Joining the Renewable Heating Hub forums is completely free and only takes a minute. By registering you’ll be able to ask questions, join discussions, follow topics you’re interested in, bookmark useful threads and receive notifications when someone replies. Non-registered members also do not have access to our AI features. When choosing your username, please note that it cannot be changed later, so we recommend avoiding brand or product names. Before registering, please take a moment to read the Forum Rules & Terms of Use so we can keep the community helpful, respectful and informative for everyone. Thanks for joining!
Last seen: Apr 24, 2026
@toodles Don’t get me started on car headlight bulbs!
@old_scientist That makes sense then, thanks, I’ve learnt something new. So it is the definitive OAT measurement, it’s incidental that it happens t...
@bontwoody I’m at my math limit vs the data that is provided by Samsung, I can find max values from the heat tables but not min. But I’ve watched the ...
@bontwoody Tell me about it! it’s the 16kW gen6 1P R32 Samsung mono, 50L volumiser on return, upm4xl pump, the heatable floor space is about 240...
@bontwoody Thanks for working through it, although I still don’t know why the heat pump is idle 50% I intentionally paid £100 of it by card. It’s ...
@bontwoody yes, the design temp is 18. I just need to get them to fess up to what the surveyor has already admitted and remedy. There’s about 8 rads t...
@bontwoody Me too, I formally questioned the decision 3 separate occasions prior to the install. Their answer was that the heat loss calculations indi...
@bontwoody Here’s one example where it runs 4 C below the reference temperature (the homely node is in the lounge underneath at design temp 21C). Y...
@bontwoody I have been. I forced a repeat heat loss survey. The surveyor when he was here told me they had made an error in the rooms that are cold, u...
@bontwoody OK. Just thought it looked different to others I’d seen, it was a straw to clutch at at. I used to have a heat pump decades ago on mainland...
@old_scientist Thanks. How can it possibly detect frost if it’s not touching the coil please? It’s a good 5cm away from the fins. The only way I ...
@bontwoody It’s been converted from 3 zone GCH to single open loop. All TRVs are fully open (on 5). I’ve bled it multiple times, there’s about 36l/min...
- 26 Forums
- 2,610 Topics
- 60.8 K Posts
- 1,168 Online
- 6,966 Members
Join Us!
Worth Watching
Latest Posts
-
RE: Anyone concerned about GivEnergy?
An incredibly enlightening piece on the subject by @maj...
By Mars , 2 hours ago
-
Home automation and the cloud; is there a better way?
You’ve just had a brand new system installed (heat pump...
By Majordennisbloodnok , 2 hours ago
-
RE: End-of-Life Heat Pumps: How Do You Dispose of an ASHP in the UK?
We've started to document everything, and part 2 of the...
By Mars , 3 hours ago
-
RE: Summer usage. Why is my Vaillant Aerotherm using so much energy on "heating"?
So the red bars are 'DHW' and the yellow bars 'heating'...
By JamesPa , 4 hours ago
-
Its good kit the Midea and significantly cheaper, you w...
By ASHP-BOBBA , 7 hours ago
-
RE: Indevolt Batteries UK Support & Info Thread
Have you tried cutting the grid feed to see what actual...
By JamesPa , 7 hours ago
-
Contractors pack for inta antifreeze valves are around ...
By ASHP-BOBBA , 7 hours ago
-
RE: Renewables & Heat Pumps in the News
Critics and naysayers will be negative whatever the gov...
By JamesPa , 7 hours ago
-
RE: Microbore heat pump installs
In principle you are almost certainly right, but in pra...
By JamesPa , 18 hours ago
-
RE: Electricity price predictions
@old_scientist We are a low mileage home, so bulk of ou...
By ChandyKris , 19 hours ago
-
There are just too many unknowns for me to comment on p...
By Transparent , 21 hours ago
-
RE: What is the main ‘dictator’ of Agile’s unit price?
@toodles I keep an eye on wholesale prices and energy m...
By ChandyKris , 21 hours ago
-
RE: Brand and installer questions for ASHP
Strange, perhaps it doesnt use modbus which the third p...
By JamesPa , 23 hours ago
-
RE: Upgrading my system, how far do I go?
For comparison, my PW3 with 11.04kW inverter, will char...
By Old_Scientist , 1 day ago
-
RE: Changes to Tesla Powerwall Charging Regime?
Elon gate - legendary! I take my hat off to you @toodle...
By Old_Scientist , 1 day ago
-
RE: Mitsubishi Ecodan not good enough ?
Thanks @goody, appreciate the feedback and sorry you ha...
By marcexec , 2 days ago
-
RE: Minimum and Zero Disrupt Heat Pump Installations
True (first sentence) Thats the reason to consider th...
By JamesPa , 2 days ago
-
RE: High air source heat pump running costs – Vaillant AroTherm Plus
Quite right. I was using a rough guesstimate of doublin...
By Majordennisbloodnok , 2 days ago
-
RE: My Grant R290 9kW Heat Pump Installation
Again, really don't know how accurate this is! &nb...
By petch , 3 days ago
-
RE: MCS Quality Audit – Has Anyone Had One? Did It Lead to Remediation?
@toodles The whole scheme is a shocking waste of money....
By Papahuhu , 3 days ago
-
RE: DIY or Don’t Touch? Solarman Smart Meter Install
Yes, and these guys would probably be my preferred inst...
By Batpred , 3 days ago
-
RE: Hot water tank lose heat rapidly on random days
@jamespa Hopefully their reasons are well intended! ...
By Bash , 3 days ago
-
RE: Ecoflow UK Support & Info Thread
As mentioned above, we’ve got our full review of the Ec...
By Mars , 3 days ago
-
RE: Say hello and introduce yourself
@sonosppp welcome to the forums. I see you've posted in...
By Mars , 4 days ago
-
RE: Guidance with installing a new heating system
@bobflux Great, thanks for the advice. The pipe has an ...
By Hamilton , 4 days ago


