Which fan where?

Hey guys I have a problem It looks like I picked up a smaller CFM 6 inch in-line fan it's like a 250 I also have a 440 Should I just wait and get a Nother 440 or will the 250 work in one of two spots in this particular model
Outside vent---ducting---fan---ducting--- hood---ducting---fan---ducting
Thanks for any input.

How long is the run?

Probably 20 ft

You won't know until you try. I ran a 4" carbon filter>3' duct>4" inline fan>4-6" reducer>6" cooltube> 4-6" reducer> 4" inline fan>10' duct> exit. Worked good.

I'd try the 250 before the hood and the 440 after so that the 440 is pulling the hot air that the 250 is pushing. Just my opinion as to how I'd try it first.

Creature1969 said:

You won't know until you try. I ran a 4" carbon filter>3' duct>4" inline fan>4-6" reducer>6" cooltube> 4-6" reducer> 4" inline fan>10' duct> exit. Worked good.

I'd try the 250 before the hood and the 440 after so that the 440 is pulling the hot air that the 250 is pushing. Just my opinion as to how I'd try it first.

Click to expand...

Thanks man. I have all the materials on hand to at least give it a shot