"duncan" wrote in message
...

Andy - I've sent away for that book so will take a few evenings reading
that.

A waist of time for a DIYer doing a one-off.

With combis its even more important to
get the piping sizes correct and
design right to prevent hot water not
feeding enough sources (kitchen,
shower etc.)

The hot and cold water pipes must be sized right, but that is ballpark

It is still bothering me that having
two showers in use in the morning is
still gonna be a problem with a combi.
Plus the missus likes a bath and not sure
that she has the patients to wait for it.

More old wives tales again. There are high flow combi's around that will do
two showers and fill a bath pronto.

Thermal stores - any suggestions on them please.

Go Heat bank not a thermal store. There is a difference
http://www.heatweb.com

"Integrated" heat banks are available that are pretty idiot proof. They
come complete with all controls, pumps, etc. You mount your boiler, connect
up the boiler flow and return pipes to the heat bank, connect up the flow
and return of the rad circuit from the heat bank, supply power to the heat
bank control box, run a wire to the room stat, run a wire to the boiler and
connect up the cold mains and hot water draw-off pipes. Simple, and a state
of the art solution.

More expensive, but as you are doing it yourself a hell of a lot cheaper
than getting a professional in.



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