temps in my grow room hit 110 today

so i need some help figuring out the cheapest way to cool down my grow room. It is in my bedroom in a 4x8 area, currently with one 1000W but was hoping to double the plants and put up a 600W soon. the exhaust fan is borrowed so im not sure about the exact specs but its around 500 cfm i believe. so how should i go about cooling this area? the tent is on from 7 pm to 7am and it [eaked at 110 degrees today at like 10pm, and at like 11:45 (nowish) it started dropping. im going to sleep soon so im not sure what the temps will get to while im asleep but i clearly cant let it get to 110 anymore. this is our 3rd day of flowering. its next to an ac vent, should i just use our central ac? should i get a window ac unit? should i get a bigger exhaust fan? intake fan (currently have none)? whats my cheapest option? sorry if im rambling, very high...

What is your ambient temp in the bedroom?
The exhaust cfm's sound like plenty. I would use a passive intake(make sure its big enough) If you can draw in cool air from a a/c vent, do it. But make sure your not drawing in hot static air from the vents. i.e. your a/c is on.

check my journal, I use the a/c vent to coll my flowering chamber, carbon filter and blower(275 cfm) to evac heat AND I have a dayton intake fan (235 cfm) the flowering chamber is 5ft wide, 2.5ft deep and 5ft tall My temps stay at whatever the temps in the house are. I don't use the a/c like you think probably. I have a video or two, three maybe four lol, you can see every inch of the set up.

or, if this helps any...



6' duct out of chamber from carbon filter inside the chamber, goes into blower



Blower feeds the air through a cooling tube (long length of tube) and out somewhere else in the house.

the a/c vent is reduced to a pair of 4" ducts at the T, I keep one 3/4 of the way taped closed, the other leads inside the flowering chamber after passing through a 4" duct booster to increase static pressure into the chamber.





goes into the chamber (behind filter kinda) and is split by another T connector and sent into 4" ducts,



which aim directly down on to the lights (bulb end)



6" axial fan for intake is on a timer and blows in ambient air from the veg room, 78*f





oh yeah, and I have 4" fans in there that aim up from underneath the lights. They help clear out any o2 pockets stuck under the foliage.

you dont say if your exhausting out of the room ... i hope all that air is going outside and not in the same room your tent is... your central cooling should help .... how many plants you doing?? that u need one 1000 watt light and u wanna add another 600 watter with that 1000 watter???

LAX Skunky BwS said:

you dont say if your exhausting out of the room ... i hope all that air is going outside and not in the same room your tent is... your central cooling should help .... how many plants you doing?? that u need one 1000 watt light and u wanna add another 600 watter with that 1000 watter???

Click to expand...

riiiiggghhhtttt, need cool tubes man

LAX Skunky BwS said:

you dont say if your exhausting out of the room ... i hope all that air is going outside and not in the same room your tent is... your central cooling should help .... how many plants you doing?? that u need one 1000 watt light and u wanna add another 600 watter with that 1000 watter???

Click to expand...

ya im exhausting out the window which is like 1ft away from the exhaust fan. this isnt my first grow, but i just adjusted the set up. i originally was using a 600 and during the winter the heat didnt really become an issue. but now i have more space so i was trying to grow more plants.


TOUCHET: im very interested in your set up. kinda complicated, im high and i had to draw it so i could picture it. are you so to be clear you are running 3 fans, 1 exhaust, 1 intake, and one to help pull air from the ac vent to your light(s)? how big of a light are you running? do you have to keep your house ac on all the time or do you cool it periodically?

just do this

Seriously your temps are going to be WAAAAY better

Mazon said:

just do this

Seriously your temps are going to be WAAAAY better

Click to expand...

ya that looks like a little box maybe im wrong but i have a 4x8 area thats real hot. i would need a decent ac unit which costs money (im on a budget) and is expensive to run. my other issue with that is once i add the 600w i will be close to maxing out the circuit, so i cant really add a high wattage ac unit.

blunted1588 said:

ya that looks like a little box maybe im wrong but i have a 4x8 area thats real hot. i would need a decent ac unit which costs money (im on a budget) and is expensive to run. my other issue with that is once i add the 600w i will be close to maxing out the circuit, so i cant really add a high wattage ac unit.

Click to expand...

That small ac/unit used to chill up my entire room..

And running an A/c is not as expensive as you might think!

That was an issue with me... Sometimes the ac turned off the HPS because of all the power it was using... I simply connected it too a different outlet which is on a different circuit.

sometimes an a/c is the only way man. if your in a state thats feelin heat right now you may wanna start saving for a legit way to cool your room. i tried everything with my room and no significant change till i got an a/c. portable that is.

ya im thinking that since my room is right next to two big ass windows, i should just get a window ac unit. but my question still is how often or how long do you have to run that thing? all night or every hour or what?

I guess w/e it takes too cool your room down.. I got one of those analog timers so it turns on every 45 minutes and shuts off 15 minutes everyhour for aslong as my hps light is on