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Air Conditioning Contractors License # CAC053845 • 5710 W. Waters Ave. • Tampa, Florida 33634

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Air Conditioning and Heat Pump Efficiency Ratings

Its easy to feel overwhelmed by the array of efficiency ratings, abbreviations and acronyms used to describe or explain heat pumps and air conditioners! We'll tell you what they all mean and how you can use the knowledge gained to make a more informed choice on your comfort needs.

Efficiency Ratings

SEER- Seasonal Energy Efficient Ratio. This is a system for rating the efficiency of cooling equipment. It is calculated by dividing the cooling capacity of a continuously operating air conditioner by the electric power input. The higher the SEER, the less you unit will cost to operate.

HSPF- Heating Seasonal Performance Factor, This measurement is similar to SEER, but it measures the efficiency of the heating portion of your heat pump. Like the SEER, HSPF industry minimums have risen in recent years. The current industry minimum is 6.80 HSPF.

Sound Ratings

In recent years, HVAC equipment has not only gotten more energy efficient, it has gotten quieter. Although sound does not effect the efficiency of a unit, it can certainly affect your comfort. If your unit has a low sound level, (you and your neighbors) will hardly notice when it is operating.

 db- Decibel. A term to describe the relative loudness of a sound. Typically, heat pumps and air conditioner are between the sound of a human voice(70 db) and a blender(88 db).

SRN- Sound Rating Number. A unit based on ARI tests. Average sound rating range from 74 to 80 db. The lower the SRN rating, the quieter the unit.

General Industry Terms

HVAC- Heating, ventilating and air conditioning. This term applies both to the heating and cooling industry and to the products they manufacture.

ARI- Air Conditioning and Refrigeration Institute. A non-profit, voluntary organization comprised of HVAC manufacturers. ARI publishes standards for testing and rating heat pumps and air conditioners and ensures a level of quality within the industry.

DOE- The Department of Energy. This is the federal agency that sets the HVAC industry efficiency standards.