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WHU09SZA21S

Westinghouse · mini-split heat pump

WHU09SZA21S is in the certified data as of Sep 19, 2026. WHU09SZA21S changed its certified heat output at 47°F on 2 pairings from 10,000 Btu/h to 9,000 Btu/h in the certified data between August 2025 and September 2026.

This unit's certified figures are identical to FPHFR09A3A (Friedrich). See the full figures, the performance chart, and a comparison with other units here:

FPHFR09A3A (main listing for WHU09SZA21S)

Certified pairings and AHRI numbers

2 certified pairings · 2 indoor units

Certified pairings of WHU09SZA21S
AHRI certificate Indoor unit Furnace Certified At 5°FBtu/h At 47°FBtu/h At 95°FBtu/h · cooling
207237535 WHU09CTA21S No furnace Jun 9, 2026 8,300 9,000 9,000
207237540 WHU09DHA21S No furnace Jun 9, 2026 7,100 9,000 9,000

Brands listing this model number

Product history

  • WHU09SZA21S changed its certified heat output at 47°F on 2 pairings from 10,000 Btu/h to 9,000 Btu/h in the certified data between August 2025 and September 2026.
  • WHU09SZA21S was in the certified data by September 2024.

Cite or print this page

Heat Pump List, “WHU09SZA21S — certified pairings and AHRI numbers”. Certified figures dated , checked daily.
https://heatpumplist.com/model/whu09sza21s