Certified-data shortlist

Garage mini-split picks

Cold-climate models in the 6,000–24,000 BTU range cover the usual one- and two-car garage size classes. An uninsulated or unusually tall garage still needs a load calculation.

Start with the right size class, then compare the published efficiency and performance numbers.

Illustration: garage workshop with a wall-mounted ductless mini-split indoor head

Source-backed shortlist

15 picks from 336 matching models.

How these picks are ranked: Grouped by heating size, then ranked by HSPF2 (heating efficiency) and SEER2 (cooling efficiency). Every model is cold-climate listed and rated between 6,000 and 24,000 BTU/h at 47°F. Source: official certification records only.

6,000 BTU class

Top 3 of 10 matching models in this size class.

See all 92 in this size ↗

#1 in this size

ACIQ ACIQ series unit (same housing as ACIQ-06ZPL-HP230C)

Same housing as ACIQ-09ZPL-HP230C; small details may differ.

25.5 SEER2

ACIQ 7,000 BTU Wall-Mount

Good for small rooms around 250–300 sq. ft. and cold climates.

ENERGY STAR-certifiedccASHP-listed

Check model number ACIQ-06ZPL-HP230C / ACIQ-06W-HH-MD at your preferred retailer.

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Model #: ACIQ-06ZPL-HP230C / ACIQ-06W-HH-MD

#2 in this size

Senville SENA-06HF-OG outdoor mini-split unit

Photo of this model. Image details

25.5 SEER2

Senville 7,000 BTU Wall-Mount

Good for small rooms around 250–300 sq. ft. and cold climates.

ENERGY STAR-certifiedccASHP-listed

Check model number SENA-06HF-OG / SENA-06HF-IGG at your preferred retailer.

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Model #: SENA-06HF-OG / SENA-06HF-IGG

#3 in this size

ACIQ ACIQ series unit (same housing as ACIQ-06ZPL-HP230C)

Same housing as ACIQ-09ZPL-HP230C; small details may differ.

25.3 SEER2

ACIQ 7,000 BTU Wall-Mount

Good for small rooms around 250–300 sq. ft. and cold climates.

ENERGY STAR-certifiedccASHP-listed

Check model number ACIQ-06ZPL-HP230C / ACIQ-06W-BL-MD at your preferred retailer.

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Model #: ACIQ-06ZPL-HP230C / ACIQ-06W-BL-MD

9,000 BTU class

Top 3 of 64 matching models in this size class.

See all 92 in this size ↗

#1 in this size

ACIQ ACIQ-09ZS-HP230C outdoor mini-split unit

Photo of this model. Image details

26 SEER2

ACIQ 9,000 BTU Wall-Mount

Good for bedrooms or offices around 350–400 sq. ft. and cold climates.

ENERGY STAR-certifiedccASHP-listed

Check model number ACIQ-09ZS-HP230C / ACIQ-09FM-HH-MD at your preferred retailer.

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Model #: ACIQ-09ZS-HP230C / ACIQ-09FM-HH-MD

#2 in this size

ACIQ ACIQ-09ZS-HP230C outdoor mini-split unit

Photo of this model. Image details

26 SEER2

ACIQ 9,000 BTU Wall-Mount

Good for bedrooms or offices around 350–400 sq. ft. and cold climates.

ENERGY STAR-certifiedccASHP-listed

Check model number ACIQ-09ZS-HP230C / ACIQ-12FM-HH-MD at your preferred retailer.

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Model #: ACIQ-09ZS-HP230C / ACIQ-12FM-HH-MD

#3 in this size

ACIQ ACIQ-09ZPL-HP230C outdoor mini-split unit

Photo of this model. Image details

20.5 SEER2

ACIQ 9,900 BTU Wall-Mount

Good for bedrooms or offices around 400–450 sq. ft. and cold climates.

ENERGY STAR-certifiedccASHP-listed

Check model number ACIQ-09ZPL-HP230C / ACIQ-09CD-HH-MC at your preferred retailer.

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Model #: ACIQ-09ZPL-HP230C / ACIQ-09CD-HH-MC

12,000 BTU class

Top 3 of 105 matching models in this size class.

See all 129 in this size ↗

#1 in this size

Senville SENE-09EL-OH outdoor mini-split unit

Photo of this model. Image details

33.3 SEER2

Senville 12,000 BTU Wall-Mount

Good for bedrooms or offices around 450–550 sq. ft. and cold climates.

ENERGY STAR-certifiedccASHP-listed

Check model number SENE-09EL-OH / SENE-09EL-IHH at your preferred retailer.

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Model #: SENE-09EL-OH / SENE-09EL-IHH

#2 in this size

Senville SENE-12EL-OH outdoor mini-split unit

Photo of this model. Image details

29.4 SEER2

Senville 12,000 BTU Wall-Mount

Good for bedrooms or offices around 450–550 sq. ft. and cold climates.

ENERGY STAR-certifiedccASHP-listed

Check model number SENE-12EL-OH / SENE-12EL-IHH at your preferred retailer.

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Model #: SENE-12EL-OH / SENE-12EL-IHH

#3 in this size

ACIQ ACIQ-09ZPL-HP230C outdoor mini-split unit

Photo of this model. Image details

27.4 SEER2

ACIQ 12,000 BTU Wall-Mount

Good for bedrooms or offices around 450–550 sq. ft. and cold climates.

ENERGY STAR-certifiedccASHP-listed

Check model number ACIQ-09ZPL-HP230C / ACIQ-09W-HH-MD at your preferred retailer.

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See full specs ↗

Model #: ACIQ-09ZPL-HP230C / ACIQ-09W-HH-MD

18,000 BTU class

Top 3 of 130 matching models in this size class.

See all 163 in this size ↗

#1 in this size

Photo coming soonWe do not have a confirmed photo for model SENE-18EL-IHH yet.

25.6 SEER2

Senville 20,000 BTU Wall-Mount

Good for open rooms around 1000–1200 sq. ft. and cold climates.

ENERGY STAR-certifiedccASHP-listed

Check model number SENE-18EL-IHH / SENE-18EL-OH at your preferred retailer.

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Model #: SENE-18EL-IHH / SENE-18EL-OH

#2 in this size

Senville SENE-18EL-OH outdoor mini-split unit

Photo of this model. Image details

25.6 SEER2

Senville 20,000 BTU Wall-Mount

Good for open rooms around 1000–1200 sq. ft. and cold climates.

ENERGY STAR-certifiedccASHP-listed

Check model number SENE-18EL-OH / SENE-18EL-IHH at your preferred retailer.

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Model #: SENE-18EL-OH / SENE-18EL-IHH

#3 in this size

Pioneer YN018GMSI24RPG outdoor mini-split unit

Photo of this model. Image details

23.8 SEER2

Pioneer 17,000 BTU Wall-Mount

Good for open rooms around 700–1000 sq. ft. and cold climates.

ENERGY STAR-certifiedccASHP-listed

Check model number YN018GMSI24RPG / FB018GMSILDFHG at your preferred retailer.

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Model #: YN018GMSI24RPG / FB018GMSILDFHG

24,000 BTU class

Top 3 of 27 matching models in this size class.

See all 101 in this size ↗

#1 in this size

Senville SENE-24EL-OH outdoor mini-split unit

Photo of this model. Image details

25 SEER2

Senville 24,000 BTU Wall-Mount

Good for large rooms around 1400–1500 sq. ft. and cold climates.

ENERGY STAR-certifiedccASHP-listed

Check model number SENE-24EL-OH / SENE-24EL-IHH at your preferred retailer.

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Model #: SENE-24EL-OH / SENE-24EL-IHH

#2 in this size

Photo coming soonWe do not have a confirmed photo for model ACIQ-24Z-E-HH-M3 yet.

24 SEER2

ACIQ 24,000 BTU Wall-Mount

Good for large rooms around 1400–1500 sq. ft. and cold climates.

ENERGY STAR-certifiedccASHP-listed

Check model number ACIQ-24Z-E-HH-M3 at your preferred retailer.

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Model #: ACIQ-24Z-E-HH-M3

#3 in this size

Pioneer YN024GMFI22RPE outdoor mini-split unit

Photo of this model. Image details

21.2 SEER2

Pioneer 24,000 BTU Wall-Mount

Good for large rooms around 1400–1500 sq. ft. and cold climates.

ENERGY STAR-certifiedccASHP-listed

Check model number YN024GMFI22RPE / UB024GMFILCFHD at your preferred retailer.

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Model #: YN024GMFI22RPE / UB024GMFILCFHD