That is very much how I am understanding it. It is advantageous to to have equal and adequate flow around the circulation loop. Which for the ones I looked over where scaled for systems far larger and more zones than what I will be using. I guess my main concern is that If I build a 1" circulation loop(pump, manifold, etc.) for just a two loop, one zone application that it won't be causing a problem if it is over sized. The small size of the circ. system will not be cost effected that much by being 1" over 3/4" connection copper(as I have both free, fittings will be a small extra on 1"). Still researching some pump suggestions Mike has given me so unsure yet what size connection they need.
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