We have all heard that Seasonal Energy Efficiency Ratio (SEER) ratings are important to consider when replacing your air conditioning unit. The higher the SEER rating, the lower your energy bills. But there are several other features that you may not be as familiar with in today’s units that you should consider when looking for a new unit: 1. Quiet operation. New units operate at much quieter levels, allowing you the temperature comfort as well as minimal mechanical noise. 2. Variable speed air handlers. With variable speed air handlers, the fan motor can run at different speeds depending on your cooling needs. This means that the unit provides you with the option of using less energy than a single speed system. 3. Fan-only switch. A switch that operates the circulation fan only will let you circulate air throughout your home when you don’t need conditioned air. This uses less energy than running both the fan and the compressor. 4. An automatic-delay fan switch. This feature will shut the fan off shortly after the compressor to insure you do not waste energy. 5. A high temperature rating (EER) A high temperature rating is another way of assessing an air conditioner’s efficiency. The EER shows how efficient the unit is at high temperatures, which is extremely important in Texas. EER ratings should be at least 11.6. 6. Thermal expansion valve (TXV). The TXV, which controls the flow of refrigerant into the evaporator, helps to improve hot weather performance. 7. Filter check light. This reminder light can help you keep your A/C’s filters clean. If you have more questions, Spencer Air Conditioning and Heating invites you to call us for all of your HVAC needs. Reach us today at (972) 446- COOL (2665) or by logging on to spencerairconditioning.com to find out how we can serve you.