15-01-2014, 07:12 PM
(15-01-2014, 06:46 PM)Dum-Dum Wrote: I would of thought that as the rad has a top pipe and a bottom pipe then for the best efficiency the top pipe should be the inlet for hot water and the bottom should be outlet for cold (and back round to the water pump) as heat rises
Rad? He asked about the matrix...
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