What's new

Question about setting up air cooled hoods?

... I've never attempted to 'pull' air through my system, as just about everything i've read suggests against it.
Please cite? I have read all I can on this and I have NEVER seen a recommendation for pushing air as opposed to pulling. Not saying you haven't read this as you said, I just would really like to read it myself.
 

303hydro

senior primate of the 303 cornbread mafia
Veteran
Well most fans are only rated to a certain temperature and can be worn down or fail due to excessive heat, so a lot of manufacturers will suggest to push if you want to mount your fan in close proximity to the light.
 
Well most fans are only rated to a certain temperature and can be worn down or fail due to excessive heat, so a lot of manufacturers will suggest to push if you want to mount your fan in close proximity to the light.
I dunno man, most of the fans I use are made for the high temps. Again, which manufacturers and can you show me where they recommend this?
 
I

In~Plain~Site

Please cite? I have read all I can on this and I have NEVER seen a recommendation for pushing air as opposed to pulling. Not saying you haven't read this as you said, I just would really like to read it myself.

Well, it's been a while since I've read any of the ventilation threads here at the Mag, pick and choose I suppose.

Just to make sure we're on the same page about push/pull, here's what I have done in the past.

filter>fan>hoods>exhaust

Everything I can recall suggested this was the way to do it, unless some extenuating circumstance wouldn't allow.Not saying it can't be done the other way.

All I can do is offer my tried and true testimony on what has worked for me.

Good Luck :ying:
 

303hydro

senior primate of the 303 cornbread mafia
Veteran
I dunno man, most of the fans I use are made for the high temps. Again, which manufacturers and can you show me where they recommend this?

Max Fan / Can Fan :

http://www.canfilters.com/faq.html

When Air cooling lights, should you push or pull your airflow?
We recommend to push the air through your air cooled lights to avoid overheating your fan and to create a positive air pressure in your ducting and light hoods.
Approximately 150 - 200 CFM is required to air cool a 1000W Bulb.
 
Max Fan / Can Fan :

http://www.canfilters.com/faq.html

When Air cooling lights, should you push or pull your airflow?
We recommend to push the air through your air cooled lights to avoid overheating your fan and to create a positive air pressure in your ducting and light hoods.
Approximately 150 - 200 CFM is required to air cool a 1000W Bulb.
Ok, well, there it is. I have never seen anyone recommend that before but I stand corrected. I still prefer to suck. Lol.
 

303hydro

senior primate of the 303 cornbread mafia
Veteran
Regardless if you suck,................ or blow

:laughing:


I don't think it's gonna make your herbs any better or worse as long as temps, ppms are dialed and you keep your glass and air clean.
 

louie

Member
Awesome info guys! I see a lot of people recommend having a filter in the system (usually before the lights). Is this crucial? Wouldn't this cut down on air flow through the lights dramatically? I usually have a scrubber filtering air inside the room with nothing but a fan contected to it.
 
I

In~Plain~Site

Having a filter is crucial for scrubbing/cleaning the air inside your room.

It doesn't necessarily have to be connected to your lights, but you will need to cool them/the room in some way.

Closed loop for light cooling only

pull air from outside your room>through your hoods>exhaust air outside your room

When using the closed loop you will still need another fan/filter for aroma-control.



Awesome info guys! I see a lot of people recommend having a filter in the system (usually before the lights). Is this crucial? Wouldn't this cut down on air flow through the lights dramatically? I usually have a scrubber filtering air inside the room with nothing but a fan contected to it.
 
Awesome info guys! I see a lot of people recommend having a filter in the system (usually before the lights). Is this crucial? Wouldn't this cut down on air flow through the lights dramatically? I usually have a scrubber filtering air inside the room with nothing but a fan contected to it.
Yep, that works. You will want some sort of filter on your light air inlet in any case. Not a carbon scrubber but something to keep dust out of the hoods.
 
Top