In lo these two years that I have had day old babies I have used the cheapest set up ever, but took the expensive way to get there. I started out with a heat lamp, used a radiant heater, but my husband (who was not really on-board with My Chicken Thing when this started) would not abide these devices being left plugged in unattended. I wound up putting them in a tote bin next to the electric fireplace (which he DOES allow to run unattended). Both years so far nothing but happy, healthy, hardy birds.