Evaporative air coolers blow air across a damp surface, which causes the air to cool down as it absorbs moisture. The system works in much the same way evaporating sweat cools down the body. Depending on conditions, these coolers can reduce air temperature by more than 20 degrees.
According to Chris Landers for How Stuff Works, evaporative coolers work best when humidity levels are extremely low, allowing more water to be absorbed by the air passing through the unit. Humid air is already close to the point of saturation and cannot absorb much more moisture, so its temperature will drop by a much smaller amount. In addition, using an evaporative cooler in a humid climate can cause excessive condensation that can damage walls and furniture.Learn More
A 2-ton air conditioning unit is capable of cooling between 800 and 2,000 square feet of interior space. A building's energy efficiency, including air leaks, insulation and shading, and the climate it's located in impact how many tons of air conditioning are needed to cool it down.Full Answer >
A 5,000 BTU air conditioner cools 100 to 150 square feet. The amount of sunlight, the number of people that regularly occupy the room and the purpose of the room affect the efficiency of an air conditioner.Full Answer >
One refrigeration ton, which is approximately 12,000 BTU or 3.517 kW, can cool about 500 square feet of space. However, other factors, such as the number of occupants, should be taken into consideration when calculating the cooling capacity of air conditioners.Full Answer >
The Trane air handler directs air from inside the home across a heat exchanger and through air-conditioner coils before a system of ducts distributes it back into the house. Depending on which system is working at the time the unit heats or cools the air in the process.Full Answer >