Burnham ES2 ES2 Installation & Service Instructions Manual page 9

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