F. 2-10-3 Rule
These are safety requirements and are not meant to assure proper flue draft.
This appliance is made with a 6 inch (152mm) diameter chimney connector as the flue collar on the unit.
•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 are other factors that affect flue draft.
2 ft. (61cm)
10 ft. (305cm) To Nearest Roofline
3 ft. (91cm)
Minimum
Less than 10 ft. (305cm)
2 ft. (61cm) | 3 ft. (91cm) |
| Minimum |
Pitched Roof
Figure 29.1
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 29.2
28 | Heatilator • |