USA/Technical Information/FAQs/Air Conditioning
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FAQS: Air Conditioning

What is a SEER? Seasonal Energy Efficiency Ratio. This is like a MPG rating on a car. The higher the number the more energy efficient. New units have ratings from 10 to 17 SEER, older units had ratings as low as 6 SEER.

What is an AFUE? Annual Fuel Utilization Efficiency. The higher the number the more efficient it is. New units have ratings from 78% to 96%. Older units have ratings of 55 - 60%.

What is HSPF? Heating Seasonal Performance Factor The higher the number, the more efficient. New units have ratings from 7.0 to 9.4.

Which is best, Heat Pump or Natural Gas Heat? That depends on many things. The price of Natural Gas & Electricity, how well your house is insulated, how your duct is installed and insulated.

When I buy a new Air Conditioning Unit, do I need a new indoor coil? In most cases yes. If you don't, the life of your Air Conditioner may be shortened, not work properly and it could use more electricity than necessary.

What is the best way to clean duct? Power vacuum with HEPA filtration along with a reversible power brush. The HEPA filter cleans the air and the brush scrubs the duct clean.

Is there an Air Conditioner available that uses a new, safe type of Freon? Yes. At this time Carrier has had a unit available since 1996.

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