A concern I have about pellet stoves is the complications of the machine, too many parts to wear out and fail, causing you to buy this years flashier, more flimsy model. The pellets are a commercial commodity, subject to price gouging, synthetic shortages, and you again, have a fuel that came to your door via a network of producers,accountants, marketing staff, wholesalers, retailers, etc.,etc. When you buy your firewood from the man down the road, you feed him, get warm, your fuel dollars circulate in the local economy(at least the portion he doesn't spend at wally world) your personal politics can matter. Buy a Vermont Castings or other reputable stove with no moving parts other than doors and draft system, burn big chunks of wood that are properly dried and you have a much more efficient heating system.