Important question about size of intake fan

Hello fellas,

In a room that is 3,5m x 3,3m x 2,9m I have decided to use an extractor fan that will be around 2000 m3/h. I will also use a carbon filter to this. This area will have nine 600w HPS lamps. Can someone help me out on chosing the right size for an intake fan in m3/h or explain to me the right way to calculate it myself?

Kyriakos

The intake fan should run at 2/3 the m3h of the exhaust (after the filter and any ducting has been accounted for), this should ensure u get enough fresh air in whilst maintaining negative pressure

Thank you for your answer. Do you believe I would have problems with the heat from the lamps in this area? The intake air will be between 10-20 degrees celcius.

This is how I work it out approximately,
1mx1mx2m volume
600w bare bulb hps/mh = air exchange every 3 mins
1000w bare bulb hps/mh = air exchange every 90 seconds.

This takes into consideration the fact that you will be using an inline filter, if ur using an ozone generator you could get away with less airflow. If you happen to be using substantial ammounts of ducting with bends then you wanna oversize it abit, understand?

Personally i go total fuckin overkill on vent system as you can allways dial it down if you have to but buying a brand new fan cos the one u allready had failed to cope has got to be a sore feeling. Air cooled lighting is imo one of the best additions you can make to ur room. Most efficient light cooling is a cooltube with an adjustawing reflector instead of the normal reflector that you get with cooltubes, vert is another efficient way of running lighting but i have no experience with that mate