Blowing and sucking......

[smokajoe]

Which is more effective for cooling, blowing through light or sucking through light?

 

[Garm]

Pulling air is best.

 

[smokajoe]

OK ummm question can I simply mount right into my 1k watt or outside room with ducting to the light? ?

 

[nuglets]

pulling is more efficient. prevents leak from the hoods as well.

 

[thump easy]

i do both on in and one out so i dont loose any air from leak strait in strait out.

 

[slump]

Right from the manufacturer of Can-Fans

http://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.

 

[nuglets]

Right from the manufacturer of Can-Fans

http://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.

vortex and ecoplus say the opposite on their websites and i sent an email to can fan and they said that info was outdated. we got into this once a while back on another thread. i'll look for it.

 

[Total Head]

i find the title of this thread very misleading...

 

[*BUDS]

You should try to push if possible, if only to give the fan a longer life as no hot air is moving thru the fan.

 

[slump]

You should try to push if possible, if only to give the fan a longer life as no hot air is moving thru the fan.

This one. Enough things are hot in a grow room...why heat the fan up unnecessarily? I'm pretty sure they are built to work well either way, but I can't think of a reason to pull air that hot through my fan.

 

[cannofbliss]

i find the title of this thread very misleading...

yeah once i saw it was about fans... i got seriously disappointed... lol

 

[cannofbliss]

Which is more effective for cooling, blowing through light or sucking through light?

to answer your question seriously now...

you want cold air to be pushed through the lights first... then the "air that was heated by the lights," to then be pulled out of the room...

its all about maintaining good air pressure as well that way it is most efficient...