Watt the BTU . . . ?
When deciding whether to buy or hire a portable air conditioning unit, you may come across the term ‘BTU’ or alternatively Kilowatts. BTU stands for British Thermal Unit and in the world of HVAC is the amount of heat that an air conditioner can remove from a room. If an air conditioner’s capacity is measure in Kilowatts then one Kilowatt is equivalent to 3,412 BTUs. For the science-minded among us, One BTU is the amount of energy needed to raise 1 pound of water 1°F at sea level. Why are BTUs or Kilowatts important when choosing an air conditioner? Having the correct number of BTUs for the space you need to cool means that the room will be cooled efficiently. It should also be borne in mind that as the BTU rating increases so does the weight, size and cost of the air conditioner. Too high a BTU means that although the room will cool quickly, the unit will cycle on and off once the temperature is reached and to keep it at that temperature, overworking the