and is not pressurised at the moment although I would now like to convert it over and fit a filling loop. It has an expansion vessil and pressure gauge although was installed with an F and E tank in the attic which we now need to remove for a loft conversion.

Gregg, January 2011

Great thanks for the advice. I've now worked out why it was installed with the F&E tank. The boiler is in the centre of the house with a conventional flue and there was no where to discharge a pressure relief, which I'll now obviously require. I'll have to rethink my plans.
Thanks for the advice again
Gregg

Gregg, January 2011

Most boilers can be pressurised. Simple as capping off the cold feed and expansion pipes to the F&E tank, and fitting a filling loop in the system, if the boiler already has an expansion vessel, it's already designed to be pressurised, job done

Carefree, January 2011

as far as i know the boilers are the same but i would phone worcester technical helpline to be on the safe side

brian, January 2011