There seems to be little that I can do about this. The address is at the bottom of this page. The Solar Cooking Archive. Fairly decent graphics and text. Bake oven Seminar with Alan Scott Masonry Heater Association Annual Meeting, Las Vegas, March 1995.
Interesting article gives some good info and links to other places.
Includes some photos and notes on technique for masonry oven use. Hot-Rock Cooking Party. The Heat-Kit Bake oven Option. New design optimizes performance. May be of use to some folks.