Introducing the AirCon 9000 Btu 220V Ductless Mini Split Heat Pump AC Serene Series! This powerhouse unit is designed to keep you comfortable year-round, heating down to a chilly -4 F and cooling down to 32 F. The package includes a sleek indoor wall mount unit with a remote and an outdoor unit, complete with a 15' install kit. Featuring a GMCC Toshiba compressor, this mini split boasts impressive efficiency with a 10.9 EER and 8 HSPF ratings. Enjoy smart features like auto restart, vertical auto swing, sleep mode, and a 24-hour timer. Plus, with a 7-year compressor and 5-year parts warranty, you can rest easy knowing you're covered. Perfect for colder climates and residential applications, the Serene Series is your go-to solution for reliable heating and cooling. Don't forget to register online for your warranty and check out related accessories below!
The ALL NEW Serene Series by AirCon. AirCon has been in the industry for over 10 Years producing some of the most reliable Ductless Mini-Split Systems on the market. This Series is one of the most efficient models AirCon has produced to date, and now they offer lower ambient operation. Great for colder climates, server rooms, and any residential application.
* Efficient Inverter Compressor * AHRI Certified * 2 Way Draining * LED Dimmer & Display Panel * Back Lighting Remote Control * PTC Belt Heater (Outdoor Unit) * Louver Position Memory * Quiet Mode * 24hr Timer * Auto Clean * Intelligent Auto Defrost * Cold Air Prevention (when in heat mode, it will pre-heat before starting) * Self Diagnosis * Auto Restart * Lock Function (on remote) * 7 Indoor Fan Speeds
I didn't buy this 9K BTU unit for a standard bedroom; I bought it to save my tiny, historically impossible-to-cool upstairs reading nook. At just under 300 square feet, the space used to cook in summer and freeze in winter. Enter the Air-Con Serene. The installation was tight, but the unitβs small indoor footprint and easy-to-run lineset were a lifesaver. This unit earns its name immediately. When I flip it on, the change is instant: silence and temperature stability. I genuinely don't hear a thing, even when it's battling a mid-July heatwave. It's truly "serene." It delivers robust, year-round climate control and energy savings without ever demanding your attention. A stellar performer for any zone control necessity.
my experience with the Aircon 9000 BTU 16 SEER unit has been extremely positive
John Garst · April 2025
I was initially a bit anxious about setting up a ductless unit, but the process turned out to be surprisingly straightforward. I opted for professional installation since I wanted to ensure that every detailβespecially the wiring and mountingβwas handled correctly. The technicians were punctual and thorough, explaining the installation steps and ensuring that the unit was properly sealed and set up for maximum efficiency.
After running the unit for a few weeks, I noticed a marked decrease in my energy bills compared to older systems in my home. The control panel is intuitive and user-friendly.
Overall, a reliable and efficient choice
Franklin Bennett · April 2025
Look, I'm not gonna lie, I was skeptical about going ductless. But, the old window unit was dying, and this AirCon thing popped up. Figured, why not? Installation wasn't a nightmare, which is a win. It's definitely quieter than that rattling dinosaur I had before. Cooling? Yeah, it cools. And the heat? It's kept the chill off so far. It's not blowing my mind, but it's doing its job, and my electric bill hasn't skyrocketed. It's just...solid. Like, a reliable, 'gets the job done' kind of solid. No frills, no fuss, just cold (or warm) air when I need it.
AirCon 'Serene' mini-split
Andy Bowen Kennett · April 2025
This thing is whisper-quiet. I mean, really quiet. I can finally sleep soundly without the constant hum of a noisy AC unit. The 9000 BTU capacity is perfect for my bedroom, quickly cooling down the space on those sweltering nights. Mini Split Warehouse was great. They answered all my questions promptly and provided helpful information. The shipping was fast, and the unit arrived in perfect condition.
it does exactly what I needed β provides quiet, efficient cooling comfort.
Andy Fugate · April 2025
The Aircon Serene arrived and was straightforward to install. Unboxing the Aircon Serene was easy. Installation was manageable. The initial cool blast was a welcome relief. It runs quietly and seems energy-efficient. Haven't tested the heating yet. The remote is easy to use. Overall, it effectively and quietly cools the space, and I'm happy with the purchase.
I didn't buy this 9K BTU unit for a standard bedroom; I bought it to save my tiny, historically impossible-to-cool upstairs reading nook. At just under 300 square feet, the space used to cook in summer and freeze in winter. Enter the Air-Con Serene. The installation was tight, but the unitβs small indoor footprint and easy-to-run lineset were a lifesaver. This unit earns its name immediately. When I flip it on, the change is instant: silence and temperature stability. I genuinely don't hear a thing, even when it's battling a mid-July heatwave. It's truly "serene." It delivers robust, year-round climate control and energy savings without ever demanding your attention. A stellar performer for any zone control necessity.
Randy Karas · 2025-12-10
my experience with the Aircon 9000 BTU 16 SEER unit has been extremely positive
I was initially a bit anxious about setting up a ductless unit, but the process turned out to be surprisingly straightforward. I opted for professional installation since I wanted to ensure that every detailβespecially the wiring and mountingβwas handled correctly. The technicians were punctual and thorough, explaining the installation steps and ensuring that the unit was properly sealed and set up for maximum efficiency.
After running the unit for a few weeks, I noticed a marked decrease in my energy bills compared to older systems in my home. The control panel is intuitive and user-friendly.
John Garst · 2025-04-10
Overall, a reliable and efficient choice
Look, I'm not gonna lie, I was skeptical about going ductless. But, the old window unit was dying, and this AirCon thing popped up. Figured, why not? Installation wasn't a nightmare, which is a win. It's definitely quieter than that rattling dinosaur I had before. Cooling? Yeah, it cools. And the heat? It's kept the chill off so far. It's not blowing my mind, but it's doing its job, and my electric bill hasn't skyrocketed. It's just...solid. Like, a reliable, 'gets the job done' kind of solid. No frills, no fuss, just cold (or warm) air when I need it.
Franklin Bennett · 2025-04-16
AirCon 'Serene' mini-split
This thing is whisper-quiet. I mean, really quiet. I can finally sleep soundly without the constant hum of a noisy AC unit. The 9000 BTU capacity is perfect for my bedroom, quickly cooling down the space on those sweltering nights. Mini Split Warehouse was great. They answered all my questions promptly and provided helpful information. The shipping was fast, and the unit arrived in perfect condition.
Andy Bowen Kennett · 2025-04-01
it does exactly what I needed β provides quiet, efficient cooling comfort.
The Aircon Serene arrived and was straightforward to install. Unboxing the Aircon Serene was easy. Installation was manageable. The initial cool blast was a welcome relief. It runs quietly and seems energy-efficient. Haven't tested the heating yet. The remote is easy to use. Overall, it effectively and quietly cools the space, and I'm happy with the purchase.
Andy Fugate · 2025-04-21
Why Ductless Mini Splits
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 split air conditioner units give you zone control for precise heating and cooling in your home.
Key features:
Single or multi-zone capability for customized comfort
High-efficiency ductless design minimizes energy loss
Quiet operation for a peaceful living environment
Improved air quality with advanced filtration options
Flexible installation for any home layout
Manufacturer warranty included
Works With AlexaβΎ
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.
Energy-Star CertifiedβΎ
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.
Heating and Cooling (to -13F/-22F)βΎ
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.
Auto Leak Detection and DiagnosisβΎ
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.
DC ULTRA Inverter TechnologyβΎ
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.
Air Conditioner Size ChartβΎ
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.
What Nobody Tells You Before You BuyβΎ
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.
Mini Split Warehouse offers a wide selection of ductless air conditioners and split heat pumps, providing free shipping nationwide.
