Electrically powered oven, in particular for baking or heating sliced bread, and heating procedure

An electrical oven comprising:

• a housing;
• a plurality of resistors in the housing electrically energizeable to radiate heat, at least one of the resistors having a longitudinally extending portion and subdividing the housing into an upper baking chamber and a lower baking chamber,
• a pair of longitudinally extending and round-section first bars horizontally flanking, extending generally a full length of, and slidably receiving the portion of the one resistor and forming a longitudinally extending seat therefor,
• a second longitudinally extending round-section bar above the portion, extending generally a full length thereof, and oriented so as to deflect radiant energy from the portion downward into the lower chamber, the first and second longitudinally extending bars surrounding the portion on both horizontal sides and above and exposing the portion generally only downwardly,
• second transversely extending bars bent upward and connected to the first and second longitudinally extending bars, and
• portions of the first bars bent inward and holding the portion of the one resistor in the seat.