K402 Firebox Door


The K402 door is a small firebox door suited for masonry cookstoves and batch box rocket mass heaters.  The door features gasketed connections and air control.


Inside Width:      9 7/8″ (250mm)
Inside Height:     11″      (280mm)

Frame Width:     12 1/8″  (310mm)
Frame Height:    13 3/8″ (340mm)

The interior measurement refers to the portion of the door that fits into the opening.  We recommend making your masonry rough opening 3/4″ larger than the interior dimensions.

Gasketing and mounting screws are included with the door.

Download PDF of K402 Spec. Sheet

Weight 352 oz
Dimensions 13 × 14 × 4 in
Shopping Cart
Scroll to Top