RE: Ecodan UD 0-0 error

As far as I know (and I stand to be corrected) in normal operation, typical condensing temperatures on an ASHP are usually in the 40–60C range, depend...

2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan UD 0-0 error

@gary my Mitsubishi contact recommended you call the support line, and sent me this.

2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
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