Last year for elk season I took a 120qt Coleman extreme last week of sept in Colorado filled it with frozen 1 gallon jugs threw a old sleeping bag inside to take up dead space closed the lid duck taped shut opened it 8 days later and the jugs were still 3/4 frozen solid. Sitting inside my suv...
I have a big green egg. Pros lifetime warranty, doesn’t need electricity to operate. No parts to wear out. Works great in cold temperatures. Cooks from low temps 225 to high temps above 800 degrees.