Bosch 830 ES Installation And Operating Instructions Manual page 25

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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.

830 ES – 6 720 644 936 (2021/08)

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!

Installation instructions

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