Hi all,
It's coming closer to the time to choose and I haven't visited this thread for a while (I stopped receiving notifications of new posts).
Thank you for all your input and info.
I'm certainly not going for a Glow-worm. My existing one has given me trouble from year-2, and I didn't skimp when I plumped for it back then. It has constantly leaked and caused corrosion. British Gas have attended to the problem after a fashion. They never really targeted the root of the problem (what ever that may be) and so never really solved it. Now it's beyond hope.
It looks like Worcester, Vaillant and Baxi are the contenders. Vaillant have ethics issues, so I may avoid their boilers.
Cheers.