Last seen: Oct 31, 2025
Hi @daniel, if you can share some info & answer a few questions I'm sure people will try to help & share experience with Grant installs. 17k...
Hi @ninja-tiger, I think British Gas might be stalling or not wanting to do the install. The job might not be as straightforward as a simple gas boile...
@windsor-tg Sunsynk battery data sheet./p> Seems to indicate no de-rating between 0 and 50degC. 'Operating temperature' might be inside the battery,...
Solar diverter for DHW = free (when surplus solar) * Heat pump for DHW = 200-250% efficient (by far the most efficient electrical method of producin...
That's a tidy install @windsor-tg. Li-ion batteries only tend to de-rate charging capacity below 0degC. How often does your garage get below 0degC? Yo...
Hi @adamm, nothing special, 30mm sealed argon filled PVCu DG units, to front of house 2yrs old, to rear of house 15yrs old, 200mm loft insulation. PVC...
@adamm. MCS energy consumption predictions for my Grant 10kW ASHP were well out for both estimated existing and future. So far out as to be disregarde...
Hi @ =adamm, I am 70 miles south o' the border, in North East England. But converted oil boiler to ASHP a year ago. No regrets, but quite a learning e...
@transparent they are Craig and Derricott EPV252 25A 2 pole rotary isolators. Designed for DC voltage and Solar PV isolation, 25A @ 800V.
@transparent black isolators are DC solar PV isolators, two strings, one 4 panel, one 5 panel. I await the DC MCB from L R Renewables by Mail and a da...
All done now, 13kW storage. But the installer forgot to include a 125A DC MCB to the new battery, so a percentage of the cost withheld and they’re com...
Hi @Tufty Insulation looks adequate, it's a little short on one of the external pipes to the unit, and a little untidy inside, and missing over isolat...
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                        RE: British Gas Heat Pump Installation Complaint By way of update: I have, today, received confirmation ... By BGNO , 14 minutes ago 
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                          RE: Help Stop the MCS Heat Pump Monopoly I must say I'm very disappointed by this decision. I ha... By Mars , 51 minutes ago 
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                        RE: When to use Octopus Intelligent Go tariff with my heat pump and battery Difficult to be completely prescriptive without more de... By JamesPa , 3 hours ago 
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                          RE: Buying large amp bidirectional RCD and RCBO Quite possibly... ... and I've identified two more ab... By Transparent , 3 hours ago 
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                          RE: Solar Power Output – Let’s Compare Generation Figures @allyfish It was going so well with month after month s... By Toodles , 5 hours ago 
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                          RE: Electricity price predictions As that's an energy issue, it would need the DESNZ to p... By Transparent , 5 hours ago 
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                          RE: Flexi-Orb Heat Pump Scheme: A Game-Changer for the UK's Heat Pump Industry Worth noting there’s a parallel discussion about this h... By Majordennisbloodnok , 6 hours ago 
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                        RE: UFH downstairs and radiators upstairs balancing question Have you tried turning up the stat and turning down the... By JamesPa , 6 hours ago 
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                        RE: Help me keep the faith with my air source heat pump installation I have the same firmware. I have MyVaillant version HA... By JamesPa , 6 hours ago 
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                          RE: Midea ASHP – how to set weather compensation @pash44pump - thank you By cathodeRay , 7 hours ago 
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                          RE: Mediation with RECC, what's your experience? Welcome to the forums @treewizard and sorry to hear abo... By Mars , 8 hours ago 
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                          RE: New build installation query That accounts for why you start with an overly-high DHW... By Transparent , 9 hours ago 
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                        RE: Daikin Altherma 3 / HomeAssistant I would have thought that (instantaneous) power is a fa... By JamesPa , 10 hours ago 
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                        RE: Are We Sleepwalking Into Another Race to the Bottom? Alright, I concede that the Toyotas are, as you say a v... By JamesPa , 12 hours ago 
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                        RE: When will fusion be producing energy? From the time I was a physics undergraduate it’s been 2... By Judith , 24 hours ago 
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                        RE: Is it mad to think there should be a minimum SCOP for UK heat pump installs? Sadly I think it is mad. If the BUS is not granted for ... By Judith , 24 hours ago 
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                          RE: Who has a V2G EV installation Perfect, @agentgeorge. I’m always up for some edificati... By Majordennisbloodnok , 1 day ago 
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                        RE: My experience with 3 heat pump surveys: Heat Geek, British Gas & Octopus Yes but... The evidence is that many heat loss survey... By JamesPa , 1 day ago 
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                          What Adam Chapman gets up to in his Spare Time. Ok, so this just appeared on YouTube (don’t blame me th... By Toodles , 1 day ago 


 
                                 
                                 
                                 
                                 
                                