I’ve got a 3 bed new build house that’s five years old. It’s an ex rented property and as such the previous owner had stupid pay as you go meters installed, which are a total PITA, BUT, they do allow you to see how much juice you use.
Through the winter months it’s been using around about £130 a month in gas and that’s keeping the house around about 18 degrees and using a clever stat it has temperature changes at certain times to warm the house a little more.
Now the temperature has changed the gas is being used less. So I’m thinking about fitting a immersion timer to the Vented tank and using electric to heat the hot water. It only needs to be on an hour a day, so this begs the question, would it be cheaper to have the immersion on for an hour or the boiler heating up hot water and then pumping it around the tank??