Venting

4"x7" Horizontal Venting List used on old Majestic and Vermont Castings heating units. Venting Options  

4"x7" Vertical Venting List used on old Majestic and Vermont Castings heating units. Venting Options  

4' [48"] Flex Vent Kit with Cap [includes #800-WPT3] for Kozy heating units.   Genuine OEM part

4' Flex Vent Kit [Includes #700-WPT] for Kozy heating units.   Genuine OEM part

4RV-WS/B is a 4' Wall Support/Band Assembly for 4" RV Round, Galvanized Selkirk Metalbestos Gas Vent. Model RV features Lock-Tab locking system which provides 360 degree flexibility while maintaining security. Aluminum inner liner and galvanized outer...

4'' Oval 12" Length - 4" Diameter - Ridge Pipe B-Vent Gas Vent Chimney, Duravent.   Oval Gas Vent Instructions Chimney Venting Sizing Handbook

4'' Oval 6" Length - 4" Diameter - B-Vent Gas Vent Chimney, Duravent. Model OV is an oval Type B Gas Vent that provides the venting capacity equivalent to round Type B Gas Vent. Available in 4"- 6" diameters Aluminum inner liner Galvanized outer wall...

4'' Oval 6" Length - 4" Diameter - Ridge Pipe B-Vent Gas Vent Chimney, Duravent.   Oval Gas Vent Instructions Chimney Venting Sizing Handbook

4'' Oval Adjustable 12" Length - 4" Diameter - B-Vent Gas Vent Chimney, Duravent. Model OV is an oval Type B Gas Vent that provides the venting capacity equivalent to round Type B Gas Vent. Available in 4"- 6" diameters Aluminum inner liner Galvanized...

4'' Oval Adjustable 12" Length - 4" Diameter - Ridge Pipe B-Vent Gas Vent Chimney, Duravent.   Oval Gas Vent Instructions Chimney Venting Sizing Handbook

4RV-TS is a 4'' Tee for 4" RV Round, Galvanized Selkirk Metalbestos Gas Vent. Model RV features Lock-Tab locking system which provides 360 degree flexibility while maintaining security. Aluminum inner liner and galvanized outer wall heats up quickly to...

National Chimney’s 2-Ply 3003 aluminum liner can be used to vent Category I gas appliances with A.F.U.E. of 83% or lower. In many cases, especially when only water heaters are vented into masonry flues, the gas appliances are vented into oversized...

4.5/7.5" Direct Secure Vent System List goes to IHP gas burning fireplaces. List of Venting  

4/7 Coupler Kit, Napoleon for Napoleon heating units. Genuine OEM part May fit other models, please check your owner's manual for part number compatibility.

4/7 Inner/Outer Sleeve for Napoleon heating units. Genuine OEM part May fit other models, please check your owner's manual for part number compatibility.