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Last seen: Apr 17, 2026
@jamespa I chose Octopus as they will be in business far longer than any individual company, their heat pump uses R290, which is supposed to be state ...
Section 7 states the Cosy 6 is 5.63kW and can achieve COP of 4.29
reading section 3.6.1A and B the instructions have an error in the description of the MCB and RCBO for the cosy6, and the Immersion/hub The labels...
@jamespa just read the manual you linked to. very interesting section 3.3.2 restrictive requirements if microbore present. None of this was advised to...
@jamespa I have cosy6 and UFH, the maximum flow winter temp is set at 50 on mine, checking the UFH manifold stats today showed a steady input of 37, r...
How do those on low income afford to replace their gas boiler at around £2500-3000; that’s what I was quoted to replace my troublesome uninsurable 16y...
With every change there will be winners and losers, think of all the pensioners who are paying the subsidy on there electric bill to pay for those who...
@swwils what tool are you using to monitor the bus
@pwils on the cosy hub, there’s a button on the top, press and hold it for several seconds, the cosy white light will flash blue and you can link your...
@andrewj I hope members enjoyed reading my tale of the challenge to get what I wanted and not what the installer tried to convince me was a finishe...
@andrewj when I referred to the HP running constantly, I didn’t mean the pump was running 24h a day, I meant the system was on 24/7, with no setbacks ...
I’ve just got the link for this thread from @editor, here’s my experience with the cosy6. firstly it’s not 6kW, only 5.6kW. That nearly sank my inst...
Latest Posts
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@david999 ... just water, David, or do you add anything...
By colinc , 14 minutes ago
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RE: Our 10 year old Grant heat pump failed
Since my last post on this topic we've reached a conclu...
By Mike Patrick , 52 minutes ago
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Brown Oily Residue Blocking Air Vent and Weeping Relief Valve... Anyone Seen This?
My installation is 4 years old. After about 18 months a...
By seoras , 3 hours ago
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RE: Renewables & Heat Pumps in the News
An article on funding for heat pumps in case anyone is ...
By Jeff , 4 hours ago
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RE: Indevolt Batteries UK Support & Info Thread
Thanks @editor , @indevolt-uk Subject to any comments ...
By JamesPa , 12 hours ago
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RE: Share Your Experiences with Heat Pump Manufacturer Support
@seoras Sorry to hear that. I found Vaillant very help...
By JamesPa , 12 hours ago
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The Watchdog That Watched and Waited
On 9 January 2026, Consumer Energy Solutions collapsed ...
By Mars , 16 hours ago
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RE: GSHP Kaput After 16 Years: New Compressor or Switch to ASHP? Advice Welcome
Cool Energy in Grimsby sell ground source heat pumps an...
By DerekDeLeon , 16 hours ago
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RE: Valliant Heat Pump Settings
Thats arguably a sign of a good installer - they unders...
By JamesPa , 17 hours ago
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RE: Electricity price predictions
Well, we have so many cases where rain water mixes with...
By Batpred , 18 hours ago
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RE: Two heating zones to one zone
@profzarkov They arent obviously wrong, but the only...
By JamesPa , 20 hours ago
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RE: Towns water feed to air source heat pump system
The DHW circuit cant be separated (well it could, you c...
By JamesPa , 20 hours ago
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Solis AC-coupled 3kW storage inverter
Solis AC-coupled 3kW storage inverterPylontech batterie...
By MartinRobinson , 1 day ago
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RE: My NIBE ASHP Nightmare: No Commissioning, High Bills and a Hostile Installer
As @transparent has observed above, this is not bad, an...
By cathodeRay , 1 day ago
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RE: The Grid Says Yes.. Until It Doesn’t: Why Britain's Net Zero Push is Stalling at the Plug Socket
As I was reading this article Mars, I was thinking that...
By Toodles , 2 days ago
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RE: Tell us about your Solar (PV) setup
Installed in May 2011: 16*Sharp 245 W monocrystalline p...
By txmartyn , 2 days ago
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RE: Say hello and introduce yourself
That doesn't sound 'right' to me. The national Smart ...
By Transparent , 3 days ago
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RE: Growatt battery disconnected
I doubt this will happen, but I will try and suggest it...
By Eliuccio , 3 days ago
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Understood. That's why I decided from the outset on a ...
By JamesPa , 4 days ago
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RE: My experience with 3 heat pump surveys: Heat Geek, British Gas & Octopus
On the litigation, I would not go there and definitely ...
By Batpred , 4 days ago
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RE: Recommended home battery inverters + regulatory matters - help requested
I suppose if your pv inverter packs up, you have a plan...
By Batpred , 4 days ago
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RE: New Vaillant aroTherm Plus in black - When will it come to the UK?
Firstly check you are using sound power not sound press...
By JamesPa , 4 days ago
