Pathline Products Fireplace Doors For Superior-Lennox Fireplace Fits BC36, BR36, HC36, RD36, BBV36, BCF36 Please Do Not Order Unless Your Model Matches One Listed. These doors will not fit your unit unless you have one of the models listed. Sometimes A Tag Containing Model#, Make, Date Of Manufacture Can Sometimes Be Found On Inside Sheet Metal Wall Of Firebox. Inside Frame Measurement Requirement: Width: 36" Height: 20-3/16" to 21-11/16" Available In 3 Finishes (Black, Silver, Polished Brass)