Quote Originally Posted by CeeJay View Post
I am no expert by any means but most people on this message board recommend an under the tank heater for tubs or tanks. A lot of racks are built with belly heat so that the snake can have a basking spot to warm up and properly digest. Right now I have tanks and it wouldn't really help the health of my snake if the UTH was on the side. Is it wrong to assume that?
With a closed rack system, the use of back heat is acceptable because the whole back end of the tub gets heated, I have 2 closed racks, and my animals are doing fantabulous, now my 41qt rack has an open back, therefore I opted for belly heat.

Your are correct, when using tanks placing your heat source under the tank is optimal.