efficient combi with good dhw flow rates?

[Chan1]

I have received both positive and negative comments about alpha boilers, but at the moment I am not aware of a product that gives equivalent performance as the alpha flow smart package, in terms of combining both energy efficiency (sedbuk A plus gas saver) and performance (18l/min dhw).

Can anyone suggest another alternative approach that would rival this (or be not too far from it)?

thanks

 

[simond]

Vaillant 937
Worcester Highflow 440 Cdi
Worcester Highflow 550 Cdi
ACV Heatmaster 35TC

And those Italian boilers Dr Drivel goes on about - Atmos. There are others. We only fit the first four.

Gas Saver is not available on most boilers, it has been around a couple of years and if you massage the figures it can look quite impressive. If you massage them another way it doesn't. Alpha are a small scale reseller (it is an Italian product) in the UK and offer a lot of add-ons to give a kind of USP.

Not convinced myself.