Wednesday, December 7, 2011

What is SEER?

Q: What is SEER?

A: SEER stands for Seasonal Energy Efficiency Ratio. It’s a number that describes how well air-conditioning equipment works. A higher SEER means better efficiency and lower energy bills. SEER is calculated by dividing the amount of cooling supplied by the air conditioner or heat pump (Btu’s per hour) by the power (watts) used by the cooling equipment under a specific set of seasonal conditions. SEER ratings are determined in a laboratory where the exact set of indoor and outdoor conditions–specified by the US Department of Energy–are guaranteed to exist. Because each piece of cooling equipment  is  valuated using the exact same conditions, the SEER rating can be used in comparing the performance of equipment  from different manufacturers. Higher SEER ratings can be achieved by manufacturers who use newer or better technology in their equipment. That’s why SEER ratings have a big influence on equipment costs. That’s also why SEER has become an important part of manufacturer and HVAC marketing programs.
Many people know that SEER ratings are important in selecting equipment. What most people don’t realize is that the HVAC contractor has a major role in making equipment perform up to its real capabilities in the home environment.
Knowing the SEER FACTS can help