Mine is 36x18x18 and this is my setup. I am using a repti fogger by zoo med on a timer every 45 minutes to add humidity. I'm using two bulbs and two uths. I have a 100W and 75W CHE in the lamps. And I have a thermostat controlling my uths. All of this combined keeps my cool side at 75 and hot side at 80 with ground temperatures of 90 and 80.