Go for a Bosch mate thats all we fit at the Mo

if you oni have the one bathroom a 28SI/CDI would prob be the best bet

Altho halsted boilers are VERY good value at the minute and come with a free remote clock etc, you are looking at about £700 is for a decnt boiler (not fitted)

The size of the boiler goes on your hot water demand to a greater extent, Its all about the LPM