One of the hardest parts of smoking is keeping the temperature constant. I recently learned that you can purchase a Propane Temperature Control Valve from Sentry Propane which will control the temperature of your smoker. The unit is designed for turkey fryers and has a sensor which is installed in the cooker and is connected to an adjustable control valve in-line between the tank regulator and burner. The unit costs about $25 and can be ordered on-line at www.turkeyfryers.com. I have one on order and will follow-up with performance report once it is installed and working.