Battling temp

[cordrip]

Well now i have my 7week old seedlings in my grow room,they look really healthy.I have them under a 4oowatt sodium the temp sits at 80.I have my carbon filter fan comming on for 15mins an hour.My problem is i turned my other 400watt on last night but the temp went to 100 so i turned off one of the lights.What i need is any tips to bring the heat down.I get one problem sorted then another pops up lol.Whoever said growing weed was a piece of cake needs a slap.....

[bejay]

not sure what type of light reflectors you have but you need to atleast have air cooled reflectors and a blower or fan pulling the heat out of the grow room to keep the temps down.

[dusto2k3]

or just up the exhaust in the grow room. You need to get that hot air out of there faster..but an ait cooled hood allows me to operate a 1khps in a 4x4x7.5 feet room. That says a lot.

[cordrip]

thanks guys.have just put my fan on 15mins on/off see how that works out.Have put on my co2 aswell give them a boost,hope they aint still a bit young for co2?

[divestoned]

my exhaust fan runs the entire time my lights on,brings in lots of fresh cool air.in your case this method will waste c02,i would go w/the air cooled reflectors.you can then run your exhaust intermitantly.

[Perp]

If you're running co2 then air cooled reflectors are almost a must. Either that or a portable ac unit. Personally, I'd do away with the co2 for now, and just run your exhaust 24/7. It sounds like your grow is not optimized enough to make use of the co2 anyway. Once you get a grow or two under your belt, then you can go for the cooltubes and co2.

[cordrip]

Thanks again perp.Yea i changed the fan to 15mins off/on.However i noticed that it crept up to 100 again during the night.Well i will take your advice will put it on 24/7.I'm glad you suggested that cz i was worried that having it on 24/7 would take to much air out of the room,but you have made me feel better knowing that is not a prob.

[mellogold]

Thanks again perp.Yea i changed the fan to 15mins off/on.However i noticed that it crept up to 100 again during the night.Well i will take your advice will put it on 24/7.I'm glad you suggested that cz i was worried that having it on 24/7 would take to much air out of the room,but you have made me feel better knowing that is not a prob.

lolz at your statment bro, you want as much air moving as you possibly can.

take my setup for instance

2 600w hps in a 2.8x4x6 ft area

i have both these lights in cool tubes with a 600cfm fan blowing through it. Then i have a seperate 400cfm vortech fan pulling air out of the cab 24/7

so a total of 1000cfm when light on cooling the cab and exchanging air and at light out i still have the carbon scrubber scrubbing. keep that thing on 24/7 dude