Inline fans inline?

[JITAMON]

aloha Am wondering if using 2 4" vortex fans to cool 2 400w lights using the first vortex to push air from the top of the closet, through the two 400w's to be sucked out the closet by the other vortex inline, is this efficient? whew that was a long one If not , any suggestions are welcome.

P.S. Wanted to add that the 4" vortex on intake duty has an immediate 4" to 6" adapter that runs the 6" exhaust tubing that runs all through both lights till it is reduced at the exhaust 4" vortex which runs to another room.

 

[GrassRoots]

Yeah, it's efficient.

 

[DangerP]

Why not just use one fan to cool each light? Running two fans inline means the second fan spins as fast as the other one, but doesn't push the air much faster than it's already going; you're not going to get twice the cfm that way. If you run them in parallel, though, you'll be getting the most out of each fan.

 

[merrblah]

I run two 400 with a 270 CFM can fan, no problem. Granted i am using a 6", parallel cooling with two 4" vortex fans should definitely keep things under control. If heat becomes more of an issues, consider CMH bulbs over HPS and MH, much less heat. take it easy.

 

[DIGITALHIPPY]

put one fan at each end of the hood row, then your intake, and exhaust, it does help reduce the cfm loss due to drag, quite a bit in a case like yours.

 

[JITAMON]

Aloha! thank you guy's for the replies. I wanted to say, I personally would vent this the way you guys recommend, only this is a joint project and other members don't want to make any more holes in their walls. What can I do?

 

[DIGITALHIPPY]

Aloha! thank you guy's for the replies. I wanted to say, I personally would vent this the way you guys recommend, only this is a joint project and other members don't want to make any more holes in their walls. What can I do?

you can tell them there fucking idiots.
then tell them the phare "in for a penny in for a pound", tell them whats one more fucking hole? beat it in if u have to. can get dirty and tell them to suffer the consequences with heat-stressed, shitty, swag-bud, that cost 900$ and oz to grow...... sounds like my first run or two......

 

[Albert Hofmann]

aloha Am wondering if using 2 4" vortex fans to cool 2 400w lights using the first vortex to push air from the top of the closet, through the two 400w's to be sucked out the closet by the other vortex inline, is this efficient? whew that was a long one If not , any suggestions are welcome.

P.S. Wanted to add that the 4" vortex on intake duty has an immediate 4" to 6" adapter that runs the 6" exhaust tubing that runs all through both lights till it is reduced at the exhaust 4" vortex which runs to another room.

This is a waste of a fan...1 pulling with attention to sealing the ducting and keeping bends to a minimum is all you need...remember, these fans are made to pull, so when you set them up at the end of a ventilation run they will be moving max air. Blowing more air at the fan won't move more air it will build more pressure.

albert

 

[JITAMON]

Im doing whats needs 2 b done. wit a litle 2 get er done update in tha morn! Ok, so that was easier than i thought, i just did what needed to be done and we moved on. I decided to use one 4" vortex to vent the light's and one to vent the room. My temp's range from 78-83 and humidity is 48% Thank you everyone for your help, I really appreciate the responses. thanx again