Bosch Therm C 1210 ES Installation And Operating Instructions Manual page 24

Indoor residential and commercial models

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Table of Contents

Installation instructions

4.3.3 Vent configuration examples

Below are approved examples of vertical and horizontal venting

installations.

Fig. 11

Vertical venting system (single pipe penetration)

[1] Drain tee

[2] Intake

[3] Exhaust

[LA] Maintain 12 in. (18 in. for Canada) minimum clearance

above highest anticipated snow level maximum of 24 in.

above roof.

Fig. 12

Horizontal venting installation (combustion air

piping not shown)

[1] Termination

[2] Minimum above ground or normally expected snow

accumulation level

[3] Appliance

[4] Elbow (note: minimum 1ft of straight vent pipe required)

[5] Horizontal run ¼" per foot down to termination

WARNING:

▶ Single pipe penetration should be used in non-freezing

climates only and steps must be taken to ensure that

adequate combustion air is available to the water heater at

all times!

C 1210ES/ESC – 6 720 644 887 (2022/04)