How many doors in the firebox does the NBBD (Hondo and SnP Pro) have?]
The NBBD firebox has two doors. It has a door lid on top that opens like the one in the cooking chamber. This top firebox door has a flat shelf welded on top for warming things directly over the heat. (Editor–the current model of the SnP Pro does not have this warming shelf.) The top firebox door opens wide and holds open. The NBBD also has a door on the end. The door is fitted with a latch. The ‘butterfly air baffle’ (the inlet air adjustment device) is in this door.
