Heating and cooling load calculations are performed to determine the necessary capacity of heating and cooling systems that can sustain the desired conditions within a conditioned space. To calculate these capacities, it is essential to gather details about the design indoor and outdoor conditions, building specifications, characteristics of the conditioned space (including occupancy, activity levels, appliances, and equipment in use), and any unique requirements of the application. For comfort-related purposes, indoor conditions are typically set based on thermal comfort criteria, whereas in industrial or commercial settings, they are defined by the specific processes carried out or the products being stored.