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Cooling load

Also known as room cooling load

Cooling load is the rate of heat that must be removed from a room or building to maintain the chosen indoor condition.

Cooling load is the heat-removal duty calculated for a room or building at defined indoor and outdoor conditions. Glazing, orientation, solar gain, room volume, insulation, occupancy, ventilation, infiltration and heat from lighting or appliances can contribute. Floor area alone does not establish it. Cooling load is separate from heating loss, product cooling capacity, electrical input, energy use and an overheating assessment.

Category

Air conditioning

Applies to

Heat pumps & AC

Last reviewed

28 Jul 2026

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