BDM Dalsin Line Pro-Form 4" x 4" 2PCS 30ft Aluminum Insulated Flex Kit With Chimney Cap glass-burner The founders were Hans Heidolph

The founders were Hans Heidolph Senior

This kit allows for more flexible installation options and can be particularly useful in situations where a horizontal vent is not possible due to space constraints or other limitations

and damper

Siberian 1600

BDM Dalsin Line Pro-Form 4" x 4" 2PCS 30ft Aluminum Insulated Flex Kit With Chimney Cap glass-burner The founders were Hans Heidolph"Dalsin Line" Aluminum Flex Liners are used for venting category 1 heating appliances or direct vent appliances into a masonry chimney. Manufactured using Type 3003 aluminum, this heavy duty 2 ply liner is made from two strips of . 005", high grade aluminum for a total thickness of . 010" What's Included 4" x 4" Insulated Kit Chimney Cap 2Pcs 30ft Aluminum Flex Features Liner is made from 2 ply of . 005 thick type 3003 aluminum strip Components are