Z-Flex 5" x 4' 304 Stainless Steel Rigid All Fuel Liner l23.5 Item Number 20BVF Series Round

Item Number 20BVF Series Round Type B Gas Vent Model BV (3" - 30") Product Type Adjustable Roof Flashing Size (Diameter) 20" A 34" B 34" Technical Dimensions

Nothing else like it on earth

The transformer you need depends on the number of heaters installed

This optional wall mount arm kit can extend your bracket 30" from the mounting surface

Combustible Side Wall Placement for HVF-36 and HVF-42  Combustible Side Wall Installation for HVF-42 Guideline Dimension for Corner Application HVF-42 Warranty

Z-Flex 5" x 4' 304 Stainless Steel Rigid All Fuel Liner l23.5 Item Number 20BVF Series RoundFusion welded pipe seam for smoother finish and better fit.