CondensusHeat and cool any room. No ductwork.
A bright modern living room with a wall-mounted ductless mini-split above the windows

Mini-splits · Heat pumps · Install gear

Stop guessing BTUs. Size the room. See what fits.

Set the square footage, sun and head count. The ENERGY STAR sizing math runs live, and every system's own cooling, heating and cold-weather numbers are checked against it, from 115V DIY kits to hyper-heat units rated to -22°F.

Compare mini-splits Will it heat in my winters?
209
products researched
90
brands covered
8
categories compared
Room size checkMini-splits
About 10,000 BTU ENERGY STAR sizing

94 mini-splits state a cooling capacity

  1. Cooper & Hunter 6,000 BTU 115V Mini-Split6,000 BTU cooling · 21.5 SEER2
  2. DELLA Optima 9,000 BTU 230V9,000 BTU cooling · 23 SEER2 · heats to -13°F
  3. DELLA Serena 9,000 BTU 230V9,000 BTU cooling · 9,300 BTU heating · 22 SEER2
  4. Temprium 9,000 BTU 115V Mini-Split9,000 BTU cooling · 9,500 BTU heating · 22 SEER2 · heats to 5°F
  5. Cooper & Hunter 9,000 BTU 230V Mini-Split9,000 BTU cooling · 21.2 SEER2 · heats to 5°F
  6. COSTWAY 9,000 BTU 230V Mini-Split, 21 SEER29,000 BTU cooling · 10,000 BTU heating · 21 SEER2
  7. ROVSUN 9,000 BTU 115V Mini-Split9,000 BTU cooling · 20 SEER2
  8. TOSOT 9,000 BTU 115V Mini-Split9,000 BTU cooling · 9,000 BTU heating · 20 SEER2
  9. Mountman 9,000 BTU 115V Mini-Split9,000 BTU cooling · 19 SEER2
  10. Rellytech 9,000 BTU 115V Mini-Split9,000 BTU cooling · 9,000 BTU heating · 19 SEER2
  11. COSTWAY 9,000 BTU 230V Mini-Split9,000 BTU cooling · 9,000 BTU heating
  12. Garvee 9,000 BTU 230V Mini-Split9,000 BTU cooling
  13. Senville AURA 9,000 BTU 230V9,000 BTU cooling · heats to -22°F
  14. Senville LETO 9,000 BTU 115V9,000 BTU cooling · heats to 5°F
  15. DELLA Motto 9,100 BTU 115V9,100 BTU cooling · 10,000 BTU heating · 20.5 SEER2 · heats to 5°F
  16. DELLA Econo 11,500 BTU 230V11,500 BTU cooling · 11,500 BTU heating · 17 SEER2
  17. Rellytech 11,500 BTU 115V Mini-Split11,500 BTU cooling · 17 SEER2 · heats to -4°F
  18. DELLA Optima 12,000 BTU 230V12,000 BTU cooling · 12,600 BTU heating · 24 SEER2 · heats to -13°F
  19. DELLA Optima 12,000 BTU 115V12,000 BTU cooling · 12,400 BTU heating · 23 SEER2 · heats to -13°F
  20. DELLA Vario 12,000 BTU 230V12,000 BTU cooling · 12,000 BTU heating · 23 SEER2
  21. COSTWAY 12,000 BTU 115V Mini-Split, 22 SEER212,000 BTU cooling · 12,300 BTU heating · 22 SEER2
  22. DELLA Serena 12,000 BTU 230V12,000 BTU cooling · 12,300 BTU heating · 22 SEER2
  23. Temprium 12,000 BTU 115V Mini-Split12,000 BTU cooling · 12,300 BTU heating · 22 SEER2 · heats to 5°F
  24. Cooper & Hunter MIA 12,000 BTU 230V12,000 BTU cooling · 21.3 SEER2 · heats to 5°F
  25. Cooper & Hunter MIA 12,000 BTU 115V12,000 BTU cooling · 21.2 SEER2 · heats to 5°F
  26. DELLA Vario 12,000 BTU 115V12,000 BTU cooling · 12,000 BTU heating · 20.5 SEER2
  27. COSTWAY 12,000 BTU 115V Mini-Split, 20 SEER212,000 BTU cooling · 12,000 BTU heating · 20 SEER2
  28. EXNOS 12,000 BTU 115V Mini-Split12,000 BTU cooling · 12,500 BTU heating · 20 SEER2
  29. ROVSUN 12,000 BTU 115V Mini-Split12,000 BTU cooling · 12,600 BTU heating · 20 SEER2
  30. Rellytech 12,000 BTU 115V Mini-Split, 20 SEER212,000 BTU cooling · 12,500 BTU heating · 20 SEER2
  31. TOSOT 12,000 BTU 115V Mini-Split12,000 BTU cooling · 20 SEER2
  32. YITAHOME 12,000 BTU 115V Mini-Split12,000 BTU cooling · 20 SEER2 · heats to 5°F
  33. Garvee 12,000 BTU 115V Mini-Split12,000 BTU cooling · 19 SEER2
  34. Garvee 12,000 BTU 230V Mini-Split12,000 BTU cooling · 12,300 BTU heating · 19 SEER2
  35. Manastin 12,000 BTU 115V Mini-Split12,000 BTU cooling · 12,500 BTU heating · 19 SEER2
  36. Mountman 12,000 BTU 115V Mini-Split12,000 BTU cooling · 19 SEER2
  37. Nexaro 12,000 BTU 115V Mini-Split, 19 SEER212,000 BTU cooling · 19 SEER2
  38. Rellytech 12,000 BTU 115V Mini-Split12,000 BTU cooling · 12,500 BTU heating · 19 SEER2
  39. Daikin Entra 12,000 BTU 230V12,000 BTU cooling · 11,300 BTU heating · 18 SEER2
  40. LITHZEN 12,000 BTU 115V Mini-Split12,000 BTU cooling · 17 SEER2
  41. Nexaro 12,000 BTU 115V Mini-Split12,000 BTU cooling · 12,000 BTU heating · 17 SEER2
  42. Albott 12,000 BTU 115V Mini-Split12,000 BTU cooling
  43. COSTWAY 12,000 BTU 115V Mini-Split12,000 BTU cooling · 12,300 BTU heating
  44. MRCOOL DIY 12,000 BTU 115V12,000 BTU cooling
  45. MRCOOL Easy Pro 12,000 BTU 115V12,000 BTU cooling · 12,000 BTU heating
  46. Senville Floor Console 12,000 BTU 230V12,000 BTU cooling
  47. Senville LETO 12,000 BTU 115V12,000 BTU cooling · heats to 5°F
  48. Rellytech 17,000 BTU 230V Mini-Split17,000 BTU cooling · 17 SEER2 · heats to -4°F
  49. ActiveTrail 17,000 BTU 230V Mini-Split17,000 BTU cooling
  50. Senville AURA 18,000 BTU17,000 BTU cooling · heats to -22°F
  51. DELLA Optima 18,000 BTU 230V18,000 BTU cooling · 19,000 BTU heating · 23 SEER2 · heats to -13°F
  52. DELLA Serena 18,000 BTU 230V18,000 BTU cooling · 22 SEER2
  53. DELLA Vario 18,000 BTU 230V18,000 BTU cooling · 19,000 BTU heating · 21 SEER2
  54. Rellytech 18,000 BTU 230V Mini-Split18,000 BTU cooling · 18,000 BTU heating · 21 SEER2
  55. YITAHOME 18,000 BTU 230V Mini-Split18,000 BTU cooling · 18,000 BTU heating · 21 SEER2
  56. ROVSUN 18,000 BTU 230V Mini-Split18,000 BTU cooling · 18,000 BTU heating · 20 SEER2
  57. TOSOT 18,000 BTU 230V Mini-Split18,000 BTU cooling · 19,100 BTU heating · 20 SEER2
  58. Cooper & Hunter MIA 18,000 BTU 230V18,000 BTU cooling · 18,000 BTU heating · 19.2 SEER2 · heats to 5°F
  59. COSTWAY 18,000 BTU 230V Mini-Split18,000 BTU cooling · 18,700 BTU heating · 19 SEER2
  60. DELLA Motto 18,000 BTU 230V18,000 BTU cooling · 18,700 BTU heating · 19 SEER2 · heats to 5°F
  61. Mountman 18,000 BTU 230V Mini-Split18,000 BTU cooling · 19 SEER2
  62. Nexaro 18,000 BTU 230V Mini-Split18,000 BTU cooling · 12,500 BTU heating · 19 SEER2
  63. Rellytech 18,000 BTU 230V Mini-Split, 19 SEER218,000 BTU cooling · 18,400 BTU heating · 19 SEER2
  64. Albott 18,000 BTU 230V Mini-Split18,000 BTU cooling · 18 SEER2
  65. Daikin Entra 18,000 BTU 230V18,000 BTU cooling · 18,000 BTU heating · 18 SEER2
  66. COSTWAY 18,000 BTU 230V Mini-Split (FP10154US-WH+)18,000 BTU cooling · 18,000 BTU heating
  67. MRCOOL Easy Pro 18,000 BTU 230V18,000 BTU cooling
  68. MRCOOL Easy Pro 18,000 BTU 230V (EZPRO-18-HP-23016)18,000 BTU cooling
  69. DELLA Econo 23,000 BTU 230V22,000 BTU cooling · 22,400 BTU heating · 17 SEER2
  70. DELLA Optima 23,000 BTU 230V23,000 BTU cooling · 25,000 BTU heating · 23 SEER2 · heats to -13°F
  71. DELLA Umbra 23,000 BTU 230V23,000 BTU cooling · 24,000 BTU heating · 19 SEER2
  72. ActiveTrail 23,000 BTU 230V Mini-Split23,000 BTU cooling
  73. Cooper & Hunter 24,000 BTU 230V Mini-Split24,000 BTU cooling · 24,000 BTU heating · 23.5 SEER2 · heats to -13°F
  74. DELLA Vario 24,000 BTU 230V24,000 BTU cooling · 24,600 BTU heating · 21 SEER2 · heats to -4°F
  75. Garvee 24,000 BTU 230V Mini-Split24,000 BTU cooling · 21 SEER2
  76. ROVSUN 24,000 BTU 230V Mini-Split24,000 BTU cooling · 24,000 BTU heating · 20 SEER2
  77. Mountman 24,000 BTU 230V Mini-Split24,000 BTU cooling · 19 SEER2
  78. Temprium 24,000 BTU 230V Mini-Split24,000 BTU cooling · 24,000 BTU heating · 19 SEER2 · heats to 5°F
  79. Cooper & Hunter MIA 24,000 BTU 230V24,000 BTU cooling · 24,000 BTU heating · 18.7 SEER2 · heats to 5°F
  80. Albott 24,000 BTU 230V Mini-Split24,000 BTU cooling · 18 SEER2
  81. COSTWAY 24,000 BTU 230V Mini-Split24,000 BTU cooling · 24,000 BTU heating
  82. MRCOOL Advantage 24,000 BTU 230V24,000 BTU cooling
  83. MRCOOL DIY 24,000 BTU 230V24,000 BTU cooling
  84. Senville AURA 24,000 BTU24,000 BTU cooling · heats to -22°F
  85. Senville LETO 24,000 BTU 230V24,000 BTU cooling · heats to 5°F
  86. Senville LETO 30,000 BTU 230V30,000 BTU cooling · heats to 5°F
  87. Pioneer Diamante Pro 31,500 BTU 230V31,500 BTU cooling · 33,000 BTU heating · 19 SEER2 · heats to -4°F
  88. Senville AURA 33,000 BTU 230V33,000 BTU cooling · heats to -22°F
  89. TOSOT 33,600 BTU 230V Mini-Split33,600 BTU cooling · 33,600 BTU heating · 21 SEER2
  90. DELLA Econo 35,000 BTU 230V35,000 BTU cooling · 17 SEER2
  91. Cooper & Hunter 36,000 BTU 230V Mini-Split36,000 BTU cooling · 19.5 SEER2 · heats to -13°F
  92. DELLA Vario 36,000 BTU 230V36,000 BTU cooling · 36,000 BTU heating · 19 SEER2
  93. Albott 36,000 BTU 230V Mini-Split36,000 BTU cooling · 18 SEER2
  94. Senville LETO 36,000 BTU 230V36,000 BTU cooling · heats to 5°F
Size every room, with climate and insulation

Shop by system

Everything for a ductless install

Pick a category to see every model we cover side by side, with the specifications that decide the purchase.

DELLA Optima 12,000 BTU 230VDuctless Mini-SplitsSingle-zone systems by BTU, SEER2, low-temperature heating, voltage and DIY install.94modelsSenville 4-Zone 36,000 BTU 230V Mini-SplitMulti-Zone SystemsTwo- to five-zone condensers and indoor heads, with which heads work with which condenser.14modelsMidea 12,000 BTU 115V Window Heat PumpWindow and PTAC Heat PumpsWindow and through-the-wall heat pumps that heat as well as cool, for rooms without a split.8modelsDELLA 25 ft Line Set, 1/4 x 3/8 inLine Sets and Install KitsCopper line sets, extensions, flare kits and install kits by length and pipe size.27modelsWeCooper Ground Stand, 9000-24000 BTUMounting, Pads and CoversWall brackets, ground stands, pads, line-set covers and outdoor-unit covers.35modelsAquastrong CDS036-1 Mini-Split Condensate PumpMini-Split Condensate PumpsMini-split condensate pumps for heads where the drain can't run downhill.6modelsCielo Breez EcoMini-Split Controls and ThermostatsWi-Fi controllers, smart thermostats and universal remotes that work with mini-splits.6modelsLeak Saver Mini-Split Cleaning Kit, 27-35 inCleaning and ProtectionCleaning kits, coil cleaners, filters and surge protection to keep a system running.17models

Run the numbers

Sizing, cold-weather and running-cost calculators

Our calculators use the same maker figures as our product pages and show their working.

BTU calculator

Size cooling and heating for a room, with climate, ceiling and insulation.

Cold-climate check

Enter your winter design temperature; see which systems still heat at it.

Running cost

Turn SEER2 and HSPF2 into yearly kWh and dollars at your electricity price.
A white modern living room with a ductless mini-split mounted high on the wall

Rated down to -22°F. Up to 27 SEER2. Every figure straight from the maker, side by side.

Guides

Understand it first

Buying guide115V vs 230V mini-splits: which do you need?Install guideCan you install a mini-split yourself?Sizing guideHow many BTU mini-split do I need?Maintenance guideHow to clean a mini-split head and coilCold-climate guideHyper-heat vs standard mini-splits: do you need a cold-climate model?Cost guideMini-split heat pump vs electric baseboard heat: running costsLibraryAll guides

Lists & head-to-heads

Rules stated, rank shown

Best-ofCold-climate mini-splitsBest-ofMost efficient mini-splitsBest-of115V mini-splitsBest-of9,000 BTU mini-splitsBest-of12,000 BTU mini-splitsBest-of18,000 BTU mini-splitsComparisonMRCOOL DIY vs MRCOOL Easy ProComparisonMRCOOL DIY 24,000 BTU vs MRCOOL Advantage 24,000 BTUComparisonSenville LETO vs Senville AURAComparisonDELLA Vario vs DELLA Optima

How Condensus works

A reference, not a review blog

Makers' own figures

Capacity, SEER2, HSPF2 and low-temperature heating come from each maker's or seller's own published specifications. If a maker doesn't state something, we say so instead of guessing.

Sized to your room

Our calculators start from the ENERGY STAR room sizing chart and show every assumption, so you can see why a system is or isn't the right size.

2026, as it is

The federal 25C credit ended for systems installed after 2025, and new systems use R-32 or R-454B refrigerant. We flag refrigerant and electrical work that needs a licensed installer. How we research.