it would be good to get more technical specifics on the operation of your device
(1) how is contact between the grill and the food set? is it a single hinge? is the height adjustable?
(2) is air free to circulate on the sides of the food--is it a closed or open compartment?
(3) how does the power draw of your device compare to a sous vide machine at moderate to low temperatures, e.g. 135f for eight hours?
(4) what is the usable volume of the compartment?
thanks!