Section 6: Complete The Enclosure; Chimney Termination (2-10-3 Rule) - Heatilator CONSTITUTION C-40 Owner's Manual

6
Complete the Enclosure
A. Chimney Termination (2-10-3 Rule)
Chimney Termination Requirements (See Figures 25.1 and 25.2)
• Must have a cap approved and listed for this fireplace system
• Must not be located where it will become plugged by snow or other material
• Must terminate at least 3 ft (914 mm) above the roof and at least 2 ft (610 mm) above any portion of the roof within 10 ft
(3.05 m)
• Must be located away from trees or other structures
Slanted Roofs
Chimney must
extend 3 ft
(914 mm)
above the roof
Flat Roofs
Chimney must
extend 3 ft
(914 mm)
above the roof
Figure 25.1 Termination Requirements
November 11, 2008
Chimney must extend 2 ft (610 mm)
above any portion of the roof
within 10 ft (3048 mm) of the chimney
GAS, WOOD OR FUEL
OIL TERMINATION
GAS
TERMINATION
C
A
Gas Wood & Fuel Oil
Termination Termination
A 6 in. 20 in. min.
B 20 in. 24 in. min.
C 18 in. 18 in.
Figure 25.2 Multiple Chimneys
Heatilator • Constitution EPA Fireplace • 480-1091C
Chimney must extend 2 ft (610 mm)
above any portion of the roof
within 10 ft (3048 mm) of the chimney
B
Comments
Horizontal distance between terminations
Distance to perpendicular wall
Vertical distance between terminations
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