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Understanding 48,000 BTU Mini Split Systems
A 48,000 BTU mini split system delivers powerful heating and cooling for larger homes, multi-story layouts, or properties with high BTU demands. The outdoor condenser serves as the central power source, distributing capacity across multiple indoor air handlers to meet room-specific needs.
For example:
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A system may include (1) 18,000 BTU + (1) 18,000 BTU + (1) 12,000 BTU
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Or (2) 24,000 BTU air handlers for two large zones
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Or (4) 12,000 BTU air handlers for four separate rooms
Large systems require careful planning—use our Mini Split Sizing Guide to confirm your layout.
These systems allow you to:
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Cover up to 4-5 zones with a single outdoor unit
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Reduce equipment footprint compared to multiple separate systems
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Achieve whole-home comfort without ductwork
Best for larger homes, new construction, multi-zone retrofits, or properties where running ductwork is impractical or cost-prohibitive.
See full installation considerations in our Mini Split Installation Guide.
MRCOOL DIY 5th Gen 42,000 BTU 2-Zone Ductless Mini Split Air Conditioner & Heat Pump | 6k+36k Wall Mounted | Covers 2 Rooms, 1700 Sq Ft
$5,464.00 – $6,215.00Custom Comfort for Two Zones — MRCOOL DIY 5th Gen 42,000 BTU 2-Zone System Achieve perfect temperatures in two separate areas with the MRCOOL DIY 5th Gen 42k BTU 2-Zone...
MRCOOL DIY 5th Gen 42,000 BTU 2-Zone Ductless Mini Split Air Conditioner & Heat Pump | 18k+24k Wall Mounted | Covers 2 Rooms, 1750 Sq Ft
$5,634.00 – $6,385.00Custom Comfort for Two Zones — MRCOOL DIY 5th Gen 42,000 BTU 2-Zone System Achieve perfect temperatures in two separate areas with the MRCOOL DIY 5th Gen 42k BTU 2-Zone...
MRCOOL DIY 5th Gen 45,000 BTU 2-Zone Ductless Mini Split Air Conditioner & Heat Pump | 9k+36k Wall Mounted | Covers 2 Rooms, 1875 Sq Ft
$5,539.00 – $6,290.00Custom Comfort for Two Zones — MRCOOL DIY 5th Gen 45,000 BTU 2-Zone System Achieve perfect temperatures in two separate areas with the MRCOOL DIY 5th Gen 45k BTU 2-Zone...
MRCOOL DIY 5th Gen 48,000 BTU 2-Zone Ductless Mini Split Air Conditioner & Heat Pump | 12k+36k Wall Mounted | Covers 2 Rooms, 2000 Sq Ft
$5,696.00 – $6,447.00Custom Comfort for Two Zones — MRCOOL DIY 5th Gen 48,000 BTU 2-Zone System Achieve perfect temperatures in two separate areas with the MRCOOL DIY 5th Gen 48k BTU 2-Zone...
MRCOOL DIY 5th Gen 48,000 BTU 2-Zone Ductless Mini Split Air Conditioner & Heat Pump | 24k+24k Wall Mounted | Covers 2 Rooms, 2000 Sq Ft
$5,700.00 – $6,482.00Custom Comfort for Two Zones — MRCOOL DIY 5th Gen 48,000 BTU 2-Zone System Achieve perfect temperatures in two separate areas with the MRCOOL DIY 5th Gen 48k BTU 2-Zone...
MRCOOL DIY 5th Gen 39,000 BTU 3-Zone Ductless Mini Split with Heat Pump | 6k+9k+24k Wall Mounted | Covers 3 Rooms, Up to 1575 Sq Ft
$5,907.00 – $7,018.00Custom Comfort for Three Zones — MRCOOL DIY 5th Gen 39,000 BTU 3-Zone System Achieve perfect temperatures in three separate areas with the MRCOOL DIY 5th Gen 39k BTU 3-Zone...
MRCOOL DIY 5th Gen 39,000 BTU 3-Zone Ductless Mini Split with Heat Pump | 9k+12k+18k Wall Mounted | Covers 3 Rooms, Up to 1625 Sq Ft
$6,073.00 – $7,153.00Custom Comfort for Three Zones — MRCOOL DIY 5th Gen 39,000 BTU 3-Zone System Achieve perfect temperatures in three separate areas with the MRCOOL DIY 5th Gen 39k BTU 3-Zone...
MRCOOL DIY 5th Gen 42,000 BTU 3-Zone Ductless Mini Split with Heat Pump | 6k+12k+24k Wall Mounted | Covers 3 Rooms, Up to 1700 Sq Ft
$6,064.00 – $7,175.00Custom Comfort for Three Zones — MRCOOL DIY 5th Gen 42,000 BTU 3-Zone System Achieve perfect temperatures in three separate areas with the MRCOOL DIY 5th Gen 42k BTU 3-Zone...
MRCOOL DIY 5th Gen 42,000 BTU 3-Zone Ductless Mini Split with Heat Pump | 6k+18k+18k Wall Mounted | Covers 3 Rooms, Up to 1700 Sq Ft
$6,252.00 – $7,332.00Custom Comfort for Three Zones — MRCOOL DIY 5th Gen 42,000 BTU 3-Zone System Achieve perfect temperatures in three separate areas with the MRCOOL DIY 5th Gen 42k BTU 3-Zone...
MRCOOL DIY 5th Gen 42,000 BTU 3-Zone Ductless Mini Split with Heat Pump | 9k+9k+24k Wall Mounted | Covers 3 Rooms, Up to 1750 Sq Ft
$5,982.00 – $7,093.00Custom Comfort for Three Zones — MRCOOL DIY 5th Gen 42,000 BTU 3-Zone System Achieve perfect temperatures in three separate areas with the MRCOOL DIY 5th Gen 42k BTU 3-Zone...
MRCOOL DIY 5th Gen 42,000 BTU 3-Zone Ductless Mini Split with Heat Pump | 12k+12k+18k Wall Mounted | Covers 3 Rooms, Up to 1750 Sq Ft
$6,230.00 – $7,310.00Custom Comfort for Three Zones — MRCOOL DIY 5th Gen 42,000 BTU 3-Zone System Achieve perfect temperatures in three separate areas with the MRCOOL DIY 5th Gen 42k BTU 3-Zone...
MRCOOL DIY 5th Gen 45,000 BTU 3-Zone Ductless Mini Split with Heat Pump | 9k+12k+24k Wall Mounted | Covers 3 Rooms, Up to 1875 Sq Ft
$6,139.00 – $7,250.00Custom Comfort for Three Zones — MRCOOL DIY 5th Gen 45,000 BTU 3-Zone System Achieve perfect temperatures in three separate areas with the MRCOOL DIY 5th Gen 45k BTU 3-Zone...
MRCOOL DIY 5th Gen 45,000 BTU 3-Zone Ductless Mini Split with Heat Pump | 9k+18k+18k Wall Mounted | Covers 3 Rooms, Up to 1875 Sq Ft
$6,327.00 – $7,407.00Custom Comfort for Three Zones — MRCOOL DIY 5th Gen 45,000 BTU 3-Zone System Achieve perfect temperatures in three separate areas with the MRCOOL DIY 5th Gen 45k BTU 3-Zone...
MRCOOL DIY 5th Gen 48,000 BTU 3-Zone Ductless Mini Split with Heat Pump | 6k+6k+36k Wall Mounted | Covers 3 Rooms, Up to 1900 Sq Ft
$6,148.00 – $7,259.00Custom Comfort for Three Zones — MRCOOL DIY 5th Gen 48,000 BTU 3-Zone System Achieve perfect temperatures in three separate areas with the MRCOOL DIY 5th Gen 48k BTU 3-Zone...
MRCOOL DIY 5th Gen 48,000 BTU 3-Zone Ductless Mini Split with Heat Pump | 6k+18k+24k Wall Mounted | Covers 3 Rooms, Up to 1950 Sq Ft
$6,318.00 – $7,429.00Custom Comfort for Three Zones — MRCOOL DIY 5th Gen 48,000 BTU 3-Zone System Achieve perfect temperatures in three separate areas with the MRCOOL DIY 5th Gen 48k BTU 3-Zone...
MRCOOL DIY 5th Gen 48,000 BTU 3-Zone Ductless Mini Split with Heat Pump | 12k+18k+18k Wall Mounted | Covers 3 Rooms, Up to 2000 Sq Ft
$6,484.00 – $7,564.00Custom Comfort for Three Zones — MRCOOL DIY 5th Gen 48,000 BTU 3-Zone System Achieve perfect temperatures in three separate areas with the MRCOOL DIY 5th Gen 48k BTU 3-Zone...
MRCOOL DIY 5th Gen 48,000 BTU 3-Zone Ductless Mini Split with Heat Pump | 12k+12k+24k Wall Mounted | Covers 3 Rooms, Up to 2000 Sq Ft
$6,296.00 – $7,407.00Custom Comfort for Three Zones — MRCOOL DIY 5th Gen 48,000 BTU 3-Zone System Achieve perfect temperatures in three separate areas with the MRCOOL DIY 5th Gen 48k BTU 3-Zone...
MRCOOL DIY 5th Gen 39,000 BTU 4-Zone Ductless Mini Split with Heat Pump | 6k+9k+12k+12k Wall Mounted | Covers 4 Rooms, Up to 1575 Sq Ft
$6,503.00-$7,943.00Custom Comfort for Four Zones — MRCOOL DIY 5th Gen 39,000 BTU Multi-Zone System Achieve perfect temperatures in four separate areas with the MRCOOL DIY 5th Gen 39k BTU 4-Zone...
MRCOOL DIY 5th Gen 39,000 BTU 4-Zone Ductless Mini Split with Heat Pump | 6k+6k+9k+18k Wall Mounted | Covers 4 Rooms, Up to 1525 Sq Ft
$6,525.00-$7,965.00Custom Comfort for Four Zones — MRCOOL DIY 5th Gen 39,000 BTU Multi-Zone System Achieve perfect temperatures in four separate areas with the MRCOOL DIY 5th Gen 39k BTU 4-Zone...
MRCOOL DIY 5th Gen 39,000 BTU 4-Zone Ductless Mini Split with Heat Pump | 9k+9k+9k+12k Wall Mounted | Covers 4 Rooms, Up to 1625 Sq Ft
$6,421.00-$7,861.00Custom Comfort for Four Zones — MRCOOL DIY 5th Gen 39,000 BTU Multi-Zone System Achieve perfect temperatures in four separate areas with the MRCOOL DIY 5th Gen 39k BTU 4-Zone...
MRCOOL DIY 5th Gen 42,000 BTU 4-Zone Ductless Mini Split with Heat Pump | 6k+12k+12k+12k Wall Mounted | Covers 4 Rooms, Up to 1700 Sq Ft
$6,660.00-$8,100.00Custom Comfort for Four Zones — MRCOOL DIY 5th Gen 42,000 BTU Multi-Zone System Achieve perfect temperatures in four separate areas with the MRCOOL DIY 5th Gen 42k BTU 4-Zone...
MRCOOL DIY 5th Gen 42,000 BTU 4-Zone Ductless Mini Split with Heat Pump | 6k+9k+9k+18k Wall Mounted | Covers 4 Rooms, Up to 1700 Sq Ft
$6,600.00-$8,040.00Custom Comfort for Four Zones — MRCOOL DIY 5th Gen 42,000 BTU Multi-Zone System Achieve perfect temperatures in four separate areas with the MRCOOL DIY 5th Gen 42k BTU 4-Zone...
MRCOOL DIY 5th Gen 42,000 BTU 4-Zone Ductless Mini Split with Heat Pump | 6k+6k+12k+18k Wall Mounted | Covers 4 Rooms, Up to 1650 Sq Ft
$6,682.00-$8,122.00Custom Comfort for Four Zones — MRCOOL DIY 5th Gen 42,000 BTU Multi-Zone System Achieve perfect temperatures in four separate areas with the MRCOOL DIY 5th Gen 42k BTU 4-Zone...
MRCOOL DIY 5th Gen 42,000 BTU 4-Zone Ductless Mini Split with Heat Pump | 6k+6k+6k+24k Wall Mounted | Covers 4 Rooms, Up to 1600 Sq Ft
$6,516.00-$7,987.00Custom Comfort for Four Zones — MRCOOL DIY 5th Gen 42,000 BTU Multi-Zone System Achieve perfect temperatures in four separate areas with the MRCOOL DIY 5th Gen 42k BTU 4-Zone...