The new Unisource Even-Bake™ Airflow System has removed all air louvers in the baking chamber, which means no adjusting is required to achieve an even bake from top to bottom on the rack. The exclusive airflow speed setting prevents product drying, from delicate pastries to the heaviest of baked products. You can save thousands on adjustments by upgrading to an oven without louvers, the company says. The oven includes a lifetime warranty on the heat exchanger and dual high-capacity steam system. For more information, call 888/443-8782.