26 accommodating the floor 18 details of optional sockets 34 that may be utilized in the present invention are shown in fig7 a 7b 8a and 8b an oven door 30 hingedly attached to the oven 12 in the conventional manner the front of the oven door is shown in fig1 and 9 details of the door handle are shown in fig1 10 and 16 fig1 and 16 show complementary sets of grooves 32 in the back of the door 39 and complementary sets of grooves 26 in the side wall 20 as shown in fig1 the complementary sets of grooves 26 in the side wall 20 and the complementary sets of grooves 32 in the back of the door 39 are designed to complement each other at 127 and 133 and at 125 and 131 to facilitate restricting heat to the cooking chamber 14 as shown by overlapping when the floor 18 is inserted between the grooves 26 and the door 30 is closed the other side wall 22 is not shown in fig1 fig1 and 12 shown an optional oven door lock mechanism 60 the oven door 30 has at least one set of grooves 32 disposed therein to accommodate the floor 18 slidably engaged in the complementary set of grooves 26 the at least one window.