it just makes sense to have two stoves. i came to this decision during a two week subzero cold snap one winter. i had to shut my only stove down to give it a serious cleaning. the exhaust blower was getting noisy. i had been running it wide open to keep the house warm. it took about 45 minutes to clean and the house dropped down to 39*. it took a while and alot of pellets to get back to 70*. if one fails i have a back up. i can run one while cleaning the other. i dont have to run one wide open during cold snaps, just run both and keep alot of pellets on hand.