Napoleon Vent Kit with Double Ply Aluminum Liner-Inlet and Exhaust Size:1-2"/1-3" (25ft) It is recommended however

It is recommended however

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70% overall efficiency rating

Burner kits include: Stainless Steel Firepit Burner

Napoleon Vent Kit with Double Ply Aluminum Liner-Inlet and Exhaust Size:1-2"/1-3" (25ft) It is recommended howeverNapoleon Vent Kit for Direct Vent Gas Inserts (Double ply aluminum, liner inlet and exhaust with reducer) Vent Kit Length: 20ft, 25ft & 35ft For use with Direct Vent Gas Inserts Vent Components Includes: (1) 2 Inch and 3 Inch Double Ply Aluminum Liner Inlet and Exhaust, (2) 3 Inch to 2 Inch Reducers Napoleon Vent Kit for Direct Vent Gas Inserts (Double ply aluminum liner inlet and exhaust) Vent Kit Length: 20ft, 25ft, 35ft & 45ft For use with Direct