Interesting design information

[fishtail-99]

Richard Johnson is forever trying to impress the world with his design and engineering prowess. However, you wonder why he chose portland cement to manufacture his kookers.

According to Kiko Denzer's book on building adobe/earth/clay ovens, portland cement is an inappropriate material for building an oven. He states that portland cement begins to break down at 700 degrees and repeated heating and cooling cycles will cause it to crack. Sounds just like Richard Johnson's cookers, doesn't it?

So, this begs the question: Is RJ really an engineering genius and he deliberately used a material that he knew to be inappropriate, or is he really just an engineering moron who didn't know that portland cement was an inappropriate material for this use? It probably doesn't really matter since he doesn't honor the lifetime warrantee anyway...

[The Spanker]

Bind the pieces together with chickenwire + cover the external cracks with tile + label internal cracks "crazing" = NO PROBLEMO

There's the genius.

[Fetzervalve]

He is WAAAAY to busy testing R values, inventing Japanese words, and committing international fraud to worry about what kind of incidental material gets dumped into those molds. Sheesh, give him a break!