18,000 BTU/1.5 TON V/O 21 seer

Filter
Sort by:
Show:
R454B
Cooper & Hunter dual zone ductless mini split 12k concealed duct AC system
Cooper & Hunter

2 Zone 18,000 BTU Ducted Mini Split AC Concealed Duct 12k+12k

  ALL OF OUR MULTI ZONE SYSTEMS COME PRE-BUNDLED WITH A 25FT INSTALLATION KIT FOR EACH ZONE. WE CARRY 16FT, 25FT, AND 50FT. SEND US A MESSAGE OR GIVE US A CALL...
Free Shipping
$3,135.00
15% OFF
R410A
White air conditioning system from 2 Zone 18,000 BTU OLMO Sierra mini split wall mount ductless unit
OLMO

2 Zone 18,000 BTU OLMO Sierra Ductless Mini Split AC Wall Mounted 12k+12k

  *ALL OF OUR OLMO MULTI ZONE SYSTEMS COME PRE-BUNDLED WITH A 16FT INSTALLATION KIT FOR EACH ZONE. WE CARRY 16FT, 25FT, AND 50FT. TO CUSTOMIZE, GIVE US A CALL!...
Free Shipping
$1,758.00 $1,494.30
15% OFF
R410A
White air conditioning system from 2 Zone 18,000 BTU OLMO Sierra mini split wall mount ductless unit
OLMO

2 Zone 18,000 BTU OLMO Sierra Ductless Mini Split AC Wall Mounted 9k+9k

  *ALL OF OUR OLMO MULTI ZONE SYSTEMS COME PRE-BUNDLED WITH A 16FT INSTALLATION KIT FOR EACH ZONE. WE CARRY 16FT, 25FT, AND 50FT. TO CUSTOMIZE, GIVE US A CALL!...
Free Shipping
$1,746.00 $1,484.10
15% OFF
R410A
White split-system air conditioner with remote, perfect for 2 zone wall mount ductless mini split AC
OLMO

2 Zone 18,000 BTU OLMO Sierra Ductless Mini Split AC Wall Mounted 9k+12k

  *ALL OF OUR OLMO MULTI ZONE SYSTEMS COME PRE-BUNDLED WITH A 16FT INSTALLATION KIT FOR EACH ZONE. WE CARRY 16FT, 25FT, AND 50FT. TO CUSTOMIZE, GIVE US A CALL!...
Free Shipping
$1,752.00 $1,489.20
Show:

18,000 BTU Outdoor Ductless Mini Split Systems

Explore our comprehensive collection of 18,000 BTU outdoor ductless mini split air conditioners, designed for efficient and reliable cooling. These innovative mini split HVAC systems deliver high SEER2 ratings for energy efficiency and cost savings—ideal for your apartment or office. Within this collection, you’ll find trusted Cooper & Hunter mini splits, including wall-mounted models equipped with Wi-Fi connectivity and heat pump functionality.

These 18,000 BTU outdoor mini split systems offer a seamless, ductless solution for maintaining comfort year-round. Discover advanced technology, superior performance, and quiet operation—all engineered for enhanced climate control and convenience.

🎯 Looking for Great Deals on 18,000 BTU Mini Splits?

Browse our SALE Collection for discounted ductless mini splits, heat pumps, and AC units from top brands.

  • ✅ Energy-efficient cooling & heating
  • ✅ Premium brands & models
  • ✅ Limited-time discounts
👉 Shop Now

18,000 BTU Mini Split FAQs

What size room will an 18,000 BTU mini split cool?

An 18,000 BTU ductless system (≈1.5 tons) is typically suited for 600–1,000 sq ft spaces such as large bedrooms, living rooms, or garages. For dual-zone setups, it can support indoor units totaling ~24k BTU, depending on layout and insulation.

How much does an 18,000 BTU mini split cost installed in 2025?

As of 2025, a fully installed 18,000 BTU ductless unit costs $4,500–$6,500 on average. Factors include brand, SEER2 efficiency, electrical upgrades, and local labor rates.

Are rebates or tax credits available for 18,000 BTU units?

Yes—qualifying ENERGY STAR® ductless mini splits may be eligible for a 30 % federal tax credit (up to $2,000 annually), plus $200–$800 in typical utility rebates. Eligibility depends on SEER2 rating and location.

Can I install an 18,000 BTU system myself?

DIY is only possible with pre-charged, quick-connect kits. Most 18k systems require licensed installation for refrigerant handling and warranty compliance. Professional installation is recommended to ensure efficiency and rebate eligibility.