Quick Overview: Ductless mini split systems provide both cooling and heating without ductwork, making them efficient for single rooms, additions, or retrofit projects. The table below summarizes the five selected units that balance SEER2/HSPF2 ratings, BTU capacity, smart features, and installation convenience.
| Product | BTU / Coverage | Key Strength |
|---|---|---|
| COSTWAY 12000 BTU Mini Split | 12,000 BTU / Up To 750 Sq. Ft. | High SEER2, inverter heat pump, 5 modes |
| Cooper & Hunter 9,000 BTU Mia | 9,000 BTU / Small Rooms | 21.5 SEER2, smartphone app support, included kit |
| OYLUS 12000 BTU Mini Split | 12,000 BTU / Up To 750 Sq. Ft. | 19 SEER2, HSPF2 heating efficiency, ECO mode |
| MRCOOL 12000 BTU Easy Pro | 12,000 BTU / Up To 550 Sq. Ft. | DIY-friendly 5th Gen unit, balanced heating/cooling |
| YITAHOME 12000 BTU Wi‑Fi Enabled | 12,000 BTU / Up To 750 Sq. Ft. | 20 SEER2, Wi‑Fi/Alexa compatibility, health mode |
Content Navigation
COSTWAY 12000 BTU Mini Split
The COSTWAY 12000 BTU Blast Series is an AHRI certified, wall-mounted ductless unit with an integrated heat pump and inverter compressor. It is rated to cool spaces up to 750 sq. ft. and provides five operating modes: auto, cool, dry, heat, and fan.
Key features include an energy-efficient inverter that modulates compressor speed to reduce power cycling and improve longevity. The unit offers four fan speeds, sleep and ECO modes, iFEEL temperature sensing, and a turbo function. Control is via the supplied remote, which includes a display that auto-dims to avoid nighttime disturbance.
Noise control and timed operation are highlighted with low-noise performance and a 0.5–24 hour programmable timer. The design targets year-round comfort in medium to large rooms where ductwork is not practical.
Cooper & Hunter 9,000 BTU Mia
Call 888-896-7031 for Free Local HVAC Quotes – Compare and Save Today!
The Cooper & Hunter Mia Series 9,000 BTU unit emphasizes high SEER2 performance and smart control. With a 21.5 SEER2 rating, it targets efficient cooling while including a heat pump capable of heating down to ~5°F ambient conditions.
This single-zone wall mount comes pre-charged with refrigerant and includes a 16 ft installation kit with pre-flared and insulated copper line set, communication wiring, and a drain extension. A smart port adapter enables mobile app control via C&H Remote for on/off, temperature, mode switching and fan adjustments.
For small rooms or tight retrofit spaces, its compact 9,000 BTU capacity and included installation materials make it a focused option where smart connectivity and higher SEER2 ratings are priorities.
OYLUS 12000 BTU Mini Split
The OYLUS 12000 BTU system pairs a 19 SEER2 cooling rating with an HSPF2 heating performance of 8.5, positioning it for balanced year-round efficiency. It lists 12,000 BTU cooling and 12,500 BTU heating, suitable for rooms up to 750 sq. ft.
Efficiency features include inverter technology and an ECO mode designed to reduce energy use. Temperature control ranges from 61°F to 88°F, and the unit includes a 24-hour timer, multiple fan speeds, and an LED display with dimming for night operation.
Call 888-896-7031 for Free Local HVAC Quotes – Compare and Save Today!
This model stresses energy savings—claiming up to 36% lower energy use versus traditional models—and emphasizes simple remote-based control for everyday convenience.
MRCOOL 12000 BTU Easy Pro
The MRCOOL Easy Pro 12000 BTU is part of a series designed for simplified installation and all-season operation. It provides cooling and heating with coverage around 550 sq. ft., making it well-suited for medium rooms or offices.
As a 5th generation DIY-capable unit, it targets ease of setup for experienced installers or pro contractors. The unit emphasizes balanced heating and cooling performance and is presented as a practical HVAC choice for homeowners seeking a proven manufacturer with a focus on installation flexibility.
Specifications highlight inverter-driven performance and compact wall-mounted indoor styling. The system is positioned as a versatile option for both residential and light commercial applications.
YITAHOME 12000 BTU Wi‑Fi Enabled
The YITAHOME 12000 BTU inverter mini split focuses on smart home integration with Wi‑Fi and Alexa compatibility. It is ETL and AHRI certified and rated to cover up to 750 sq. ft.
Features include five operating modes (auto/cool/dry/heat/fan), automatic defrost, self-diagnosis, self-cleaning, and a health mode providing negative ions and PM2.5 removal. The unit claims noise levels under 41 dB, a 0–24 hour timer, and multiple fan speeds.
Energy efficiency is highlighted with a 20 SEER2 rating and inverter technology designed to cut energy use while offering remote control through a smartphone app or voice assistant for convenience.
Buying Guide: Choosing The Right Ductless Mini Split With Heater
Selecting a ductless mini split involves technical and lifestyle considerations. Below are key factors to compare across units, with multiple perspectives to help match the system to your needs.
Tips for Getting the Best HVAC Prices
- Prioritize Quality Over Cost
The most critical factor in any HVAC project is the quality of the installation. Don’t compromise on contractor expertise just to save money. - Check for Rebates
Always research current rebates and incentives — they can significantly reduce your overall cost. - Compare Multiple Quotes
Request at least three estimates before making your choice. You can click here to get three free quotes from local professionals. These quotes include available rebates and tax credits and automatically exclude unqualified contractors. - Negotiate Smartly
Once you've chosen a contractor, use the proven strategies from our guide — How Homeowners Can Negotiate with HVAC Dealers — to get the best possible final price.
Capacity And Room Size
- BTU Rating: Match BTU to room size and heat gain/loss. 9,000 BTU suits small rooms; 12,000 BTU commonly covers medium spaces up to ~750 sq. ft. Always account for insulation, ceiling height, windows, and climate.
- Multiple Zones: For open plans or multiple rooms, consider multi-zone systems or additional single-zone units rather than undersized single units.
Energy Efficiency And Performance
- SEER2 (Cooling): Higher SEER2 means better cooling efficiency. Models like Cooper & Hunter cited higher SEER2 ratings for lower operating costs.
- HSPF2 / Heating Capability: Look at heating performance and the lowest ambient temperature rating for heat pump operation—important in colder climates.
- Inverter Technology: Inverter compressors modulate speed to improve efficiency, reduce temperature swings, and lengthen component life.
Installation & Kit Inclusions
- Pre-Charged Systems & Line Length: Pre-charged units simplify installation; included line sets and communication wires (e.g., 16–25 ft kits) reduce accessory purchases.
- Voltage Requirements: Confirm 115V vs 208–230V compatibility with your space. Larger commercial units often require higher voltage.
- DIY vs Pro Install: Some units (MRCOOL Easy Pro) are marketed for DIY-capable installs; confirm local codes and warranty implications before DIY.
Controls, Connectivity, And Smart Features
- Remote & App Control: Remote control is standard; Wi‑Fi and smartphone integration add convenience for scheduling and remote operation.
- Voice Assistant Compatibility: Units with Alexa or Google Assistant compatibility support voice routines and home automation.
- Smart Sensors: Features such as iFEEL or room sensors can improve temperature accuracy and comfort.
Noise And Comfort Modes
- Operational Noise: Look for published dB levels for quiet operation, especially for bedrooms and living rooms.
- Modes: Sleep, ECO, turbo, dry (dehumidify), and auto modes adjust comfort and efficiency for different daily needs.
Air Quality & Maintenance Features
- Filtration: Some units include enhanced filtration, negative ion or PM2.5 modes to improve indoor air quality.
- Self-Cleaning & Diagnosis: Auto-clean, self-diagnosis, and display-off functions reduce maintenance and help with troubleshooting.
Durability, Certification & Warranty
- Certifications: AHRI and ETL listings indicate verified performance and safety compliance.
- Operating Range: Check claimed minimum ambient temperatures for heating—important for cold climates.
- Warranty: Compare manufacturer warranty terms for compressor, parts, and labor; warranty coverage can affect long-term value.
Comparison Perspectives
- Efficiency-Focused Buyers: Prioritize high SEER2 and HSPF2 numbers and inverter designs for lower long-term energy costs.
- Smart/Home Automation Users: Choose Wi‑Fi/Alexa compatible units for remote and voice control convenience.
- Install/Retrofit Practicality: Units with included kits and pre-charged lines reduce installation complexity and accessory cost.
- Cold Climate Considerations: Look for systems that operate at low ambient temperatures for reliable winter heat pump performance.