2200 Sq Ft Pellet Stove Hopper Extension 2200 Sq Ft Pellet Stove Hopper Extension Increase your 60 lb. Pellet Stove capacity to 140 pounds! That's a whole 3 1/2 bags worth! Stop the worrying if stove will run out of pellets at night or while you are at a long day of work. 133% longer burn time--This is the cheapest insurance against the cold!! Give winter a hard time instead of yourself with less dust, dirt and work!!!!