Here is my 1 plus month recap of using Grandma Bear. It does a great job heating my house. I do need to use the ceiling fan to even out the temperature in the dining, kitchen and living room. It has a hard time holding a fire overnight unless I pack it to the max. But most of all it eats tremendous amounts of wood. I burn exclusively oak and birch. After the heating season is over I will probably calculate the cost of a modern stove with less cords vs Grandma with more cords.