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Cooling efficiency for your air conditioner is measured by its SEER (Seasonal Energy Efficiency Ratio) rating. SEER tells you how efficiently your unit uses electricity. The higher the SEER rating, the less electrical cost you will incur to cool your home. Units installed after 1992 were required to be at least 10 SEER; After 2006 at least 13 SEER; And now, effective January, 2023 the US Department of Energy has mandated all ACs installed in the northern US (including Ohio) will be required to be at least 14 SEER.

Also, the DOE has changed the testing procedures for determining AC efficiency, therefore labeling the new efficiency SEER2. The new testing procedure involves increasing the static pressure by up to five times what it was previously to better reflect field conditions. The new minimum then will be 14 SEER or 13.4 SEER2. Eventually the SEER measurement, we suspect, will be dropped.

The environmentally friendly R-410A is currently the industry's refrigerant of choice for all air conditioners and heat pumps. This refrigerant was mandated by the DOE in January, 2010. At that time all R-22 based air conditioners or heat pumps – which had been the operating refrigerant over the previous fifty years – were discontinued. This refrigerant was deemed environmentally unfriendly and is no longer being manufactured.

Hetter Heating & Cooling installs both Trane & Tempstar products. Click on either logo below for that manufacturer's AC product offerings: