"Doctor Drivel" wrote in message
eenews.net...

Alas one of the major drawbacks of many combis is finally revealed.
Many combis just arent up to the job of supplying two taps at once
with decent flow rate. As others have stated, check if the mixer vavle
is thermostatic,if not then fit a thermostatic mixer,thats about all
you can do apart from fitting a water storage cylinger to ensure a
decent bulk hot water supply.

Bzzzt Wrong. A higher flowrate combi would solve it too.

It's my understanding that Combi's can only ever supply hot water at the
maximum flow rate of the mains supply. Which I think mine certainly can. So
putting a higher flowrate boiler on wouldn't necessarily help