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electronic dampers

  1. 2 zones on Trane XE80

    HVAC
    Im planning to install a 2 zone setup for my basement and 1st floor. I have 6 ducts opening to basement and 6 opening to 1st floor do i need to buy 6 electronic dampers or 12 electronic dampers ? trying to keep the costs low since these things are EXPENSIVE Can you give me some guidance...
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