ShipACUnit is your trusted source for high-efficiency mini split systems and ductless air conditioners. Whether you need a single-zone cooling solution for a home office or a multi-zone system to climate-control your entire home, we carry top-rated inverter mini splits from leading manufacturers. Our ductless mini split AC units deliver whisper-quiet comfort, superior energy efficiency, and year-round heating and cooling — all without the need for bulky ductwork.
Every mini split system we sell ships free to the 48 contiguous U.S. states and comes backed by manufacturer warranties plus optional extended protection plans of up to 10 years. Our team is available by phone or email to help you choose the right BTU capacity, understand SEER ratings, and plan your installation. From first-time buyers to licensed HVAC contractors, ShipACUnit makes it easy to get premium equipment at competitive prices.
Browse our full catalog below organized by BTU size, system type, and accessories. Not sure where to start? Check out our buying guides or contact our support team for personalized recommendations.
Ideal for small bedrooms, home offices, and server rooms up to 350 square feet. A 9,000 BTU mini split delivers efficient cooling and heating without oversizing the space, keeping energy bills low while maintaining precise temperature control.
The most popular residential size, a 12,000 BTU mini split comfortably conditions rooms between 350 and 550 square feet — perfect for master bedrooms, living rooms, and studio apartments. Many 12K models feature inverter compressors rated at 20 SEER or higher.
Designed for larger living spaces, open-concept kitchens, and commercial offices up to 800 square feet. An 18,000 BTU ductless mini split provides powerful airflow while maintaining the energy savings that inverter technology is known for.
Our highest-capacity single-zone units cover areas up to 1,200 square feet. A 24,000 BTU mini split is a strong choice for great rooms, garages, workshops, and light commercial spaces that need reliable year-round climate control.
Unlike cooling-only air conditioners, heat pump mini splits provide both heating and cooling from a single system. During warmer months the unit removes heat from indoor air and transfers it outside. In winter it reverses the cycle, extracting heat energy from outdoor air and moving it indoors — even in temperatures as low as 5 °F with select hyper-heat models.
Inverter-driven compressors adjust speed continuously rather than cycling on and off, which dramatically improves efficiency and reduces noise. Most of our mini split systems feature inverter technology and achieve SEER ratings between 17 and 25, translating to meaningful savings on monthly energy bills compared to conventional HVAC equipment.
Complete your mini split installation with professional-grade line sets, mounting brackets, condensate pumps, wall covers, and wiring kits. We stock pre-charged copper line sets in common lengths (16 ft, 25 ft, 50 ft) as well as universal mounting hardware compatible with most brands. All accessories ship free alongside your mini split order.
ShipACUnit offers free ground shipping on every order to the 48 contiguous United States. Most items ship within one to two business days and arrive in four to nine business days via freight or parcel carrier. We do not currently ship to Alaska, Hawaii, or international destinations. We accept returns within 30 days of delivery for unused, unopened equipment. Every product includes a manufacturer warranty, and optional extended protection plans are available at checkout for added peace of mind.
The right size depends on the square footage of the room you want to condition. As a general rule, you need roughly 20 BTU per square foot. A 300-square-foot bedroom typically needs a 9,000 BTU unit, while a 500-square-foot living room is best served by a 12,000 BTU model. For larger or multi-room spaces, consider an 18,000 or 24,000 BTU system, or a multi-zone configuration.
Yes — most modern mini splits are heat pump systems, meaning they provide both cooling in summer and heating in winter. They work by reversing the refrigerant cycle to move heat in or out of your home. Some hyper-heat models can operate efficiently in outdoor temperatures as low as 5 °F, making them a viable primary heating source in many climates.
All orders ship free within the 48 contiguous United States. We do not ship to Alaska, Hawaii, or international addresses. Smaller items like line sets and accessories ship via standard parcel carriers, while larger units ship via freight. Most orders arrive within four to nine business days. You will receive tracking information by email as soon as your order ships, and our support team is available to help coordinate delivery.