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  1. #1
    Join Date
    Jan 2004
    Location
    Pilot Hill,California
    Posts
    86
    Have a Lennox G16 that always plugs the pressure switch orface/opening on the inducer housing with white hard substance.The flu was 3' out for about 3' then elbow over and up to 5' throught the roof.About 10'vert rize( 5' pipe) and 18" horizontail,and 3' vertical(3" flu). Now flu is all 3".Blower on low,gas pressure 3.5"w/c.and yes the inducer motor is new(it had electrical failer)
    Any ideas
    Thanks

  2. #2
    Join Date
    Mar 2005
    Location
    Suppy NC
    Posts
    4,510
    is the chineny 2ft above the nearest ten foot plane of the roof
    even with induced draft if not the wind can blow down the chimeny slightly and cool of the gas and cause exssive condensation in the flue

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