Installation instructions
25
830 ES – 6 720 644 936 (2021/08)
Fig. 15 Horizontal venting system (concentric vent)
Fig. 16 Horizontal parallel venting system (twin pipe direct
vent)
[A] 3 ft minimum
[B] ≤ 26 ft with 3" venting
≤ 60 ft with 4" venting
Below are approved examples of vertical venting
installations.
Important:
Note: Pitch horizontal runs down toward the heater, ¼" per foot.
Fig. 17
[1] Appliance
[2] Condensate drain
[3] Elbow
[4] Hose clamp
[5] Firestop support
[6] Firestop support
[7] Rain cap
[8] Storm collar
[9] Flashing
[10] 4" minimum air space
WARNING:
▶ Single pipe penetration should be used in non-freezing
climates only!
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