The 40 inch Thermotemp XL smoker makes propane smoking simple and safe. No more monitoring or adjusting temperature. Patented ThermoTemp innovation lets you set the temperature and walk away. The safety shut-off valve provides a safe smoking experience while the four smoking racks provide plenty of room to smoke up to 16 chickens, 6 turkeys, 8 racks of ribs, or 8 pork butts. Master the art of smoking with Masterbuilt.