Profile: Lindemann Chimney Supply specializes in stainless steel chimney. Our product line includes chimney pipes & liners, dampers, chimney caps, fire place and hearth products. Our galvanized vent connector is re sized to the new appliance configuration. This 26-gauge galvanized vent connector allows you to upgrade the old single-wall vent connector at an economical price. Our exhausto chimney fans are mounted on the top of the ceilings to draw the smoke out. Our Exhausto chimney adapters connects it to a round solid-pack pipe or chimney liner. This round-to-square adapter slips into the pipe.