Dave Plowman (News) wrote:
In article ,
The Natural Philosopher wrote:
I don't follow you, sweetheart. We had low pressure at all the hot
taps, good pressure on the cold. After adjustment of the diaphragm
thingie on the hw cylinder inlet, we now have good pressure on all hot
taps. OK darling?

combis dont have hot water tanks

I'm amazed dribble hasn't been here yet. ;-)

Don't some store a small amount of hot water to get over the initial wait
from those without?

No reason why you couldn't heat a cylinder from a combi. And keep the
'instant' feature for the kitchen tap.

No reason why you would install a combi with hot water storage.

The reason combis exist, is that the cost of a combi is less than a
conventional lower powered boiler plus hot water tank, plus shower pump
plus header tank.

Or less than a conenvtional boiler plus mains pressure tank.

Once you start adding heat banks or a cylinder to a combi, to make it
work better, the cost then exceeds a conventional boiler and mains
pressure tank.