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Thread: venting systems

  1. #1
    Join Date
    Feb 2007
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    venting systems

    Can a category 1 fan assisted unit heater be vented horizontally with B-vent?
    Because as far as i know a cat 1 fan assist vents by boyancy and the fan is just for bringing in combustion air and has no positive push on the flue gasses. So if there is no vertical vent how will it vent properly?

  2. #2
    Join Date
    Mar 2006
    mt,clemens mi,
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    International fuel gas code section 503 venting of equipment

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