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Experience superior comfort and energy savings with ductless mini splits, featuring industry-leading technology. These AHRI-certified mini splits use inverter technology and variable-speed DC inverter operation for optimal efficiency and quiet operation, with exceptional SEER2 performance that exceeds standard SEER ratings. Whether you prefer a wall mount, ducted, floor or ceiling-cassette design, these mini split air conditioner units give you zone control for precise heating and cooling in your home.
Key features:
Control your mini split with Alexa or Google Assistant, or remotely with an Android or iOS phone via Wi-Fi. Set schedules and control multiple rooms from anywhere — change your temperature settings from the office or while traveling, as long as you have an internet connection.
Our efficient mini splits are Energy-Star certified. With ultra-efficient ductless air conditioners you can expect to save upwards of 50–60% on your energy bills yearly — a great system for heating and cooling a home or business while minimizing long-term energy costs.
Our Ultra-DC-Inverter technology lets these systems provide cooling and heating at up to −13°F/−22°F with up to 100% efficiency, so hyper-rated models can serve as your primary heat source all year round — even in the coldest climates. The hyper feature is available on most of our mini splits.
Our ductless mini splits include self-cleaning, leak detection and self-diagnostics — all there to keep the system running properly for years. Enjoy peace of mind knowing your mini split will warn you of any equipment problems.
The DC Ultra inverter compressor delivers a superb reduction in energy consumption, making these some of the most efficient systems with DC-inverter technology — it's what pushes mini splits to high SEER2 certifications while minimizing your energy costs.
What BTU/ton for your area?
| Square footage | BTU (ton) |
|---|---|
| 100–200 sq ft | 6,000 BTU | ½ ton |
| 150–400 sq ft | 9,000 BTU | ¾ ton |
| 400–600 sq ft | 12,000 BTU | 1 ton |
| 600–800 sq ft | 18,000 BTU | 1.5 ton |
| 800–1,200 sq ft | 24,000 BTU | 2 ton |
| 1,200–1,500 sq ft | 30,000 BTU | 2.5 ton |
| 1,500–1,800 sq ft | 36,000 BTU | 3 ton |
| 1,800–2,000 sq ft | 48,000 BTU | 4 ton |
| 2,000–2,500 sq ft | 60,000 BTU | 5 ton |
Use this BTU/ton size chart to size your mini split indoor or outdoor unit.
If you are looking for mini splits, most sellers cover the basics: an outdoor compressor connected to indoor units via small refrigerant lines, high energy efficiency without duct loss, and separate room temperatures — plus the simple setup needing just a small 3-inch wall opening. All true, but there are critical technical details and long-term ownership realities almost nobody tells you before you buy.
Beyond washing your mesh air filters every few weeks, mini splits need a deep chemical cleaning of the internal blower wheel and evaporator coil every 1–2 years. Because the heads recirculate the air in your living space, neglected moisture can breed toxic black mold inside the barrel fan. And while most guides cover summer condensation draining from the indoor head, heat pumps reverse in winter: during freezing weather the outdoor unit sheds gallons of water in defrost cycles — without a base pan heater or proper drainage that runoff freezes solid, destroying fan blades and icing the compressor base.
Finally, budget for electrical and warranty requirements upfront. A multi-zone system frequently requires upgrading your home's main electrical panel — often from 100-amp to 200-amp service — plus dedicated 208/230V double-pole breakers. Most importantly, beware of online DIY claims: almost every major manufacturer explicitly voids your multi-year parts and compressor warranty unless a licensed HVAC technician performs the final nitrogen pressure test, line evacuation, and refrigerant commissioning.
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A ductless mini split is a heating and cooling system that connects an outdoor compressor to one or more indoor air handlers via small refrigerant lines, providing targeted climate control without traditional ductwork.
Yes! We offer fast, reliable free shipping nationwide on all qualifying mini split air conditioner systems and heat pump orders, with most shipments leaving our warehouse the next business day.
Absolutely. All equipment distributed through MiniSplit Warehouse meets strict industry efficiency guidelines, featuring advanced DC inverter technology and high SEER2 ratings to maximize energy savings.
Sizing depends primarily on your room's square footage. As a general rule, a 9,000 BTU system covers up to 400 sq. ft., while larger spaces or multi-zone layouts require higher tonnages. Check our sizing guides on individual category pages for exact calculations.
It depends on the model. We offer specialized DIY-friendly kits with pre-charged quick-connect line sets for straightforward setups, as well as standard units that benefit from professional HVAC installation to ensure compliance with local codes.
With regular maintenance - keeping filters clean and having the system serviced periodically - quality split heat pump systems typically last 15 to 20 years.