Never seen a double oven on a Chambers ,oven cavity is actually cast iron. Retained heat feature. The bottom of the oven is very heavy, but slides straight out with the door open. Like the racks slide out. In the storage on the side it will have a pilot valve, with screws to shut off individual pilots. 1 for the top, 1 for the deep well, and 1 for the oven. The pilot should shut off without moving the stove, then simply unscrew the compression fitting. Once you have done that use a fine needle a just clean out the orifice. Don't put too much presssure on it. Most of the time it is ash or dirt on the end of the orifice. Blow it out and change the thermocouple. DONE.