Napoleon GDS20NSB Arlington

Horizontal runs may have a 0” rise per foot or 0mm rise per meter however for optimum performance it is recommended

that all horizontal runs have a minimum 1/4” rise per foot or 21mm rise per meter using fl exible venting. For safe and proper

operation of the appliance, follow the venting instructions exactly.

A terminal shall not terminate directly above a sidewalk or paved driveway which is located between two single family dwellings

and serves both dwellings. Local codes or regulations may require different clearances.

Do not allow the inside liner to bunch up on horizontal or vertical runs and elbows. Keep it pulled tight. A 1¼” (31.8mm) air gap

all around between the inner liner and outer liner is required for safe operation.