Haier RTC1700 1700Watt ExtraLarge Capacity Convection Oven This extralargecapacity commercial oven holds a twentypound turkey and accommodates a standard halfsheet baking pan. Three heating elements, on the top, bottom and back of the unit, speed roasting and are better for baking than the standard oven. The builtin fan, which constantly circulates the heat inside the oven, maximizes the oven's cooking efficiency without increasing the temperature. Because the air inside the cooking chamber does not remain static, as in traditional bake or roasting ovens, the convection oven cooks foods evenly, faster and with less energy, sealing in delicious flavors and juices. Tip Using ceramic or glass cooking pans will allow you to lower the cooking temperature by 25 degrees Fahrenheit, saving time and money.