18
TYPE B GAS VENT
Multiple Gas Fired Tank-Type Heaters
TABLE 7. TECHNICAL DATA VENTING
Model 500
Input: 500,000 btu/hr
6 8 10 20 30 100
Rise
- 10 10 10 9 8 8
10 10 10 9 9 8 8
10 10 9 9 9 8
Multiple Fan Assisted Water Heaters
6 8 10 20 30 100
2 14 14 12 12 10 10 9 8
3 16 16 14 14 14 12 12 10
4 18 18 16 16 14 14 12 12
Combination of Multiple Fan Assisted and Natural Draft Water Heaters
6 8 10 20 30 100
2 16 14 14 14 12 12 10 9
3 18 18 16 16 14 14 12 10
4 20 20 18 18 16 16 14 12