Originally Posted by A_P
2 showers? I am pretty sure you would need a condensing boiler.
If at not at the very least you will need a hot water tank in an airing cupboard and a cold water tank in the loft mate. Basically a gravity fed system.
All boilers now are condensing AFAIK.
Yeah, a tank would be better I agree, but there won't be any room for a tank to be installed once we get our loft converted, and also the cost to install would be too much for us.
Regarding the max flow rate of the combi boiler - I guess I would need to check as to whether my mains pressure is up to max that the boiler can cope with - if not, perhaps a pump could bridge the gap?