fatgeezer wrote:

Our hot water is not very hot. We have a gravity system which has been
in place for a couple of years. There is a programme clock which
switches both water and heating. This works. The heating works fine.
The water is hand hot, I have two thermostatic valves that switch on
the Hot pipe and Central heating. I turned up the thermostat that just
sits on the outside of the ho****er tank. Nothing changed. So I
replaced this thermostat. Nothing changed.
Any ideas welcome.......

Is this a fully pumped system (with a mid position valve or diverter
valve for example)? Or does it rely on convection for the hot water side
of things?

more detail he

http://www.diyfaq.org.uk/plumbing/pl...ge2.html#types



--
Cheers,

John.

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