6 Best Mini-Split Air Conditioners Under $500 in 2026
We compared six budget single-zone mini split heat pumps under $500 on room coverage, efficiency, heating, smart features, noise and warranty.
By Daniel Brooks
Updated October 19, 2026
A complete ductless heat pump for one room no longer has to cost a fortune. Several brands now sell 1 ton and 0.75 ton systems with inverter compressors, 115V power and an installation kit for well under what a single premium system costs. Our list of the best mini-split air conditioners under $500 compares six single-zone heat pumps on room coverage, efficiency, heating, smart features, noise and warranty. To browse every model we cover, visit our Single-Zone Mini-Split Air Conditioners page.
Budget systems save money on the box, not on the install. Every system here still needs a dedicated circuit and, in most cases, a technician to connect and vacuum the line set, so factor that into your total cost.
All Products Compared
| Product | Best For | Room Size | Efficiency | Wi-Fi | Notable Feature |
|---|---|---|---|---|---|
| Mountman 12000 BTU Mini Split AC/Heating System | Overall | 600 sq ft | 19 SEER2 | No | 4.5 average, 26 dB sleep |
| Rellytech 12000 BTU Mini Split AC/Heating System | Value | 750 sq. ft | 19 SEER2, HSPF2 8.5 | No | 12,500 BTU heating |
| YITAHOME 12000 BTU Mini Split AC/Heating System | Smart control | 750 square feet | 20 SEER2 | Yes, Alexa | HEALTH mode |
| COSTWAY 12000 BTU Mini Split Air Conditioner & Heater | Long warranty | Large rooms | Inverter | No | 8 year compressor coverage |
| ROVSUN 9000 BTU WiFi Mini Split Air Conditioner & Heater | Small rooms | 400 sq ft | 19 SEER | Yes, Alexa, Google | 10,000 BTU/h heating |
| Albott 12,000 BTU Mini Split Air Conditioner and Heater | Quiet operation | 750 sq. ft | SEER2 18 | Yes | Below 29dB |
| Award | Product | WikiCooling Score About WikiCooling ScoreThe WikiCooling Score is our own rating from 0 to 10, based on the criteria described on our How We Review page. It reflects research, not laboratory measurement, and is never influenced by manufacturers, retailers, or affiliate commissions. Learn more › | |
|---|---|---|---|
| Best Overall |
Mountman 12000 BTU Mini Split AC/Heating System
|
8.6/10 | Buy |
| Best Budget |
Rellytech 12000 BTU Mini Split AC/Heating System
|
8.4/10 | Buy |
YITAHOME 12000 BTU Mini Split AC/Heating System
|
7.8/10 | Buy | |
| Best Premium |
COSTWAY 12000 BTU Mini Split Air Conditioner
|
8.4/10 | Buy |
ROVSUN 9000 BTU WiFi Mini Split Air Conditioner
|
8.1/10 | Buy | |
Albott 12,000 BTU Mini Split Air Conditioner
|
8.0/10 | Buy |
Mountman 12000 BTU Mini Split AC/Heating System
Product description Previous page Next page Previous page Next page Tip: Before purchasing, be sure to check the voltage compatibility of this mini-split air conditioner with your home's electrical system. Note: This split ac unit comes in two separate boxes, so delivery times may vary From the brand All-Season Perfect Cool/Warm Enjoy Consistent Year-Round Comfort with Our Split AC！ Mini Split AC/Heating System Visit the Store Space Heaters Visit the Store Whole House Humidifier Visit the Store Commercial Ice Maker Visit the Store What makes our products unique? Our continuous efforts are focused on advancing in four aspects: heat output, style, quality, and safety. Our products come with a 1-year protection. How do we ensure the quality of our products? We have a rigorous quality control process in place that includes evaluation at every stage of production. How do we safeguard the rights and interests of our customers? We have a professional and passionate 24/7 hour team. We want our customers to feel at ease when using our products.
Rellytech 12000 BTU Mini Split AC/Heating System
Product description Previous page Next page What is the coverage area for the 9000 BTU, 12,000 BTU, and 18,000 BTU models? The 9000 BTU model cools/heats up to 450 sq. ft, while the 12,000 BTU model up to 750 sq. ft, ideal for bedrooms or offices. The 18,000 BTU model covers up to 1,250 sq. ft, suitable for larger spaces like open-plan living areas or commercial rooms. What is the operating temperature range for the outdoor unit? The outdoor unit is engineered to perform reliably within an ambiernt temperature range of 19°F to 122°F(-7°C to 50°C). Please note that if the outdoor temperature drops below or exceeds this range, the system nmay decrease to protect the compressor. How long does it take for a package to be delivered？ Your order will be dispatched within 1-2 business days. Please note that the indoor and outdoor units may ship separately, resulting in varying arrival times. We appreciate your patience as both components are prioritized for prompt delivery. Does the mini split include installation components? Is professional installation required? Yes, the package includes the indoor unit, outdoor unit, installation kit with necessary hardware. While the kit simplifies setup, professional installation is recommended to ensure proper refrigerant handling and wall mounting. How do I clean and maintain my mini-split system? Clean the reusable filter regularly, check the condenser and evaporator assembly, and keep the area around the outdoor unit clean. From the brand Mini Split AC/Heating System To make every home feel quieter, safer, and more comfortable through every seasonTo become a trusted home-comfort brand that brings natural-feeling air and temperature solutions to everyday family lifeSmart & Convenient - App-Control Mini-Split Anytime, Anywhere. Comfort Where You Need It Most 20/21 SEER2 WiFi Smart Series 20000 BTU Dual Zone Mini Split R32 Mini Split AC System R454B Mini Split AC System 17 SEER2 And 19 SEER2 Series
YITAHOME 12000 BTU Mini Split AC/Heating System
Product description YITAHOME Wifi Enabled Ductless Mini Split AC/Heating System The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. YITAHOME mini split ac Previous page Next page 1 Inverter Compressor 2 4th Generation Controller 3 Auto Cleaning 4 Wagner Spray Coating 5 Better Performance Fast Cooling & Leak Prevention · High-temperature Resistant · Pure Breathing Previous page Next page Mini Split for Both Home and Bussiness, Bedroom, Garage, Living Room and Office Previous page Next page Local Fast Delivery with 2 Boxs May be Delivered in Batches Previous page Next page Product details may vary slightly with ongoing improvements. Can it be controlled with a smartphone? Yes. It can not only be remotely controlled via mobile phone, but also connected to Alexa for voice control, freeing your hands. Does it have a dehumidifier? Yes, dehumidification is one of its basic functions. What is its noise level? Its noise level ranges from 25 to 50 decibels in normal operation mode, and drops to 25 decibels in sleep mode. It is far quieter than window AC and portable air conditioners. Is it energy efficient? Yes, it is energy‑efficient. On one hand, the inverter compressor saves 50% more energy compared with traditional fixed‑speed compressors. On the other hand, its high SEER2 rating makes it more power‑saving than other models with lower SEER2 ratings. YITAHOME Mini Split AC/Heating System YITAHOME 12K Split AC Add to Cart YITAHOME 12K Split AC Add to Cart YITAHOME 18K Split AC Add to Cart YITAHOME 24K Split AC Add to Cart YITAHOME 12K Split AC Buying Options YITAHOME 9K Split AC Buying Options YITAHOME 12K Split AC Add to Cart Price $499.99$499.99 $498.99$498.99 $689.99$689.99 $959.99$959.99 , , $425.93$425.93 Cooling Capacity(BTU) 12000 12000 18000 24000 12000 9000 12000 Heating Capacity(BTU) 12000 12000 18000 24000 12000 9000 12000 Output Coverage(Sq.Ft) 750 750 1250 1500 750 450 750 SEER2 20 17 19 18.5 22 19 20 HSPF2 8.5 8.5 9 8.3 9 8.6 8.5 Heat Pump(Ton) 1 1 1.5 2 1 0.75 1 Dehumidifying(LBS/H) 2.2 2.2 3.5 4 2.2 2.2 2.2 Indoor Noise Level(dBa) 41 41 47 50 26 42 41 Control Method APP/Remote/Alexa&Google Home APP/Remote/Alexa&Google Home APP/Remote/Alexa&Google Home APP/Remote/Alexa&Google Home APP/Remote/Alexa&Google Home APP/Remote/Alexa&Google Home APP/Remote/Alexa&Google Home Voltage(V) 115 208-230 208-230 208-230 115 115 115 From the brand At YITAHOME, our story begins with a powerful principle - putting the customer at the center of everything we do. Through continuous innovation, we strive to meet and exceed our customers' expectations. We closely monitor climate change, energy efficiency, and environmental sustainability. Whether they’re used in homes, offices, or commercial spaces, YITAHOME air conditioners provide optimal air quality and temperature control for our customers. The Latest Model of Mini Spit Visit the Store Mini Split AC/Heating System Visit the Store Multi Zone Mini Split AC Visit the Store Mini Split AC/Heating System Visit the Store 20 SEER2 Pure Design Series
COSTWAY 12000 BTU Mini Split Air Conditioner
Product description Previous page Next page Previous page Next page From the brand COSTWAY Single Zone Mini Split Visit the Store COSTWAY Multi-Zone Mini Split Visit the Store COSTWAY Mini Split Line Set Visit the Store Central Air Conditioner Visit the Store
ROVSUN 9000 BTU WiFi Mini Split Air Conditioner
Product description The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. aplus content video Previous page Next page SPECIFICATION 9000 BTU Mini Split AC Add to Cart 12000 BTU Mini Split AC Add to Cart 12000 BTU Mini Split AC Add to Cart 18000 BTU Mini Split AC Add to Cart 24000 BTU Mini Split AC Buying Options 9000 BTU Mini Split AC Add to Cart 12000 BTU Mini Split AC Add to Cart Customer Reviews 4.2 out of 5 stars 467 4.4 out of 5 stars 285 4.3 out of 5 stars 138 4.4 out of 5 stars 124 4.3 out of 5 stars 138 4.1 out of 5 stars 74 4.5 out of 5 stars 115 Price $399.99$399.99 $499.99$499.99 $499.99$499.99 $669.99$669.99 $1,139.99$1,139.99 $469.99$469.99 $529.99$529.99 Cooling Capacity (BTU/h) 9,000 BTU/h 12,000 BTU/h 12,000 BTU/h 18,000 BTU/h 24,000 BTU/h 9,000 BTU/h 12,000 BTU/h Heating Capacity (BTU/h) 10,000 BTU/h 12,000 BTU/h 12,000 BTU/h 18,000 BTU/h 24,000 BTU/h 10,000 BTU/h 12,000 BTU/h Indoor Unit Dims (WDH) 31.92''x7.99''x11.49'' 31.92''x7.99''x11.49'' 31.92''x7.99''x11.49'' 39.76''x8.66''x12.40'' 46.93''x10.23''x14.17'' 31.92''x7.99''x11.49'' 31.92''x7.99''x11.49'' Outdoor Unit Dims (WDH) 28.14''x11.42''x19.61'' 28.14''x11.42''x19.61'' 28.14''x11.42''x19.61'' 30.70''x13.74''x23.81'' 33.26''x14.96''x27.51'' 28.14'' x 11.42'' x 19.61'' 28.14'' x 11.42'' x 19.61'' Recommended Area 100-400 sq.ft. 350-550 sq.ft. 350-550 sq.ft. 750-1000 sq.ft. 1000-1500 sq.ft. 100-400 sq.ft. 350-550 sq.ft. Voltage 115V / 60Hz 115V / 60Hz 208~230V / 60Hz 208~230V / 60Hz 208~230V / 60Hz 115V / 60Hz 115V / 60Hz Noise Level (dBa) 28-42 (dBa) 28-45 (dBa) 28-45 (dBa) 32-49 (dBa) 36-52 (dBa) 28-42 (dBa) 28-45 (dBa) Weight (indoor / oudoor unit) 19.8lb / 51.8lb 19.8lb / 55.1lb 19.8lb / 55.1lb 27.6lb / 70.5lb 36.4lb / 88.2lb 19.8lb / 51.8lb 19.8lb / 55.1lb Line Set 16.4ft (1/4" & 3/8") 16.4ft (1/4" & 3/8") 16.4ft (1/4" & 3/8") 16.4ft (1/4" & 3/8") 16.4ft (1/4" & 1/2") 16.4ft (1/4" & 3/8") 16.4ft (1/4" & 3/8") SEER 20 20 20 20 20 20 20 Remote/APP/Voice Control ✔ ✔ ✔ ✔ ✔ ✔ ✔ From the brand Why choosing ROVSUN? √ Affordable and high-quality item with responsible and round after-sales service. √ Directly getting your goods from local warehouses in US, faster order for faster shipment. √ Professional household appliance solution provider for catering your demand accurately. √ Open-minded for any feedbacks for inspiring us to move forward to create a better purchasing experience. Comfortable life with ROVSUN Reliable life with ROVSUN Collectible life with ROVSUN Considerable life with ROVSUN Valuable life with ROVSUN Simple life with ROVSUN How did we get our start? The ROVSUN brand was established in 2017, it was committed to providing all families with affordable & high-quality appliance and kitchen supplies to create a simple, comfortable and healthy life What we sell? Household Appliance: air conditioner, electric heater, washing machine, clothes dryer, water distiller.. Kitchen Utensil: gas stove, propane grill, turkey fryer, french fry cutter .. Kitchen Appliance: ice maker, wine cooler, refrigerator, freezer.. Why do we love what we do? Now, ROVSUN provides products to thousands of families every year
Albott 12,000 BTU Mini Split Air Conditioner
This mini split system delivers 12,000 BTU of cooling and heating with an inverter compressor for efficient, quiet operation. It covers up to 750 square feet and includes built-in WiFi for app control. A solid budget-friendly choice for DIYers comfortable with pulling a vacuum on the refrigerant lines.
Pros
- Inverter compressor for efficient, quiet cooling and heating
- SEER2 18 energy efficiency rating
- 29 dB noise level for near-silent operation
- WiFi-enabled with app control
- Self-cleaning function and easy filter access
Cons
- Requires pulling a vacuum before use
- Power cord not included
- Outdoor unit may arrive damaged in shipping
Top 3 Mini-Split Air Conditioners Under $500 Reviewed
#1 Mountman 12000 BTU Mini Split AC/Heating System: Best Overall
Why We Picked It
The Mountman 12000 BTU has the best average rating among the budget systems here, 4.5 from 368 ratings shared across the Mountman series, and a feature list that rivals systems costing far more. It runs on 110/120V, lists 19 SEER2 and uses R32 refrigerant. The title rates it for up to 600 Sq.Ft, and the feature list for rooms up to 750 square feet.
It has cool, heat, dry and fan modes, 4 fan speeds, an ultra-quiet 26dB sleep mode, ECO mode with up to 30 percent energy savings, turbo boost, high-temperature self-clean and automatic defrost. The remote’s display shuts off after 10 seconds, so it will not disturb a dark bedroom.
Key Specifications
- Cooling Capacity: 12,000 BTU (1 ton)
- Room Size: Up to 600 sq ft
- Power: 110/120V
- Efficiency: 19 SEER2
- Noise Level: 26 dB in sleep mode
- Refrigerant: R32, pre-charged
| Pros | Cons |
|---|---|
|
|
Things to Consider
Mountman lists a 1-year protection. Check your home’s voltage before ordering, since Mountman sells this size in more than one voltage.
Best For
This system is best for budget buyers who want a quiet heat pump for a bedroom or office.
Check the current price and availability of the Mountman 12000 BTU Mini Split AC/Heating System on Amazon.
Read our full Mountman 12000 BTU Mini Split AC/Heating System review.
#2 Rellytech 12000 BTU Mini Split AC/Heating System: Best Value
Why We Picked It
The Rellytech 12000 BTU is the lowest-priced 1 ton system in this guide, and it still lists 19 SEER2 and HSPF2 8.5. It delivers 12,000 BTU of cooling and 12,500 BTU of heating, covering up to 750 sq. ft. by Rellytech’s rating, and runs on 115V. It has a 4.4 average from 385 ratings shared across the Rellytech series.
You get cooling, heating, fan and dry modes, ECO mode, 4 fan speeds, a 90 degree vertical swing, sleep mode, a 24-hour timer and an LED-off function. It is ETL and AHRI certified, and the package includes the indoor and outdoor units, a remote and an installation kit with 2 connecting pipes of 9.84ft and a 12.5ft communication cable.
Key Specifications
- Cooling Capacity: 12,000 BTU
- Heating Capacity: 12,500 BTU
- Room Size: Up to 750 sq ft
- Power: 115V, 1100 watts
- Efficiency: 19 SEER2, HSPF2 8.5
- Outdoor Range: 19F to 122F
| Pros | Cons |
|---|---|
|
|
Things to Consider
Rellytech lists an outdoor operating range of 19F to 122F, so it suits mild winters best. The short pipes mean the outdoor unit should sit close behind the indoor unit.
Best For
This system is best for the tightest budgets in mild climates where the condenser can sit right behind the wall unit.
Check the current price and availability of the Rellytech 12000 BTU Mini Split AC/Heating System on Amazon.
Read our full Rellytech 12000 BTU Mini Split AC/Heating System review.
#3 YITAHOME 12000 BTU Mini Split AC/Heating System: Best Smart Pick
Why We Picked It
The YITAHOME 12000 BTU is the budget pick for smart home users. It is WiFi-enabled and compatible with Alexa, runs on 115V and lists 20 SEER2. YITAHOME says it covers 750 square feet and works in outdoor temperatures from 5F to 118F, with automatic defrosting for steady heat.
It offers five modes, iFEEL, a 24-hour timer, sleep and energy-saving modes, self-diagnosis and self-cleaning, plus a HEALTH mode with negative ions, electrostatic dust removal and PM2.5 removal. YITAHOME lists noise below 41 decibels and 25 decibels in sleep mode. The warranty covers 5 years on parts and 7 on the compressor. It has a 4.0 average from 479 ratings.
Key Specifications
- Cooling Capacity: 12,000 BTU (1 ton)
- Room Size: Up to 750 sq ft
- Power: 115V, 1040 watts
- Efficiency: 20 SEER2
- Operating Range: 5F to 118F
- Controls: Remote, app, Alexa
| Pros | Cons |
|---|---|
|
|
Things to Consider
The installation kit excludes the shut-off valve housing and side protection grille, and the system may arrive in 2 separate packages.
Best For
This system is best for budget buyers who want app and voice control and a long compressor warranty.
Check the current price and availability of the YITAHOME 12000 BTU Mini Split AC/Heating System on Amazon.
Read our full YITAHOME 12000 BTU Mini Split AC/Heating System review.
Other Models Worth Considering
COSTWAY 12000 BTU Mini Split Air Conditioner & Heater. A 1 ton, 115 volt heat pump with 12300 BTU of heating, 5 modes, 4 fan speeds, sleep, ECO, iFEEL and turbo functions, a 0.5-24 hour timer, self-cleaning at 134.6F and auto defrost. COSTWAY lists 23 db and backs it with 5 years on parts and 8 years on the compressor, the longest compressor coverage here. It has a 4.4 average from 1,678 ratings shared across the series.
ROVSUN 9000 BTU WiFi Mini Split Air Conditioner & Heater. A smaller 0.75 ton system for spaces up to 400 sq.ft. with phone app, Alexa and Google Assistant control, 10,000 BTU/h of heating, a 28dB mute mode and a 16.4 copper line kit. The warranty is 1 year and an extra power cord is needed. It has a 4.2 average from 467 ratings.
Albott 12,000 BTU Mini Split Air Conditioner and Heater. A 115V system with built-in WiFi, SEER2 18, operation from 5F to 122F and a listed sound level below 29dB. It covers spaces up to 750 sq. ft., adds self-cleaning, a child lock and removable filters and air blades, but the power cord is not included. It has a 4.1 average from 420 ratings.
What to Expect from Mini-Split Air Conditioners Under $500
At this price, expect a complete 0.75 ton or 1 ton single-zone heat pump with an inverter compressor, 115V power, a remote and an installation kit. Efficiency is often excellent, around 19 to 20 SEER2. The trade-offs are shorter or less consistent warranty information, fewer published cold-weather ratings, and sometimes no Wi-Fi or shorter line sets. Installation labor is not included in the price.
For more options, see our guides to mini-split air conditioners under 1000 dollars and 12,000 BTU mini-split air conditioners. The product cards show the current price for each system.
How to Choose a Mini-Split Air Conditioner Under $500
Size the System to the Room
ENERGY STAR publishes this general guide for sizing a room air conditioner by floor area:
| Room Size (sq ft) | Cooling Capacity (BTU/hr) |
|---|---|
| 100 to 150 | 5,000 |
| 150 to 250 | 6,000 |
| 250 to 300 | 7,000 |
| 300 to 350 | 8,000 |
| 350 to 400 | 9,000 |
| 400 to 450 | 10,000 |
| 450 to 550 | 12,000 |
| 550 to 700 | 14,000 |
| 700 to 1,000 | 18,000 |
Reduce capacity by 10 percent for a heavily shaded room, increase it by 10 percent for a very sunny room, add 600 BTU for each regular occupant beyond two, and add 4,000 BTU if the unit cools a kitchen. Source: ENERGY STAR.
Budget brands often list generous room sizes. Treat the chart as the realistic guide and the listing figure as a best case.
Budget for Installation
The box price is only part of the cost. Most systems here need a licensed technician to mount the units, connect and vacuum the lines and open the valves, plus an electrician for the dedicated circuit and disconnect.
Read the Warranty Closely
Warranty terms vary widely at this price. COSTWAY and YITAHOME list long compressor coverage, while ROVSUN and Mountman list shorter terms. Some listings show different terms in different places, so confirm before you buy.
Check the Line Length
Rellytech includes 9.84ft connecting pipes, while ROVSUN includes a 16.4 line kit. A short kit limits where the outdoor unit can go.
How We Evaluate Mini-Split Air Conditioners Under $500
We rank mini splits on manufacturer specifications, listing details and aggregated buyer ratings. For this list, we kept only single-zone wall-mounted heat pumps sold as complete systems at a list price under the guide’s limit at the time of writing, and excluded multi-zone bundles, parts and listings with too little data. We weighed buyer feedback, efficiency, heating and room coverage first, then compared smart features, noise, included parts and warranty.
Frequently Asked Questions
Are cheap mini splits worth it?
For one room in a mild or moderate climate, yes. They deliver inverter efficiency and quiet operation, but read the warranty and plan for professional installation.
Which budget mini split has Wi-Fi?
The YITAHOME, ROVSUN and Albott in this guide all offer app control.
Which has the longest compressor warranty?
COSTWAY lists 8 years on the compressor and YITAHOME lists 7.
Can a budget mini split heat in winter?
Yes. All six are heat pumps. YITAHOME and Albott list operation down to 5F, while Rellytech’s outdoor range starts at 19F.
Final Verdict
The Mountman 12000 BTU Mini Split AC/Heating System is the best mini-split air conditioner under $500 for most homes, with a strong rating, quiet sleep mode and useful extras. For the lowest price, choose the Rellytech 12000 BTU Mini Split AC/Heating System. For Wi-Fi and Alexa on a budget, the YITAHOME 12000 BTU Mini Split AC/Heating System is the pick.
About the author
Daniel Brooks is a home cooling editor at WikiCooling, covering window, portable, through-the-wall and mini-split air conditioners, fans, and dehumidifiers. He researches cooling capacity, energy efficiency, noise levels, installation requirements, and buyer feedback to help homeowners choose the right unit for their room size, climate, and budget.