Hi I have a Chaffoteaux Britony 11T gas water heater, approx. 15years old, which has suddenly decided not to heat the water efficiently...it is about tepid now. Prior to that it was hand hot... before that you needed to mix cold water
in to insure against scalding.
I have inspected the gas jet hole, which seems ok.
I've just checked the water govenor, which seemed clean enough.
Can anyone let me know what else could be wrong with it, and how I could do the repairs?
Les Clark, February 2012