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      4-ton central heat pump · VSHP

      SAMYOU VUH48-VA6BA(O)

      Excellent cooling and heating efficiency for a 4-ton central heat pump, and certified for cold climates.

      Ranks #10 of 319 4 ton central heat pumps for cooling efficiency, and costs about $1,194 a year to run in a mixed climate like Atlanta.

      SEER2
      20.0 Cooling efficiency over a season
      Excellent · beats 94%
      HSPF2
      11.0 Heating efficiency over a season
      Excellent · beats 100%
      EER2
      12.0 Cooling efficiency on a 95°F day
      Average · beats 64%
      Heat at 5°F
      44,500 BTU/h93% of its 47°F output
      Average · beats 58%

      A good fit if…

      • You want low cooling bills - its SEER2 beats 94% of central heat pumps.
      • Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 44,500 BTU/h at 5°F.
      • It will heat most of the year - its HSPF2 beats 100% of central heat pumps.
      • You want steady temperatures and quiet running - the compressor varies its speed.

      Think twice if…

      • Nothing stands out - its ratings have no weak spot for its class.

      Calculate my running cost

      Details

      Specifications4 ton, R-32
      General
      BrandSAMYOU
      Also sold asVINO
      Outdoor unit modelVUH48-VA6BA(O)
      SeriesVSHP
      TypeCentral heat pump
      Nominal size4 ton
      CompressorVariable-speed units run longer at low powerContinuously variable
      RefrigerantR-32
      Connected (smart) capableNo
      On the market sinceMay 1, 2026
      Last certifiedJune 12, 2026
      Cooling
      SEER2Seasonal efficiency, higher is better20.0 (range 20.0)
      EER2Efficiency at 95°F outdoors12.0
      Cooling capacity48,000 BTU/h
      Heating
      HSPF2Seasonal efficiency, higher is better11.0
      Capacity at 47°F48,000 BTU/h
      Capacity at 17°F48,000 BTU/h
      Capacity at 5°F44,500 BTU/h
      COP at 5°F2.0 = twice as efficient as a space heater2.10
      ENERGY STAR cold climateYes
      Heating output as it gets colder93% kept at 5°F

      Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with VUH48-VA6BA(I) at the standard test temperatures, in BTU/h:

      Certified matchups2 indoor units

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

      Indoor unitSEER2EER2HSPF2Heat @5°FAHRI ref.
      VUH48-VA6BA(I) · cold climate20.012.011.044,500218597509
      VUH48-VA6BA(I) · cold climate20.012.011.044,500218597507
      Yearly running cost in 10 large cities$1,125-$2,806

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

      Questions5
      What is the SEER2 rating of the SAMYOU VUH48-VA6BA(O)?
      The SAMYOU VUH48-VA6BA(O) is rated at up to 20.0 SEER2 and 12.0 EER2 for cooling and up to 11.0 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with.
      Is the SAMYOU VUH48-VA6BA(O) good for cold climates?
      Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 44,500 BTU/h at 5°F with a COP of 2.10, so it is still 2.1 times as efficient as electric resistance heat at that temperature.
      How much does the SAMYOU VUH48-VA6BA(O) cost to run per year?
      At its rated efficiency it costs about $1,125-$2,806 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,359 in Phoenix and $2,323 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 SAMYOU VUH48-VA6BA(O)?
      ENERGY STAR lists 2 certified combinations for this outdoor unit. The highest-rated one uses VUH48-VA6BA(I).
      What refrigerant does the SAMYOU VUH48-VA6BA(O) use?
      It uses R-32.

      Running cost and savings

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

      Heat pump $1,334/yrYou save $1,141/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 SAMYOU VUH48-VA6BA(O)
      3. What it replaces
      4. Price replace the example with your quote
      Heat pump, per year
      $1,334
      Current system, per year
      $2,475
      You save per year
      $1,141
      Payback
      15.8 years
      Net after 10 years
      -$6,585

      Cooling $845Heating $489Electricity used: 8,335 kWhSaved vs. a minimum-efficiency heat pump: $565

      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.

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      See all 319 4 ton central heat pumps, ranked

      Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of June 12, 2026. How we use the data.