ZEPHAIRE-100-G Single Gas Convection Oven – Liquid Propane, 50,000 Total BTU, CONSTRUCTION, Fully welded, extruded angle iron frame keeps oven square and true, Blodgett convection ovens maintain their structural integrity even after decades of rigorous use, Double porcelainized interior surface prevents hidden rust and prolongs the life of your oven, Doors are triple mounted directly into the full angle iron frame so your doors always stay aligned and tightly sealed, preventing heat (and your heating dollars) from disappearing into thin air, Cavity lights and glass doors allow you to check the progress of your product, OPERATION, 50,000 BTU/hour, Two speed fan motor, Standard SSI-M control - solid state infinite control with separate dials for thermostat and timer, Optional SSD control - solid state digital control with LED display, Cook & Hold and Pulse Plus®, CAPACITY (3.25" pan spacing), (5) full size sheet pans in left to right positions, (10) 12" x 20" x 2½" steam table pans