I use the thermal cell and I run it the whole time I am in my stand.I dont even wrap upwaffers when done and one pad last me several hunts.Use it until it is completely white even a little blue works.Maybe if it is burning to hot you can call and send it back and they will fix it.I have hunted 15 times and finally used up 3 waffers and two butains.They do work well but turn it on about 5 minutes before you get out truck(with it outside)oh they will eat you alive waiting for it to start working.