@lennyvalentino @willydunn I don't know how they came to 10p boil - when I worked it out earlier this year it was around a penny a boil - https://www.bentasker.co.uk/posts/blog/house-stuff/how-much-more-energy-efficient-is-refilling-the-kettle-than-reboiling-it.html Prices are gonna be about double, so 2p/boil sounds about right.