Bosch SSB255 Installation And Service Manual page 31

3
2
Fig. 36 Horizontal venting system (sealed combustion) ; 3 is a wall
termination
X
Fig. 37 Horizontal venting system (sealed combustion); X≥4" (102 mm)
SSB
1
1
2
2
1
Fig. 38 Horizontal concentric system (sealed combustion)
X
2
Fig. 39 Vertical venting system (sealed combustion) ; ); X > 12"
(305 mm); Y 12" above maximum snow level or at least 24"
whichever is great
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Y
1
6720818454 (2016/02) US