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Cold Climate Mini Splits

Every system below is rated to keep producing heat down to -13°F, carries an Energy Star and NEEP listing, and installs without a contractor. If you are shortlisting the best mini splits for cold climates, the three numbers that decide it are the operating floor, the Region IV HSPF2 (8.4–10.5 across this catalogue), and the COP at 5°F — what each one means is below the grid. Filter by capacity, mount, or zone count, then size on the heating load rather than the cooling number.

33 products
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Single Zone Cold Climate Mini Splits

One indoor head, one outdoor unit — one room, rated to keep heating at -13°F.

Heats to -13°FSave $600
Zone Air® DIY 9,000 BTU 23 SEER2 115V Wall Mount Ductless Mini-Split Heat Pump AC & Heater with Pre-Charged Lineset - Up to 450 Sq Ft
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Zone Air® DIY 9,000 BTU 23 SEER2 115V Wall Mount Ductless Mini-Split Heat Pump AC & Heater with Pre-Charged Lineset - Up to 450 Sq Ft

(23)
Up to 450 sq ft|23 SEER2|115V
$1,899.99$2,499.9924% OFF
Monthly financing available with Affirm
Heats to -13°FSave $600
Zone Air® DIY 12,000 BTU 23 SEER2 115V Wall Mount Ductless Mini-Split Heat Pump AC & Heater with Pre-Charged Lineset - Up to 600 Sq Ft
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Zone Air® DIY 12,000 BTU 23 SEER2 115V Wall Mount Ductless Mini-Split Heat Pump AC & Heater with Pre-Charged Lineset - Up to 600 Sq Ft

(23)
Up to 600 sq ft|23 SEER2|115V
$1,999.99$2,599.9923% OFF
Monthly financing available with Affirm
Heats to -13°FSave $550
Zone Air® DIY 9,000 BTU 24 SEER2 230V Wall Mount Ductless Mini-Split Heat Pump AC & Heater with Pre-Charged Lineset - Up to 450 Sq Ft
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Zone Air® DIY 9,000 BTU 24 SEER2 230V Wall Mount Ductless Mini-Split Heat Pump AC & Heater with Pre-Charged Lineset - Up to 450 Sq Ft

(11)
Up to 450 sq ft|24 SEER2|208-230V
$1,949.99$2,499.9922% OFF
Monthly financing available with Affirm
Heats to -13°FSave $550
Zone Air® DIY 12,000 BTU 24 SEER2 230V Wall Mount Ductless Mini-Split Heat Pump AC & Heater with Pre-Charged Lineset - Up to 600 Sq Ft
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Zone Air® DIY 12,000 BTU 24 SEER2 230V Wall Mount Ductless Mini-Split Heat Pump AC & Heater with Pre-Charged Lineset - Up to 600 Sq Ft

(10)
Up to 600 sq ft|24 SEER2|208-230V
$2,049.99$2,599.9921% OFF
Monthly financing available with Affirm
Heats to -13°FSave $500
Zone Air® DIY 18,000 BTU 23 SEER2 230V Wall Mount Ductless Mini-Split Heat Pump AC & Heater with Pre-Charged Lineset - Up to 900 Sq Ft
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Zone Air® DIY 18,000 BTU 23 SEER2 230V Wall Mount Ductless Mini-Split Heat Pump AC & Heater with Pre-Charged Lineset - Up to 900 Sq Ft

(17)
Up to 900 sq ft|23 SEER2|208-230V
$2,599.99$3,099.9916% OFF
Monthly financing available with Affirm
Heats to -13°FSave $730
Zone Air® Airframe 9,500 BTU 21 SEER2 230V Ceiling Cassette Mini-Split Heat Pump AC - Up to 475 Sq Ft
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Zone Air® Airframe 9,500 BTU 21 SEER2 230V Ceiling Cassette Mini-Split Heat Pump AC - Up to 475 Sq Ft

(9)
Up to 475 sq ft|21 SEER2|208-230V
$2,469.99$3,199.9923% OFF
Monthly financing available with Affirm
Heats to -13°FSave $730
Zone Air® Airframe 12,000 BTU 21 SEER2 230V Ceiling Cassette Mini-Split Heat Pump AC - Up to 600 Sq Ft
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Zone Air® Airframe 12,000 BTU 21 SEER2 230V Ceiling Cassette Mini-Split Heat Pump AC - Up to 600 Sq Ft

(5)
Up to 600 sq ft|21 SEER2|208-230V
$2,569.99$3,299.9922% OFF
Monthly financing available with Affirm
Heats to -13°FSave $530
Zone Air® Thin-Air 9,500 BTU 19.6 SEER2 230V Concealed Mini-Split Heat Pump AC - Up to 475 Sq Ft
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Zone Air® Thin-Air 9,500 BTU 19.6 SEER2 230V Concealed Mini-Split Heat Pump AC - Up to 475 Sq Ft

(7)
Up to 475 sq ft|19.6 SEER2|208-230V
$2,069.99$2,599.9920% OFF
Monthly financing available with Affirm
Heats to -13°FSave $530
Zone Air® Thin-Air 11,000 BTU 19 SEER2 230V Concealed Mini-Split Heat Pump AC - Up to 550 Sq Ft
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Zone Air® Thin-Air 11,000 BTU 19 SEER2 230V Concealed Mini-Split Heat Pump AC - Up to 550 Sq Ft

(2)
Up to 550 sq ft|19 SEER2|208-230V
$2,469.99$2,999.9918% OFF
Monthly financing available with Affirm

2 Zone Cold Climate Mini Splits

Two rooms on one condenser. In a cold climate the second zone lets you hold heat where you actually are.

Heats to -13°FSave $1560
Zone Air® DIY DUAL ZONE 24,000 BTU (12K+12K) 24 SEER2 230V Wall Mount Ductless Mini-Split Heat Pump System - Up to 1,200 Sq Ft
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Zone Air® DIY DUAL ZONE 24,000 BTU (12K+12K) 24 SEER2 230V Wall Mount Ductless Mini-Split Heat Pump System - Up to 1,200 Sq Ft

(10)
Up to 1,200 sq ft (600+600, 2 zones)|24 SEER2|208-230V
$3,039.99$4,599.9934% OFF
Monthly financing available with Affirm
Heats to -13°FSave $1160
Zone Air® DIY DUAL ZONE 21,000 BTU (12K+9K) 24 SEER2 230V Wall Mount Ductless Mini-Split Heat Pump System - Up to 1,050 Sq Ft
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Zone Air® DIY DUAL ZONE 21,000 BTU (12K+9K) 24 SEER2 230V Wall Mount Ductless Mini-Split Heat Pump System - Up to 1,050 Sq Ft

(6)
Up to 1,050 sq ft (600+450, 2 zones)|24 SEER2|208-230V
$3,039.99$4,199.9928% OFF
Monthly financing available with Affirm
Heats to -13°FSave $1760
Zone Air® DIY DUAL ZONE 30,000 BTU (12K+18K) 24 SEER2 230V Wall Mount Ductless Mini-Split Heat Pump System - Up to 1,500 Sq Ft
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Zone Air® DIY DUAL ZONE 30,000 BTU (12K+18K) 24 SEER2 230V Wall Mount Ductless Mini-Split Heat Pump System - Up to 1,500 Sq Ft

(1)
Up to 1,500 sq ft (600+900, 2 zones)|24 SEER2|208-230V
$3,539.99$5,299.9933% OFF
Monthly financing available with Affirm
Heats to -13°FSave $1760
Zone Air® DIY DUAL ZONE 27,000 BTU (9K+18K) 24 SEER2 230V Wall Mount Ductless Mini-Split Heat Pump System - Up to 1,350 Sq Ft
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Zone Air® DIY DUAL ZONE 27,000 BTU (9K+18K) 24 SEER2 230V Wall Mount Ductless Mini-Split Heat Pump System - Up to 1,350 Sq Ft

Up to 1,350 sq ft (450+900, 2 zones)|24 SEER2|208-230V
$3,539.99$5,299.9933% OFF
Monthly financing available with Affirm
Heats to -13°FSave $860
Zone Air® DIY DUAL ZONE 18,000 BTU (9K+9K) 24 SEER2 230V Wall Mount Ductless Mini-Split Heat Pump System - Up to 900 Sq Ft
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Zone Air® DIY DUAL ZONE 18,000 BTU (9K+9K) 24 SEER2 230V Wall Mount Ductless Mini-Split Heat Pump System - Up to 900 Sq Ft

(5)
Up to 900 sq ft (450+450, 2 zones)|24 SEER2|208-230V
$3,039.99$3,899.9922% OFF
Monthly financing available with Affirm
Heats to -13°FSave $2160
Zone Air® Airframe DUAL ZONE 24,000 BTU (12K+12K) 21 SEER2 230V Ceiling Cassette Mini-Split Heat Pump System - Up to 1,200 Sq Ft
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Zone Air® Airframe DUAL ZONE 24,000 BTU (12K+12K) 21 SEER2 230V Ceiling Cassette Mini-Split Heat Pump System - Up to 1,200 Sq Ft

(4)
Up to 1,200 sq ft (600+600, 2 zones)|21 SEER2|208-230V
$4,039.99$6,199.9935% OFF
Monthly financing available with Affirm
Heats to -13°FSave $1560
Zone Air® Airframe DUAL ZONE 19,000 BTU (9.5K+9.5K) 21 SEER2 230V Ceiling Cassette Mini-Split Heat Pump System - Up to 950 Sq Ft
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Zone Air® Airframe DUAL ZONE 19,000 BTU (9.5K+9.5K) 21 SEER2 230V Ceiling Cassette Mini-Split Heat Pump System - Up to 950 Sq Ft

(2)
Up to 950 sq ft (475+475, 2 zones)|21 SEER2|208-230V
$4,039.99$5,599.9928% OFF
Monthly financing available with Affirm
Heats to -13°FSave $1860
Zone Air® Airframe DUAL ZONE 21,500 BTU (12K+9.5K) 21 SEER2 230V Ceiling Cassette Mini-Split Heat Pump System - Up to 1,075 Sq Ft
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Zone Air® Airframe DUAL ZONE 21,500 BTU (12K+9.5K) 21 SEER2 230V Ceiling Cassette Mini-Split Heat Pump System - Up to 1,075 Sq Ft

Up to 1,075 sq ft (600+475, 2 zones)|21 SEER2|208-230V
$4,039.99$5,899.9932% OFF
Monthly financing available with Affirm
Heats to -13°FSave $1660
Zone Air® Thin-Air DUAL ZONE 22,000 BTU (11K+11K) 19 SEER2 230V Concealed Mini-Split Heat Pump System - Up to 1,100 Sq Ft
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Zone Air® Thin-Air DUAL ZONE 22,000 BTU (11K+11K) 19 SEER2 230V Concealed Mini-Split Heat Pump System - Up to 1,100 Sq Ft

(3)
Up to 1,100 sq ft (550+550, 2 zones)|19 SEER2|208-230V
$4,039.99$5,699.9929% OFF
Monthly financing available with Affirm
Heats to -13°FSave $1260
Zone Air® Thin-Air DUAL ZONE 19,000 BTU (9.5K+9.5K) 19 SEER2 230V Concealed Mini-Split Heat Pump System - Up to 950 Sq Ft
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Zone Air® Thin-Air DUAL ZONE 19,000 BTU (9.5K+9.5K) 19 SEER2 230V Concealed Mini-Split Heat Pump System - Up to 950 Sq Ft

Up to 950 sq ft (475+475, 2 zones)|19 SEER2|208-230V
$4,039.99$5,299.9924% OFF
Monthly financing available with Affirm
Heats to -13°FSave $1460
Zone Air® Thin-Air DUAL ZONE 20,500 BTU (11K+9.5K) 19 SEER2 230V Concealed Mini-Split Heat Pump System - Up to 1,025 Sq Ft
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Zone Air® Thin-Air DUAL ZONE 20,500 BTU (11K+9.5K) 19 SEER2 230V Concealed Mini-Split Heat Pump System - Up to 1,025 Sq Ft

(1)
Up to 1,025 sq ft (550+475, 2 zones)|19 SEER2|208-230V
$4,039.99$5,499.9927% OFF
Monthly financing available with Affirm

3 Zone Cold Climate Mini Splits

Three rooms, one condenser, one set of penetrations through the envelope — every hole in the wall is a place to lose heat.

Heats to -13°FSave $2090
Zone Air® DIY 3 ZONE 36,000 BTU (12K+12K+12K) 24 SEER2 230V Wall Mount Ductless Mini-Split Heat Pump System - Up to 1,800 Sq Ft
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Zone Air® DIY 3 ZONE 36,000 BTU (12K+12K+12K) 24 SEER2 230V Wall Mount Ductless Mini-Split Heat Pump System - Up to 1,800 Sq Ft

(2)
Up to 1,800 sq ft (600+600+600, 3 zones)|24 SEER2|208-230V
$3,509.99$5,599.9937% OFF
Monthly financing available with Affirm
Heats to -13°FSave $2090
Zone Air® DIY 3 ZONE 27,000 BTU (9K+9K+9K) 24 SEER2 230V Wall Mount Ductless Mini-Split Heat Pump System - Up to 1,350 Sq Ft
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Zone Air® DIY 3 ZONE 27,000 BTU (9K+9K+9K) 24 SEER2 230V Wall Mount Ductless Mini-Split Heat Pump System - Up to 1,350 Sq Ft

Up to 1,350 sq ft (450+450+450, 3 zones)|24 SEER2|208-230V
$3,509.99$5,599.9937% OFF
Monthly financing available with Affirm
Heats to -13°FSave $1590
Zone Air® DIY 3 ZONE 36,000 BTU (9K+9K+18K) 24 SEER2 230V Wall Mount Ductless Mini-Split Heat Pump System - Up to 1,800 Sq Ft
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Zone Air® DIY 3 ZONE 36,000 BTU (9K+9K+18K) 24 SEER2 230V Wall Mount Ductless Mini-Split Heat Pump System - Up to 1,800 Sq Ft

Up to 1,800 sq ft (450+450+900, 3 zones)|24 SEER2|208-230V
$4,009.99$5,599.9928% OFF
Monthly financing available with Affirm
Heats to -13°FSave $2090
Zone Air® DIY 3 ZONE 30,000 BTU (9K+9K+12K) 24 SEER2 230V Wall Mount Ductless Mini-Split Heat Pump System - Up to 1,500 Sq Ft
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Zone Air® DIY 3 ZONE 30,000 BTU (9K+9K+12K) 24 SEER2 230V Wall Mount Ductless Mini-Split Heat Pump System - Up to 1,500 Sq Ft

Up to 1,500 sq ft (450+450+600, 3 zones)|24 SEER2|208-230V
$3,509.99$5,599.9937% OFF
Monthly financing available with Affirm
Heats to -13°FSave $2090
Zone Air® DIY 3 ZONE 33,000 BTU (9K+12K+12K) 24 SEER2 230V Wall Mount Ductless Mini-Split Heat Pump System - Up to 1,650 Sq Ft
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Zone Air® DIY 3 ZONE 33,000 BTU (9K+12K+12K) 24 SEER2 230V Wall Mount Ductless Mini-Split Heat Pump System - Up to 1,650 Sq Ft

Up to 1,650 sq ft (450+600+600, 3 zones)|24 SEER2|208-230V
$3,509.99$5,599.9937% OFF
Monthly financing available with Affirm
Heats to -13°FSave $2390
Zone Air® Airframe 3 ZONE 36,000 BTU (12K+12K+12K) 24 SEER2 230V Ceiling Cassette Mini-Split Heat Pump System - Up to 1,800 Sq Ft
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Zone Air® Airframe 3 ZONE 36,000 BTU (12K+12K+12K) 24 SEER2 230V Ceiling Cassette Mini-Split Heat Pump System - Up to 1,800 Sq Ft

Up to 1,800 sq ft (600+600+600, 3 zones)|24 SEER2|208-230V
$4,909.99$7,299.9933% OFF
Monthly financing available with Affirm
Heats to -13°FSave $2390
Zone Air® Airframe 3 ZONE 28,500 BTU (9.5K+9.5K+9.5K) 24 SEER2 230V Ceiling Cassette Mini-Split Heat Pump System - Up to 1,425 Sq Ft
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Zone Air® Airframe 3 ZONE 28,500 BTU (9.5K+9.5K+9.5K) 24 SEER2 230V Ceiling Cassette Mini-Split Heat Pump System - Up to 1,425 Sq Ft

Up to 1,425 sq ft (475+475+475, 3 zones)|24 SEER2|208-230V
$4,909.99$7,299.9933% OFF
Monthly financing available with Affirm
Heats to -13°FSave $2390
Zone Air® Airframe 3 ZONE 31,000 BTU (12K+9.5K+9.5K) 24 SEER2 230V Ceiling Cassette Mini-Split Heat Pump System - Up to 1,550 Sq Ft
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Zone Air® Airframe 3 ZONE 31,000 BTU (12K+9.5K+9.5K) 24 SEER2 230V Ceiling Cassette Mini-Split Heat Pump System - Up to 1,550 Sq Ft

Up to 1,550 sq ft (600+475+475, 3 zones)|24 SEER2|208-230V
$4,909.99$7,299.9933% OFF
Monthly financing available with Affirm
Heats to -13°FSave $2390
Zone Air® Airframe 3 ZONE 33,500 BTU (12K+12K+9.5K) 24 SEER2 230V Ceiling Cassette Mini-Split Heat Pump System - Up to 1,675 Sq Ft
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Zone Air® Airframe 3 ZONE 33,500 BTU (12K+12K+9.5K) 24 SEER2 230V Ceiling Cassette Mini-Split Heat Pump System - Up to 1,675 Sq Ft

Up to 1,675 sq ft (600+600+475, 3 zones)|24 SEER2|208-230V
$4,909.99$7,299.9933% OFF
Monthly financing available with Affirm
Heats to -13°FSave $1890
Zone Air® Thin-Air 3 ZONE 33,000 BTU (11K+11K+11K) 22 SEER2 230V Concealed Mini-Split Heat Pump System - Up to 1,650 Sq Ft
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Zone Air® Thin-Air 3 ZONE 33,000 BTU (11K+11K+11K) 22 SEER2 230V Concealed Mini-Split Heat Pump System - Up to 1,650 Sq Ft

Up to 1,650 sq ft (550+550+550, 3 zones)|22 SEER2|208-230V
$4,809.99$6,699.9928% OFF
Monthly financing available with Affirm
Heats to -13°FSave $1890
Zone Air® Thin-Air 3 ZONE 28,500 BTU (9.5K+9.5K+9.5K) 22 SEER2 230V Concealed Mini-Split Heat Pump System - Up to 1,425 Sq Ft
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Zone Air® Thin-Air 3 ZONE 28,500 BTU (9.5K+9.5K+9.5K) 22 SEER2 230V Concealed Mini-Split Heat Pump System - Up to 1,425 Sq Ft

Up to 1,425 sq ft (475+475+475, 3 zones)|22 SEER2|208-230V
$4,809.99$6,699.9928% OFF
Monthly financing available with Affirm
Heats to -13°FSave $1890
Zone Air® Thin-Air 3 ZONE 30,000 BTU (11K+9.5K+9.5K) 22 SEER2 230V Concealed Mini-Split Heat Pump System - Up to 1,500 Sq Ft
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Zone Air® Thin-Air 3 ZONE 30,000 BTU (11K+9.5K+9.5K) 22 SEER2 230V Concealed Mini-Split Heat Pump System - Up to 1,500 Sq Ft

Up to 1,500 sq ft (550+475+475, 3 zones)|22 SEER2|208-230V
$4,809.99$6,699.9928% OFF
Monthly financing available with Affirm
Heats to -13°FSave $1890
Zone Air® Thin-Air 3 ZONE 31,500 BTU (11K+11K+9.5K) 22 SEER2 230V Concealed Mini-Split Heat Pump System - Up to 1,575 Sq Ft
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Zone Air® Thin-Air 3 ZONE 31,500 BTU (11K+11K+9.5K) 22 SEER2 230V Concealed Mini-Split Heat Pump System - Up to 1,575 Sq Ft

Up to 1,575 sq ft (550+550+475, 3 zones)|22 SEER2|208-230V
$4,809.99$6,699.9928% OFF
Monthly financing available with Affirm

In a cold climate the heating load governs the size, not the cooling load.

Try the Mini Split Sizing Calculator →

Every Zone Air system is rated to the same -13°F floor — browse the full catalog or compare the best DIY mini splits on all specs.

What the cold-weather ratings mean

Three numbers decide whether a heat pump is genuinely a cold-climate system. Every Zone Air system is rated on all three.

RatingWhat it tells youZone Air
Operating floorThe coldest outdoor temperature the system is rated to produce heat at.-13°F
HSPF2 (Region IV)Heating-season efficiency in the cold-climate region. Higher is better; 7.5 is the legal minimum.8.4–10.5
COP2 at 5°FUnits of heat delivered per unit of electricity, measured at 5°F. Resistance heat is 1.0.2.1

The listings matter as much as the numbers. Energy Star and NEEP are third-party verification that the cold-weather performance was tested rather than advertised, and most state and utility rebate programs check for a NEEP listing before they pay out — the rebate calculator shows what your state offers. Several systems also carry Quebec and Nova Scotia program listings.

Sizing for heat, not for cooling

The square-footage figure on any mini split is a cooling rating. In a cold climate the heating load is usually the larger of the two, so that number overstates what one head will comfortably heat through a northern winter — which is the single most common reason a heat pump “does not work in the cold.” It was sized for July. Run your numbers through the sizing calculator or the Manual J load calculator, and when you land between two capacities, take the larger one. Past three rooms, plan the whole envelope at once with whole home mini splits.

Two placement details earn their keep in snow country: raise the outdoor unit on a bracket or stand above your usual accumulation so drifts cannot block the coil, and keep it clear of roof runoff that can refreeze around the base. Every system here is a DIY mini split on pre-charged line sets, so there is no vacuum pump or EPA license involved in getting one running before winter.

Browse Cold Climate Mini Splits by Size and Form Factor

The whole catalogue heats to -13°F, so the choice is about capacity, where the indoor head goes, and how many rooms are on the system — not about which units survive the winter.

By capacity

By form factor

By number of rooms

What Owners Say

4.8 / 5(141 verified reviews)

As of 2026, the Zone Air cold climate mini split range holds an average rating of 4.8 out of 5 across 141 verified customer reviews spanning 33 systems, with owners most often mentioning cooling performance, quiet operation, and energy savings.

5 stars80%
4 stars18%
3 stars2%
2 stars0%
1 star0%
Good
Jasmine A. • August 1, 2026

Good. Easy to install.

on the Zone Air 12,000 BTU ceiling cassette mini split
Fast shipping
Andrew P. • July 29, 2026

Was hurrying to get this installed because our old ac unit went out and Zone Air expedited shipping for us at no additional cost. I would highly suggest purchasing from Zone Air!

on the Zone Air 9,000 BTU mini split
Good Mini Split
Dan K. • July 18, 2026

Bought this unit over a month ago but just now installed the ceiling cassette.

on the Zone Air 9,000 BTU ceiling cassette mini split
Working Well for Two Bedrooms
Aaron C. • July 17, 2026

We split this Zone Air DIY 12k concealed unit for two small bedrooms. Now the rooms stay within about a degree of the rest of the house, and the rest of the house is even cooler now without the extra load.

on the Zone Air 12,000 BTU concealed ducted mini split
First Mini Split Install
Owen L. • July 13, 2026

This was my first time installing anything HVAC related. I had done basic remodeling and electrical work in the past, but this was not hard at all.

on the Zone Air 12,000 BTU mini split
Great multi zone unit.
Jules F. • July 12, 2026

I'm pretty handy and installed this myself (67 years old). Had no problem handling this myself. I only needed help moving the outdoor condenser around. Upstairs bedrooms were usually about five or six degrees warmer than downstairs. Now the grands can finally come stay over in the summer again.

on the Zone Air 3-zone mini split system
Read all 129 written reviews
Out with the Portable AC
Amy P. • July 7, 2026

Installed our DIY unit in place of one of those portable AC units with the hose hanging out the window. This looks way better. Thanks!

on the Zone Air 9,000 BTU mini split
Love it!
Rachel M. • July 5, 2026

I put a Zone Air 9k DIY unit in my office. It's about 300 square feet, gets a lot of sun. The 9k unit has been cooled this room down great. I didn't expect to work so easily. Quiet too. I’ve had it turned on during every Zoom call the past few weeks and co workers said they can’t even here it!

on the Zone Air 9,000 BTU mini split
I’m glad I chose this DIY mini split
Kai V • July 5, 2026

I am glad I went with a DIY option. The install was manageable, and the room is finally comfortable.

on the Zone Air 2-zone ceiling cassette mini split
Super clean installation and great airflow
Alice P • June 12, 2026

The finished install looks good. Shipping was a little slow.

on the Zone Air 9,000 BTU mini split
Great performance without a complicated install
Piper J • June 3, 2026

The performance has been great without making the install feel overwhelming. It was a practical fix for a room that needed comfort.

on the Zone Air 9,000 BTU ceiling cassette mini split
This system works great in my living room
Sadie L • May 27, 2026

I installed this in my living room, and it has handled the space well. The room feels cooler and more comfortable.

on the Zone Air 18,000 BTU mini split
Great choice for a DIY install
Aaron R • May 20, 2026

For a DIY install, this was a good choice. It was manageable to set up, and the results have been excellent.

on the Zone Air 9,000 BTU mini split
This mini split made summer much easier
Naomi K • May 10, 2026

Summer was a lot easier with this installed. The room stayed comfortable even during the hottest part of the day.

on the Zone Air 2-zone mini split system
Really happy with the energy savings
Skylar O • April 8, 2026

I have noticed that it does not need to work as hard as my old setup. The room stays comfortable without constant blasting.

on the Zone Air 12,000 BTU ceiling cassette mini split
Great ductless system for the money
Cooper I • April 4, 2026

For the money, this ductless system has been a strong purchase. It performs well and looks good installed.

on the Zone Air 9,000 BTU mini split
Very smooth install from start to finish
Lincoln E • March 21, 2026

The install went smoothly from start to finish. Once it was on, it worked exactly how I hoped.

on the Zone Air 12,000 BTU mini split
Easy install and very clean finish
Nolan V • February 10, 2026

The final install came out looking cleaner than I expected. It works well and does not look out of place.

on the Zone Air 18,000 BTU mini split
Excellent DIY mini split experience
Penelope H • December 1, 2025

Overall, I had a really good experience with this. The install was manageable, and the system has worked great.

on the Zone Air 9,000 BTU mini split
Easy setup and excellent comfort
Sebastian J • October 12, 2025

The setup was simple, and the comfort improvement was immediate. I noticed the room feeling better the same day.

on the Zone Air 2-zone mini split system
Great value for a ductless mini split
Hudson C • October 5, 2025

For a ductless setup, this feels like a very good deal. It works well and looks much nicer than I expected.

on the Zone Air 12,000 BTU mini split
Simple install and great results
James B • September 11, 2025

The installation was straightforward, and the result was exactly what I hoped for. The space is finally comfortable.

on the Zone Air 18,000 BTU mini split
Best mini split for my garage setup
Aria T • August 24, 2025

My garage needed something with enough power to actually make a difference. This has handled the space really well.

on the Zone Air 12,000 BTU mini split
Great DIY mini split for homeowners
Levi M • August 11, 2025

This is a nice option for someone who wants to handle the install themselves. The system works well and feels very practical for a homeowner.

on the Zone Air 2-zone ceiling cassette mini split
Very easy to install and use
Henry U • July 8, 2025

The setup was simple enough, and using it day to day has been easy. I mostly just set the temperature and forget about it.

on the Zone Air 12,000 BTU mini split
Excellent performance for a DIY system
Wyatt V • April 26, 2025

For a system I could install myself, the performance has been excellent. It feels like a much more expensive setup than I expected.

on the Zone Air 2-zone ceiling cassette mini split
Works great and looks clean on the wall
Olivia F • April 21, 2025

I was happy with how clean it looked after installation. It does not take over the room, and it works quietly in the background.

on the Zone Air 12,000 BTU mini split
Solid mini split with easy installation
Ethan G • April 15, 2025

The parts felt good out of the box, and the install was easier than I expected. After getting it running, the room cooled down fast and stayed comfortable.

on the Zone Air 18,000 BTU mini split
Installed it myself and it works perfectly
Mason D • March 18, 2025

I took my time with the install and everything came together well. It fired up without any issues and has been running great since.

on the Zone Air 12,000 BTU mini split
Very impressed with this DIY mini split
Noah C • March 17, 2025

I did not expect it to feel this solid for a DIY setup. It has been smooth, quiet, and much stronger than I thought it would be.

on the Zone Air 9,000 BTU mini split
Super easy install and works better than expected
Parker R • February 15, 2025

I was a little nervous before getting started, but the process was pretty straightforward. Once it was running, I was surprised at how quickly the room cooled down.

on the Zone Air 2-zone ceiling cassette mini split
Made my garage comfortable year-round
Jordan K • January 6, 2025

Okay. I struggled installing it.

on the Zone Air 9,000 BTU mini split
Best DIY mini split I’ve ever owned
Avery M • January 5, 2025

I put this in a room that was always either too hot or too cold, and it honestly fixed the problem right away. It has been quiet, easy to use, and way better than the window unit I had before.

on the Zone Air 2-zone mini split system
Efficient and quiet
Jessica T.

This 9K unit has really surprised us - its been a great little unit. The customer support even helped us register the warranty. The high SEER rating has already saved us $80 over the past two months. My husband reckons the installation was easy enough with the pre-charged lineset. We're pretty impressed.

on the Zone Air 9,000 BTU mini split
Energy Star savings are the real deal!
Tom H.

We got a nice rebate from our utility because of the Energy Star certification. The unit has been running for 4 months now and our power bills have definitely gone down. The ECO mode is pretty effective and I love that I can control it from my phone. Installation with the included lineset was pretty straightforward.

on the Zone Air 9,000 BTU mini split
Perfect for my garage workshop!
David M.

I installed this thing in my 400 sq ft garage workshop and its been a total game changer. The 115V plug-and-play was super convenient. Heats fine even below 0°F. The WIFI feature is a nice little touch and the quiet mode is actually quiet - without being annoying.

on the Zone Air 9,000 BTU mini split
Works great, easy installation...mostly
Maria S.

We installed this in our home office and it keeps the room comfortable all year round. The heating surprised me - it worked fine even at 5°F outside. The only thing I'd say is that the remote could be a bit more intuitive - but once you get the hang of it, it's fine. Overall, it's a great value for what we paid.

on the Zone Air 9,000 BTU mini split
Best investment for my home office!
Michael T.

I installed this 12K BTU Wall Mount in my 600 sq ft home office and its been amazing. Super quiet on low settings - I didn't even know it was on during a video call. The heating works great even when its below zero outside. Installation was pretty easy with the pre-charged line set. My power bills have gone down noticeably since chucking the old window unit. Plus its just nice to be able to plug it into a standard 115V outlet.

on the Zone Air 12,000 BTU mini split
Our electric bill went down fast after switching to this 230V mini-split
Chris B.

I swapped a window unit out for this 230V one and it's got a way higher efficiency rating than the 115V version I was used to. The 24 SEER2 rating really shows on our electric bill. Installation was pretty straightforward - we already had a 230V outlet from an old window AC around. Extremely quiet and cools the room fast.

on the Zone Air 12,000 BTU mini split
Perfect for our addition
Patricia S.

We added a 1200 sq ft family room and didn't want to take our existing HVAC out of commission. This 18K unit was the perfect solution. Heating and cooling are both excellent. The smart sleep mode is great - gradually adjusts temperature overnight so we wake up comfortable every morning. Installation with a 208V connection was straightforward for our electrician.

on the Zone Air 18,000 BTU mini split
Exceeds expectations in every way
Thomas K.

After researching extensively, I chose this unit for the 23.5 SEER2 rating and the cold climate certifications. Three months in and it's been flawless. The variable speed operation keeps temperatures rock solid without the on/off cycling of cheaper units. We got an Energy Star rebate from our utility that covered a good chunk of the installation. Highly recommend!

on the Zone Air 18,000 BTU mini split
Dual zone system is the way to go
James R.

As an HVAC contractor I've installed my fair share of dual-zone systems - and this one is an excellent value. The build quality is rock solid, the installation is pretty DIY-friendly with the pre-charged lines, and customers just love the independent zone control. The 24 SEER2 rating means real energy savings, not just some pie-in-the-sky promise.

on the Zone Air 2-zone mini split system
Commercial quality at a DIY price - cant go wrong
Carlos R.

As a small business owner I needed something that looked professional but didnt break the bank. This ceiling cassette delivers on both counts. Installation was manageable with the pre-charged lineset. Our conference room stays comfy year-round.

on the Zone Air 9,000 BTU ceiling cassette mini split
Office upgrade complete
Steven M.

We installed this in our small office with a drop ceiling - looks super professional. The airflow is all over the space, no hot or cold spots anywhere. Way quieter than I expected too. Our clients all comment on how comfy the office is now.

on the Zone Air 9,000 BTU ceiling cassette mini split
Great unit but watch the ceiling height
Rachel K.

The unit works beautifully - super quiet and efficient. Just one thing to watch out for - you really do need a proper drop ceiling or be prepared to do some ceiling work - we had to do some ourselves which added to installation time, but the end result is worth it. The air distribution is noticeably better than wall units.

on the Zone Air 9,000 BTU ceiling cassette mini split
Great unit but plan for installation
Robert M.

The unit itself is great - quiet efficient & the 360 airflow is noticeably better than wall units. My only advice is to plan your installation carefully. You need to have access to the ceiling for the unit and to get the lineset & condensate line in there. We had to do some drywall work, but the end result is well worth it.

on the Zone Air 12,000 BTU ceiling cassette mini split
Totally transformed our conference room
Michael B.

We installed the 12K ceiling cassette in our 550 sq ft conference room & its like night & day - the 4 way air distribution means everyone is comfy, not just the people sitting near the old wall unit. Super quiet too - doesnt even register in meetings.

on the Zone Air 12,000 BTU ceiling cassette mini split
Perfect for our office layout - love it
Richard M.

Installing two units in our open plan office - one for the main work area and one in the conference room. The 360° airflow keeps everyone comfortable no matter where they sit. Having independent control lets us cool down the conference room when the big meetings are happening. Plus the units look super professional.

on the Zone Air 2-zone ceiling cassette mini split
Invisible HVAC - Exactly What We Needed
Katherine P.

We were renovating an old brownstone and we really needed something that wouldn't mess with the original look of the place. This concealed unit is perfect - we installed it in a cramped closet with just two tiny grilles in the ceiling. It's totally invisible. And it's nice and quiet to boot.

on the Zone Air 9,000 BTU concealed ducted mini split
Perfect for our Master Suite
Mark S.

We installed over our master bedroom ceiling and ran supply/return to the bedroom and bathroom. It's super quiet - we can't even hear it running even at night. And it looks super clean too without any wall units around.

on the Zone Air 9,000 BTU concealed ducted mini split
Excellent Unit, Just Needs a Bit of Planning
Ryan T.

The unit performs flawlessly - super quiet, super efficient, totally invisible. Just be aware that installation required a bit more planning than your average wall unit - you need space in the ceiling for ducts and access for service. We hired an HVAC consultant for the design which was money well spent.

on the Zone Air 12,000 BTU concealed ducted mini split
A total game-changer for whole home comfort!
Christopher H.

I installed one unit in the master suite (bedroom, bathroom, closet) and another in the main living areas (living room, dining room, kitchen). The only stuff you can see are some small linear vents - and that's it. You'd never even guess there's a mini-split system back there. Each zone stays exactly the right temperature on its own.

on the Zone Air 2-zone concealed ducted mini split
Absolutely perfect for our old house
Victoria L.

We needed some new heating and cooling for our 1890s Victorian, but we wanted to keep the place looking historic. These units got installed in the attic with little ducts going to these tiny ceiling vents - and the original plaster and trim are completely untouched. It operates super quietly and handles our crazy New England winters like a breeze.

on the Zone Air 2-zone concealed ducted mini split
Works Well
Ken W. • July 31, 2026

Worked well so far.

on the Zone Air 12,000 BTU mini split
Works well
Cole R. • July 28, 2026

The 9k cassette works really well so far.

on the Zone Air 9,000 BTU ceiling cassette mini split
Big Project, Worth the Effort
Marcus S. • July 26, 2026

Three zone system in an older house. Easy enough.

on the Zone Air 3-zone mini split system
Okay but unclear Instructions
Derek B. • July 24, 2026

The mini split itself works fine, but I wasn't impressed with the manual. The diagrams are small. Because of this I did the drain hose wrong the first time and water started to collect in the hose. Still happy with the purchase now that it’s finished.

on the Zone Air 9,000 BTU mini split
Good little unit
Jonathan E. • July 22, 2026

The unit has been great, but I messed up thinking I could connect it to an existing bedroom breaker. That circuit also fed two other rooms, so I ended up having an electrician come out.

on the Zone Air 12,000 BTU mini split
Pretty good
Wesley J. • July 21, 2026

The system works great, was a bigger project than I anticipated.

on the Zone Air 2-zone mini split system
Great for Workshop
Sam O. • July 19, 2026

Put this in a workshop that’s 550 square feet. Works good.

on the Zone Air 12,000 BTU mini split
Very Impressed
Lucy N. • July 16, 2026

Zone Air was recommended to us by a contractor friend. Half the cost of other quoted units and works even better! So glad we took his advice. I am super impressed.

on the Zone Air 9,000 BTU mini split
Handles Our Main Floor Fine
Pat R. • July 14, 2026

The indoor head is larger than I thought, glad we measured the wall first. So far, so good.

on the Zone Air 18,000 BTU mini split
Thanks Nate in customer support
Corey L. • July 11, 2026

Big thanks to Nate in customer service for helping me choose the 230 volt (power was already nearby) otherwise it would have been more work and more money. Overall it’s been great.

on the Zone Air 9,000 BTU mini split
Glad i went with Zone Air
Garrett P. • July 10, 2026

Was choosing between MrCool and Zone Air. I chose Zone Air because they are trying to manufacture in the US, so far it is top notch. Happy to support USA manufacturing!

on the Zone Air 12,000 BTU mini split
Quiet
Mellany H. • July 9, 2026

The noise difference alone made this worth it.

on the Zone Air 12,000 BTU mini split
Split Temperatures Are Great
Hannah L. • July 8, 2026

We use them constantly, no more fighting over the thermostat.

on the Zone Air 2-zone mini split system
Great app and better than wall unit
Mitch T. • July 6, 2026

Great app control. Diagnostics are awesome. Seeing power draw and automated power/refrigerant leak issues is very good. And is not ugly like those wall units. 10/10

on the Zone Air 9,000 BTU concealed ducted mini split
Thanks Customer Support
Theresa S. • July 4, 2026

Great customer service and support. Worked with me to help me order over the phone.

on the Zone Air 12,000 BTU mini split
This unit has been perfect for my space
Ivy G • July 3, 2026

This has been the right fit for my space. It cools well, heats well, and is easy to live with.

on the Zone Air 9,000 BTU ceiling cassette mini split
Comfortable, quiet, and easy to use
Thomas N • July 2, 2026

It has been comfortable, quiet, and simple to use. That is pretty much exactly what I wanted.

on the Zone Air 12,000 BTU mini split
This mini split feels premium for the price
Thomas N • July 1, 2026

For the price, it feels like a premium system. It runs smooth, looks clean, and performs really well.

on the Zone Air 9,000 BTU mini split
Great system for a small house
Quinn W • June 29, 2026

This has worked well for my smaller home. It provides steady comfort without taking up much space.

on the Zone Air 9,000 BTU mini split
Very happy with how fast it cools
Nathan H • June 22, 2026

I am really happy with how quickly it cools. I can feel the room changing within a short time after turning it on.

on the Zone Air 2-zone mini split system
Excellent heating during cold mornings
Christian D • June 10, 2026

The heat has been really nice on cold mornings. It warms the space quickly and makes the room much easier to use.

on the Zone Air 2-zone mini split system
This mini split keeps the room comfortable all day
Christian D • June 5, 2026

It keeps the room comfortable throughout the day. I do not have to keep adjusting it constantly.

on the Zone Air 18,000 BTU mini split
Perfect mini split for a home addition
Sadie L • May 29, 2026

This worked perfectly for my home addition. I did not want to add ductwork, and this solved the problem.

on the Zone Air 9,000 BTU mini split
Very reliable mini split so far
Adrian C • May 26, 2026

So far, it has been very reliable. It starts quickly, cools well, and has not given me any problems.

on the Zone Air 18,000 BTU mini split
This mini split was a great investment
Connor B • May 23, 2026

This was a smart upgrade for my house. The comfort improvement was immediate, and it has been working well.

on the Zone Air 9,000 BTU mini split
Perfect for my converted garage
Bella T • May 22, 2026

I put this in a converted garage, and it really finished the space. It feels like a normal room now.

on the Zone Air 12,000 BTU mini split
Easy to control and very efficient
Connor B • May 22, 2026

The controls are easy, and the unit seems efficient. I do not have to mess with it much once it is set.

on the Zone Air 18,000 BTU mini split
Very pleased with the overall quality
Easton M • May 3, 2026

The quality has been better than I expected. It feels solid, runs smoothly, and has been reliable.

on the Zone Air 2-zone mini split system
Perfect system for my shed office
Easton M • April 29, 2026

I put this in a shed office, and it made the space usable every day. Before that, the temperature was all over the place.

on the Zone Air 12,000 BTU mini split
This mini split looks good and works great
Lucy X • April 28, 2026

It looks good on the wall and works exactly like I wanted. The airflow is strong, and the room cools evenly.

on the Zone Air 9,000 BTU mini split
Great mini split for a guest room
Roman U • April 16, 2026

I put this in a guest room, and it has been perfect. Guests can set the temperature how they like it, and the room stays comfortable.

on the Zone Air 9,000 BTU mini split
This unit cools my space evenly
Roman U • April 9, 2026

The air feels more even throughout the room now. I do not get the same hot spots I used to have.

on the Zone Air 9,000 BTU mini split
This mini split is simple and effective
Cooper I • April 5, 2026

I like how simple it is. It does what it is supposed to do without being complicated.

on the Zone Air 18,000 BTU mini split
Amazing comfort from a compact unit
Cooper I • April 5, 2026

It is a compact unit, but it makes a big difference. The space feels much more comfortable now.

on the Zone Air 9,000 BTU ceiling cassette mini split
This mini split has been running great
Lincoln E • March 23, 2026

It has been running great since I put it in. Cooling, heating, and everyday use have all been solid.

on the Zone Air 2-zone mini split system
This mini split made the room feel brand new
Gabriel A • March 2, 2026

The room feels completely different now. It is more comfortable, more usable, and just feels nicer to spend time in.

on the Zone Air 2-zone mini split system
Great cooling power for the size
Brooklyn Y • February 16, 2026

For its size, it puts out a lot of cooling. I was impressed by how quickly it handled the room.

on the Zone Air 9,000 BTU mini split
This mini split is quiet and efficient
Brooklyn Y • February 13, 2026

It runs quietly and keeps the room comfortable. Compared to what I had before, it feels much more efficient.

on the Zone Air 12,000 BTU mini split
This system made my office usable again
Aurora F • February 2, 2026

My office was almost unusable in the afternoon before this. Now I can work in there all day without getting overheated.

on the Zone Air 2-zone mini split system
Very satisfied with this purchase
Aurora F • January 30, 2026

I am very satisfied with it so far. It made the room more comfortable and has been simple to operate.

on the Zone Air 9,000 BTU mini split
Great option for a garage gym
Ezra G • January 25, 2026

I use this in my workout area, and it has been a big help. It keeps the space comfortable even when I am using the room a lot.

on the Zone Air 9,000 BTU concealed ducted mini split
Perfect for a room without ductwork
Stella N • January 12, 2026

This was a great solution for a room with no ductwork. I got heating and cooling without having to redo the whole space.

on the Zone Air 12,000 BTU ceiling cassette mini split
This mini split cools better than expected
Julian W • December 21, 2025

It cools better than I expected for the size. The room gets comfortable fast and stays that way.

on the Zone Air 12,000 BTU mini split
Great mini split for everyday use
Mateo P • November 24, 2025

This has been easy to use every day. It cools well, responds quickly, and does not need much attention.

on the Zone Air 12,000 BTU mini split
This unit made my basement comfortable
Mateo P • November 9, 2025

My basement used to feel chilly and uncomfortable. This helped make it feel like a real living space.

on the Zone Air 18,000 BTU mini split
Very happy with the heat pump performance
Hannah D • November 4, 2025

The heating side has been very useful. It warms the room quickly and makes cold mornings a lot more comfortable.

on the Zone Air 2-zone mini split system
This mini split runs quiet all night
Sebastian J • October 25, 2025

I leave it running at night, and it has not bothered me at all. It keeps the room cool without waking me up.

on the Zone Air 12,000 BTU mini split
Perfect cooling for my upstairs bedroom
Layla L • October 11, 2025

My upstairs bedroom used to be uncomfortable by the end of the day. This made it much easier to sleep and relax up there.

on the Zone Air 9,000 BTU mini split
This mini split is powerful and efficient
Hudson C • October 10, 2025

The unit has more than enough power for my space. It cools quickly but still runs smoothly and quietly.

on the Zone Air 12,000 BTU mini split
Works great in hot summer weather
Nora S • September 30, 2025

It has handled the hottest days better than I expected. The room stays cool even when the rest of the house feels warm.

on the Zone Air 12,000 BTU mini split
This mini split saved me from using window ACs
James B • September 18, 2025

I got tired of dealing with window AC units, and this was a much better solution. It is quieter, cleaner, and cools better.

on the Zone Air 12,000 BTU mini split
Very impressed with how quiet it is
Isaac R • August 19, 2025

I honestly notice how quiet it is more than anything. It cools the room well without that constant background roar.

on the Zone Air 2-zone mini split system
This unit keeps the room perfectly comfortable
Isaac R • August 16, 2025

The temperature in this room used to swing a lot. Now it stays much more consistent and comfortable.

on the Zone Air 2-zone mini split system
Clean look and excellent performance
Chloe K • August 12, 2025

The finished look is clean, and the performance has been great. It cools the room quickly without being loud.

on the Zone Air 2-zone mini split system
Perfect choice for my bonus room
Scarlett X • July 21, 2025

I had a hard time keeping this room comfortable before. After putting this in, it finally feels like the rest of the house.

on the Zone Air 2-zone mini split system
Strong cooling without being loud
Henry U • July 12, 2025

It has plenty of power without being noisy. The room cools down quickly, but it does not sound like a big appliance running.

on the Zone Air 2-zone mini split system
This mini split works better than my old AC
Ella O • June 30, 2025

Compared to my old AC, this is a big improvement. It is quieter, cools more evenly, and looks much better.

on the Zone Air 9,000 BTU mini split
One of the best home upgrades I’ve done
Owen I • June 24, 2025

This was one of those upgrades where I noticed the difference immediately. I wish I had done it sooner.

on the Zone Air 9,000 BTU mini split
Reliable, quiet, and efficient
Grace Z • June 16, 2025

So far, it has been very dependable. It runs quietly, keeps the temperature steady, and does not feel like it is using a ton of power.

on the Zone Air 18,000 BTU mini split
This mini split made a huge difference
Liam Q • June 10, 2025

The room used to be the one place in the house nobody wanted to sit in. Now it is actually one of the more comfortable spots.

on the Zone Air 9,000 BTU mini split
Very happy with the cooling power
Liam Q • May 26, 2025

I was surprised by how much cooling power it has. The space gets comfortable quickly and stays that way.

on the Zone Air 9,000 BTU mini split
Keeps my bedroom cool and quiet
Caleb A • May 19, 2025

The room stays cool at night without any loud fan noise. It has made sleeping a lot easier during warm weather.

on the Zone Air 9,000 BTU concealed ducted mini split
Great mini split for a workshop
Harper Y • May 10, 2025

I added this to my workspace, and it made a huge difference. I can spend hours out there now without getting uncomfortable.

on the Zone Air 18,000 BTU mini split
This mini split was worth every penny
Wyatt V • April 22, 2025

I waited a bit before writing this because I wanted to see how it would hold up. So far, it has been reliable and definitely worth the money.

on the Zone Air 2-zone mini split system
I’m really happy with this mini split
Isabella N • April 3, 2025

It has done exactly what I needed it to do. The room is more comfortable, the controls are simple, and I have no complaints so far.

on the Zone Air 2-zone mini split system
Great heating and cooling in one unit
Carter W • April 1, 2025

I like not having to switch between different systems depending on the season. It handles warm and cool days really well.

on the Zone Air 12,000 BTU mini split
Perfect mini split for a small room
Mia H • March 30, 2025

I put this in a smaller space and it has been just right. It cools evenly without feeling too strong or uncomfortable.

on the Zone Air 12,000 BTU mini split
Amazing cooling and surprisingly quiet
Lucas P • March 29, 2025

The cooling is strong, but what really surprised me was the noise level. Most of the time I barely notice it running.

on the Zone Air 18,000 BTU mini split
Perfect for my finished attic
Hazel Z • March 26, 2025

My finished attic needed its own comfort solution, and this did the job. It keeps the space usable even when temperatures change outside.

on the Zone Air 2-zone mini split system
Great mini split for the price
Mason D • March 18, 2025

For what I paid, I’m really happy with it. It does the job well, looks nice on the wall, and feels like a good value.

on the Zone Air 12,000 BTU mini split
Exactly what I needed for my home office
Noah C • March 15, 2025

My office used to get stuffy by the afternoon, especially with the computer running. Now it stays comfortable all day, and I can actually focus.

on the Zone Air 2-zone concealed ducted mini split
Cools the room incredibly fast
Emma S • March 1, 2025

The first thing I noticed was how quickly the temperature changed. I can turn it on and feel the difference within a few minutes.

on the Zone Air 9,000 BTU mini split
My favorite mini split so far
Logan B • February 21, 2025

Everything about this has been simple in a good way. It looks clean, cools well, and has been one of those purchases I’m glad I didn’t overthink.

on the Zone Air 2-zone mini split system
Ideal for our garage conversion
Amanda L.

Converted our garage to a home gym and this unit handles it perfectly. The 230V version was the way to go since we already had the wiring in place. The WiFi control is also a big plus - I can cool it down before my workout which is awesome.

on the Zone Air 12,000 BTU mini split
A Game Changer for Restaurants
Michelle K.

We've got one air handler over the dining area and one over the bar. Both zones stay perfectly comfortable thanks to independent control. What I really love is the super quiet operation - guests can have real conversations without the constant hum of the heating or air conditioning. Plus the ceiling mount is way more classy than wall units.

on the Zone Air 2-zone ceiling cassette mini split
Luxury Renovation Essential
Elizabeth R.

Our architect specified these concealed units for our whole home renovation and it looks great. The only visible parts are tiny linear grilles that match our modern design. Worth every penny for the clean look.

on the Zone Air 9,000 BTU concealed ducted mini split

Cold Climate Mini Split FAQ

What actually changes when a heat pump runs below freezing.

Do mini splits work in cold weather?

Yes. A modern inverter heat pump does not stop producing heat when the temperature drops below freezing — Zone Air systems are rated to keep heating down to -13°F outdoor temperature. What changes is capacity: every air-source heat pump produces less heat as it gets colder, because there is less heat in the outside air to move. That is why cold-climate sizing works off the heating load at your design temperature rather than off the cooling number on the box. The systems that struggle in winter are almost always undersized for the heating load, not defective.

Do heat pumps work in freezing temperatures, or do I need backup heat?

They work well below freezing. At 5°F, a Zone Air 12,000 BTU system still returns a COP2 of 2.1, meaning it delivers 2.1 units of heat for every unit of electricity it draws — an electric resistance heater delivers 1.0 at any temperature. Whether you want backup heat depends on how far below the rated -13°F floor your climate goes and how much risk you want to carry. In much of the US a properly sized cold-climate mini split is the only heat a room needs; in the far north, people commonly keep an existing furnace or baseboard as backup for the handful of coldest nights.

How cold can a Zone Air mini split heat?

Down to -13°F outdoor temperature, with an operating range of -13°F to 86°F in heating mode. That figure is the point at which the manufacturer stops rating heat output, not the point where the unit shuts off in a snowstorm. Cooling operates from 5°F to 131°F.

What is HSPF2, and what number should I look for in a cold climate?

HSPF2 is the heating-season efficiency rating — total heat delivered divided by total electricity used across a season. Higher is better. Ratings are published per climate region, and the Region IV number is the cold-climate one, which is why it is the figure shown on each system above. Zone Air systems run from 10.0 to 10.5 HSPF2 in Region IV. For reference, a new heat pump has to hit 7.5 HSPF2 to be sold at all, so anything in the 10s is a strong cold-climate rating.

What does NEEP listed mean?

NEEP is the Northeast Energy Efficiency Partnerships cold-climate air-source heat pump list — an independent registry of systems that meet a defined bar for low-temperature heating performance. It matters for two reasons: it is third-party verification that the cold-weather claims were tested rather than marketed, and many state, provincial, and utility rebate programs require a NEEP listing to qualify. Zone Air systems carry Energy Star and NEEP listings, and several are additionally listed for the Quebec and Nova Scotia programs.

Why does my heat pump blow cold air sometimes in winter?

That is the defrost cycle, and it is normal. In cold, damp weather frost forms on the outdoor coil, which blocks the airflow the system needs to pull heat from. Periodically the unit reverses briefly to melt that frost off, and during those few minutes the indoor head stops delivering warm air. You may also see steam rising off the outdoor unit afterward. A defrost cycle lasting a few minutes every so often is the system working correctly; constant defrosting is not, and usually points to airflow blockage or a low charge.

Should I size a cold climate mini split differently?

Yes, and this is where most cold-climate installs go wrong. In a hot climate you size on the cooling load; in a cold climate the heating load governs, and it is usually the larger of the two. Practically, that means the square-footage figure on a product page — which is a cooling rating — overstates what one head will comfortably heat in a northern winter. Size off your design temperature with the sizing calculator, and if you land between two capacities in a cold climate, take the larger one.

Do I need a base pan heater in a cold climate?

It depends far more on your site than on your temperature. A base pan heater is a small resistive element in the floor of the outdoor unit whose only job is to keep meltwater moving during the defrost cycle. The failure it prevents is specific: the unit sheds frost as liquid water, that water pools in the base, it refreezes before it can drain, and over a series of defrost cycles it builds into an ice slab that blocks the coil and the fan. That is a risk in places that sit below freezing for long uninterrupted stretches with humid air — not in places that merely get cold at night and thaw by afternoon. Most of what a base pan heater does can be achieved by drainage instead, which is why the mounting matters as much as the hardware: raise the unit well above your usual snow depth so the base can drain freely to open air, keep the space beneath it clear rather than packed with snow, and site it away from roof runoff and dripping eaves, which is the most common source of ice under an outdoor unit. If you are in a genuinely severe location — sustained sub-zero, heavy lake-effect snow, or a north-facing spot that never sees sun — ask us before you order and we will tell you what we recommend for that site.

Does the outdoor unit need to be raised off the ground for snow?

Yes, anywhere with meaningful snowfall. Mount the condenser on a bracket or stand that puts it above your typical accumulation depth, so drifting snow cannot block the coil or bury the base, and so meltwater from the defrost cycle can drain away instead of refreezing under the unit. Keep the space around it clear through the winter as well — an outdoor unit packed in snow loses the airflow it needs to make heat.

Get It Running Before the First Freeze

Every Zone Air system heats to -13°F and ships pre-charged for DIY install, with free shipping and a 7-year compressor warranty.

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