Getting my viv this weekend so I have time to set it up before I get my corn. I have searched the threads but cannot find an answer to this question. If you are using a bulb to heat the viv, is a dimming thermostat the only thing you can use to regulate the temp of it. Oh and i saw one reply which talked about dimmers as a separate thing to use. They were much cheaper than a dimming thermostat but I don't understand how they regulate the temp of the bulb. Can anyone help? I haven't got huge amounts of spare cash and if there is something cheaper than a dimming thermostat that I can use without running the risk of cooking/freezing the poor corn i would really be grateful if you guys could let me know. 