Originally posted by mattster
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A load of hot air?
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Originally posted by ns1 View Post
If I was going all-electric, I'd rather get away from a plumbed system with boiler and radiators. It has always struck me as a bit dumb circulating hot water in a house for heating. There is far less to go wrong with individual electric heaters and an immersion heater for hot water.
I also wonder how a Tado type system would work with electric heaters?Comment
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Originally posted by d000hg View Post
I thought a GSHP required a big machine like used in pilings... they go 100 feet or more into the ground so it's not just a digger making a hole.Comment
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Originally posted by ns1 View Post
If I was going all-electric, I'd rather get away from a plumbed system with boiler and radiators. It has always struck me as a bit dumb circulating hot water in a house for heating. There is far less to go wrong with individual electric heaters and an immersion heater for hot water.
We've got electric underfloor in the bathroom and it's great. I imagine it is every bit as efficient as gas, since turning electric into heat is quite easy I think, but of course electric is 3-6x the cost of gas usually per kwh.Comment
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Originally posted by mattster View Post
Yes, I believe so - one of those giant drill bits? I guess it depends on how long it takes - if you need one of those machines for a week, then there's your £10k I suppose. Just read a bit more about it and no wonder it costs so much - you might end up needing multiple 100m bore holes, 6m apart, 5m from the nearest building and dug by an enormous truck mounted machine that almost certainly won't be able to drive into your garden. Bonkers.…Maybe we ain’t that young anymoreComment
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Originally posted by WTFH View Post
GSHP can go deep or shallow loops at about 1-2 metres below the surface, depends on how much ground you have.
e.g.
https://www.kensaheatpumps.com/slinky-pipes/
Originally posted by MaryPoppinsI'd still not breastfeed a naziOriginally posted by vetranUrine is quite nourishingComment
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Originally posted by mattster View Post
There are electric boilers now with nearly 100% efficiency (equivalent to gas), that can be dropped into existing systems as a direct replacement for gas boilers.- Electricity is historically 3-4X as expensive as electricity... current crisis aside that is
- Gas boilers might be running in the 20-30kW range, GCSE physics tells us that's going to draw 80-125 Amps. This is right at the limit that a domestic electricity supply is rated for, we recently had our old one (40A) updated and they put in an 80A fuse/breaker.
Originally posted by MaryPoppinsI'd still not breastfeed a naziOriginally posted by vetranUrine is quite nourishingComment
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Originally posted by mattster View Post
Agreed, although if you can swap just one component and already have the rest then that probably makes more sense.
We've got electric underfloor in the bathroom and it's great. I imagine it is every bit as efficient as gas, since turning electric into heat is quite easy I think, but of course electric is 3-6x the cost of gas usually per kwh.
Perhaps we need home sized nuclear fusion reactorsComment
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Originally posted by d000hg View PostIndeed there are but a couple of issues:- Electricity is historically 3-4X as expensive as electricity... current crisis aside that is
- Gas boilers might be running in the 20-30kW range, GCSE physics tells us that's going to draw 80-125 Amps. This is right at the limit that a domestic electricity supply is rated for, we recently had our old one (40A) updated and they put in an 80A fuse/breaker.
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Originally posted by mattster View Post
I think whatever happens going forward, electricity is going to have to get (at least relatively) cheaper, and supplies are going to need upgrading.
Crazy idea, I know, because our economy is reliant on more people consuming more stuff.…Maybe we ain’t that young anymoreComment
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