Question: I have been told my house has a 2 ton air conditioner. Does this mean my air conditioner weighs 4,000 lbs? Answer: The first air conditioning or cooling was done in theaters by hanging tons of ice in nets and circulating theater air across the ice to cool the air. In turn the ice would melt. They calculated that one ton of ice would remove 288,000 BTUs in a 24 hour period or 12,000 BTUs per hour. Your 2 ton air conditioner may only weigh 170 lbs but it removes 24,000 BTUs per hour of heat from your house. Tonnage refers to a rate of cooling.
Question: I change my furnace air filter in the winter and the summer because I have air conditioning. Is there a filter on my air conditioner outside that needs cleaned or replaced? Answer: There is no filter to change out by your air conditioner, but your condenser coil does need washed or back flushed with a hose. The condenser coil, which is similar to a car radiator, can get blocked with grass clippings or cottonwood from the trees. This is very detrimental to your air conditioner. We recommend a precision tune up and professional cleaning in the spring before you use the system for the hot summer months.