Well, you should keep them in a brooder(draft free box) with quail starter feed, a waterer, with marbles in the water so the chicks can still get water but can't drown, and some clean bedding(pine works best) If you don't want to use a heat lamp, the only thing i can think of is using a small room heater that can keep the brooder at about 98 degree's without burning. Also the chicks NEED light to see their food, and water, and eachother, so you will need some sort of bright light source on them. I say just use a heat lamp.They need the heat source for about 4-5 weeks or until they are fully feathered. 60-75 watts would be the best option. Just make sure the floor is 98 degrees.