Just like the title says, i need a good on/off thermostat to control the electric/oil heater in my reptile building. I have never looked into buying one before as all of my current stats are proportional, but I dont want to spend that much if I dont have to. If the prices of the stats you recommend are close to a proportional, I might just order another herpstat and use it in on/off mode. Just looking for what is available and thoughts on them. Thanks in advance.