Burnham manual Connect Venting, ES2 Vent Connector Horizontal Length Restrictions ft

4. Connect Venting (continued)

Table 4.1: ES2 Vent Connector - Horizontal Length Restrictions (ft)

Model	ES23	ES24	ES25	ES26	ES27	ES28	ES29
Input (MBH)	70	105	140	175	210	245	280
Minimum Vent	4	5	6	6	7	7	8
Diameter (in)
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