Find the 36BDVT (Serial# B21H / I0B / B22A / B0B) Majestic Gas Direct Vent Fireplace in the diagram listings shown below. Each diagram will take you direct to the 36BDVT (Serial# B21H / I0B / B22A / B0B) Majestic Gas Direct Vent Fireplace repair part listings and part views for your model.