COSTWAY 12000BTU Mini Split Air Conditioner& Heater | 20 SEER2 115V Wall-Mounted Ductless AC Cools up to 750 Sq. Ft, Energy Efficient Inverter AC with Heat Pump (Blast Series)
Condition: New
Buy Now, Pay Later
As low as
/ mo
Learn more
- – Up to 36-month term if approved
- – No impact on credit to apply
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Selected Option
Free shipping on this product
30-day returns
Learn more
30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
In Stock.
Arrives
Aug 6 – Aug 10
Recently Viewed
Style: 12000BTU, 115V, 20 SEER
Features
- [Energy Efficient Cooling & Heating:]Equipped with a high power compressor and 1 ton heat pump, this AHRI Certified pre-charged ac unit allows you to enjoy the convenience of cooling in summer and warming in winter. Besides, with an innovative inverter technology, the air conditioner changes the power supply frequency without frequently turning the compressor on and off, so as to reduce power consumption and prolong the service life of the equipment.
- [5 Modes for All-Year Comfort:]This 12000 BTU split-system AC unit has 5 working modes for you to choose from: auto, cool, dry, heat and fan mode. In addition, this split air conditioner also comes with 4 available fan speeds (low/medium/high/auto), sleep mode, ECO mode, iFEEL & turbo function to meet various needs.
- [Easy Control & Quiet Operation:]The handy remote control enables you to control this mini split AC unit from your comfortable bed or sofa conveniently. The smart 0.5-24 hour timer and low-noise operation ensure a peaceful sleep time. What's more, the display screen on the remote control will be turned off automatically when there is no operation within 10s, which will not disturb your sleep.
- [Self Cleaning & Auto Defrost:]Designed with a self-cleaning function at high temperature of 134.6F and a washable filter, this split air conditioner can automatically clean its interior and keep the air in your home fresh and clean. Moreover, the outdoor unit features an auto-defrost function to avoid damage and improve energy efficiency.
- COSTWAY's superior quality and design are backed by an industry-leading manufacturer's warranty. This warranty covers 5 years of parts replacement and 8 years of compressor coverage, ensuring customers can rely on our products for years to come. In addition to this, the installation of this equipment should be done only by a Licensed HVAC Installer.
Brand: COSTWAY
Capacity: 1 tons
Cooling Power: 12000 british thermal units
Special Feature: 4 Way Swing, Auto Clean, Dehumidifier, Dust Filter, Eco Mode, Energy Efficient, Fast Cooling, Heating & Cooling Function, Inverter Compressor, Turbo function, iFEEL See more
Product Dimensions: 9"D x 44.5"W x 13"H
Start year: 2010
Seasonal Energy Efficiency Ratio (SEER): 20
Color: White
Voltage: 115 volts_of_alternating_current
Noise Level: 23 db
Cooling Power: 12000 british thermal units
Additional Features: 4 Way Swing, Auto Clean, Dehumidifier, Dust Filter, Eco Mode, Energy Efficient, Fast Cooling, Heating & Cooling Function, Inverter Compressor, Turbo function, iFEEL
Color: White
Noise: 23 db
Refrigerant: R-32
Filter Type: washable
Inverter Type: Has Inverter
Installation Type: Split System
Compressor Type: Scroll
Air Conditioner Application: Cooling and Heating
Voltage: 115 volts_of_alternating_current
Power Source: Corded Electric
Wattage: 1970 watts
Seasonal Energy Efficiency Ratio (SEER): 20
Efficiency: SEER2 20.0, EER2 10
Annual Energy Consumption: 1970 watts
Air Flow Efficiency: 0.14 cubic_feet_per_minute_per_watt
Capacity: 1 tons
Floor Area: 750 square_feet
Form Factor: Mini-Split
Brand Name: COSTWAY
Start Year: 2010
Model Name: Mini split
Model Number: 10153-CYJV
Included Components: Mini split
Manufacturer: COSTWAY
Item Dimensions D x W x H: 9"D x 44.5"W x 13"H
Item Weight: 68 pounds
Window Opening Maximum Width: 29 inches
Window Opening Minimum Height: 21 inches
Window Opening Minimum Width: 29 inches
Window Opening Maximum Height: 21 inches
Control Method: Remote
Controller Type: Remote Control
Warranty Type: Lifetime
BEE Star Rating: 5 Star
Heating Capacity: 12300 BTU
Number of Heating Elements: 1
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Aug 6 – Aug 10
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- Zip Pay in 4
- Financing through Apple Pay
- Financing through Google Pay
Learn more about financing & leasing here.
Similar Products
![LG 10000 BTU Window Air Conditioners [2023] Remote Control WiFi App Ultra-Quiet Washable Filter Cools 450Sq.Ft for Medium & Large Room AC Unit air conditioner Easy Install White LW1017ERSM1](https://m.media-amazon.com/images/I/71K8w1OAWBL._AC_US500_.jpg)
Top Amazon Reviews
🚀 Abunda's Overview
This is our summary and key points to consider based on customer reviews.
Customers have highly rated this air conditioner, frequently praising its effectiveness in cooling and heating. They report that it is relatively easy to install. Some users did mention issues with missing components and short lengths of tubing and exterior electrical wiring. But overall, the unit appears to function well and provides comfort at a significantly lower cost than hiring professionals.
Pros
- 👍 Excellent Cooling and Heating Performance
- 👍 Easy to Install
- 👍 Quiet Operation
- 👍 Cost-Effective
Cons
- 👎 Some Units Missing Components
- 👎 Short Length of Tubing and Electrical Connection
- 👎 Limited Controls without the Remote
Should I Buy It?
Yes, based on the largely positive reviews, it would seem this air conditioner is a sound investment. It effectively regulates temperature without a substantial noise presence. Despite some challenges with installation due to missing components or short lengths, its effective performance and cost savings make it a worthy purchase.
Style: 12000BTU, 115V, 20 SEER
After I finished installing and running it, I must say that I'm very satisfied with the purchase and the quality and results achieved from this item. Using only 120 volts the system runs nearly silently, while the amount of air discharged by the vent is very significant. It took watching a few different videos to fully comprehend the task at hand, but I took my time and went step by step, making one significant exception that I thought could be helpful in colder months, so I routed the condensate drain line on the inside of our garage, and at the bottom I coupled it with some CPVC parts and ran it through the exterior wall so the drain is outside. I did this because in my experience, drain lines can freeze up solid in very cold temps, and shut down a system.....it's happened to me more than once. This way the drain is only really exposed just a few inches outside the fully insulated exterior wall, and should be able to resist freezing.......we'll see how that works out. I used a solid stainless steel support bracket which was tricky to install, since the side to side dimension is inflexible and related to the width between the legs of the outside unit with a very small margin of error allowed. It worked out fine and I was able to give it 10 inches of air space in the back to the wall, enough for proper efficiency of the unit, and also to provide a hidden "alcove" for the coil of lineset that I left intact as it came from the factory. It looks fine, especially since I ordered a "cover kit" for the exterior line set for a neater appearance. I also ordered a sleeve through the wall which I cut to length and caulked in place prior to passing the line set and communication wire through. (As I mentioned, I did not include the drain hose in that bundle) The most apprehensive part was the installation of a new 20 amp circuit at the panel box, which was quite easy after I digested the videos online that clearly depict a safe method of doing that. Using 12-2 copper wire, I fed the circuit partly through the wall, then out and down the inner wall surface before exiting outside to a non-fused quick-connect box that I picked up at Home Depot. The final challenge was to acquire a vacuum pump and manifold gauge set for just over $100.00 to fully evacuate the low pressure side to vent any moisture or unwanted gases, prior to firing up the system. It allowed for a one hour leak-check after shutting the valve at the manifold and turning off the pump after it was given 25 minutes to do it's thing. I feel that I learned quite a bit about some tools and techniques that I was unfamiliar with, but was willing to digest and understand through careful selection of "how-to" videos readily available online. Installed yesterday, it runs great and I love the way it silently moves the air flow up and down as well as from side to side with motorized vanes in the blower compartment. Finally, I can work in my fully insulated garage in comfort year round. I hope the heating is adequate, but in the last year, I found a single small space heater was sufficient to raise the temperature in my garage by enough degrees to make it warm enough to work in comfortably, so if the Split unit isn't very good at heating, as I suspect it will be, I can easily supplement the warming by a simple space heater to easily make it comfortable in winter. I would add that build quality was very good, and was surprised by the amount of pressure released from the smaller high pressure copper line tube when I readied it for connecting with the longer line set to take the line down the exterior to the condenser unit. That indicated that the interior unit's plumbing was air tight from manufacture to my installation, which shows the build quality of that piece. Similarly, the charged condenser was also airtight and with simply using hand wrenching without torque-indicator tools, the system proved easy to connect and insure proper leak free system. I would say that the only possible addition to the system that I would recommend would be to have a simple "on-board" control pad at the inside unit as a failsafe if the remote failed to work properly. But the remote works perfectly so far, so maybe that would just be a waste of resources and just raise the price. For clarity, my unit offered 12,000 BTU's and runs on a 120 Volt 20 Amp circuit. I spent about 595.00 on the Split A/C unit (incl. shipping), and 36.00 on the triangular stainless support bracket, 33.00 on the line cover kit, 23.00 on the thru wall sleeve kit, 10.00 on a 2.5" hole saw, 54.00 for the manifold gauge set, 55.00 on the vacuum pump, for a total of 806.00 (not incl sales tax)......I wasn't thrilled that shipping for the Costway unit was 99.00, but I guess it's a fairly large and somewhat heavy item to ship. (came in two pieces over 2 days apart) So, that's the story, and I'm 'stickin' to it', as they say.
...
show more
Reviewed in the United States on August 10, 2025 by Paul R DesRoches
Style: 12000BTU, 115V, 20 SEER
This thing is awesome. Unbelievably quiet, I had to walk right up to it to verify it was running. I got it installed in the spring and we had some chilly days yet. The heating function worked great. This will take a nice load off my propane usage. Better yet, we're rolling through our second big heatwave. This unit cools the cabin down quickly and keeps it cool. It has also been very humid and this has pulled the humidity out of the cabin no problem. Cool and dry, it's perfect. Installation is not hard but the manual isn't real clear in some areas. I'd watch some YouTube videos or find someone who has done a mini split before to make sure you get it done right. It wasn't hard though. 5 stars easily.
...
show more
Reviewed in the United States on July 27, 2026 by pgdion
Style: 12000BTU, 115V, 20 SEER
Installed for the last 3 months. 12,000BTU 120v version. Has tons of heating capacity down to 37 degrees and then still heats down to 3 degrees F in Ohio able to keep two rooms at 70 degrees in a 100 year old house right now at night. That’s the max it can do in this extreme cold. But that’s plenty. Whisper quiet. Great value. The install matters the most. Must vacuum down the lines. Tons of heating capacity down capacity above 37 but diminishes under that yet still does heat. Cooling power is great. You can’t set it any lower than 60 degrees if you want to use it for keeping things from barely freezing. Good overall build and design. Can’t really beat it for the price. Pre charged. Buy $200 in tools and watch YouTube videos and do it yourself. No it’s not as good as a Mitsubishi hyper heat but it’s also 75% cheaper. Nothing arrived damaged or missing. The manual is worthless for installing. It’s generic. Use YouTube. Not good for those who want precise temp control. This fluctuates between 3 degrees of the set point. I didn’t get the WiFi version. This doesn’t really ramp up or down in small intervals. 100%. It works in steps like off or 25%-60%-100% and you cannot dictate what logic it uses for output. You can only set the fan speed. Mode. And temp. It decides the rest. For this price you simply can’t beat it. Even if it dies in a few years. Still a deal. Update: 9 months in I had a support issue and Costway mailed me a part ASAP and sent an instruction video quickly. 10/10 customer service. Ended up being my a small mistake on MY install and not their product at all! Fixed and away we went! Mini split has been cranking away at 100% all summer in 100 degree heat flawlessly with no break.
...
show more
Reviewed in the United States on December 15, 2025 by CincyAmznMan
Style: 12000BTU, 115V, 20 SEER
Good mini split. The instructions are not good. Youtube saved me. In fact, the Costway web site gives incorrect wiring instructions, showing a red wire where the black wire should be on the inside unit. But once you figure it out, the mini split runs quietly and super COLD!!!!! It is 100 degrees here outside, and it's a balmy 71 in the house. IT was actually TOO COLD and I raised the temp. Awesome and SO QUIET - even the outside unit is quiet. Very satisfied with the unit. I used Nylog on the flare connections - extra insurance.
...
show more
Reviewed in the United States on June 16, 2026 by Real Person
Style: 12000BTU, 115V, 20 SEER
It's a great unit. I was extremely surprised by how silent it runs. Remote is quick to adjust temperature and nice they include batteries for remote. I had plenty of lineset and wire for my area I wanted it. This is installed in my enclosed trailer shop build running off a pure sine wave inverter and lithium batteries. Luckily I have a friend with all the hvac tools so install was a breeze. We had to cut the lineset by about 2-3.5 feet and reflare the ends to make it fit the way we wanted which was easy. Vaccum and nitrogen test went great. We had a small nitrogen leak but realized we over tightened the ends. Loosened them up and all good. We had to go through some metal plate and that cut up the insulation so I had to buy some more and reinsulate but that was easy. The fan clicks off for a while periodically when temp is reached but the inside unit is still pumping cool air. It made my shop a wonderful place to be even in 85 degree outside weather. The only reason I knocked off a star is the remote information is lacking. I still don't understand what the auto mode does. You can't set a temp in auto and can't use the temperature sensor on the remote in that mode. So I have just left it in cool but then you cant adjust fan speed in that mode which is odd. I may have to call company and ask because it makes no sense. But it does cool and I turned it on heat one night and I was sweating profusely after a few minutes. So that works well! I wish I would've bought a wifi unit but this does work very well. Well worth the price!
...
show more
Reviewed in the United States on September 5, 2025 by FORCEGC
Style: 12000BTU, 115V, 20 SEER
The only good thing about this unit is it's ac side in the summer months that part works amazing. I paid to have it professionally installed by a licensed HVAC to make sure not to void any warranty, and this is advertised as a mini split heat pump that can function down to just below 20° outside and says it's rated for 750sqft. Well it's it's the middle of winter now and 27° degrees outside the mini split can't keep and my 500sqft mini house warm. I keep waking up around 1-2 am freezing my butt off when I have it set to 78° on the thermostat but it keeps getting below 58°. Now I'm out out of money on a unit that's only good for summer and on the contactor that I had to pay to drill a few holes in my house to hook it all up. Now I'll have to pay to have the unit installed because it's illegal for me to discharge the fluid. And on top of that ITS THE MIDDLE OF WINTER and now I'm having to deal with this because of fale aderveriment and false specification on the unit I have to figure a new way to heat my home. This is a honest review after months of summer and winter use. I wouldn't recommend buying this unit unless you live in a state that stays.farily warm!!!!
...
show more
Reviewed in the United States on February 13, 2026 by There wasn't even enough in the bottle to treat a twin bed
Style: 12000BTU, 115V, 20 SEER
So far (It's only been running a couple days) this thing is awesome! I bought the 12k btu 115v unit for my garage, which is concrete block, and uninsulated. I work on projects some summers and I die in the heat. I use a torpedo heater in winter, but I'm excited to try this for heat, but with no ceiling and open rafters, I may not get much, but that okay too. Install was a breeze with the right amount of videos (I over prepared) watched. I borrowed a vacuum pump from Autozone and used my own old R134a manifold set to vacuum it out, and it held the vacuum for one hour. I did purchase more UV resistant tape (I have the extra copper tubing coiled up horizontally under the unit which is mounted on a wall bracket), the tubing hider kit for the wall, a 3" carbide hole saw, and a 7/8" carbide bit for the electric run through the concrete wall. Install time and it was hot outside, really hot. But I worked slow and all my by myself. Drilled the holes, ran the electric. I did have someone help me mount the unit indoors as the line set is long and needed someone outside to guide it while I hung the unit indoors. The hardest part was probably coiling the extra line under the unit so I didn't cause an oil pool in the lines. Well it was 87* and about 50% humidity the day I turned it on. All the thermometers in my garage read 90 or greater. Within an hour it was 74* and dry and my garage, and it maintains that even if I briefly open the garage door (my only ingress/egress). Now projects out in the garage only require a tiny bit of planning to turn the unit on, and go out about an hour later. I usually use the timer function so I don't forget to turn it off. Yes, you will need some tools you may not have, yes, there are good videos to show you how to do it, but take your time, and it's a relatively easy install for any DIY person. Good luck!
...
show more
Reviewed in the United States on July 13, 2026 by kspraker
Style: 12000BTU, 115V, 20 SEER
This is a terrific unit. We purchased it to cool a large family room with approximate 550 sq. This room has windows all around that are hit with the afternoon sun, with no roof insulation and high ceilings. The unit cools it perfectly and then some. Highly recommended.
Reviewed in the United States on July 7, 2026 by Amazon Customer