yeah dont know how true that is, as long as its over 70 and below 95 most corns will be fine although with a digital probe there is no reason to go over 90, and i dont care what anyone says, corns are easy and will do fine in many temperatures, a regualr human heating pad on the lowest setting WILL work, as long as the temps in you house arent over 80 or 85, and if they are dont use anything!! . as long as your snake is eating and not puking, and shedding fine thats all they need, if they arent doing those thingsfine, than obviously you will have to adjust something, put insulation between the uth and tank, use you head, ive spent alot of money on gadjets and found them to not be nessecary most thermostats are not accurate and for examp,e if they are set for 90, it isnt uncommon to shoot the temp gun where the thermostats probe is and hit 100, 101 degrees. you dont HAVE to do anything, if your snake isnt eating crapping and shedding, than obviously you will have to use your head and trouble shoot, remember these things survive in many diff temps, in many different places. not trying to piss anyone off.... sorry if i did