Safety Alert Key:
• DANGER! Indicates a hazardous situation which, if not avoided will result in death or serious injury.
• WARNING! Indicates a hazardous situation which, if not avoided could result in death or serious injury.
• CAUTION! Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.
• NOTICE: Used to address practices not related to personal injury.
B. Your Fireplace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
D. Clear Space . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
C. Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Heatilator • GDST4336I, GDFL4136I, GDCR4136I, GDCL4136I, GDST4336, GDFL4136 • 2129-900 Rev. P • 8/14
Table of Contents
A. Approved Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
B. Vent Table Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
C. Use of Elbows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
E. Vent Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
A. Top Vent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
B. Rear Vent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
B. Gas Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
3