Thanks for your response Dave. It's definately standard and unvented, not sure about the indirect part...
I presume I'd need a Santon electrical bod to sort that out? do you know if it can be looked at without taking it all out of situ?
Cheers,
Pete
Hi,
I have a Santon Premier tp150b tank which has been installed for 9 years. It worked well for about the first 2 years and still works well when asked to heat the central heating and hot water together.
However it doesn't heat water whilst on the hot water only cycle. Over the years...