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Heatilator • GBST4336I, GBFL4136I • 2135-900 Rev. D • 11/08
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CEILING FIRESTOP
ON FLOOR OF ATTIC
(SECTION 8B)
LISTED B-VENT TERMINATION CAP
(SECTION 4D)
VENT PIPE PENETRATES ROOF
PREFERABLY WITHOUT AFFECTING
ROOF RAFTERS (SECTION 8B)
FRAMING HEADED OFF
IN CEILING JOISTS
(SECTION 8B)
GAS LINE
(SECTION 11)
MANTEL AND
MANTEL LEG
(SECTION 5)
SURROUND
HEARTH EXTENSION
VENT PIPE (SECTION 7 & 8)
OPTIONAL
WALL SWITCH
STORM COLLAR
(SECTION 4D)
NON-COMBUSTIBLE ROOF FLASHING
MAINTAINS MINIMUM CLEARANCE
AROUND PIPE
FRAMING/HEADER
(SECTION 5)
ATTIC INSULATION SHIELD (NOT SHOWN)
MUST BE USED HERE TO KEEP
INSULATION AWAY FROM VENT PIPE IF
ATTIC IS INSULATED (SECTION 10D)
NOTE: MUST TERMINATE VERTICALLY
A. Typical Appliance System
NOTICE: Illustrations and photos refl ect typical installations and are for design purposes only. Illustrations/diagrams are not
drawn to scale. Actual product may vary from pictures in manual
Figure 4.1 Typical System
4
4
Getting Started
Installer Guide