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I am looking at creating more space in our bathroom so the space taken up by an airing cupboard has come under scrutiny. Currently, all of our household hotwater comes from an indiect vented "Economy 7 " cylinder with two immersion heaters. Therre is no gas in the village. A small additional boost is given from an internal copper coil fed by a copper "boiler" in our multifuel stove. The dimensions of the boiler are approximately 300mm x 150mm x 25mm. It has its own FE supply. The world has moved on since I installed all of this 35 years ago! Poking around on the internet, I have come accross tankless/instant water heaters and thought that they would be worth having a look at. The airing cupboard and cylinder would go and be replaced by some more modern water heating system. The things that I am looking at are as follows. Are the instant water heaters more efficient than the system that I have at present? Do I supply an instant system from my loft FE supply, currently conected to my immersion cylinder or is it a rising main that would do this job? Would all of the instant hot water come from one heatingappliance or would I be better of finding the approriate instant heaters for each outlet such as a bath, shower, hand basin, kitchen sink etc? I have seen some very neat appliances that fit under a bathroom hand basin. The house has three bedrooms, one bathroom and currently three occupants. Any reccomendations, experience or advice would be welcome.

This story seems to come up every so often, regarding people with electric boilers and massive electricity bills. https://www.thisismoney.co.uk/money/bills/article-7966625/The-eco-boilers-cost-5K-year-green-energy-deal-gone-wrong.html It allows the Daily Mail to pander to their older readers who believe everything new is bad. Reading this story though, I couldn't help but wonder did Falkirk Council deliberately install boilers that would be very expensive to run as I suspect installing electric boilers was a lot cheaper for them than installing gas boilers and the running costs weren't their problem. It is now exacerbated by people being locked into some very expensive electricity pricing, but anyone who knows the price of electricity versus gas knows that this would create a massive increase in heating costs. The story keeps calling them eco boilers. In no way should an electric combi be called an eco boiler, clearly people have no idea of the difference between these and ASHPs. The DM then have a further story today about banning every new home being connected to the gas grid, that ASHPs will cost £10k to fit and that they won't work in older poorly insulated houses. Assuming that gas boilers are eventually banned, then over time they can be replaced with ASHPs, however, I was thinking is this as simple as it seems? Even relatively modern houses will have heating systems designed to use 75C hot water from a gas boiler. Is the replacement of boilers as simple as it seems?