Hearth and Home Technologies 6000GCF-IPI Wall Penetration Framing, Combustible Wall Penetration

B. Wall Penetration Framing

Note: Heat shields MUST overlap by a minimum of 1-1/2 in. (38 mm). The heat shield is designed to be used on a wall 4 in. to 7-1/4 in. (102 mm to 184 mm) thick. If wall thickness is less than 4 in. (102 mm) the existing heat shields must be field trimmed. If wall thickness is greater than 7-1/4 in. (184 mm) a DVP-HSM-B will be required.

	3 IN. TOP
HEAT	CLEARANCE
SHIELD		HEAT
		SHIELD

	1 IN. CLEARANCE
WALL
	WALL BOTTOM SIDES
SHIELD
FIRESTOP

Figure 8.5 Horizontal Venting Clearances to Combustible Materials

Combustible Wall Penetration

Whenever a combustible wall is penetrated, you must frame a hole for the wall shield firestop(s). The wall shield firestop maintains minimum clearances and prevents cold air infiltration. See Figure 8.6.

•The opening must be framed on all four sides using the same size framing materials as those used in the wall construction.

•DVP pipe - A wall shield firestop is required on one side only on interior walls. If your local inspector requires a wall shield firestop on both sides, then both wall shield firestops must have a heat shield (refer to Section 16.B.) attached to them.

•See Section 10.J. for information for regarding the in- stallation of a horizontal termination cap.

Non-Combustible Wall Penetration

If the hole being penetrated is surrounded by noncom- bustible materials such as concrete, a hole with diameter one inch greater than the pipe is acceptable.

Whenever a non-combustible wall is penetrated, the wall shield firestop is only required on one side and no heat shield is necessary.

12 in.

10 in.

B

A

A*	B
49-1/2 in,	48-1/2 in,

*Shows center of 10 in. x 12 in. vent framing hole for top venting. The center of the hole is 1 inch above the center of the horizontal vent pipe. With minimum vertical or 6 inch and 90º elbow.

Figure 8.6 Wall Penetration

Heat & Glo • 6000GCF-IPI, 6000GCF-IPILP • 2110-900 Rev. H • 11/08 29