Overview of Primary Product

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Locate the air hood so the air piping length doesn't exceed the limits below: 7.
Construct the air duct piping with 4" diameter dryer vent or aluminum or galvanized steel pipe, using as 8.
few elbows as possible.
Fasten and support the air duct piping to prevent damage and separation of joints.9.
NUMBER OF ELBOWS MAXIMUM LENGTH OF AIR PIPE
2 to 4 35'
5 28'
6 21'
7 14'