Metal-Fab 4 Inch to 8 Inch Type B Round Chimney Pipe Increaser
Metal-Fab 4 Inch to 8 Inch Type B Round Chimney Pipe Increaser
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Contractor / Technical Details
Vent Type
B-Vent
UL Listing
UL441
Pipe Shape
Round
Telescoping
No
Adjustable
No
Number of Walls
2
Material
Galvanized Steel; Aluminum;
Painted
No
Frequently Purchased Together
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Features
- Allows connection of 4" and 8" pipe
- .018" galvanized steel outer wall and aluminum alloy inner wall
- Double-wall design allows a 1" clearance to combustibles
- For use with Metal-Fab Type B Round Chimney Pipe
- Secure locking system requires no tools
- Hemmed flue and casing eliminate sharp edges
- 4" end is compatible with other brands of UL Listed round gas vent pipe (see list below)
- Listed to UL 441
- Limited one-year warranty
- Small End: 4" Dia.
- Large End: 8" Dia.
- Height: 8.5"
- 3" to 6" pipe sizes are compatible with the following brands of Type B gas vent pipe
- General Products Co. - Airjet
- American Metal Products Co. - Amerivent
- Hart & Cooley - Metlvent
- Household Manufacturing Inc. - Metalbestos and Airmate
- Mitchell Metal Products Inc. - Mitchvent
- Selkirk Metalbestos - Metalbestos
- Simpson Dura-Vent Inc. - DuraVent
- ECCO Heating Products - ECCO Manufacturing
Contractor / Technical Details
Product Details
Vent Type
B-Vent
UL Listing
UL441
Pipe Shape
Round
Telescoping
No
Adjustable
No
Number of Walls
2
Material
Galvanized Steel; Aluminum;
Painted
No
Adapter Needed
No
Support Included
No
Rigid Compatibility
No
Includes Trim
No
Includes Insulation Shield
No
Is Firestop
No
Includes Adapter
No
Includes Cap
No
Vented
No
Firestop Required
No
Air Intake
No
Dimensions / Measurements
Lower Vent Size
4 inches
Upper Vent Size
8 inches
Min Effective Length
6 inches
Max Effective Length
6 inches
Required Clearance
1 inches
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