Last seen: Nov 11, 2025
The problem is that even if a Manufacturer comes to site it can be a mixed bag on who you get. Some like Vaillant will blame the installer before t...
@toodles I know Greenwave, they are a good team. So don't diss the installer so quickly, sounds like a manufacture fault, or a setup issue.
Can you give me picture of the controller please? There has been a recent upgrade to the controller, but it won't work with the older units. You n...
And yes this was a Grant unit.
@allyfish ripped loads out and made open loop systems, heres just the left overs from one i did last year.
@grahamf happy to help, ive had 4 heat pumps here to test. Currently im running an old Samsung unit, fully open loop, 1 pump, my own automated weath...
@crimson it all depends, on how many rads/ufh are fully open (no actuators or TRVs, a volumiser won't hurt the system (i have 420l worth), that i can ...
@crimson is it this heat pump
My circulation pump cycles, when the compressor is off, heating is still active on the controller (but all is up to temp), its testing the water (lite...
Should have all you radiators and control the load with the heat pump controller, already sound like you're microzoing to try and co...
@crimson if its the Aerona 3, check that you have the latest software, GRANT should be able to help you with this, i know they had a few updates with...
@crimson have changed the pump speed on the Aerona itself, think default is speed 3, you want to try and get both pumps running the same speed(flow ra...
- 27 Forums
- 2,475 Topics
- 56.9 K Posts
- 366 Online
- 6,165 Members
Join Us!
Worth Watching
Latest Posts
-
RE: If a heat pump can only heat DHW to 50C then what? Issue with 18KW Heliotherm heat pump
Hi, Nothing yet. I've asked customer to measure flow...
By errmm , 8 hours ago
-
RE: High Temp Heat Pumps for fast warm-up of house
I don't know exactly how long it takes to heat up (and ...
By JamesPa , 9 hours ago
-
RE: Need help maximising COP of 3.5kW Valiant Aerotherm heat pump
OK. What Im seeing looks fairly normal TBH: 1 start ...
By JamesPa , 10 hours ago
-
RE: Vaillant Tech Support Flagged Low DT: UFH Return Cold, Suspected Zero Flow
@editor thanks for the tips which I will try before cal...
By DavidB , 11 hours ago
-
RE: Daikin 6kw setup with Dixell controller
@jamespa Many thanks for your reply, a very detailed an...
By CraigH , 11 hours ago
-
RE: Exploring the role of alternative clean heating solutions - Government Consultation
Despite reservations, I found some time to respond to t...
By Rusty , 12 hours ago
-
RE: New Vaillant aroTherm Plus in black - When will it come to the UK?
@crankplus, nope, still not, and I've followed up with ...
By Mars , 12 hours ago
-
RE: Octopus Cosy Heat Pump Owners & Discussion Thread
@agentgeorge Probably, but temperature change at -10 ha...
By AndrewJ , 13 hours ago
-
RE: External wall insulation - your experience
To be clear, my experience was very positive. The journ...
By Batpred , 15 hours ago
-
@foxesfan Re: ‘Servicing’ as @editor has covered in his...
By Toodles , 15 hours ago
-
RE: A Smarter Smart Controller from Homely?
@benson No idea why mine doesn’t work, all I see on ...
By Papahuhu , 15 hours ago
-
RE: Battery sizing - How low can you go!
It seems I am seeing something similar to what you do, ...
By Batpred , 16 hours ago
-
RE: Gaslighting in the heat pump industry – has anyone else experienced this?
Don’t know if this is relevant to this thread, but my A...
By Gruff2001 , 17 hours ago
-
RE: Bosch CS5800i 5kW - Experience So Far
@majordennisbloodnok While getting Home Assistant runni...
By Steelbadger , 1 day ago
-
RE: MCS - BS EN 12831-1:2017 – Heat Loss Survey
Since May 2025 it no longer a requirement in England to...
By JamesPa , 1 day ago
-
RE: Air source heat pump roll call – what heat pump brand and model do you have?
Forum Handel @jancold Manufacturer: Daikin Model: E...
By Jancold , 1 day ago
-
RE: Octopus Cosy 12 Heat Pump Regret: Incredibly Loud, Poor Heating & Constant Hum - Help!
@harriworld it was roughly 3am for an hour as that’s ...
By L2jad , 2 days ago
-
RE: Hoped for improvements not being realised on my Mitsubishi heat pump
I have been wondering that myself. The fact is that, ...
By JamesPa , 2 days ago
-
RE: Filtering Tap Water – Share Your Setup for Cleaner, Better-Tasting Water
I remember when I was in my early 20s I was introduced ...
By Majordennisbloodnok , 2 days ago
-
RE: Setback savings - fact or fiction?
But if it is recorded an an integer, which it seems it ...
By cathodeRay , 2 days ago
