Does anyone have an insert in their fireplace at their camp or their home. I was just curious how well they would heat a cabin of about 900 sq. ft.? Also I would imagine it would take a pretty long time to get some heat when you first start it up. Do you use a back up heater to help warm it up at first? Does it have a blower in it? Any information would be helpful as I'm trying to decide what to replace my old kerosene heater with.