Hearth and Home Technologies C-40 - Manual (Page 25)

November 11, 2008 Heatilator • Constitution EPA Fireplace • 480-1091C Page 25
Slanted Roofs
Flat Roofs
Chimney must
extend 3 ft
(914 mm)
above the roof
Chimney must extend 2 ft (610 mm)
above any portion of the roof
within 10 ft (3048 mm) of the chimney
Chimney must
extend 3 ft
(914 mm)
above the roof
Chimney must extend 2 ft (610 mm)
above any portion of the roof
within 10 ft (3048 mm) of the chimney
Figure 25.1 Termination Requirements
Figure 25.2 Multiple Chimneys
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
Gas
Termination
Wood & Fuel Oil
Termination
Comments
A 6 in. 20 in. min. Horizontal distance between terminations
B 20 in. 24 in. min. Distance to perpendicular wall
C 18 in. 18 in. Vertical distance between terminations
C
A
GAS
TERMINATION
B
GAS, WOOD OR FUEL
OIL TERMINATION