I HAVE AN OLD FREEZER THAT IS MY BABY ROOM.
I CUT A HOLE IN THE TOP, AND INSTALLED A BATHROOM EXHAUST FAN, AND HAVE IT SET TO A THERMOSTAT.
I USED THE POWER CORD AND ATTACHED IT TO A POWER PLUG INSIDE. I RUN CFL'S AND A GROW LIGHT.
IN THE BOTTOM, I CUT A SMALL HOLE FOR MY INTAKE.
I DRILLED A FEW SMALL HOLES IN THE BOTTOM ALSO FOR THE WATER TO DRAIN OUT DURING WATERING.
IT SITS OUTSIDE, SO I DON'T WORRY ABOUT THE WATER MESS.
GOOD LUCK