Gravity hot water central heating system
Posted by Barny sivyer on September 26, 1999 at 05:18:14:
Hi terry,

I have recrently replaced my direct hot water cylinder with a indirect cylinder and re-made all the pipe connections to allow for a expansion tank and overflow pipe. The problem is the gravity hot water no longer reaches the tank from the boiler even though the pipe is 28mm?
PS
Can I add an additional pump on the return to boost the flow.

Ta


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