Liner adaptor for chimney

A chimney liner adaptor that permits air flow between a chimney annulus and the outside environment, said adaptor comprising:

• a first perforated disc in a first plane having an aperture, said aperture adapted to receive a chimney liner and having a diameter larger than a diameter of said liner and smaller than a diameter of an inner wall of said chimney;
• and
• a second disc having a second aperture and a flange, said second disc being disposed above and substantially parallel to said first plane, said second disc being connected to said first disc, the diameter of said first aperture being substantially equal to the diameter of said second aperture, said flange extending from the interior diameter of said second disc and being substantially perpendicular to said first plane, said flange projecting away the top surface from said second disc;
• and
• wherein said second disc is adapted to be disposed above the chimney annulus, and said first and second apertures are adapted to receive said chimney liner.

A chimney system, comprising:

• a liner for lining a flue;
• and
• a liner adaptor comprising:
• a perforated disc for allowing gas to flow into and/or out of said flue, said perforated disc being located in a first plane, said perforated disc having a first aperture, said aperture having a diameter larger than a diameter of said liner and smaller than a diameter of an inner wall of a chimney;
• and
• a non-perforated disc having a second aperture and a flange, said non-perforated disc being disposed above and substantially parallel to said first plane, said non-perforated disc being connected to said perforated disc, the diameter of said first aperture being substantially equal to the diameter of said second aperture, said flange extending from the interior diameter of said second disc and being substantially perpendicular to said first plane, said flange projecting away from the top surface of said second disc;
• and
• wherein said first and second apertures are adapted to receive said chimney liner.