Understanding SEER HSPF and AFUE Before You Buy a New AC
SEER Savings Calculator
Compare different SEER ratings to see your potential savings
Every new HVAC unit includes a bright yellow EnergyGuide label. The large number in the center shows the unit’s efficiency rating. Below that, you’ll see a scale comparing it to similar models. Your actual operating costs depend on local electricity rates and how often you run the system.
A Florida Homeowner’s Cheat Sheet to Efficiency Ratings
Minimum SEER2
14.3
Recommended SEER2
16-20
Good HSPF2
8-9
Savings Potential
20-30%
You can also explore more ways to lower your energy bills without sacrificing comfort.
HVAC Ratings FAQs
What is the new SEER2 rating?
SEER2 is an updated efficiency measurement introduced in 2023. It uses more realistic testing conditions with higher air resistance. The rating numbers appear slightly lower than old SEER ratings, but the equipment performs the same.
Is it always worth buying the highest SEER rating?
Not necessarily. If you plan to move in five years, the energy savings won’t offset the higher purchase price. But if you’re staying long-term in a home with high cooling demands, an 18-20 SEER system often makes financial sense.
Do these ratings account for Florida’s humidity?
SEER and HSPF measure energy efficiency, not dehumidification. However, higher-efficiency systems with variable-speed compressors typically remove more humidity because they run longer at lower speeds.
Where can I find the efficiency rating on my current HVAC unit?
Check the yellow EnergyGuide label on the unit itself. You can also find model numbers on the nameplate and look up specifications on the manufacturer’s website. If the label is missing or faded, your local HVAC technician can identify the rating during a service visit.