Air conditioning capacity is measured in “tons,” a unit derived from the amount of heat required to melt one ton of ice in 24 hours. This value quantifies the cooling power of an air conditioner. For example, a 3-ton unit can remove approximately 36,000 British Thermal Units (BTUs) of heat per hour from a conditioned space.
Selecting an appropriately sized air conditioner is crucial for efficient and effective cooling. An undersized unit will struggle to maintain the desired temperature, leading to discomfort and increased energy consumption. Conversely, an oversized unit will cycle on and off frequently, resulting in poor dehumidification and wasted energy. Historically, reliance on inaccurate estimations led to common sizing errors, highlighting the need for precise calculation methods.
