Short Introduction: Ductless mini split systems combine cooling and heating with high efficiency and flexible installation. Below is a quick comparison of five ductless air conditioner and heater units chosen for coverage, efficiency, and features to help you narrow options for rooms, garages, basements, or additions.
| Model | BTU / Coverage | Key Feature |
|---|---|---|
| COSTWAY 12000 BTU | 12,000 BTU / ~750 sq. ft. | Inverter compressor, 5 modes |
| YITAHOME 12000 BTU | 12,000 BTU / ~750 sq. ft. | Wi‑Fi / Alexa, HEPA style “HEALTH” mode |
| Goodman 18000 BTU | 18,000 BTU / ~1,000 sq. ft. | Higher capacity for larger rooms |
| MRCOOL 9000 BTU | 9,000 BTU / ~400 sq. ft. | DIY friendly, 5th generation |
| ROVSUN 11500 BTU | 11,500 BTU / ~550 sq. ft. | Wi‑Fi enabled, 17 SEER2 rating |
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COSTWAY 12000BTU Mini Split
The COSTWAY 12000BTU Mini Split is a wall‑mounted ductless unit that combines an AHRI certified pre‑charged condenser with an inverter compressor. Energy Efficient Cooling & Heating is emphasized through a 1‑ton heat pump and inverter technology that reduces compressor cycling to save power and extend equipment life.
Available modes include auto, cool, dry, heat, and fan plus four fan speeds, sleep, ECO, iFEEL, and turbo. The package highlights quiet operation and a remote control with a 0.5–24 hour timer. These features support stable temperature management and low noise for bedrooms or living rooms.
YITAHOME 12000 BTU Mini Split
The YITAHOME 12000 BTU mini split features a high‑power compressor with inverter technology and ETL and AHRI certification. The maker promotes roughly 25% energy savings over non‑inverter units and coverage up to 750 sq. ft., making it suitable for bedrooms, living areas, or garages.
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Notable features include Wi‑Fi and Alexa compatibility, automatic defrost, self‑diagnosis/cleaning, iFEEL mode, and a “HEALTH” mode for negative ions, electrostatic dust removal, and PM2.5 reduction. The unit lists quiet performance under 41 dB and multiple operation modes for year‑round comfort.
Goodman 18000 BTU Mini Split
Goodman’s 18,000 BTU mini split offers higher capacity intended for spaces up to 1,000 sq. ft. The unit uses a heat pump design to transfer heat efficiently for both heating and cooling seasons. Energy efficiency and a higher BTU rating make this a fit for larger rooms or combined open spaces.
Performance features include an inverter variable‑speed compressor, ECO+ function, sleep mode, and remote operation. The system is presented as an energy‑efficient replacement for older HVAC in moderate‑climate installations where higher capacity is required.
MRCOOL 9000 BTU Easy Pro
The MRCOOL Easy Pro 9000 BTU mini split is a 5th generation DIY‑friendly model suited for areas up to 400 sq. ft. It features combined heating and cooling capability and inverter technology for efficiency. The DIY focus reduces installation complexity for qualified owners.
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Key aspects include compact capacity for small rooms, garages, or accessory spaces and all‑season use. The unit may be attractive where simpler installation and lower BTU are appropriate without sacrificing heat pump benefits.
ROVSUN 11500 BTU Mini Split
The ROVSUN 11500 BTU mini split positions itself as an all‑season integrated system with Wi‑Fi and voice control. The unit carries a 17 SEER2 claim for energy savings and lists features such as automatic defrosting, self‑diagnosis, and multiple operating modes (ECO, sleep, timer).
The system advertises 25% energy savings over some lower SEER units and compatibility with mobile apps and voice assistants. This blend of smart controls and midrange capacity suits homeowners who prioritize remote access and efficiency.
Buying Guide: How To Choose A Ductless Air Conditioner And Heater
Selecting a ductless mini split requires comparing capacity, efficiency, controls, installation, and use case. The following considerations outline key purchase variables and comparison perspectives.
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
- Match BTU To Square Footage: Small rooms (300–450 sq. ft.) often need 9,000 BTU; medium rooms (450–800 sq. ft.) commonly use 12,000 BTU; larger open areas may require 18,000 BTU or multi‑zone systems.
- Ceiling Height And Insulation: Higher ceilings or poor insulation increase required capacity. Always adjust BTU estimates for room characteristics.
Efficiency Ratings
- SEER2 And HSPF/Heating Efficiency: Higher SEER2 ratings indicate better cooling efficiency; look for high HSPF or heat pump efficiency for winter performance.
- Inverter Technology: Units with inverter compressors modulate speed to reduce cycling and energy use. Inverter models typically deliver quieter and more consistent temperatures.
Installation And Compatibility
- Voltage And Electrical Needs: Check 115V vs 230V requirements. MRCOOL and many 115V units are suited for standard home circuits; larger 230V systems may need dedicated wiring.
- DIY vs Professional Install: Some brands (e.g., MRCOOL) advertise DIY compatibility; confirm local code and warranty implications before self‑installing.
- Pre‑Charged Condenser & Installation Kit: Pre‑charged linesets and included kits simplify install. Verify kit contents and line length limits.
Controls, Connectivity, And Indoor Air Quality
- Smart Controls: Wi‑Fi and voice compatibility offer remote scheduling and integration with home automation. Consider long‑term convenience and security for connected devices.
- Modes & Filtration: Look for modes you need—dry/dehumidify, sleep, turbo, and health functions like PM2.5 reduction if indoor air quality is a priority.
Noise And Comfort
- Decibel Levels: Units list idle/mute decibel specifications. For bedrooms, aim for lower dB ratings to ensure undisturbed sleep.
- Airflow And Distribution: Oscillation and multiple fan speeds help spread conditioned air evenly. iFEEL or sensor modes can balance temperature to occupied areas.
Reliability, Certification, And Warranty
- Certifications: ETL and AHRI certifications indicate verified performance and safety testing.
- Warranty Terms: Compare compressor and parts warranties. Professional installation requirements may affect warranty validity.
Comparison Perspectives
- Budget vs Long‑Term Efficiency: Lower upfront cost units can operate less efficiently; inverter and higher SEER2 units offer better long‑term operating costs.
- Single Zone vs Multi‑Zone: Single‑zone systems are simpler and less expensive. For multiple rooms, compare multi‑zone systems or multiple single‑zone units for flexibility.
- DIY Installation vs Professional Service: DIY may lower installation cost but can affect warranty and system performance. Professional installation provides refrigerant handling and optimized placement.
- Smart Features vs Simplicity: Wi‑Fi and voice control add convenience and scheduling but introduce connectivity considerations. Evaluate privacy, app support, and long‑term software updates.
Final Selection Checklist
- Confirm room square footage and adjust for insulation and window exposure.
- Choose BTU and SEER2 appropriate for climate and expected run hours.
- Decide on Wi‑Fi and air quality features based on lifestyle needs.
- Verify electrical compatibility, included installation kit, and warranty conditions.
- Balance upfront cost against projected energy savings from inverter and higher SEER2 models.