Summers coming... how do i keep it from getting hot!

I've got a grow room set up in my garage... its not a huge garage but its good sized enough that i assembled a grow box made out of wood in there. my box is about 44" wide, 21" deep" and 6' high... i made it to be self enclosed, my buddies came up with the great idea of popping holes in the side and using pc fans to vent the beast... the issue i've been running into is keeping the ambient temperature of the garage to in between 75-85 degrees... during the day it can get upwards of 95, to the max i saw one day of 100 degrees!
At night i open the garage door leadin into my house and use 3 big fans to create a current of air flowing from the screen door in the back room of my house to blow cold air from outside into the garage... the issue is during the day when its hot and i'm not home cuz of work, and i keep the door locked, for obvious reasonss.... any ideas on how to keep the beast cold during the day while im gone without dropping 500 bucks on a AC unit?

Hey G'ma,

How about canabilising an old frodge /Freezer. Take out the compressor and buy a fan to blowthe cold air about.

Could prob pick up one from scrapyard for a few dollars/pounds whatever.

Hope that helps ya.


All the best


M0r1arty

Sorry man lost my little finger there with the spelling.

Fridge ---fridge.........

M0r1arty, thank you sir!
you know couple things i didnt mention... i currently have a 400 watt hid in there... and i did buy a less expensive ac unit (the one that attaches in the window)... the one thing i didnt think of is while it blows out cold air in the front, it blows out hot air in the back...

if you want to control heat get a sealed reflector..some excaust tubbing an a blower...this will at least take care of the light heat prob...but you didn't say what part of the country you were from or even what country all together...but i know in the u.s. sw we have to be real carefull in the summer where temps avergely hit 110f...we have to use those 500 buck ac's

mr grow and smoke thank you...

i live in southern california... in a more arid area... i know i'm pretty much fubar... i figured i'd see if anyone had any great ideas before i got rack up the credit card a lil more....