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      18,000 BTU mini-split heat pump · T-Pro

      TURBRO GREENLAND-M18K/O

      Very good cooling efficiency and average heating efficiency for a 18,000 BTU mini-split heat pump, and certified for cold climates.

      Ranks #88 of 465 18,000 BTU mini-splits for cooling efficiency, and costs about $463 a year to run in a mixed climate like Atlanta.

      SEER2
      24.0 Cooling efficiency over a season
      Very good · beats 75%
      HSPF2
      10.5 Heating efficiency over a season
      Average · beats 61%
      EER2
      13.0 Cooling efficiency on a 95°F day
      Average · beats 62%
      Heat at 5°F
      16,000 BTU/h80% of its 47°F output
      Average · beats 48%

      A good fit if…

      • You want low cooling bills - its SEER2 beats 75% of mini-splits.
      • Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 16,000 BTU/h at 5°F.
      • 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

      Specifications18,000 BTU, R-454B
      General
      BrandTURBRO
      Also sold asVENTAGEN, CLASSIC AMERICA
      Outdoor unit modelGREENLAND-M18K/O
      SeriesT-Pro
      TypeMini-split heat pump
      Nominal size18,000 BTU
      CompressorVariable-speed units run longer at low powerContinuously variable
      RefrigerantR-454B
      Connected (smart) capableNo
      On the market sinceApril 9, 2025
      Last certifiedSeptember 25, 2025
      Cooling
      SEER2Seasonal efficiency, higher is better24.0 (range 24.0)
      EER2Efficiency at 95°F outdoors13.0
      Cooling capacity18,000 BTU/h
      Heating
      HSPF2Seasonal efficiency, higher is better10.5
      Capacity at 47°F20,000 BTU/h
      Capacity at 17°F20,000 BTU/h
      Capacity at 5°F16,000 BTU/h
      COP at 5°F2.0 = twice as efficient as a space heater2.00
      ENERGY STAR cold climateYes
      Heating output as it gets colder80% kept at 5°F

      Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its best matchup 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.
      - · cold climate24.013.010.516,000217222920
      Same unit, other model numbers2

      These model numbers have exactly the same certified ratings and matchups as the TURBRO GREENLAND-M18K/O: 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$356-$1,153

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

      Questions5
      What is the SEER2 rating of the TURBRO GREENLAND-M18K/O?
      The TURBRO GREENLAND-M18K/O is rated at up to 24.0 SEER2 and 13.0 EER2 for cooling and up to 10.5 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with.
      Is the TURBRO GREENLAND-M18K/O good for cold climates?
      Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 16,000 BTU/h at 5°F with a COP of 2.00, so it is still 2.0 times as efficient as electric resistance heat at that temperature.
      How much does the TURBRO GREENLAND-M18K/O cost to run per year?
      At its rated efficiency it costs about $356-$1,153 a year in electricity in large U.S. cities, depending on climate and local rates - for example $466 in Phoenix and $985 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.
      Is the TURBRO GREENLAND-M18K/O the same as the VENTAGEN TV2H18FM22X454?
      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.
      What refrigerant does the TURBRO GREENLAND-M18K/O 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 $477/yrYou save $484/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 TURBRO GREENLAND-M18K/O
      3. What it replaces
      4. Price replace the example with your quote
      Heat pump, per year
      $477
      Current system, per year
      $961
      You save per year
      $484
      Payback
      14.5 years
      Net after 10 years
      -$2,165

      Cooling $264Heating $213Electricity used: 2,983 kWhSaved vs. a minimum-efficiency heat pump: $264

      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 September 25, 2025. How we use the data.