If your current home air conditioner is several years old, then you are likely stuck with an inefficient model that inflates power bills. Spending money on air conditioner maintenance and repair of your current unit can be a waste. Consider replacing your residential AC with a newer more energy efficient model that comes with an efficiency rating displayed. A one time investment can lead to monthly savings on your utility bills. Plus, newer models are guaranteed to be more reliable and better at controlling humidity.
The proper size of house air conditioning system is critical to achieve high energy efficiency. A home air conditioner that is too large for a room will operate in brief cooling cycles whenever the desired temperature is reached. Not only does this mean energy wastage, because the system keeps switching on and off when the desired temperature is reached, but these shorter cycles fail to remove moisture, increasing humidity and the potential for mold growth. A residential air conditioner that's too small on the other hand, won't be able to coo the room effectively during peak season, effectively, thereby defeating the purpose of installing a home AC. Plus, the system is forced to run continuously to meet the home's cooling needs, thereby inflating your energy bills. Look for a home air conditioner with a higher Seasonal Energy Efficiency Ratio (SEER). These are more expensive, but you'll be able to make up the costs in operating savings.
If looking for a home air conditioning system that offers maximum operating efficiency seems confusing, consult a professional residential air conditioning contractor. He will not only be able to advise you about the right home air conditioner for your house, but will also help with residential HVAC design and installation. You can also rely on him for installation of residential central air conditioners, HVAC installation, HVAC ducting and HVAC maintenance.