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DIY 5th Gen Systems

The MRCOOL® DIY® 5th Generation mini-split is the only ductless heat pump system on the market designed for true do-it-yourself installation — no HVAC license, no vacuum pump, and no special tools required. The patented Quick Connect® line set arrives pre-charged with next-generation R-454B refrigerant, meaning you simply connect the line set and power on. Installation typically takes a few hours rather than a full day.

This collection includes everything you need for a complete single-zone DIY system: condensers (outdoor units), wall mount air handlers (indoor units), complete system bundles, and compatible R-454B line sets in multiple lengths.

Available Configurations

BTU Voltage SEER2 HSPF2-4 Coverage
9,000 115V 23.6 11.5 Up to 350 sq. ft.
12,000 115V 23.5 10.2 350–550 sq. ft.
18,000 208/230V 22.5 11.5 500–750 sq. ft.
24,000 208/230V 22.7 9.5 750–1,050 sq. ft.
36,000 208/230V 18.0 8.5 1,000–1,500 sq. ft.

What’s in This Collection

  • Condensers — Outdoor units sold separately for pairing with any compatible air handler
  • Air Handlers — Wall mount indoor units in 115V and 208/230V configurations
  • Complete Bundles — Condenser + air handler + 25ft pre-charged Quick Connect® line set
  • Line Sets — R-454B line sets in 16ft, 25ft, 35ft, and 50ft lengths with optional DIYPro® cable

Filters

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MRCOOL DIY Select bundle white
MRCOOL DIY Select Condenser 360 view 1
$1,068.11 - $1,068.11
$1,068.11
$1,068.11 - $1,068.11
$1,068.11

MRCOOL DIY Select 1st Gen R454B 9K BTU 115V Condenser w/ 11ft Install Kit DIYS-09-HP-C-115A11-O

MRCOOL

The MRCOOL® DIY® Select 9K BTU 115V Ductless Heat Pump Single Zone Mini-Split Condenser is engineered for true do-it-yourself installation, requiri...

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$1,068.11 - $1,068.11
$1,068.11
$1,068.11 - $1,068.11
$1,068.11
MRCOOL DIY Select Air Handler white front
MRCOOL DIY Select 24K 230V Complete System White Bundle
$2,278.80 - $2,278.80
$2,278.80
$2,278.80 - $2,278.80
$2,278.80

MRCOOL DIY Select 1st Gen 24K BTU 230V Complete System DIYS-24-HP-230A11-O

MRCOOL

The MRCOOL® DIY® Select 24K BTU 230V Single Zone Mini-Split Complete System includes both the condenser and wall mount air handler, designed specif...

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$2,278.80 - $2,278.80
$2,278.80
$2,278.80 - $2,278.80
$2,278.80
MRCOOL DIY Select Air Handler white front
MRCOOL DIY Select 18K 230V Complete System White Bundle
$2,028.00 - $2,028.00
$2,028.00
$2,028.00 - $2,028.00
$2,028.00

MRCOOL DIY Select 1st Gen 18K BTU 230V Complete System DIYS-18-HP-230A11-O

MRCOOL

The MRCOOL® DIY® Select 18K BTU 230V Single Zone Mini-Split Complete System includes both the condenser and wall mount air handler, designed to mak...

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$2,028.00 - $2,028.00
$2,028.00
$2,028.00 - $2,028.00
$2,028.00
MRCOOL DIY Select Air Handler white front
MRCOOL DIY Select 12K 115V Complete System White Bundle
$1,678.80 - $1,678.80
$1,678.80
$1,678.80 - $1,678.80
$1,678.80

MRCOOL DIY Select 1st Gen 12K BTU 115V Complete System DIYS-12-HP-115A11-O

MRCOOL

The MRCOOL® DIY® Select 12K BTU 115V Single Zone Mini-Split Complete System includes both the condenser and wall mount air handler, designed to mak...

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$1,678.80 - $1,678.80
$1,678.80
$1,678.80 - $1,678.80
$1,678.80
MRCOOL DIY Select Air Handler white front
MRCOOL DIY Select 9K 115V Complete System White Bundle
$1,498.80 - $1,498.80
$1,498.80
$1,498.80 - $1,498.80
$1,498.80

MRCOOL DIY Select 1st Gen 9K BTU 115V Complete System DIYS-09-HP-115A11-O

MRCOOL

The MRCOOL® DIY® Select 9K BTU 115V Single Zone Mini-Split Complete System includes both the condenser and wall mount air handler, engineered for t...

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$1,498.80 - $1,498.80
$1,498.80
$1,498.80 - $1,498.80
$1,498.80
MRCOOL LineGuard 4.5in 16-Piece Line Set Cover Kit White | MLG450
MRCOOL LineGuard 4.5in 16-Piece Line Set Cover Kit MLG450 - Tan and Gray
$151.98 - $152.98
$151.98 - $152.98
$151.98 - $152.98
$151.98

MRCOOL LineGuard 4.5in 16-Piece Line Set Cover Kit

MRCOOL

The MRCOOL® LineGuard Line Set Cover (MLG450) is a protective exterior line set cover designed for use with MRCOOL® ductless mini-split systems. Th...

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$151.98 - $152.98
$151.98 - $152.98
$151.98 - $152.98
$151.98
Ceiling cassette installed
MRCOOL OuttaSight 18k 230V Ceiling Cassette
$1,656.98 - $1,656.98
$1,656.98
$1,656.98 - $1,656.98
$1,656.98

MRCOOL DIY 5th Gen OuttaSight 18K BTU 230V Ceiling Cassette DIYCASSETTE18HP-230D25-O

MRCOOL

The 5th Generation MRCOOL® DIY® Series Outtasight® 18K BTU 230V One-Way Ceiling Cassette provides efficient and powerful climate control for areas ...

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$1,656.98 - $1,656.98
$1,656.98
$1,656.98 - $1,656.98
$1,656.98
Ceiling cassette installed
MRCOOL OuttaSight 12k 230V Ceiling Cassette
$1,634.98 - $1,634.98
$1,634.98
$1,634.98 - $1,634.98
$1,634.98

MRCOOL DIY 5th Gen OuttaSight 12K BTU 230V Ceiling Cassette DIYCASSETTE12HP-230D25-O

MRCOOL

The 5th Generation MRCOOL® DIY® Series Outtasight® 12K BTU 230V One-Way Ceiling Cassette is a sleek, efficient, and space-saving climate solution f...

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$1,634.98 - $1,634.98
$1,634.98
$1,634.98 - $1,634.98
$1,634.98
Ceiling cassette installed
MRCOOL OuttaSight 9k 230V Ceiling Cassette
$1,621.98 - $1,621.98
$1,621.98
$1,621.98 - $1,621.98
$1,621.98

MRCOOL DIY 5th Gen OuttaSight 9K BTU 230V Ceiling Cassette DIYCASSETTE09HP-230D25-O

MRCOOL

The 5th Generation MRCOOL® DIY® Series Outtasight® 9K BTU 230V One-Way Ceiling Cassette provides a powerful and efficient climate control solution ...

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$1,621.98 - $1,621.98
$1,621.98
$1,621.98 - $1,621.98
$1,621.98
Ceiling cassette installed
MRCOOL OuttaSight 6k 230V Ceiling Cassette
$1,508.98 - $1,508.98
$1,508.98
$1,508.98 - $1,508.98
$1,508.98

MRCOOL DIY 5th Gen OuttaSight 6K BTU 230V Ceiling Cassette DIYCASSETTE06HP-230D25-O

MRCOOL

The 5th Generation MRCOOL® DIY® Series Outtasight® 6K BTU 230V One-Way Ceiling Cassette is a powerful and efficient climate control solution for sp...

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$1,508.98 - $1,508.98
$1,508.98
$1,508.98 - $1,508.98
$1,508.98
55k 6-Zone bundle
MRCOOL DIY 5th Gen 6-Zone 55k Condenser
$4,570.80 - $4,570.80
$4,570.80
$4,570.80 - $4,570.80
$4,570.80

MRCOOL DIY 5th Gen 55K BTU 6-Zone Multi-Zone Condenser 230V DIY-MULTI6-55HP230D-O

MRCOOL

Unveiling the 5th Generation MRCOOL® DIY® 55k BTU 6-Zone Multi-Zone Ductless Mini-Split Condenser — MRCOOL®’s largest and most powerful DIY® system...

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$4,570.80 - $4,570.80
$4,570.80
$4,570.80 - $4,570.80
$4,570.80
6-Zone bundle
MRCOOL DIY 5th Gen 6-Zone 48k Condenser
$3,873.60 - $3,873.60
$3,873.60
$3,873.60 - $3,873.60
$3,873.60

MRCOOL DIY 5th Gen 48K BTU 6-Zone Multi-Zone Condenser 230V DIY-MULTI6-48HP230D-O

MRCOOL

Meet the 5th Generation MRCOOL® DIY® 48k BTU 6-Zone Multi-Zone Ductless Mini-Split Condenser — the most capable multi-zone DIY system MRCOOL® has e...

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$3,873.60 - $3,873.60
$3,873.60
$3,873.60 - $3,873.60
$3,873.60
MRCOOL DIY 5-Zone bundle
MRCOOL DIY 5th Gen 5-Zone Condenser
$3,051.60 - $3,051.60
$3,051.60
$3,051.60 - $3,051.60
$3,051.60

MRCOOL DIY 5th Gen 36K BTU 5-Zone Multi-Zone Condenser 230V DIY-MULTI5-36HP230D-O

MRCOOL

Introducing the 5th Generation MRCOOL® DIY® 36k BTU 5-Zone Multi-Zone Ductless Mini-Split Condenser — your ultimate solution for efficient, whole-h...

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$3,051.60 - $3,051.60
$3,051.60
$3,051.60 - $3,051.60
$3,051.60
MRCOOL DIY 5th Gen 4-Zone Multi-Zone Condenser 230V - Side View
MRCOOL DIY 5th Gen 4-Zone Multi-Zone Condenser 230V DIY-MULTI4-27HP230D-O - Front View
$2,520.00 - $2,520.00
$2,520.00
$2,520.00 - $2,520.00
$2,520.00

MRCOOL DIY 5th Gen 27K BTU 4-Zone Multi-Zone Condenser 230V DIY-MULTI4-27HP230D-O

MRCOOL

Experience unmatched comfort and control with the new 5th Generation MRCOOL® DIY® 27k BTU 4-Zone Ductless Mini-Split Condenser. With true DIY insta...

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$2,520.00 - $2,520.00
$2,520.00
$2,520.00 - $2,520.00
$2,520.00
MRCOOL DIY Multi-Zone bundle
MRCOOL DIY 5th Gen 3-Zone Condenser
$1,866.00 - $1,866.00
$1,866.00
$1,866.00 - $1,866.00
$1,866.00

MRCOOL DIY 5th Gen 18K BTU 3-Zone Multi-Zone Condenser 230V DIY-MULTI3-18HP230D-O

MRCOOL

We’re excited to introduce the 5th Generation MRCOOL® DIY® 18k BTU Multi-Zone Ductless Mini-Split Condenser — the most advanced and convenient mult...

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$1,866.00 - $1,866.00
$1,866.00
$1,866.00 - $1,866.00
$1,866.00
MRCOOL DIY 5th Gen 36k Air Handler
$1,537.20 - $1,537.20
$1,537.20
$1,537.20 - $1,537.20
$1,537.20

MRCOOL DIY 5th Gen 36K BTU 230V Air Handler DIY-36-HP-WMAH-230D25-O

MRCOOL

The 5th Generation MRCOOL® DIY® 36k BTU Ductless Mini-Split Heat Pump Air Handler is a powerful, efficient option for heating and cooling spaces up...

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$1,537.20 - $1,537.20
$1,537.20
$1,537.20 - $1,537.20
$1,537.20
MRCOOL DIY 5th Gen 36k 230V Air Handler included in bundle
MRCOOL DIY 5th Gen 36k Bundle
$4,522.80 - $4,522.80
$4,522.80
$4,522.80 - $4,522.80
$4,522.80

MRCOOL DIY 5th Gen 3 Ton 36K BTU 18 SEER2 R-454B Complete Bundle Wall Mount Mini-Split 208/230V DIY-36-HP-WM-230D25-O

MRCOOL

The MRCOOL® DIY® 5th Generation 36K BTU 18 SEER2 R-454B Complete Bundle includes everything needed for a complete single-zone ductless mini-split i...

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$4,522.80 - $4,522.80
$4,522.80
$4,522.80 - $4,522.80
$4,522.80
MRCOOL DIY 5th Gen 36K BTU 230V Mini-Split Condenser DIY-36-HP-C-230D25-O
$2,488.00 - $2,488.00
$2,488.00
$2,488.00 - $2,488.00
$2,488.00

MRCOOL DIY 5th Gen 36K BTU 230V Mini-Split Condenser DIY-36-HP-C-230D25-O

MRCOOL

Installing an HVAC system may seem like a job for professionals, but the 5th Generation MRCOOL® DIY® 36k BTU 18 SEER Ductless Heat Pump Single Zone...

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$2,488.00 - $2,488.00
$2,488.00
$2,488.00 - $2,488.00
$2,488.00
MRCOOL DIY 5th Gen 24k Air Handler
$1,158.00 - $1,158.00
$1,158.00
$1,158.00 - $1,158.00
$1,158.00

MRCOOL DIY 5th Gen 24K BTU 230V Air Handler DIY-24-HP-WMAH-230D25-O

MRCOOL

The 5th Generation MRCOOL® DIY® 24k BTU Ductless Mini-Split Heat Pump Air Handler offers powerful, energy-efficient heating and cooling for areas u...

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$1,158.00 - $1,158.00
$1,158.00
$1,158.00 - $1,158.00
$1,158.00
MRCOOL DIY 5th Gen 24k 230V Air Handler included in bundle
MRCOOL DIY 5th Gen 24k Bundle
$3,994.80 - $3,994.80
$3,994.80
$3,994.80 - $3,994.80
$3,994.80

MRCOOL DIY 5th Gen 2 Ton 24K BTU 22.7 SEER2 R-454B Complete Bundle Wall Mount Mini-Split 208/230V DIY-24-HP-WM-230D25-O

MRCOOL

The MRCOOL® DIY® 5th Generation 24K BTU 22.7 SEER2 R-454B Complete Bundle includes everything needed for a complete single-zone ductless mini-split...

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$3,994.80 - $3,994.80
$3,994.80
$3,994.80 - $3,994.80
$3,994.80
MRCOOL DIY 5th Gen 24K BTU 230V Mini-Split Condenser DIY-24-HP-C-230D25-O
$2,364.00 - $2,364.00
$2,364.00
$2,364.00 - $2,364.00
$2,364.00

MRCOOL DIY 5th Gen 24K BTU 230V Mini-Split Condenser DIY-24-HP-C-230D25-O

MRCOOL

Installing your own HVAC system doesn’t have to be difficult. The 5th Generation MRCOOL® DIY® 24k BTU 22.7 SEER Ductless Heat Pump Single Zone Mini...

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$2,364.00 - $2,364.00
$2,364.00
$2,364.00 - $2,364.00
$2,364.00
MRCOOL DIY Air Handler
MRCOOL DIY 5th Gen 18k Air Handler
$1,117.20 - $1,117.20
$1,117.20
$1,117.20 - $1,117.20
$1,117.20

MRCOOL DIY 5th Gen 18K BTU 230V Air Handler DIY-18-HP-WMAH-230D25-O

MRCOOL

The 5th Generation MRCOOL® DIY® 18k BTU Ductless Heat Pump Single Zone Mini-Split Air Handler delivers powerful, efficient heating and cooling for ...

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$1,117.20 - $1,117.20
$1,117.20
$1,117.20 - $1,117.20
$1,117.20
MRCOOL DIY 5th Gen 18k 230V Air Handler included in bundle
MRCOOL DIY 5th Gen 18k Bundle
$3,490.80 - $3,490.80
$3,490.80
$3,490.80 - $3,490.80
$3,490.80

MRCOOL DIY 5th Gen 1.5 Ton 18K BTU 22.5 SEER2 R-454B Complete Bundle Wall Mount Mini-Split 208/230V DIY-18-HP-WM-230D25-O

MRCOOL

The MRCOOL® DIY® 5th Generation 18K BTU 22.5 SEER2 R-454B Complete Bundle includes everything needed for a complete single-zone ductless mini-split...

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$3,490.80 - $3,490.80
$3,490.80
$3,490.80 - $3,490.80
$3,490.80
MRCOOL DIY 5th Gen 18K BTU 230V Mini-Split Condenser DIY-18-HP-C-230D25-O
$1,978.00 - $1,978.00
$1,978.00
$1,978.00 - $1,978.00
$1,978.00

MRCOOL DIY 5th Gen 18K BTU 230V Mini-Split Condenser DIY-18-HP-C-230D25-O

MRCOOL

Tackling an HVAC installation yourself may seem daunting, but the 5th Generation MRCOOL® DIY® 18k BTU 22.5 SEER Ductless Heat Pump Single Zone Mini...

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$1,978.00 - $1,978.00
$1,978.00
$1,978.00 - $1,978.00
$1,978.00