I usually start them under a florescent with broad spectrum grow tubes. For heat, I depend on them soaking up enough sunlight through a south facing window. I use those plastic flats with the clear cover on at night to moderate the temp swings, until the plants are too big to cover. Next winter, when my house is more finished, the mass of my fireplace should keep my overnight temps from dipping too much. I guess many gardeners use heat mats under their flats which would probably give the peppers an early boost, that might be just the thing for those Peruvians.
I'm thinking about skipping the flo light altogether and just using the natural light from the picture window over the kitchen table (since I am a cheap SOB at heart). Hey, that may also reduce the storm trooper population in my kitchen! Good questions, thinkin of goin in the ganja business?
Don't answer that...