B Vent Installation Through Wall

We discuss fire safety fire clearances and other gas appliance venting details for b vent chimneys.

B vent installation through wall.

Type b gas vent 3 to 12 diameter installation instructions 1 please read and understand the requirements before proceeding. You need to cut out the wall next. Type b vents ceiling floor wall clearances b vent clearances to combustibles clearance distances for a b vent to combustible materials in floors walls ceilings attics roofs. The inner pipe of reflecting aluminum heats quickly containing the warm flue gases inside.

If it is necessary to do this enclose the outside portion of the sys tem in a chase as shown in figure 11. Next you ll insert the vent pipe through the hole from the inside and attach the vent cap. A wall band mh or mwb is used by placing around the b vent then fastening to the wall. It is of the utmost importance that type b gas vent be installed.

It s easy to install a wall thimble by yourself will very little tools. Page 2 a major cause of vent related fires is failure to maintain required clearances air spaces to combustible materials. The b vent was routed to the exterior through the poured concrete foundation wall beneath the rear exterior deck and the total exterior length of the flue pipe run beneath the deck was about 10 12 with a 90 degree elbow in the run. This article series describes b vent metal chimneys used for gas fired appliances.

Simpson dura vent does not recommend installation of b vent pipe on the outside wall of a building particularly in cold cli mates. Using a wall band assures that the clearance to combustibles is maintained see figure 3. The airspace between the inner and the outer pipes provides insulation against heat loss to keep the warmer flue gases on the rise. Page 1 installation instructions round and oval type b gasvent systems for use with natural as or liquid propane category i and draft hood equipped appliances and appliances listed to use type b gas vent.

The amerivent system amerivent type b gas vent uses a double wall of metal pipe for insulation and safety. This means using a drywall cutting knife or reciprocating saw to cut out the circle clearing out the insulation directly behind the hole and then smoothly cutting through the exterior of your garage.