Room air conditioners like all air conditioning units are rated by the number of British Thermal Units (BTU) of heat they can remove per hour. Another common way of rating air conditioners is by the "ton," some example are 5,500 BTU per hour or 14,000 BTU per hour.

Getting the right size room air conditioner for your application is crucial. If you get the wrong size you can easily waste large volumes of electricity. The size of your air conditioner depends upon:

1How large is your home and how many do you have?
2How much shade do you have? Do you have shade on your home's windows, walls, and roof?
3Are the ceilings and walls of your home insulated properly?
4Do you have air leaks?
5How much heat do you, the occupants, and appliances generate?

Remember the key to any air conditioners efficiency and performance depend on you properly matching the size of the AC unit to your specific application.

Company Resource:   Air Source Heat Pump, Modular Air Conditioner
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