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    mardigx's Avatar
    mardigx Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Jan 28, 2010, 04:46 PM
    longest run 1/2'' pex tubing
    I am heating 5000 sq' @ 12''centers, open space- 50''x 100 - what is the longest run 1/2'' can handle? - martin
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Jan 28, 2010, 06:11 PM
    It is not how much 1/2 can handle but how much your pump can handle. Now I would never run 500 foot of anything in one zone and I am sure you will break into much smaller zones since at that point your pump problem will go away.
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