Heat & Glo LifeStyle 350TRSILP-AUF Vent Clearances and Framing, Pipe Clearances to Combustibles

8Vent Clearances and Framing

A. Pipe Clearances to Combustibles

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.

Note: Heat shields MUST overlap by a minimum of 1-1/2 in. (38 mm).

•DVP heat shield - 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.

•SLP heat shield - designed to be used on a wall 4-3/8 in. to 7-5/8 in. (111 mm to 194 mm thick).

•If wall thickness is less than 4-3/8 in. (111 mm) the existing heat shields must be field trimmed. If wall thickness is greater than 7-5/8 in. (194 mm) a DVP-HSM-B will be required.

(DVP-SLP Pipe Shown)

B. Wall Penetration Framing

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.

•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.

•SLP pipe - A wall shield firestop must be placed on each side of an interior wall. A minimum 1-1/2 inch (38 mm) overlap of attached heat shields must be maintained.

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

3 in. (76 mm) top clearance

1 in. (25 mm) clearance around vertical sections

Heat

Shield

Wall

Shield

Firestop

3 in. (76 mm) top clearance *

Heat

Shield

1 in. (25 mm) clearance bottom & sides

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.

WALL

Note: A 152 mm section of straight flue must be attached to the fireplace before a 90° elbow.

Heat

Shield

Wall

Shield

Firestop

3 in. (76 mm) top clearance *

Heat

Shield

1 in. (25 mm) clearance bottom & sides

10 in.	10 in.
254 mm
	254 mm

C

D

WALL

* When using SLP pipe, minimum clearances from the vent pipe to combustible

materials at inside wall firestops are: Top: 2-1/2 in. (64 mm) Bottom: 1/2 in. (13 mm) Sides: 1 in. (25 mm)

Figure 8.1 Horizontal Venting Clearances To Combustible

Materials

	10 in.	12 in.
	254 mm
		305 mm
A*	B*

		A*	B*	C	D
350TRSI-AUF	in.	39-3/4	22-3/8	38-3/4	21-3/8
350TRSILP-AUF	mm	1010	568	984	541

*Shows center of vent framing hole for top or rear venting. The center of the hole is one 25.4 mm above the center of the horizontal vent pipe.

Figure 8.2 Wall Penetration

38 Heat & Glo • 350TRSI-AUF, 350TRSILP-AUF • 2089-980 Rev. o • 6/12