Cross compatible adapter for chimney sections with different outer diameters

An adapter system configured to connect a female end of a first chimney portion to a male end of a second chimney portion, the adapter system comprising:

• an adapter, wherein the adapter comprises:
• a first radial adapter portion with a first inner surface and a first outer surface extending along a first axis and, wherein the first inner surface and the first outer surface are substantially coaxial;
• a first locking interface protruding outward from the first outer surface and configured to engage with a first locking interface of the first chimney portion;
• a second locking interface protruding inward from the first inner surface and configured to engage with a second interlocking interface of the second chimney portion,
• wherein the first outer surface is configured to be received within the female end of the first chimney portion and the first inner surface is configured to receive the male end of the second chimney portion, wherein the adapter system further comprises:
• an inner sleeve configured to fit within the adapter, the first chimney portion, and the second chimney portion;
• and
• a clamping ring configured to interface with and hold together a first chimney portion flange of the first chimney and a second chimney portion flange of the second chimney portion.

An adapter configured to connect a female end of a first chimney portion to a male end of a second chimney portion, the adapter comprising:

• a first adapter portion with a first annular inner surface and a first annular outer surface extending along a first axis;
• a first locking interface protruding outward from the first annular outer surface and configured to engage with a first locking interface of the first chimney portion;
• a second locking interface protruding inward from the first annular inner surface and configured to engage with a second interlocking interface of the second chimney portion, wherein the first annular outer surface is configured to be received within the female end of the first chimney portion and the first annular inner surface is configured to receive the male end of the second chimney portion,
• wherein the second locking interface of the adapter is configured to engage with a second locking interface of the second chimney portion when male end of the second chimney portion is oriented to a position within the adapter and one of the second chimney portion and the adapter is rotated with respect to the other of the second chimney portion and the adapter.