I'm late to the Pellet Party but I am having an M55 Cast insert installed next week. Very excited. Trying to stay on top of all the little issues I see people posting about the stove. It's a new model so I can understand there may be a few kinks to work out. Lot of money so i'm hoping it does a good job heating my home. I have a 2400 sq ft colonial.. stove will be located in our living room which is over the garage but open to most of the house. Question: has anyone used a room to room fan to try to move hot air between rooms for better airflow? If so any recommended brands?