You need to get a thermostat for the heating pad. Without one it will get hot enough to burn and eventually even kill him (130+)

Here are 2 good thermostats, stay away from thermostats sold in pet stores they are overpriced junk.

Budget http://www.amazon.com/gp/aw/d/B000NZZG3S

High quality
http://spyderrobotics.com/home/products.html

Does the thermometer that you are using have a probe or is it just a stick on? Heating pads do not change the temperature of the air in the cage so you must have a probed thermometer like this one from Walmart ($12)



Also a fuzzy is probably too small, most BP's can eat hopper mice or rat pups right out of the egg. Do you know how much he weighs?