I checked the Maytag owners manual for the Dutch Oven Range. Cooking a turkey on retained heat requires that the oven be preheated to 450F, For a bird of 7-10 lbs, the gas is left on for 10 minutes per pound; for 10-15 lbs, 7 minutes per pound; for 15-18 6; for 18-20 lbs, 5 minutes. For all of them the roasting time with the gas off is 2 hours. Step two says, "Fowl should be placed in the oven uncovered. Place cover ten minutes before gas it turned off. Add one half cup water. OMIT water if chicken is young and if a crisp brown skin is desired."