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Venting

Having the correct venting for your heating unit is important for the safety of your family.  Check our our venting options.  Call for additional assistance.

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  • 3" x 25' Aluminum Flex Liner - DB325

    National Chimney
    $113.95
    DB325 is a 3 inch by 25 feet aluminum flex liner that can be attached to an outside air adapter.  Silicone is sold separately - SIL500   Genuine OEM part
    Add to Cart

  • 3" x 35' Aluminum Flex Liner - DB335

    National Chimney
    $159.54
    DB335 is a 3 inch by 35 feet aluminum flex liner that can be attached to an outside air adapter.  Silicone is sold separately - SIL500   Genuine OEM part
    Add to Cart