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@transparent
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Illustrious Member
Joined: Jan 20, 2022
Last seen: Sep 11, 2025
Profile Activity
Topics: 16 / Replies: 2456
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RE: ASHP Retrofit in a 2015 house with 10mm radiator tails

Well that's refreshing... a new Forum Member who starts by offering lots of data for us to chew over! 😉 Firstly, I agree with your thinking about a...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Say hello and introduce yourself

Welcome @alistairgbarron - and you are certainly not alone in the quest you mention! There are a number of possible 'solutions' being discussed here...

3 years ago
Forum
Introductions, Forum Rules & Updates
Reply
RE: 12kW Samsung gen 6 short cycling

Please ensure that Samsung know about this topic on the RHH Forum, currently over 200 posts and 1442 'views'. There will readers here who do not yet h...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Do I need separate UFH pumps?

Thanks @hjd - this is becoming a bit clearer now. I think that's the key point. It seems that the UFH manifold, associated pump and the room th...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Topic
Tools
3 years ago
Forum
Safety, Regulations, Tools, Plumbing & DIY Installations
Replies: 0
Views: 1522
Reply
RE: Do I need separate UFH pumps?

Sheesh - these instruction manuals are (too) complex. I've just looked at the FTC6 diagrams which @kev-m refers to. It's written to give you lots of p...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 12kw Samsung gen 6. Short cycling

OK... so the point being made in the manual is that an 'ordinary' domestic central heating pump gets operated with a PWM signal, provided that it is c...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 12kw Samsung gen 6. Short cycling

I'm pretty sure that @mike-h 's Pump-2 is a UPS15-20 (or -30) which is the type most commonly used for domestic radiator circuits. It's likely to have...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 12kw Samsung gen 6. Short cycling

Mike H's set-up (details to follow pending any additional photos) And here's the relevant installation diagram from the Grundfos manual for Pump-2...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 12kw Samsung gen 6. Short cycling

I'm adding the annotations for everyone else... ... especially those who will arrive at across this topic in the months and years to come 😉 Annot...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 12kw Samsung gen 6. Short cycling

Let's label a few bits:

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 12kw Samsung gen 6. Short cycling

Salamander make pumps for pressurised showers. Some have automatic pressure regularisation, which enables them to deliver hot and cold evenly when dra...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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