My set up works out pretty well. I have a 6 ft. plastic table from Sam�s setting in my basement. My basement temperature runs around 64-68 degrees so I have one of those oil filled electric heaters that rolls right in under the table. The table top runs 72-74 degrees constantly which works like a heating pad. The bottom of the table don�t get hot enough to be a hazard, it feels to be maybe 80 degrees. I have a 4 bulb Fluorescent light on a chain so I can adjust it up and down, it is currently about 3 inches above the 6 flats of have seeded. Most of my tomatoes are up 6-7 inches cabbage, cauliflower, etc 3-4 inches and I had put the fan on them yesterday morning and they are looking stronger already.