Venting 1000 watt lights?

I have looked high and low to find this answer and yet have not found it here. What size fan do you use to vent them? Also what do you use to keep the dust out from the intake, from the outside world?

Running an enclosed room but venting the lights.

Thanks,

G.AL

I also want to know who is running 3 or more 1000 watters.

I need to know where u live too

lol, funny guy! I reworded it... yea it did sound funny. I was in a hurry.

in one room i have an 8 inch hi power cooling 4 x1000w hps. in another room i have a 4 inch hi power cooling 2x 1000w hps. Both setups are running through a carbon scrubber.

Temps are 78 both rooms

Thanks brother... what are the cfm on them?

ok I'll help a bit.

You will hear a lot about cfm and cooling but don't listen to nooblets..........listen to an old man

You can have 600000 cfm and still not cool your lights enough if you don't have a low enough ambient temperature that is supposedly cooling the lights.

If the air being used to cool your lights is already 80 then nothing you do will cool them under 80 + degrees.

But, let's say the air outside your room that you use for intake and reflector cooling is about 70 degrees or less. This will easily cool your lights with minimal cfm (around 250 minimum) and keep your room around 80 degrees because each light makes the room about 5 degrees higher.

I did a write up on this way back when I was comparing inline fans. It's not the speed of the fan but the coolness of the air you pull/push over the bulbs. Yes, the speed will help slightly, but no where near what you think it will help. Give me 70 degree air with two 1000 watt lights and a TD-150 on high speed and my room will max out at 80.

Of course the intake cfm from another fan keeps the growroom cool too. But again, you don't need high cfm to accomplish this. Only cool intake air. I use a TD-150 on low speed for intake and blow that thru a filter.

So my recommendations are 2 inline fans of 150 to 250 cfms. The TD series is great for this. The next thing is cool intake air. You will not get your room to decent temps without properly cooled intake air. Forget the cfms.

If you live in a cool area year round you are set. You wont even need AC. But if you live in the heat you will need an AC setup or you will not cool your room off with two 1000 watt lights.

I have a sealed room except for air cooling the lights. I have 2 1000 with co2 generator. I live in a cold winter climate, so I'm bringing in outside air (air in crawlspace under house addition) I filter the air with a piece of weed blocking fabric. I have 8" insulated ductwork that goes through lights then is attached to an 8" elicent inline fan. I then expel it into another room in my house. In the summer it goes outside. I have a separate 6" fan attached to carbon filter. I have no problems with heat, in fact I've got the fan on low in order to bring temps up to the 80's for my co2. Need dehumidifier to lower humidity, haven't used this yet in the heat of summer.

Thanks to you both. I am looking into getting a cool box which is similar to the ice box so hopefully I can get this done. I live in the high desert area and it can get up to about 120 a couple of times a year. Most of the time during summer it is around 90-105. Will be running ac at 16800 btu's to help with cooling 8x8 clone/veg and 14x10 flowering room.

Anymore suggestions would be great.

G.AL