i want to get either a thermostat or a rheostat to control the temps in my bp enclosure. from what i have read a thermostat controls the temp by turning your heating device on and off and a rheostat controls it by controlling how much power the device receives. i am wondering if anyone has a preference toward one or the other and why. i've heard that some people prefer the rheostat because it seems to keep a more consistent temperature since it isnt turning on and off all the time. what do you guys think?