Heat & Glo LifeStyle ST-36TRB-IPI Vent Clearances and Framing, A. Pipe Clearances to Combustibles

8 Vent 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.

‡,f wall thickness is less than 4 in. the e[isting heat shields must be field trimmed. ,f wall thickness is greater than 7-1/4 in. 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).

‡,f wall thickness is less than 4-3/8 the e[isting heat shields must be field trimmed. ,f wall thickness is greater than 7-5/8 in. a DVP-HSM-B will be required.

B. Continue Adding Vent Components

WARNING! Risk of Fire! Installation of this appliance may require the use of heat shield 385-920 above the first 900 elbow in the venting system.

•The heat shield is required above the first elbow if the clearance to combustible surface above is between three (3) and four (4) inches. A shield is not required for clearances greater than four inches. See Figure 8.2.

COMBUSTIBLE

SURFACE

HEAT	3 in. MIN.
SHIELD	(76 mm)
(Required for clearances
between 3 and 4 inches.)

3 in. (76 mm) top clearance

1 in. (25 mm) clearance around vertical sections

(DVP-SLP Pipe Shown)
Heat	3 in. (76 mm)
Shield	top clearance *
	Heat
	Shield
	1 in. (25 mm)
Wall	clearance
Shield	bottom & sides
Firestop
	WALL

Figure 8.2

Heat

Shield

Wall

Shield

Firestop

WALL

3 in. (76 mm) top clearance *

Heat

Shield

1 in. (25 mm) clearance bottom & sides

•Fasten the shield in place using the four pilot holes provided in the part. The shield should be oriented such that the 13-1/8 inch dimension (longest dimension) is running in the same direction the elbow is pointing. The shield should be centered directly above the elbow, and positioned so that it creates a 1/2 inch airspace between the shield and the combustible surface. See Figure 8.3.

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

als at wall shield 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

36 Heat & Glo • ST-36TRB-IPI, PIER-36TRB-IPI, LCOR-36TRB-IPI, RCOR-36TRB-IPI • 2128-900 Rev. H • 8/11