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Maytag heat pumps

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

Filters Maytag
  1. 1 PSH4BF5M2SX48KMaytag
    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 · 3 pairings

  2. 2 PSH4BF5M2SX36KMaytag
    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 · 1 pairing

  3. 3 PSH4BF5M2SX24KMaytag
    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 7.9 · 2 pairings

  4. 4 PSH3BF4M2SX36KMaytag
    34,600 Btu/hheating at 47°F 35,600 Btu/hcooling at 95°F

    36,000 Btu (3-ton) · Central · 5°F NR · Cold output — · HSPF2 7.8 · 1 pairing

Maytag 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 PSH4BF5M2SX48K Maytag 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 3
2 PSH4BF5M2SX36K Maytag 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 1
3 PSH4BF5M2SX24K Maytag Central 24,000 Btu (2-ton)11,000 22,800 24,000 48% 1.75 16.0 7.9 2-stage R-454B US CA 2
4 PSH3BF4M2SX36K Maytag Central 36,000 Btu (3-ton)— 34,600 35,600 — — 15.2 7.8 2-stage R-410A US 1

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

4 of 4 units

Other sizes

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