Central air conditioning was once considered a luxury. Solar warming is changing all that. Most homeowners now consider central air conditioning a necessity. Very few people would consider building a home today without it.
Central Air conditioning systems are made up of two units, one inside and one out. The inside unit, or air handler, moves air through the house and absorbs heat from the air passing through it. The outside units, or condenser, discharges the heat from the home into the atmosphere.
The efficiency of Air Conditioners is measured in SEER. (Seasonal Energy Efficiency Ratio) Older units had SEER ratings as low as 6. Today, units are much more efficient with SEER ratings as high as 18. The overall efficiency of the system is determined by the matching of the outside condenser and the inside air handler.
The efficiency is significantly affected by the quality of the installation. It has been estimated that as much as 50% efficiency loss can result from poor duct installation. Two type duct systems are available, metal or compressed fiberglass, known as fiberboard.
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