So I have been using heat lamps for my snakes and I like how they provide a steady source of heat. However, I have to mist a ridiculous amount to keep humidity levels where they need to be. I want to switch to under tank heaters and I have already purchased them. I don't want to plug them in yet though because of how hot they get. What thermostats does everyone recommend? I don't know if I trust the ones at petsmart or not.