Bosch Greenstar combi 151 p - Vent and Combustion Air Pipe Lengths

30 | Notes on installation and operation
Greenstar combi 100 p / 151 p6720872361 (2017/04)
Fig. 32 Vertical venting system (sealed combustion)
[1] Intake
[2] Exhaust
X Greater than 12 inches (305 mm)
Y Greater than 12 inches (305 mm)
Fig. 33 PolyPro Flex chimney cap (PP) flue gas routing (sealed
combustion)
[1] Intake
[2] Exhaust
Fig. 34 Horizontal venting system (telescopic concentric vent kit)
6.7.3 Vent and combustion air pipe lengths
With Flex Pipe the maximum length is reduced by 50%.
3" (76 mm) Vent and combustion air pipe
For all installation situations and for all appliances the maximum vent
and combustion air pipe length is 100 feet each, with no more than
8 elbows each.
2
6 720 641 933-08.1O
Y
X
1
Y
X
X
0010004964-001
1 2
1/4" per foot
(50 mm per meter)
6720641933
-
78.1O