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      3.5-ton central heat pump · HSA14 Series

      Century HSA1442S1-**A

      Below average cooling and heating efficiency for a 3.5-ton central heat pump, but not rated for cold climates.

      Ranks #102 of 138 3.5 ton central heat pumps for cooling efficiency, and costs about $1,343 a year to run in a mixed climate like Atlanta.

      SEER2
      15.5 Cooling efficiency over a season
      Below average · beats 15%
      HSPF2
      8.0 Heating efficiency over a season
      Below average · beats 12%
      EER2
      13.0 Cooling efficiency on a 95°F day
      Very good · beats 89%
      Heat at 5°F
      20,600 BTU/h51% of its 47°F output
      Average · beats 65%

      A good fit if…

      • You want a choice of indoor units - 44 certified pairings.

      Think twice if…

      • You often see nights below 0°F - it is not cold-climate certified.
      • Cooling cost matters most - its SEER2 is below average for central heat pumps.
      • You mainly need heat - its HSPF2 is below average for central heat pumps.
      • Comfort and noise matter - a single-stage compressor runs only full-on or off.

      Calculate my running cost

      Details

      Specifications3.5 ton, R-454B
      General
      BrandCentury
      Also sold asComfort-Aire
      Outdoor unit modelHSA1442S1-**A
      SeriesHSA14 Series
      TypeCentral heat pump
      Nominal size3.5 ton
      CompressorVariable-speed units run longer at low powerSingle stage
      RefrigerantR-454B
      Connected (smart) capableNo
      On the market sinceOctober 1, 2024
      Last certifiedOctober 27, 2025
      Cooling
      SEER2Seasonal efficiency, higher is better15.5 (range 15.2-15.5)
      EER2Efficiency at 95°F outdoors12.6-13.2
      Cooling capacity41,000-42,000 BTU/h
      Heating
      HSPF2Seasonal efficiency, higher is better7.8-8.0
      Capacity at 47°F39,000-40,000 BTU/h
      Capacity at 17°F24,600-25,400 BTU/h
      Capacity at 5°F19,300-20,600 BTU/h
      COP at 5°F2.0 = twice as efficient as a space heater2.00-2.12
      ENERGY STAR cold climateNo
      Heating output as it gets colder51% kept at 5°F

      Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with 7E[C,U]49CX-**+TDR at the standard test temperatures, in BTU/h:

      Certified matchups44 indoor units

      The same outdoor unit scores differently with each indoor unit and furnace. Ask your installer for the AHRI reference number of the exact system you are quoted.

      Indoor unitFurnaceSEER2EER2HSPF2Heat @5°FAHRI ref.
      7E[C,U]49CX-**+TDRGUH80C090C5MP*15.513.08.019,700216372624
      7E[C,U]49CX-**+TDRGUH80C090C5MP*15.513.08.019,700216372730
      7E[C,U]48CX-**+TDRGUH80C110C5MP*15.513.07.820,400216372619
      7E[C,U]48CX-**+TDRGUH92C110C4MP*15.513.07.820,200216372621
      7E[C,U]48CX-**+TDRGUH96C110C5MP*15.512.87.820,400216372623
      7E[C,U]49CX-**+TDRGUH92C090C3MP*15.512.87.819,400216372626
      7E[C,U]49CX-**+TDRGUH80C110C5MP*15.513.07.819,500216372731
      7E[C,U]49CX-**+TDRGUH92C090C3MP*15.512.87.819,400216372732
      7E[C,U]49CX-**+TDRGUH92C110C5MP*15.513.07.819,600216372735
      7E[C,U]49CX-**+TDRGUH92C110C4MP*15.513.07.819,300216372734
      7E[C,U]49CX-**+TDRGUH96C110C5MP*15.512.87.819,500216372737
      7EH42BX-**+TDRGUH80C090B4MP*15.513.27.819,400216372738
      7E[C,U]48CX-**+TDRGUH80C090C5MP*15.513.07.820,600216372618
      7E[C,U]48CX-**+TDRGUH80C090C5MP*15.513.07.820,600216372724
      7E[C,U]48CX-**+TDRGUH80C110C5MP*15.513.07.820,400216372725
      7E[C,U]48CX-**+TDRGUH92C110C4MP*15.513.07.820,200216372727
      7E[C,U]48CX-**+TDRGUH96C110C5MP*15.512.87.820,400216372729
      7E[C,U]49CX-**+TDRGUH92C110C4MP*15.513.07.819,300216372628
      7E[C,U]49CX-**+TDRGUH92C110C5MP*15.513.07.819,600216372629
      7E[C,U]49CX-**+TDRGUH96C110C5MP*15.512.87.819,500216372631
      7EH42BX-**+TDRGUH80C090B4MP*15.513.27.819,400216372632
      HMA42VX1*--15.512.87.820,600216372722
      7E[C,U]49CX-**+TDRGUH80C110C5MP*15.513.07.819,500216372625
      HMA42VX1*--15.512.87.820,600216372616
      7E[C,U]49CX-**+TDRGUH97T110C5MP*15.512.87.819,600216498797
      7E[C,U]49CX-**+TDRGUH97T110C5MP*15.512.87.819,600216498828
      HMA48VX1*--15.212.88.019,600216372617
      HMA48VX1*--15.212.88.019,600216372723
      7E[C,U]48CX-**+TDRGUH92C090C3MP*15.212.87.820,400216372620
      7E[C,U]48CX-**+TDRGUH92C110C5MP*15.212.87.820,600216372622
      7E[C,U]49CX-**+TDRGUH92C090C4MP*15.212.87.820,000216372733
      7E[C,U]48CX-**+TDRGUH92C090C3MP*15.212.87.820,400216372726
      7E[C,U]48CX-**+TDRGUH92C110C5MP*15.212.87.820,600216372728
      7E[C,U]49CX-**+TDRGUH92C090C4MP*15.212.87.820,000216372627
      7E[C,U]49CX-**+TDRGUH96C090C4MP*15.212.67.820,000216372630
      7E[C,U]49CX-**+TDRGUH96C090C4MP*15.212.67.820,000216372736
      7E[C,U]48CX-**+TDRGUH97T110C5MP*15.212.87.820,600216498796
      7E[C,U]48CX-**+TDRGUH97T110C5MP*15.212.87.820,600216498827
      7E[C,U]48CX-**+TDRGUH97T090C3MP15.212.67.820,600216801517
      7E[C,U]49CX-**+TDRGUH97T090C3MP15.212.87.819,600216801519
      7E[C,U]49CX-**+TDRGUH97T090C5MP15.212.67.820,000216801520
      7E[C,U]48CX-**+TDRGUH97T090C3MP15.212.67.820,600216801547
      7E[C,U]49CX-**+TDRGUH97T090C3MP15.212.87.819,600216801549
      7E[C,U]49CX-**+TDRGUH97T090C5MP15.212.67.820,000216801550
      Yearly running cost in 10 large cities$1,255-$3,166

      At each state's average electricity price and the city's typical heating and cooling hours.

      Questions5
      What is the SEER2 rating of the Century HSA1442S1-**A?
      The Century HSA1442S1-**A is rated at up to 15.5 SEER2 and 13.0 EER2 for cooling and up to 8.0 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 44 certified matchups SEER2 ranges from 15.2-15.5.
      Is the Century HSA1442S1-**A good for cold climates?
      It is not cold-climate certified: none of its matchups meet the ENERGY STAR cold-climate criteria (a COP of at least 1.75 at 5°F among other limits). In places with frequent sub-zero nights, pick a cold-climate 3.5-ton model.
      How much does the Century HSA1442S1-**A cost to run per year?
      At its rated efficiency it costs about $1,255-$3,166 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,521 in Phoenix and $2,625 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.
      Which indoor units work with the Century HSA1442S1-**A?
      ENERGY STAR lists 44 certified combinations for this outdoor unit. The highest-rated ones use 7E[C,U]49CX-**+TDR, 7E[C,U]48CX-**+TDR, 7EH42BX-**+TDR.
      What refrigerant does the Century HSA1442S1-**A use?
      It uses R-454B.

      Running cost and savings

      Pre-filled with this model. Pick your city and what you heat with today; everything else is optional.

      Heat pump $1,495/yrYou save $612/yrSee details ↓
      1. Where you live
      Adjust heating and cooling hours

      Filled in from your city's climate. Change them if you run the system much more or less than usual.

      2. The heat pump Century HSA1442S1-**A
      3. What it replaces
      4. Price replace the example with your quote
      Heat pump, per year
      $1,495
      Current system, per year
      $2,107
      You save per year
      $612
      Payback
      25.3 years
      Net after 10 years
      -$9,383

      Cooling $942Heating $553Electricity used: 9,347 kWhSaved vs. a minimum-efficiency heat pump: $116

      Estimates use the unit's rated SEER2 and HSPF2, full-load hours derived from NOAA 1991-2020 degree days, average residential electricity prices from the U.S. EIA (12 months to July 2026) and fuel prices from EIA (2025 for natural gas, week of 2026-10-05 for propane and heating oil). Very cold days that need backup heat are not modelled. Federal minimum for comparison: 14.3 SEER2 / 7.5 HSPF2.

      Similar 3.5 ton models

      See all 138 3.5 ton central heat pumps, ranked

      Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of October 27, 2025. How we use the data.