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      12,000 BTU mini-split heat pump · VoxIN

      TCL TH12SVH23BWC

      Average cooling efficiency and below average heating efficiency for a 12,000 BTU mini-split heat pump, and certified for cold climates.

      Ranks #259 of 394 12,000 BTU mini-splits for cooling efficiency, and costs about $305 a year to run in a mixed climate like Atlanta.

      SEER2
      23.0 Cooling efficiency over a season
      Average · beats 62%
      HSPF2
      9.8 Heating efficiency over a season
      Below average · beats 33%
      EER2
      12.0 Cooling efficiency on a 95°F day
      Below average · beats 25%
      Heat at 5°F
      10,000 BTU/h83% of its 47°F output
      Below average · beats 9%

      A good fit if…

      • Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 10,000 BTU/h at 5°F.
      • You want steady temperatures and quiet running - the compressor varies its speed.

      Think twice if…

      • You mainly need heat - its HSPF2 is below average for mini-splits.

      Calculate my running cost

      Details

      Specifications12,000 BTU, R-32
      General
      BrandTCL
      Also sold asVENTAGEN
      Outdoor unit modelTH12SVH23BWC
      SeriesVoxIN
      TypeMini-split heat pump
      Nominal size12,000 BTU
      CompressorVariable-speed units run longer at low powerContinuously variable
      RefrigerantR-32
      Connected (smart) capableNo
      On the market sinceAugust 1, 2025
      Last certifiedAugust 26, 2025
      Cooling
      SEER2Seasonal efficiency, higher is better23.0 (range 23.0)
      EER2Efficiency at 95°F outdoors12.0
      Cooling capacity12,000 BTU/h
      Heating
      HSPF2Seasonal efficiency, higher is better9.8
      Capacity at 47°F12,000 BTU/h
      Capacity at 17°F12,400 BTU/h
      Capacity at 5°F10,000 BTU/h
      COP at 5°F2.0 = twice as efficient as a space heater1.80
      ENERGY STAR cold climateYes
      Heating output as it gets colder83% kept at 5°F

      Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with TH12SVH23BWE at the standard test temperatures, in BTU/h:

      Certified matchups1 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.
      TH12SVH23BWE · cold climate23.012.09.810,000217626254
      Same unit, other model numbers2

      These model numbers have exactly the same certified ratings and matchups as the TCL TH12SVH23BWC: the same equipment under another brand, or a variant code for voltage, colour or market. Everything on this page applies to them.

      Yearly running cost in 10 large cities$247-$751

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

      Questions6
      What is the SEER2 rating of the TCL TH12SVH23BWC?
      The TCL TH12SVH23BWC is rated at up to 23.0 SEER2 and 12.0 EER2 for cooling and up to 9.8 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with.
      Is the TCL TH12SVH23BWC good for cold climates?
      Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 10,000 BTU/h at 5°F with a COP of 1.80, so it is still 1.8 times as efficient as electric resistance heat at that temperature.
      How much does the TCL TH12SVH23BWC cost to run per year?
      At its rated efficiency it costs about $247-$751 a year in electricity in large U.S. cities, depending on climate and local rates - for example $317 in Phoenix and $637 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.
      Is the TCL TH12SVH23BWC the same as the TCL TH12SVH23XWC?
      Yes, as far as the certified ratings go. ENERGY STAR lists 3 model numbers with identical efficiency, capacity and matchups, which means the same outdoor unit sold under a different brand or with a minor variant code (voltage, colour or region). The full list is on this page.
      Which indoor units work with the TCL TH12SVH23BWC?
      ENERGY STAR lists 1 certified combination for this outdoor unit. The highest-rated one uses TH12SVH23BWE.
      What refrigerant does the TCL TH12SVH23BWC 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 $321/yrYou save $298/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 TCL TH12SVH23BWC
      3. What it replaces
      4. Price replace the example with your quote
      Heat pump, per year
      $321
      Current system, per year
      $619
      You save per year
      $298
      Payback
      15.1 years
      Net after 10 years
      -$1,520

      Cooling $184Heating $137Electricity used: 2,005 kWhSaved vs. a minimum-efficiency heat pump: $154

      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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      Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of August 26, 2025. How we use the data.