First time user long time reader. I am going to upgrade my F100 ( inside a fireplace ) want to move outside on the hearth. Looking at the Oslo I am in a 1250 Sq ft Cottage 10 mi from lake Erie and 40 mi from Pen border. Insulation is good in the ceiling but not in the walls. Good windows but on a crawlspace which is semi insulated. Have electric heat and looking to save on that.Oslo to big we do lose power quite often. thanks in advance have learned alot from this site