Webasto Air Top 2000 ST Installation Instructions Manual page 29

Combustion air
NOTE:
The combustion air intake line with silencer must not exceed
a max. length of 2.0 m.
7.4. Properties of combustion air intake line
CAUTION:
The exhaust pipe can be confused with the combus-
tion air intake line!
Damage to fuel pump cable
 Fit the exhaust pipe only to the exhaust outlet socket cou-
pling
Do not use a metal combustion air intake line

Combustion air intake line
Inside diameter
Smallest bending radius
Max. sum of all bends
74
7.5. Combustion air intake silencer
NOTE:
A combustion air intake silencer must be installed if the
length of the combustion air intake line is less than 0.5 m.
Value
25 mm
50 mm
270°
Boat Air Heaters
Air Top 2000 ST / Evo 40 / Evo 55