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Nordyne heat pumps

3 certified models, ranked by seasonal cooling efficiency (SEER2), then heating efficiency (HSPF2), highest first.

Filters Nordyne
  1. 1 SH4BF5M2SX48KNordyne, Nortek
    45,500 Btu/hheating at 47°F 45,500 Btu/hcooling at 95°F

    48,000 Btu (4-ton) · Central · 5°F 25,000 Btu/h · Cold output 51–56% · HSPF2 8.0 · 7 pairings

  2. 2 SH4BF5M2SX36KNordyne, Nortek
    34,200 Btu/hheating at 47°F 36,000 Btu/hcooling at 95°F

    36,000 Btu (3-ton) · Central · 5°F 17,800 Btu/h · Cold output 52% · HSPF2 8.0 · 3 pairings

  3. 3 SH4BF5M2SX24KNordyne, Nortek
    22,800 Btu/hheating at 47°F 24,000 Btu/hcooling at 95°F

    24,000 Btu (2-ton) · Central · 5°F 11,000 Btu/h · Cold output 48% · HSPF2 8.0 · 5 pairings

Nordyne heat pumps, ranked by seasonal cooling efficiency (SEER2), then heating efficiency (HSPF2)
# Model Brands Type Size At 5°FBtu/h · heating At 47°FBtu/h · heating At 95°FBtu/h · cooling Cold output% of 47°F rating COP 5°Ffull speed SEER2median pairing HSPF2Btu/Wh · median pairing Compressor Refrigerant Market Pairings
1 SH4BF5M2SX48K Nordyne, Nortek Central 48,000 Btu (4-ton)25,000 45,500 45,500 51–56% 1.75 16.0 8.0 2-stage R-454B US CA 7
2 SH4BF5M2SX36K Nordyne, Nortek Central 36,000 Btu (3-ton)17,800 34,200 36,000 52% 1.75 16.0 8.0 2-stage R-454B US CA 3
3 SH4BF5M2SX24K Nordyne, Nortek Central 24,000 Btu (2-ton)11,000 22,800 24,000 48% 1.75 16.0 8.0 2-stage R-454B US CA 5

The share is heat output at 5°F divided by the 47°F rating. Tests use different compressor speeds.

3 of 3 units

Other sizes

Every size class, with how many units it holds and its median heat output at 5°F