To effectively cool a room, it is necessary to have an air conditioner with the correct capacity. To cool a 435-square-foot room, a 10,000-BTU air conditioner is needed.
Many people believe that an air conditioner that is too large for the intended amount of space provides better cooling, but this is not true. An oversized air conditioner wastes electricity, and it does not cool as effectively as a unit of the correct size. An air conditioner that is too large lowers the temperature in the room, but it does not remove as much humidity as a unit of the appropriate size.Learn More
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 >
An air conditioner suitable for a 12 by 15 room has a minimum cooling capacity of 4500 BTU. Estimate this by multiplying the area of the room by a constant: 25 BTU. Therefore, 12 x 15 = 180 square feet. When 180 is multiplied by 25, the result is 4500.Full Answer >
Many factors determine the number of British thermal units needed to heat a house, but in a moderate climate with a high-efficiency furnace, a 2,000 square foot home requires a 50,000 to 60,000-BTU furnace output. The general rule of thumb is that furnaces need to provide 25 to 30 BTU output per square foot in moderate climates and 40 BTU output per square foot in colder regions.Full Answer >