F. 2-10-3 Rule
This appliance is made with a 7 inch (180mm) diameter chimney connector as the
collar on the appliance.
• Changing the diameter of the chimney can affect draft and cause poor performance.
• It is not recommended to use offsets and elbows at altitudes above 4000 feet above sea level and or when there
other factors
are
that affect
draft.
Less than 10 ft. (305cm)
2 ft. (61cm)
3 ft. (91cm)
2 ft. (61cm)
Minimum
10 ft. (305cm) To Nearest Roofline
3 ft. (91cm)
Minimum
Pitched Roof
Figure 10.1
10 ft. (305cm) or more
Less than 10 ft. (305cm)
Wall or Parapet
2 ft. (61cm) Minimum
3 ft. (91cm) Minimum
3 ft. (91cm) Minimum
Flat Roof
Figure 11.2
24