Originally Posted by The Pup
BTW, the materials used on the KK are derived from the space shuttle program and related industries--and do not come cheap!
same with the bge.
The shape of the Egg reflects ancient technology in that it is designed to contain the heat with only a small http://en.wikipedia.org/wiki/Flue at the top to create a draft to keep the fire going. Today’s Egg is manufactured from high fiber http://en.wikipedia.org/wiki/Ceramic developed for the http://en.wikipedia.org/wiki/Space_shuttle_program specifically designed to reflect heat and this allows temperatures of up to 650 degrees http://en.wikipedia.org/wiki/Celsius (1200 Fahrenheit) to be reached. The external surface has a high gloss ceramic glaze applied to provide crack and weather resistance.
Large BGE, Small BGE, Mini BGE, Weber 22.5 OTG, yellow thermapen