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Last seen: Jun 26, 2026
@morgan that one has me scratching my head. First heard of this scheme on the Martin Lewis programme. Until late October I was off mains gas with heat...
Hi @Denevil, OK, the low rate overnight tariff is a good reason to generate HW overnight, if not the most thermally advantageous time. Defrosts are an...
Hi @Denevil, just reading this, I'm probably a month or so further on my Grant ASHP system journey, 10kW Aerona3 and 150m2 EPC C house. It's a learnin...
@marvinator80 for internal pipework, yes. for external, no. Needs to be thicker wall, minimum 19mm (3/4") and weather/water and UV resistant skin. Som...
We get very cold weeks like this 4-6 weeks of the year. When I first started researching ASHP, I realised it would be more expensive than kerosene, my...
Quite a bit of coverage over on LinkedIn about this one. And so the race to the bottom begins. Price driven installs seldom hit the required quality a...
@tim441 this is really useful info and a great find. Your experience of converting from oil to ASHP mirrors mine. I'm only 3 months into the journey h...
@derek-m Grant UK in my case. By their own admission, they 'make it easy' for tradesmen used to fitting gas boilers to fit ASHPs. But that does not ma...
Maybe a bit of wear and tear? Bleed the system of air, it's not something you want in the system. I have one TRV that quietly 'sings' when it modulate...
@abernyte "If it is the manufacturers agents then at least you know it was correctly installed and setup." - you would hope so, but... We've seen mu...
Wow! ASHPs need to deliver more flow than conventional fired boiler heating systems, as they operate a much lower delta T supply and return temperatur...
Hi @kitkad, I have a Grant Aerona 10kW installed since Oct last year. It struggled a little in the December cold snap, mainly due to the time it was s...
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