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Difference between SEER and HSPF ratings- AC UNITS FOR LESS

Difference between SEER and HSPF ratings- AC UNITS FOR LESS -

Brian Schaeffer |

Decoding Efficiency: SEER vs. HSPF Ratings for Your New AC Unit

Choosing the right air conditioning unit can be overwhelming, especially when trying to decipher all the technical jargon. Two crucial ratings you'll encounter are SEER and HSPF, but what do they mean, and how do they differ? Fear not, is here to break it down!

SEER: The Cool Cat of Summer

    • SEER stands for Seasonal Energy Efficiency Ratio. It measures how efficiently your AC unit cools your home during a typical summer season.
    • Higher SEER ratings indicate greater efficiency. A unit with a SEER of 20, for example, will use 20% less energy than one with a SEER of 16.
    • SEER focuses solely on cooling performance. So, if you primarily use your AC during the summer, prioritizing a high SEER rating can translate to significant energy savings and lower electricity bills.

HSPF: The Winter Warrior

    • HSPF stands for Heating Seasonal Performance Factor. It measures how efficiently your heat pump heats your home during a typical winter season.
    • Similar to SEER, higher HSPF ratings mean better efficiency. A heat pump with an HSPF of 10 will produce 10 times more heat energy than it consumes in electricity.
    • HSPF is relevant specifically for heat pumps, which can function as both heaters and air conditioners.

The Key Distinction:

The main difference lies in what each rating measures:

    • SEER assesses cooling efficiency.
    • HSPF assesses heating efficiency.

Choosing the Right Champion:

The best rating for you depends on your priorities:

    • For primarily summer cooling: Prioritize a high SEER rating.
    • For year-round comfort with a heat pump: Consider both SEER and HSPF based on your climate and usage patterns. In colder regions, HSPF becomes more important.


    • Higher ratings generally translate to higher initial costs. However, the long-term energy savings can outweigh the upfront investment.
    • Consult a qualified HVAC professional. They can analyze your specific needs and recommend units with optimal SEER and/or HSPF ratings for your climate and usage.

Shop Smarter with

We proudly offer a wide range of high-efficiency AC units with excellent SEER and HSPF ratings. Browse our selection and contact our friendly experts for personalized guidance to find the perfect cooling and heating solution for your home!

Bonus Tip: Look for ENERGY STAR® certified units, which meet strict energy-efficiency standards, potentially qualifying you for rebates or tax credits.

With, making informed decisions about your AC purchase is a breeze! Stay cool and comfortable, all while saving energy and money.