DuraVent Model BV Plain Oval Tee Support: holds the tee centered between wall studs
The DuraVent Model BV Plain Oval Tee Support is a bracket that holds an oval tee in place between wall studs. It mounts on a 2 by 4 nailed between the studs at the height needed for the tee. Choose 4, 5, or 6 inch to match your tee. Model BV is DuraVent’s Type B gas vent, the double wall pipe that carries the exhaust from a gas furnace, boiler, or water heater out of the house. Oval pipe, elbows, tees, and adapters need 1 inch of open air space from anything that can burn, just like round vent. There is one wall exception: 4 or 5 inch oval centered between 2 by 4 studs spaced 16 inches on center, with DuraVent spacers at every ceiling. That space must otherwise be empty, including no insulation. Only straight pipe, with or without the tee, can use this arrangement, with the clearance left by centering the pipe.
Above the last ceiling, the vent can remain oval or use an oval to round adapter. DuraVent says round flashings, caps, and fittings cost less. The oval roof flashing comes only in 4 inch and fits roofs from flat to 5 in 12. Larger oval sizes and steeper roofs must finish in round. Need the matching tee? See the DuraVent Model BV Oval Standard Tee. The DuraVent Model BV Plain Oval Tee Support ships free from My Cozy Outdoors with No Sales Tax (except WY) and the full manufacturer warranty.

















































