Bosch C 1210 ES/ESC Manual page 14

14 | Installation instructions
Calculation example for 4" venting:
Exhaust
System used
Number of 90° elbows needed:
Number of 45° elbows needed:
Table 15
Calculation of example
Max. length
90° elbow reduction
sub-total =
45° elbow reduction
Total =
Table 16
For this example, the maximum allowable exhaust pipe
length is 58.5 feet.
Combustion air
System used
Number of 90° elbows needed:
Number of 45° elbows needed:
Table 17
Calculation of example
Max. length
90° elbow reduction
sub-total =
45° elbow reduction
Total =
Table 18
For this example, the maximum allowable combustion
air pipe length is 55 feet.
6 720 644 887 (2013/02)
Twin pipe
1
2
63'
- 2.5'
61.5'
- 3'
58.5'
Twin pipe
2
2
63'
- 5'
58'
- 3'
55'
C 1210 ES/ESC