Here's some instructions for the Ranco...make sure you get the 120 volt model, not the 24 volt. I have two Herpstat ND's and I love them, I would go all Herpstat if I could afford it, but I run two or three Rancos as well.


Two wire non-grounded
http://www.susanminor.org/forums/sho...g-Guide&p=1002

Three wire grounded
http://www.rcreptiles.com/blog/index...1000_thermosta