Smoke your favorite foods at the touch of a button. Masterbuilt 20051311 GS30D 2-Door Propane Smoker. For example, if you have a circular grill, using the insulation blanket can be a good way to save on fuel without adding a bunch of extra weight. I got more insulation (left over from my house actually). ... Masterbuilt MB20100513 Insulated Smoker … Sure the coverings melted on the inside. Reply. If there was ever a Winter to insulate your smoker I would think it is this one!!! It is one of the best propane smokers of this type you can get for under $200, and this review will let you know why. RealTreeRubicon says: January 10, 2015 at 2:41 pm. The insulation was fine, even over the firebox. I wrapped the insulation around the body. The Masterbuilt 20051311 GS30D 2-Door Propane Smoker is a cheap vertical smoker with a lot of qualities to it. Simply plug the smoker in and it does the work. Propane would be the same. Insulating a Vertical Smoker vs. a Horizontal Smoker Whether you have a vertical smoker or a horizontal smoker won’t affect the material you use as much as the grill’s shape. Smoker Reviews and Information. Propane Smoker Pellet Smoker Fryers Smoker Kit Smoker Cover Check out our other products! Reflectix method worked amazing. Made a box around my masterbuilt by poking a hole and using zip ties around the top to connect. I cleaned off the smoker and sprayed it all over with high temperature paint to avoid any rusting under the insulation.