At the risk of kicking off yet another combi thread...

I'm very confused by the plethora of different W-B condensing boilers on
offer, and what the difference is between them. Trogging through the
blurb on the mfr's website is like a game of 'spot the difference' - I
don't know why they can't publish a straightforward comparison table.

There seems to be:
Greenstar CDi (25CDi, 30CDi, 35CDi, 40CDi)
Greenstar Si (25Si, 30Si)
Greenstar Junior (24i junior, 28i junior)
HE Combi (25 HE, 30 HE)
HE Plus Combi (30 HE Plus, 35 HE Plus, 40 HE Plus)

CDi and Si seem to be comparably priced; with the Junior and HE a fair
bit cheaper. As I reckon I want about 28kW, I'm apparently in the
market for any of the above AFAICS? Anyone done the research and care
to enlighten me?!

Thanks
David