How many models and brands of pellet cookers have sealed doors and insulated cooking chambers?
The Traeger Timberline has double walled stainless insulated cooking chamber and gaskets on the door. At $2,000 to $1,700 it is more than some but has a sealed and insulated design.
The Cookshack FEC100 is stainless inside and out and has "850 degree spin glass insulation" with sealed seams. At $4,695 it is not a casual purchase.
How many others are there? What are the advantages of sealed and insulated construction beyond saving pellets. Does it alter the taste of the food? improve it? Thoughts? Ideas?