oven add on attachment

[philupthegastank]

anyone ever seen or used one of these:

(broken link removed to https://www.lehmans.com/p-4873-bakers-salute-oven.aspx) ? seemed interesting

 

[begreen]

I'm not a fan of any stack robber. My preference would be for a stove top oven instead. Not sure if this would work on double-wall.