Round B-Vent Chimney Systems
- For category I gas appliances and fireplaces
- Engineered for safety and efficiency
- Hemmed flue and casing
- SureLock locking system with
no sheet metal screws required - Zero height increaser design
- Positive twist-lock connection is UL listed to adapt to identified competing B-vent brands
- Swivel tees and wyes have a 360? rotating male connection for easy installation
- 45?/60? Adjustable elbows have a 360? rotating collar and a 4-piece design
- UL 441 Listed
4" Round B-Vent
- 1" Minimum clearance to combustibles
- 0.018" Thick G-90 galvanized steel outer wall
- 0.012" Thick aluminum alloy inner wall
- 1/4" Thick integral, annular insulating air space
,