A week or 2 ago I had asked for advice heating a rack. I ended up going with 11 inch/ 20 watt as back heat - in the hopes of creating a warm ambient temp, and 3 inch/6 watt as belly heat to create a "hot spot". The 11 inch needs to be regulated otherwise it is so effective that the 3 inch doesnt even turn on.

Thanks for the advice, here's a couple quick shots.