Our pellet insert will work off a deep cell battery, in case of a power outage. Our fire place has a cleanout in the basement and the chimney actually has 2 flues. The electric cord plugs in down in the basement, DH ran electric over to the area and put in an outlet just for the pellet stove. We have the option to put another pellet stove in the basement to help with heating the house if we want to. DH seems to think that if the basement was heated to a constant temp, it would help the furnace be more efficient...