In article
,
jgharston wrote:
Grrr. This is why I prefer proper stored hot water systems...

My shower has a mira Discovery thermostatic mixer, one of
these: http://goo.gl/0n7g

Try as I might I can't actually get the hot water to be hot.
With the temperature control turned all the way to "hot" it
just runs tepid, I end up shivering when trying to have a
shower. Following the instructions I've turned the internal
temperature control adjuster within the green temperture hub,
I've ended up turning it so far the worm scren is starting to
poke out of the hub, yet it *STILL* runs cold.

It seems to be designed for either low or high pressure systems. Assuming
yours is high pressure being a combi perhaps the cold flow is too great
for the mixer to compensate for? You could prove that quite easily by
cutting it down on the main stop cock.

--
*Why do we say something is out of whack? What is a whack?

Dave Plowman London SW
To e-mail, change noise into sound.