I recently bought a house with an old Suburban wood stove. It has no dampener to shut at bedtime. It has a fan switch on the bottom left corner and a Hi/Low rheostat on the front directly under the doors. On the inside of the stove (I assume the mechanism is controlled by the rheostat) is a rectangular metal box with quarter sized holes along the top. I built my first fire in it last night and turned the switch all the way past Low before bed. Had some coals this morning. Any and all help is appreciated.