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Posted by Alan on December 11, 2006 at 23:25:54:
Is there a rule or guide as to how the difference in Supply/Return water temp. on a boiler should be at? The difference on mine seems to be always 50F or more. Does it sound normal? or my system need more circulators?
My system has 6 zones and a DHW and all I have is the one boiler's own Taco 007 circulator. Moreover, the recovery rate for my DHW is really bad........
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