Last seen: Oct 31, 2025
How big is your proposed solar array? I have 7.2kWp array and a 5kW export limit, and it's not overly limiting with a bit of careful battery managem...
I'll go with the standard grey open cell foam insulation you see indoors (as it's protected from UV), with the normal 45deg cut corners. Surely they c...
For our usage, I estimate I may save around £12 during the winter months for Fixed Cosy vs the Cosy Oct 2025 pricing, so not enough of a saving to cov...
You are correct that the Samsung docs recommend a minimum system volume of 50L, but note the key word there is minimum. In reality, the system volume ...
Interesting, but IOF is so much better for us in summer, I will need to calculate if the saving would offset the £25 early exit fee to switch in sprin...
Our region has increased to 14.794p which is a 14.6% increase, notified in a letter from Octopus that states "Energy prices will rise 1-2% for most ho...
Agreed, and I'm in no way trying to defend poor system design or the use of buffers, just trying to rationalise why some installers choose to use buff...
3: For retrofits, installers have no clue what existing pipework they are working with, what flow restrictions they may encounter and what head pressu...
MCS SCOP 3.84 (design LWT of 47C) Actual real world SCOP 3.75 (running LWTs of 32-35C) So despite running significantly lower LWTs, real world SCO...
I think you need to be sure you are comparing like for like. It is true that you can buy a Fogstar 16kWh battery for around £1750 whilst a comparabl...
Having had a chance to test this now, I can confirm that my Tesla Powerwall 3, whose spec sheet states to be able to supply 185 LRA, is able to supply...
We are lucky enough to have space in both our bathrooms to accommodate a conventional K2 radiator to heat the room and a towel radiator for drying tow...
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                          RE: Mediation with RECC, what's your experience? Welcome to the forums @treewizard and sorry to hear abo... By Mars , 28 minutes ago 
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                        RE: Help me keep the faith with my air source heat pump installation @jamespa ive had a look at the firmware card in the add... By AdamK , 32 minutes ago 
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                          RE: New build installation query That accounts for why you start with an overly-high DHW... By Transparent , 44 minutes ago 
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                        UFH downstairs and radiators upstairs balancing question I am running pure WC on .4 curve in our new build with ... By Walnut-tree-cottage , 1 hour ago 
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                        RE: Daikin Altherma 3 / HomeAssistant I would have thought that (instantaneous) power is a fa... By JamesPa , 2 hours ago 
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                          RE: Buying large amp bidirectional RCD and RCBO It's the requirement to have 100mA earth-leakage trippi... By Transparent , 3 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 , 4 hours ago 
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                        When to use Octopus Intelligent Go tariff with my heat pump and battery I have underfloor heating with 15 room thermostats thro... By ChrisH , 4 hours ago 
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                        RE: Midea ASHP – how to set weather compensation @cathoderay comments duly noted. I don't disagree with ... By pash44pump , 8 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 , 16 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 , 16 hours ago 
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                          RE: Who has a V2G EV installation Perfect, @agentgeorge. I’m always up for some edificati... By Majordennisbloodnok , 16 hours 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 , 17 hours 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 , 17 hours ago 
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                          RE: Radiator Sizing Dilemma: Vertical vs Type 33 for Low-Temperature Heat Pump Systems That's my main concern too. On top of that, I ... By DREI , 19 hours ago 
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                        RE: Grant 13kW Aerona3 - issues getting zones to temp Thanks, patience is something I’m trying to ma... By Crimson , 21 hours ago 
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                        RE: Solar Power Output – Let’s Compare Generation Figures 2025 - now a record year of Solar PV Generation. Octobe... By AllyFish , 1 day ago 
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                        RE: Mitsubishi Ecodan R290 10kW performance Totally agree that any system is reliant on the ability... By Sheriff Fatman , 1 day ago 


 
                                 
                                 
                                 
                                 
                                
