All of them are good until they break down...
I have seen trade talk on the web about the merits of various boilers and I do remember seeing quite positive things about Worcester.
You can get efficiency figures for most boilers from this site...
http://www.homeheatingguide.co.uk/efficiency-tables.php
Some people (me included) do not like combination boilers because they deny you the advantage of a heated airing cupboard and the emergency back-up of an immersion heater - bath filling is alleged to take much longer with a combi particularly in winter. Combis do have some advantages and there's a disscussion here...
http://www.diyfaq.org.uk/plumbing/combi.html
Good luck...
Peccavi, June 2009
