Many different features and designs influence curing uniformity, including the thermal insulation, accuracy of the temperature controller and thermocouple, thermocouple placement, location of exhaust outlets and fresh air inlets, through-metal heat transfer, and chamber pressure. Although each parameter affects the ability of the equipment to achieve a given temperature tolerance, factors such as the air volume, distribution of the air through the work chamber, and shell losses play a key role in keeping the heat uniform within the work chamber, ensuring that each area within the oven receives the same air temperature regardless of its location.