Oil boiler heating radiators but not hot water tank
Posted by Sebastian San Martin, on
I have a Worcester oil boiler (quite old but described as working well at last annual service) which heats radiators and hot water tank. Recently the hot water is not reaching its usual temperature (but hot water works fine when I use the electric immersion heater on the tank). Is this a problem with the boiler or the tank, and do I need a plumber or a heating engineer? Thanks