What is the maximum temperature differential allowed between make-up air and conditioned space air during the operation of commercial kitchen exhaust systems?

The maximum temperature differential allowed between make-up air and conditioned space air during the operation of commercial kitchen exhaust systems is typically set at 10 degrees Fahrenheit. This threshold is significant for several reasons, primarily focusing on maintaining effective operation of the exhaust system while preventing excessive energy loss and ensuring comfort.

A differential of 10 degrees helps ensure that the introduction of make-up air does not drastically alter the temperature in the conditioned space, which is particularly important in a commercial kitchen environment where temperatures can fluctuate significantly due to cooking activities. Keeping the temperature difference within this limit aids in maintaining the efficiency of the heating, ventilation, and air conditioning (HVAC) systems. It also helps in managing airflow effectively, ensuring that the exhaust system can operate optimally without causing drafts or discomfort for the staff working in the kitchen.

While other temperature differentials may be considered in different contexts or applications, 10 degrees Fahrenheit is recognized as a balanced approach in the specific case of commercial kitchen operations. This allows for sufficient ventilation without compromising the overall temperature control and comfort levels in the space.