28,000 BTU/2.33 TON

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28K BTU28,000 BTU Ductless Mini Split Systems

Engineered for superior comfort and maximum energy efficiency. A 28,000 BTU mini split (approx. 2.33-ton) pairs one powerful outdoor condenser with your choice of indoor air handlers. It is the perfect solution for independently heating and cooling large, open-concept spaces up to 1,600 sq ft without the need for bulky ductwork. Whether you require a customizable multi-zone heat pump (such as a 9k+12k+12k setup), a robust single-zone AC unit, or a system equipped with hyper-heating capabilities, this collection offers versatile options to perfectly suit your home or business.

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⚡ 28K BTU • Powerful Cooling & Heating

28,000 BTU Outdoor Ductless Mini Split Systems

Discover the ultimate climate control solution for your spacious home, office, or commercial area. Our premium 28,000 BTU mini split air conditioners and heat pumps deliver powerful, ultra-efficient performance with up to 30% energy savings compared to traditional systems. Featuring advanced Inverter Technology, these units adjust power dynamically, ensuring precise temperature regulation without utility bill spikes. Choose from industry-leading brands like Cooper & Hunter, OLMO, and BRAVO for reliable, whisper-quiet indoor comfort all year round.

  • 🏠 1,350–1,600 sq ft coverage
  • 🎛️ Multi-Zone Ready (e.g., 9k+12k+12k)
  • 🏢 Perfect for High Ceilings
  • ⚡ Smart Inverter Tech
  • 🔧 2.33 TON capacity

Why Upgrade to a 28,000 BTU System?

Hitting the strategic "sweet spot" of roughly 2.33 tons, a 28K BTU unit bridges the gap between mid-size and commercial-grade cooling. It is highly sought after for outfitting open-concept floor plans, large basements, or designing a highly customized multi-zone climate layout.

  • ✓
    Exceptional Multi-Zone Flexibility
    Easily connect 2 to 3 indoor air handlers (such as a 9k + 12k + 12k combination) to independently climate-control separate rooms off a single outdoor compressor.
  • ✓
    Year-Round Hyper-Heating
    Don't just cool! Our 28k heat pump systems provide robust heating even in harsh winters, with many models rated to operate in temperatures plunging to -13°F or -22°F.
  • ✓
    High SEER2 Energy Efficiency
    Equipped with state-of-the-art variable-speed inverter compressors, these systems prevent short-cycling, drastically reducing electricity consumption and qualifying for various eco-rebates.
  • ✓
    Smart Home Ready & Whisper-Quiet
    Enjoy peaceful operation as low as 25-30 dB indoors. Many units feature built-in Wi-Fi, allowing you to monitor and adjust temperatures remotely via your smartphone.

Important Sizing Advice: Always perform a Manual J load calculation before purchasing. An oversized unit can cool the space too quickly without removing humidity, leaving your room feeling cold and clammy.

Comprehensive BTU to TON Conversion

Use our detailed chart to perfectly match your square footage to the right HVAC capacity.

BTU/hr TON Capacity
6,000 BTU 0.5 TON
9,000 BTU 0.75 TON
12,000 BTU 1 TON
18,000 BTU 1.5 TON
19,000 BTU 1.58 TON
24,000 BTU 2 TON
28,000 BTU 2.33 TON
30,000 BTU 2.5 TON
36,000 BTU 3 TON
42,000 BTU 3.5 TON
48,000 BTU 4 TON
55,000 BTU 4.58 TON
60,000 BTU 5 TON
*Sizing Note: A higher BTU rating delivers more output for larger spaces. When sizing a multi-zone system, always calculate an 80–85% diversity factor, as not all zones will run at maximum capacity simultaneously.

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Expert Answers: 28,000 BTU Mini Split FAQs

🏠 Is a 28,000 BTU unit the right size for my space? ›
A 28k BTU (2.33-ton) mini-split is typically designed to cool and heat expansive open areas of 1,350 to 1,600 square feet, assuming average room insulation and standard 8-foot ceilings. If your space features vaulted ceilings, massive sun-facing windows, or poor insulation, you may need to adjust your sizing. Always consult a Manual J calculation for exact precision.
⚖️ Why choose a 28k BTU system instead of a 24k BTU system? ›
The jump from 24,000 BTU (2 Tons) to 28,000 BTU (2.33 Tons) provides roughly 16% more cooling and heating power. This is perfect if your room size falls right on the borderline where a 2-ton unit would struggle on the hottest days, but a 3-ton (36,000 BTU) unit would be severely oversized and inefficient.
⇄ Can I run multiple indoor units on a 28k BTU outdoor condenser? ›
Absolutely! Many 28k condensers from trusted brands like Cooper & Hunter are specifically designed for multi-zone setups, allowing you to connect up to 3 individual indoor air handlers. The system's smart inverter compressor dynamically distributes the refrigerant depending on which rooms need cooling or heating the most.
❄️ Will a 28,000 BTU mini split provide heat during freezing winters? ›
Yes. Modern ductless mini splits act as two-way heat pumps. Not only do they cool your home in summer, but they reverse the process to draw ambient heat from the outside air during winter. Look for "Hyper-Heat" or "Cold Climate" rated models if you live in northern regions; these units retain up to 100% of their heating capacity in temperatures as low as -13°F to -22°F.
⚡ What electrical circuit is required for installation? ›
A 28k BTU outdoor compressor requires a dedicated 208–230V electrical circuit. Depending on the exact model's Minimum Circuit Ampacity (MCA), you will generally need a 25 to 30 Amp two-pole breaker and #10 AWG copper wire. Furthermore, standard electrical code requires a local disconnect box mounted on the exterior wall near the unit.
🛠️ Can I DIY the installation of a 28k BTU mini split? ›
While "DIY-friendly" systems do exist, a standard 28,000 BTU system requires professional installation. Connecting the copper refrigerant line sets requires specialized tools to vacuum the lines, test for leaks, and balance the refrigerant charge. Furthermore, most premium manufacturers require installation by a state-certified HVAC technician in order to validate your 5 to 10-year warranty.
🔧 What are the best practices for mounting the outdoor unit? ›
For optimal performance and longevity, mount the outdoor condenser completely level on a heavy-duty wall bracket or a raised concrete/composite ground pad to keep it above average snowfall levels. Ensure at least 20-24 inches of clearance around the unit for proper airflow. Refrigerant line sets should be carefully routed, heavily insulated against UV damage, and covered with PVC line-hide covers for a clean aesthetic.
💡 Pro Tip: Ensure you register your product warranty immediately after installation. Purchase your reliable, high-efficiency system at MiniSplitsForLess.com today! ↑ Back to top

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