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Last seen: Jan 27, 2026
@f1p apologies, you are absolutely correct
@ashp-bobba I agree. I think I'll simplify the system just or my own sanity. It's still oversized using the 30w/m2. I've got a garden office being ...
@f1p Thanks for the reply. Am I not right in thinking it's min =17L/min and max = 40L/min with optimal 32L/min? Model: PUZ-WM112VAA
The limit on this is 28L/Min, which I think I'm right in thinking the way they work will prevent the flow for the whole pump to never exceed 28L/min? ...
@ashp-bobba Its the flow from the outdoor unit prior to the filter
Just noticed this balancing valve on the flow pipe - do these come as standard? Seems odd since the recommended flow is 31 L/min and the maximum is...
@ashp-bobba Thanks for the reply. Would it not work that lowering the pump speed will give the system more time for the heat to be dissipated throu...
Okay, so simply I've got an oversized ashp which is required to produce more heat than can be expelled into the house, thus it constantly switches to ...
@ashp-bobba interesting, but currently the way I’m running the ufh it’s constantly calling for heat, it will never satisfy the room thermostats. so...
@ashp-bobba Hi Bobba, It’s an FTC 6, house was built in 2024. Yes, when the play button goes it switches the pumps off. I’ve asked the pl...
@f1p thanks for the post. interesting, I wonder in that case its modulating down, I think the ashp is massively oversized for the heating d...
@ashp-bobba hey Bobba+Mars, thanks for jumping on the thread. Indeed, the two pumps which switch off are: Heat Pump Circulating...
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Degrees of Separation
Latest Posts
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The positive reviews keep coming in for Britain's Heat ...
By Mars , 2 hours ago
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RE: Next steps on my ASHP journey: Radiators and Pipework
I have one of these fitted which also allows you to reg...
By Old_Scientist , 6 hours ago
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RE: Recommendations in Ely (Cambs) area for Full setup checks on Nibe HP setup for House.
If they can't don't give up. Heat pumps are, in reali...
By JamesPa , 1 day ago
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RE: Starting Our Heat Pump Journey: 1962 build 3 bed detached house
@ian-s I wouldn't be too concerned about the design ...
By Rob of York , 1 day ago
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RE: Missing flow temperature in Heat Geek proposal
Yes that's what would happen by turning down the lsv to...
By JamesPa , 1 day ago
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RE: Grant R290 DHW Cycle Interuption
It looks like some sort of short pre-run. The question...
By JamesPa , 1 day ago
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RE: Cascade System or larger single unit
@renewables345 I would say if it a new build it’s no mo...
By Aventus Eco , 1 day ago
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RE: Why are ASHP installs so expensive?
Posted by: @batpred There´s another aspect that coul...
By Rob of York , 2 days ago
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RE: Say hello and introduce yourself
@gz00, welcome to the forums. There’s a huge amount of ...
By Mars , 2 days ago
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RE: Home energy storage & battery register
1 fox ess lv5200 batteries, plus 2 more waiting to be i...
By Jimcub , 2 days ago
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RE: Heat Pump deployment statistics: June 2026
@l8again Unfortunately the government is, I suspect,...
By JamesPa , 2 days ago
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My feed of random industrial auctions turned up this au...
By Prunus , 2 days ago
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We’ve just passed 20 million forum views! 🎉
It's official. The Renewable Heating Hub forums have of...
By Mars , 3 days ago
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RE: Who's your electricity provider and what's your tariff?
@batpred When the raw material input has increased in c...
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