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Heat load calculation is a fundamental skill for HVAC designers and consultants. Consider that space cooling is among the highest energy expenses in buildings, especially during the summer. However, to properly size a space cooling system, first we must know the amount of heat that must be removed - this is precisely the purpose of heat load calculation.
Heat in buildings can come from internal sources such as electrical appliances, or from external sources such as the sun. A heat load calculation considers all sources present and determines their total effect.
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