On Sun, 12 Nov 2006 19:12:10 -0000, "Andy"
wrote:


"Pete" wrote in message
news
I have one, and I find it quite difficult to get the flow right to
give optimum amount of hot water.

Would it be worth putting an in-line valve on the cold inlet to the
boiler and then adjusting it such that I could set it to the flow
which would be optimum temperature when taps turned on full? ie it
would limit the flow to a max value which would produce hottest water.

If yes - could I adjust by trial and error or could I adjust and set
to a known litres/minute to get the optimum flow. How could I find
out what that optimum flow would be - I guess it would be part of the
spec of the boiler?


Won't work. The groundwater changes temperature over the year by 10C.
Why don't you just adjust the DHW temperature dial on the combi on an
occasional basis - I adjust it every so often during the year on my Vaillant
to keep the water around the 50C mark.

Andy.


But if it was done in the winter then this would be worse case
scenario wouldn't it?