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@transparent
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Joined: Jan 20, 2022
Last seen: Aug 29, 2025
Profile Activity
Topics: 16 / Replies: 2436
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RE: ASHP Retrofit in a 2015 house with 10mm radiator tails

Yes, my 10-year-old UFH pump had an optional wireless controller, which I didn't buy. Instead I just set the flow-rate using a pair of up/down buttons...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP Retrofit in a 2015 house with 10mm radiator tails

If you're going to be fitting a decent pump to push water through those 10mm rad-tails, then it's unlikely to require a bypass. Its internal pressure ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP Retrofit in a 2015 house with 10mm radiator tails

So your time-setting to bring the temperature up to 'daytime' again will need to be an hour or two before you actually want to experience that tempera...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP Retrofit in a 2015 house with 10mm radiator tails

Assume that this 10mm (ext diameter) PEX pipe has the usual 2mm thick walls, and that we're comparing with the more common radiator feed pipe using 15...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
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: 1493
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)
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