Stands for Seasonal Energy Efficiency Ratio. SEER measures air conditioning and heat pump efficiency. A SEER rating is a maximum efficiency rating, similar to the miles per gallon for your car. Trading in a gas guzzler for a more efficient car reduces your annual gasoline cost. The same is true when replacing your HVAC system.
When upgrading your air conditioner or heat pump system, look for a higher SEER rating which means greater energy efficiency. The minimum standard SEER is 13 for air conditioners. Most modern air conditioners have a SEER that ranges from 13 to 21. It’s important to remember the efficiency of your system can also depend on the size of your home, your current ductwork, and other variables.