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Old 07-05-13, 01:17 PM   #34
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Join Date: Jun 2011
Location: Ottawa, Ontario, Canada
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There's probably more restriction in take-up pipe and pump to hxr than whole of hxr. Our Trane 24000 BTU/hr unit has 3/4" inlet/outlet that reduce to the similar hxr with 5/8" water connections. The Trane application charts state between 4-7 feet of head thru unit for flow rates of 3.5 - 5.0 GPM. No worries there. Scaling, mineral deposits and bayou crud may prove problematic over long run.
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