Ductless mini split AC systems provide efficient zoned cooling and heating for rooms without extending central HVAC. Choose by room size, noise level, energy efficiency (SEER2), and features like WiFi or air-cleaning modes. Below is a quick comparison of five top options to match needs from small bedrooms to larger 750 sq. ft. spaces.
| Model | BTU / Coverage | SEER2 | Best For |
|---|---|---|---|
| Temprium 12000 BTU | 12,000 BTU / up to 750 sq. ft. | 22 SEER2 | Energy-conscious, ultra-quiet bedrooms |
| YITAHOME 12000 BTU | 12,000 BTU / up to 750 sq. ft. | 20 SEER2 | Smart-home & allergy-aware buyers |
| Rellytech 12000 BTU | 12,000 BTU / up to 750 sq. ft. | 19 SEER2 | Custom airflow & eco-mode users |
| Bonnlo 9000 BTU | 9,000 BTU / up to 450 sq. ft. | 19 SEER2 | Smaller rooms, offices, garages |
| ROVSUN 9000 BTU | 9,000 BTU / up to 400 sq. ft. | 19 SEER2 | Quiet small-room cooling with dehumidify |
Temprium 12000 BTU Mini Split (22 SEER2)
Key listed features:
- 22 SEER2 inverter technology for energy savings.
- R32 refrigerant (GWP 675) and 12,000 BTU cooling / 12,300 BTU heating.
- Operates down to 5°F for heating and up to 122°F for cooling.
- Extremely low noise levels (as low as 23 dB) and WiFi smart control.
Best for energy-conscious homeowners and bedroom installations because the 22 SEER2 rating and ultra-quiet operation reduce utility costs and disturbance. Choose this if you need high seasonal efficiency and whisper-quiet performance.
Caution: Avoid this if you need coverage for spaces larger than the listed 750 sq. ft. The performance claims and coverage limits are specific to this model.
YITAHOME 12000 BTU Mini Split (WiFi & Health Mode)
Key listed features:
- 20 SEER2 inverter heat pump covering up to 750 sq. ft.
- WiFi-enabled and Alexa-compatible; five modes (auto/cool/dry/heat/fan).
- “HEALTH” mode with negative ions, electrostatic dust removal, and PM2.5 removal.
- Silent performance with noise below 41 dB and automatic self-diagnosis/defrost.
Best for smart-home users and buyers prioritizing indoor air quality because the unit includes WiFi/Alexa compatibility and a health-focused air-cleaning mode. Choose this if you want app control and additional filtration-related features built into the unit.
Caution: Avoid this if you require the lowest audible noise; listed noise levels are higher than some ultra-quiet models like Temprium.
Rellytech 12000 BTU Mini Split (19 SEER2, ECO Mode)
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Key listed features:
- 12,000 BTU cooling and 12,500 BTU heating; covers up to 750 sq. ft.
- 4 modes (cool/heat/fan/dry) plus ECO mode to optimize energy use.
- Four fan speeds and 90° vertical swing for customizable airflow.
- Pre-charged system with included installation kit listed in product details.
Best for buyers who want customizable airflow and an economy mode that balances comfort and energy use. Choose this if adjustable fan speeds and vertical swing are priorities to distribute air across a room evenly.
Caution: Avoid this if you need a wider operating temperature range; the listed temperature range is 61°F–88°F, which is narrower than some other models.
Bonnlo 9000 BTU Mini Split (Compact 19 SEER2)
Key listed features:
- 9,000 BTU cooling and heating; covers up to 450 sq. ft.
- 19 SEER2 inverter technology for energy savings versus older units.
- 4-in-1 modes: cool, heat, fan, dry for year-round use.
- Pre-charged condenser and installation kit included per product listing.
Best for smaller rooms such as bedrooms, home offices, or small living areas because the 9,000 BTU capacity targets spaces up to about 450 sq. ft. Choose this if you have limited space needs and want improved efficiency over older systems.
Caution: Avoid this if your space exceeds the listed coverage area; the 9,000 BTU rating is not intended for larger rooms where 12,000 BTU units are recommended.
ROVSUN 9000 BTU Mini Split (WiFi, 19 SEER2)
Key listed features:
- 9,000 BTU system for spaces up to 400 sq. ft.; heat pump and dehumidify mode.
- 19 SEER2 energy-saving inverter technology and pre-charged condenser.
- Ultra-quiet operation listed at 28 dB in mute mode and WiFi-enabled control.
- Rapid cooling/heating with a wide 61°F–88°F operating range.
Best for quiet small-room installations where dehumidification and WiFi control matter. Choose this unit if you want an energy-efficient small-capacity system with low noise for bedrooms or offices.
Caution: Avoid this if you need coverage for medium or large rooms; the listed capacity and coverage top out around 400 sq. ft.
Buying Guide: How To Choose A Ductless Mini Split System
How do I choose the right BTU size for my room?
Select BTU based on room square footage, ceiling height, insulation quality, window area, and sun exposure. Typical guidance from listed products: 9,000 BTU units suit roughly 350–450 sq. ft., while 12,000 BTU units list coverage up to 750 sq. ft. Use the listed coverage as the primary sizing reference for each model.
What SEER2 rating should I consider?
SEER2 indicates seasonal energy efficiency. Higher SEER2 (for example, 22 SEER2) reduces operating costs in cooling-dominant climates. Consider higher SEER2 for permanent living spaces and lower to mid SEER2 for secondary rooms. Compare SEER2 across models to estimate efficiency differences.
Do I need WiFi, smart features, or air-cleaning modes?
WiFi and smart features provide remote control, scheduling, and voice assistant compatibility. Air-cleaning or “HEALTH” modes add ionization or PM2.5 removal that can reduce particulate levels. Choose these features if app control or air quality is important to your household.
What about noise levels and quiet operation?
Manufacturers list noise levels; examples include 23 dB for ultra-quiet models and up to 41 dB for quieter but not whisper-quiet units. For bedrooms or libraries, prefer units with the lowest listed dB ratings and specific “sleep” modes to minimize disruption.
How important is refrigerant type and pre-charged condensers?
R32 refrigerant appears on some listings and offers lower global warming potential than older refrigerants. Pre-charged condensers and included installation kits reduce installation complexity by providing factory charge and parts, but installation requirements and local codes vary. Use product feature listings to confirm pre-charged status if DIY or simplified installation is a priority.
Should I prioritize multi-mode operation and airflow control?
Multi-mode (cool/heat/fan/dry) supports year-round use. Adjustable fan speeds and wide swing angles improve comfort distribution. Choose models with multiple modes and fan-speed settings if even air distribution and dehumidification matter.
FAQ
Can ductless mini split systems both cool and heat? Yes. Many units are heat pumps that provide both cooling and heating, as listed in these product features.
Are ductless mini splits energy efficient? Yes. Energy efficiency is shown by SEER2 ratings; higher SEER2 numbers indicate greater seasonal efficiency and lower operating cost potential.
Do mini split systems come with installation kits? Some product listings include a complete installation kit and pre-charged condensers. Check the product features to confirm what is included for each model.
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How loud are these systems? Listed noise levels vary by model. Examples in these product features range from about 23 dB (very quiet) to under 41 dB. Compare listed dB values when noise is a key factor.
Is refrigerant type important? Refrigerant type affects environmental impact and service requirements. Several models list R32 or similar refrigerants; check the product feature list to confirm the refrigerant used.
Can I install a mini split myself? Some models include installation kits and pre-charged condensers that simplify installation. Local codes, electrical work, and refrigerant handling rules may require a licensed installer. Refer to product details and local regulations before attempting DIY installation.
How to Get the Best HVAC Prices
- Firstly, keep in mind that installation quality is always the most important thing for residential HVAC project. So never sacrifice contractor quality for a lower price.
- Secondly, remember to look up the latest rebates as we talked above.
- Thirdly, ask for at least 3 bids before you make the decision. You can click here to get 3 free estimates from your local contractors, and this estimate already takes rebates and tax credit into consideration and filter unqualified contractors automatically.
Lastly, once you chose the right contractor, remember to use the tactics from this guide: Homeowners Tactics When Negotiating with HVAC Dealer to get the final best price.
