We currently have a heatilator A36 fireplace with a fan kit. My wife and i purchased this house last year with this prefab already here. We are looking at quadrafire insert. I just would like some feedback on this conversion. I know I need to get the chimney relined and the house we have is 3500sq ft. So my dilema is the install of the stove and relining could equal out closemto an outdoor wood burner. Please help!