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4. CONNECT VENTING (continued)
Model ES23 ES24 ES25 ES26 ES27 ES28 ES29
Input (MBH) 70 105 140 175 210 245 280
Minimum Vent
Diameter (in)
4 5 6 6 7 7 8
Vent Height (ft) With B-Vent (double wall) Vent Connector
6 0 0 6 0 4 0 2
8 8 8 8 2 8 2 8
10 10 10 10 10 10 10 10
15 15 15 15 15 15 15 15
20 20 20 20 20 20 20 20
30 20 30 30 30 30 30 30
50 20 30 30 30 30 30 30
100 20 30 30 30 50 50 50
Table 4.1: ES2 Vent Connector - Horizontal Length Restrictions (ft)