DuraVent Type B Gas Vent - Manual (Page 24)

24
5-INCH OVAL GAS VENT FOR
INSTALLATION IN 2” x 4” STUD
WALLS
MH6375 CATEGORY I APPLIANCES ONLY
Where pipe passes through the roof, maintain
1-inch minimum clearance to all combustible
materials.
Install oval flashing, storm collar, and oval vent
cap.
Gas vent shall extend at least 2 feet above the
highest point where it passes through the roof,
and at least 2-feet higher than any portion of
the building within 8 feet.
attach base plate to 2” x 4” support. Firestop
spacers shall be installed as shown on all
floors.
1. Saw out portion of header between studs
and install one firestop spacer.
2. nail the second firestop spacer in position,
after oval pipe is in place.
3. additional floors above are installed in the
same manner.
Use only vents labeled “For Exterior Use
Only”, above roofline. (Canada Only)
OVaL pIpE
FIRESTOp
SpacER
FIRESTOp
SpacER
BaSE pLaTE
anD TEE
SuppORT
1 IncH MInIMuM
cLEaRancE TO
cOMBuSTIBLES
cap
STORM cOLLaR
ROOF FLaSHInG
OVaL
TEE
OVaL
pIpE
2” X 4” SuppORT