27" DRYER EXHAUST LENGTH
RECOMMENDED MAXIMUM LENGTH
Exhaust Hood Types
Recommended
4" DIA.
4" DIA.
4"
No. of 90º
Rigid
Elbows
Metal
0
56 Feet
1
44 Feet
2
34 Feet
3
24 Feet
Use only for short
run installations
4" DIA.
2-1/2"
Rigid
Metal
42 Feet
32 Feet
25 Feet
18 Feet
24" DRYER EXHAUST LENGTH
RECOMMENDED MAXIMUM LENGTH
Exhaust Hood Types
Recommended
4" DIA.
4" DIA.
4"
No. of 90º
Rigid
Elbows
Metal
0
43 Feet
1
33 Feet
2
24 Feet
Use only for short
run installations
4" DIA.
2-1/2"
Rigid
Metal
36 Feet
26 Feet
16 Feet