We have a Blaze King, King Ultra, 2400sq ft home, built in 2017, single level, that stove is very efficient. I fill it each morning and it will keep the house 75 degrees+, still wood in it when I fill it the next morning. Never have to clean the ash during the burning season. The bottom of the fire box is about 6" below the door so no ash to speak of comes out when it is filled. We only burn wood from after Christmas, when the decorations and tree come down by the stove, to about mid-April. Only go through about 1-2 cords. Have a heat pump that is for the shoulder seasons. When we start burning propane is when I start burning wood.