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SEER2 requirements in Texas (DOE 2023 South region)

By the Texas Comfort Quotes editorial team · Last updated · How we research

Texas is in the DOE's South region. Since January 1, 2023, new split-system central AC installed in Texas must be at least 14.3 SEER2 below 45,000 Btu/h (about 3.5 tons) or 13.8 SEER2 at 45,000 Btu/h and above. Split-system heat pumps must meet 14.3 SEER2 and 7.5 HSPF2 nationwide.

Minimums at a glance

Equipment (split system)SizeMinimum in Texas
Central AC< 45,000 Btu/h14.3 SEER2 (≈15 SEER)
Central AC≥ 45,000 Btu/h13.8 SEER2 (≈14.5 SEER)
Heat pumpAll14.3 SEER2 / 7.5 HSPF2

Source: U.S. DOE 2023 standards FAQ and AHRI's regional standards summary. Compliance for AC is based on installation date in the South region.

What SEER2 means

SEER2 is the 2023 version of the seasonal efficiency rating, measured with a test procedure that better reflects real duct conditions. SEER2 numbers are lower than old SEER numbers for the same equipment, so a 14.3 SEER2 unit is roughly equivalent to a 15 SEER unit.

Higher efficiency and rebates

Utility rebates usually require more than the minimum. For example, CenterPoint Energy's incentives start at 15.2 SEER2. Verify any system's rating on the AHRI Directory.

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Questions

What SEER2 is required in Texas?

14.3 SEER2 for split central AC under 45,000 Btu/h and 13.8 SEER2 at or above 45,000 Btu/h, for systems installed since January 1, 2023.

Can I still install an old 14 SEER unit?

No. In the South region, split-system AC that doesn't meet the 2023 minimums can't be installed on or after January 1, 2023.

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