I put a 4' natural sunlight ,duel, tube florescent light ,vertical in a corner and 4, 60 watt cfl's above in a homemade reflector. you don't have to worry about heat all that much with fluorescents. With cflâ??s, just make sure wherever you are growing it is well ventilated. You should not over heat with cfl's. As you can see in my â??first indoor grow album. The back of your hand is a perfect example of testing to see if the lights/heat are to close to the plants.
Regular white and even yellow ( cool, warm ) fluorescents can be put a few inches away from the tops of your babies. cfl's put off just a tad more heat, 75f I believe is what a 120 volt 60 watt cfl puts out. A regular white 4' florescent tube puts out less then 60f.
With 4 cfl's and a dual 4' white florescent light, keeping my room under 80f is no problem.
Although, If you have the money, time, room and resources? I would invest in the right equipment and only use fluorescents for vegging. Just my :twocents:

With proper lighting (400 to 1000 watt hps, hid's),These put out some heat so, ventilation is key and they should go hand in hand. Cooling a room is ok but extraction of the air in the room is very important.

Here are some books, sites and authors that can help.
Cannabis cultivator by Jeff Ditchfield
Urban garden magazine/ [Urban Garden Magazine | Cultivation indoors and outdoors using hydroponics and organicsAwesome indoor op tricks and tips on ventilation. can also help show how to set up your indoor layout.
Marijuana growerâ??s insider grower guide by Mel frank- this mans books are very informative for the first time grower or the advanced grower.
Any of the cannabibles by Jason King I suggest all three volumes.
growing marijuana is not complete rocket science but it does take a fair amount of time and effort. The more you do it and the more you experiment with your environment the more successful your garden will be

Good luck and good growing. :thumbsup:
xsnoder Reviewed by xsnoder on . first time growing (I need help) hi so i have seeds and i have started them using distilled water. i even bought a how to grow book. but my stems keep bending and to be honest i dont know where i can even get a clone. i need help. i am in rio rancho but stuck on what to do. the root system seems to small for some that i am trying to grow and i did transplant so the can grow faster? Help....Help....Help Rating: 5