Hi,
can you explain the concept and logic behind fixing of fixed (zero expansion)point in top supported boilers,how to find out it.is there any calculation for that?
Put a few changes of direction in the pipework and there will be no need to calculate it, for the changes in direction will take up any movement due to expansion.
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The elephant is a funny bird. It flits from bough to bough. It lays its eggs in a rhubarb tree and whistles, like a cow - Spike Milligan.