Bradykelly

Therefore it is vital that the boiler is serviced regularly on an annual foundation. With fashionable boilers, there are numerous working parts, each mechanical and electrical, which means there’s doubtlessly so much to go wrong!

Although 16p doesn't sound like a lot, when you multiply it by a number of hours, 7 days every week, and a dozen winter weeks later, you will end up wasting a substantial sum.