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In terms of unobtainable I dont think it is, but the actual costs in regards to getting it and making it right are a lot more than people think. As much as an alternate for boilers I just dont think it is the one and its not just a straight retro fit compared to a boiler.
I haven't done the training yet but have investigated it a lot in terms if its worth doing and right now up here I would say its not.
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it's either going be ASHP, heat networks, or hydrogen retrofit
I'm not convinced by the latter two for different reasons so for me it's a question of when, not if for ASHP. That of course might not change the calculus for whether it's right for you as a professional, though. FWIW I've heard HeatGeek is a very good training course for this stuff.
More widely it's not great for the UK how behind the workforce is on this stuff. I tried to have a discussion with the last two plumber/heat guys we had round about wanting to set my boiler at 50c flow temp now I have large k33 rads installed. They both looked at me funny, but the boiler actually condenses now and runs much more efficiently, and the house still stays warm!
what an odd comment
first - we're in a thread full of high priced reno recommendations.
second - what is obtainable/realistic is a shifting dial, influenced by a range of economic and policy levers. We need to first decide on what is necessary and good (which this undeniably is) and then decide how to get there.
third - i never claimed the way i'm going about this is the best way for most people to do it
fourth - do you pop into someone's 10k superbike build with snide comments about how it's unaffordable for most people?
Do you think ASHP is unobtainable for people here in the UK but seemingly fine for people in others countries like Italy or Lithuania? Or is it just the way I've gone about using an architect, etc?