Owners Manual
Page 22
... four inches (10.2 cm) in diameter with no obstructions. To reduce the risk of the exhaust system. The exhaust duct must have a weather hood with hinged dampers to use . 2. Do not use sheet metal screws on exhaust pipe joints or other fastening means which extend into an enclosed and unventilated area...
... four inches (10.2 cm) in diameter with no obstructions. To reduce the risk of the exhaust system. The exhaust duct must have a weather hood with hinged dampers to use . 2. Do not use sheet metal screws on exhaust pipe joints or other fastening means which extend into an enclosed and unventilated area...