Future owner with questions

[mrshawt]

You can buy a light dimmer for $10 at the home depot or lowes. You just plug the dimmer into the t-stat and one of the heat pads (cool side) into the dimmer. Tada! You can now dim down the cool side temp

In order to set a sufficient temp in case the tstat fails, you first plug the heat pads into their respective dimmers. Set them at a point where the hot side temp is about 95 and the cool about 85 (This may take a while.). Then, you can hook it up like Kaorte said.

This way, if the tstat fails in the open position, your dimmers will regulate the temps only up to 95 and 85 until you notice.