Heat & Glo LifeStyle LUX60 Vent Clearances and Framing, Pipe Clearances to Combustibles

8 Vent Clearances and Framing

A. Pipe Clearances to Combustibles

Refer to Fiture 8.1.

WARNING! Risk of Fire! Maintain air space clearance to vent. DO NOT pack insulation or other combustibles:

•Between ceiling firestops

•Between wall shield firestops

•Around vent system

Failure to keep insulation or other material away from vent pipe may cause over heating and fire.

B. Wall Penetration Framing

Refer to Figure 8.2.

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.

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

3 in.
(76 mm)		Air space clearance to
		bottom and sides of
		horizontal pipe must be
		at least 1 in. (25 mm)
Cement
Board
Steel Stud		No combustible
Assembly		framing to be
		located within
		shaded area.
	WALL	1-1/2 in. (13 mm)
		minimum to
		perpendicular
		wall.

Figure 8.1 Horizontal Venting Clearances To Combustible Materi- als

• 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			10 in.
must have a heat shield attached to them.			(254 mm)
• See Section 10.I. for information for regarding the	12 in.		Vent Framing Hole
installation of a horizontal termination cap.
	(305 mm)
Noncombustible Wall Penetration
If the hole being penetrated is surrounded by noncombus-
tible materials such as concrete, a hole with diameter one
inch greater than the pipe is acceptable.
Whenever a noncombustible wall is penetrated, the wall			Framing should be
shield firestop is only required on one side and no heat
			constructed of
shield is necessary.			2x4 lumber.
			The center of the	102 1/2 in.
			framing hole is	(2604 mm)
			1 in. (25 mm) above	from center of
			the center of horizontal	pipe to bottom
			vent pipe.	of appliance
				6 in.
				(152 mm)
	Figure 8.2	Wall Penetration
Heat & Glo • LUX60 • 4062-116 • Rev. G • 4/11				31