Cross compatible adapter for chimney sections with common outer diameters

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

• an adapter comprising:
• 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 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 radial adapter portion with a second inner surface and a second outer surface extending along the first axis, wherein the second inner surface and the second outer surface are coaxial;
• a second locking interface protruding inward from the second inner surface and configured to engage with a second interlocking interface of the second chimney, wherein the first outer surface is configured to be received within the female end of the first chimney portion and the second inner surface is configured to receive the male end of the second chimney, 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.