5-Inch Oval Installation in 2x4 Inch Stud Walls. M&G Duravent 3GV60, 5GVAF, 4GVRRA4, 3GVFS, 4GV60F, 3GVIS, 3GVRS4, 3GVFF, 4GVRS, 4GVX8

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.

OVAL PIPE

FIRESTOP

SPACER

Use only vents labeled “For Exterior Use

Only”, above roofline. (Canada Only)

CAP

STORM COLLAR

ROOF FLASHING

FIRESTOP

SPACER

1 INCH MINIMUM

CLEARANCE TO

COMBUSTIBLES

OVAL

PIPE

OVAL

TEE

BASE PLATE

AND TEE

SUPPORT

2” X 4” SUPPORT

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HIGH WIND CAP

DuraVent CAP

MALE END

STORM

COLLAR

ROOF

FLASHING SEE TABLE 1

SUPPORT

FEMALE END

1 INCH MINIMUM

CLEARANCE TO

COMBUSTIBLES

OVAL-TO-ROUND

ADAPTER

FIRESTOP SPACER

To assemble, align the two pieces, and push together until they click.

Use only vents labeled “For Exterior Use

Only”, above roofline. (Canada Only)

OVAL

PIPE

OVAL

TEE

BASE PLATE

AND TEE

SUPPORT

2” X 4” SUPPORT

Diagram showing transition from 5” oval to round vent pipe, and optional offset. Note that offsets must be supported

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