Heat Pump List
Menu

Sections

Tools

Nortek heat pumps

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

Filters Nortek
  1. 1 GXH48-60MSK4DHAireForce, Airtemp + 5 more
    48,000 Btu/hheating at 47°F 48,000 Btu/hcooling at 95°F

    48,000 Btu (4-ton) · Central · 5°F 39,000 Btu/h · Cold output 76–81% · HSPF2 9.0 · 14 pairings

  2. 2 GXH24-36MSK4DHAireForce, Airtemp + 5 more
    24,000 Btu/hheating at 47°F 24,000 Btu/hcooling at 95°F

    24,000 Btu (2-ton) · Central · 5°F 22,000 Btu/h · Cold output 80–92% · HSPF2 9.0 · 14 pairings

  3. 3 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

  4. 4 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

  5. 5 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

  6. 6 SH3BF4M2SX36KNortek
    34,600 Btu/hheating at 47°F 34,200 Btu/hcooling at 95°F

    36,000 Btu (3-ton) · Central · 5°F NR · Cold output — · HSPF2 7.8 · 4 pairings

Nortek 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 GXH48-60MSK4DH AireForce, Airtemp + 5 more Central 48,000 Btu (4-ton)39,000 48,000 48,000 76–81% 1.80 16.5 9.0 Variable R-410A US CA 14
2 GXH24-36MSK4DH AireForce, Airtemp + 5 more Central 24,000 Btu (2-ton)22,000 24,000 24,000 80–92% 1.80 16.5 9.0 Variable R-410A US CA 14
3 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
4 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
5 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
6 SH3BF4M2SX36K Nortek Central 36,000 Btu (3-ton)— 34,600 34,200 — 1.75 15.2 7.8 2-stage R-410A US CA 4

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

6 of 6 units

Other sizes

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