Guy King wrote:

The message
from John Rumm contains these words:


Don't think it makes much difference does it? The static pressure seen
by the boiler may be less by about 0.3 bar or so. The total length of
pipe from mains to tap is much the same and the sizes of pipe also the
same.


May well be quite a few elbows though - they slow the flow down quite a bit.

Well I assume you will have much the same pipe layout wherever you place
the combi, be it near to the start in the kitchen, or near the tap in
the bathroom. The total quantity of piping, bends etc will be about the
same, so the total flow resistance ought to be the same.

If the flow is marginal then it is worth using swept bends and bigger pipe.

--
Cheers,

John.

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