Y splitter for exhaust

JoeBlow5823

Well-Known Member
The absolute best thing you can do to optimize the performance of your ventilation system is to use galvanized snap seam instead of the slinky hose shit and keep runs as straight as possible bends really hurt performance. Seal the galvanized snap seam with duct mastic or aluminum tape.
Slinky pipe is fine as long as you oversize it. 300-500 cfm through 8'' slinky is fine.
 

Hollatchaboy

Well-Known Member
You may find it costly enough to warrant just putting in a second fan but if you are limited to one exhaust duct going out of the house then I would want one fan feeding that and pulling off multiple sources using dampers on temperature controllers/timers as required.
That sounds logical. I'll have to see what I can find.
 

chuckeye

Well-Known Member
Diameter of a 4" circle is 16 sq. inches x 2 = 32 sq. inches

Diameter of a 6" circle is 28 sq. inches

With both 4" fans running into a 6" pipe, not a problem.

Cheers
 

redi jedi

Well-Known Member
Slinky pipe is fine as long as you oversize it. 300-500 cfm through 8'' slinky is fine.
Flex duct is like running in sand, dont matter how oversize you go. Its convenient and easy to set up though. Pulling straight runs tight helps but may not be practical.
 

xtsho

Well-Known Member
Yes you can use a Y to connect 2 lines into 1 exhaust. I ran a portable air conditioner and my exhaust fan through a Y into 1 line without any issues.
 
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