Looking for the best 0.75 ton mini split air conditioners? This article covers top-performing ductless mini split heat pumps ideal for efficient cooling and heating in spaces around 400 to 450 square feet. Below is a summary table highlighting the essential specs of 5 selected mini splits suitable for American homes, featuring energy efficiency, WiFi capabilities, and various smart features designed for comfort and convenience.
Product | BTU | Coverage (Sq.Ft.) | Voltage | SEER2 Rating | Smart Features | Heating Capability |
---|---|---|---|---|---|---|
DELLA Motto Series | 9000 | 450 | 115V | 19 | WiFi, Alexa, Smart Sensor | Heat Pump 0.75 Ton |
DELLA Vario Series | 9000 | 400 | 230V | 19 | WiFi, Alexa, Timer | Heat Pump 0.75 Ton |
DELLA Hyper Heat Series | 9000 | 400 | 115V | 23 | WiFi, Alexa, Eco Mode | Hyper Heat Pump to -13°F |
ARLIME Mini Split AC | 9000 | 450 | 208-230V | 17 | Quiet Sleep, 4D Airflow | 0.75 Ton Heat Pump |
Confortotal 12000 BTU Mini Split | 12000 | 550 | 110V | N/A | WiFi, Alexa Compatible | 1 Ton Heat Pump |
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DELLA Motto Series 9000 BTU Wifi Mini Split

The DELLA Motto Series offers a 19 SEER2 efficiency rating with 9000 BTU cooling power, making it ideal for areas up to 450 square feet. Operating on a standard 115V supply, it features a pre-charged heat pump with DC inverter technology that can save up to 30% in power usage. This unit includes a full installation kit with copper piping and a drain line. The system adapts to your comfort with a smart sensor located in the remote, adjusting airflow and temperature dynamically.
Additional functions include 4D airflow (up-down, left-right), turbo mode, sleep mode, multiple fan speeds, and both heating and cooling modes. It is ETL listed and AHRI certified, ensuring compliance with safety and performance standards.
DELLA Vario Series 9000 BTU Mini Split AC with Alexa

Designed for slightly smaller spaces up to 400 sq. ft., the DELLA Vario Series provides efficient cooling and heating with its 19 SEER2 inverter system operating on 230V. It operates effectively in temperatures as low as -4°F. The pre-charged heat pump and extended drain piping support flexible installation options.
Featuring WiFi connectivity and Alexa compatibility, the unit boasts smart controls including 4D airflow, eco mode for energy savings, a sleep timer, and multiple operation modes such as heat, cool, and dry. Maximum fuse rating is 15A, supporting moderate electrical load requirements.
DELLA Hyper Heat WiFi Mini Split AC & Heat Pump

The DELLA Hyper Heat Series stands out with a superior 23 SEER2 rating, granting enhanced energy efficiency. This 9000 BTU, 115V mini split supports heating down to -13°F, excellent for cooler climates. It is purpose-built for rooms up to 400 square feet, pre-charged with a heat pump unit and includes a 16.4 ft installation kit.
This model integrates with Alexa and supports multiple operation modes, including auto, dry, fan-only, and an eco energy-saving mode for cost-effective performance. It is Energy Star rated, ETL listed, AHRI certified, and backed by a lifetime warranty. Note that professional installation is required.
ARLIME 9000 BTU Inverter Mini Split AC & Heater

The ARLIME Mini Split combines a 17 SEER2 efficiency rating and 8.5 HSPF2 for heating, offering effective temperature control for spaces up to 450 sq. ft. It utilizes R32 refrigerant, enhancing sustainability, safety, and cooling performance. This 208-230V unit delivers cooling down to 60°F and heating up to 90°F.
Functionality includes a fan, cooler, heater, and dehumidifier with 4D airflow covering extensive directional reach, four customizable wind speeds, and a quiet sleep mode. The included installation kit ensures smooth setup. The unit is ARHI and ETL certified for reliable performance.
Confortotal 12000 BTU Mini Split Air Conditioner and Heat Pump

The Confortotal 12000 BTU unit surpasses the 0.75 ton range slightly with 1 ton capacity and covers up to 550 sq. ft. Running on standard 110V, it supports WiFi connectivity and Alexa integration for smart home compatibility. This ductless mini split is designed for both cooling and heating with an effective heat pump system.
While this model does not list SEER2 ratings, it remains a solid option for users needing a slightly higher BTU output in areas where extended coverage or increased capacity is essential. It includes installation components to facilitate setup.
Buying Guide for 0.75 Ton Mini Split Systems
Selecting the right 0.75 ton mini split system involves considering several factors to ensure optimal comfort, energy efficiency, and installation feasibility. Below are key points to guide your purchase:
Cooling and Heating Capacity
Standard 9000 BTU mini splits correspond to approximately 0.75 ton capacity, suitable for rooms ranging from 350 to 450 sq. ft.. Verify the recommended square footage coverage to avoid undersized or oversized units that could impact performance and energy consumption.
Energy Efficiency Ratings (SEER2 and HSPF2)
Look for units with high SEER2 (Seasonal Energy Efficiency Ratio) and HSPF2 (Heating Seasonal Performance Factor) ratings. Higher numbers indicate more efficient systems that reduce electricity costs while maintaining comfort year-round.
Voltage Compatibility
Check if the system matches your residential electrical supply:
- 115V units are compatible with typical US household outlets.
- 230V units require dedicated circuits but can provide enhanced cooling/heating performance.
Choosing the correct voltage avoids installation complications or the need for additional electrical work.
Smart Features and Controls
Many modern mini splits include WiFi connectivity and smart assistant compatibility (such as Alexa), enabling remote temperature control, scheduling, and energy management. Features like smart sensors detect room temperature via remote control to optimize comfort and efficiency.
Installation and Line Set Length
Installation kits typically include copper piping and drain lines; length varies by model. Consider the distance between indoor and outdoor units to ensure the included line set is sufficient or be prepared for additional materials. Many mini splits require professional installation to guarantee system integrity and refrigerant handling compliance.
Heating Performance in Cold Climates
If you live in regions with cold winters, opt for models supporting hyper heat or low ambient heating performance (down to -13°F or lower). Such units maintain heating efficiency in freezing temperatures better than standard heat pumps.
Refrigerant Type
Modern mini splits increasingly use environmentally friendly refrigerants, such as R32, replacing older types with higher global warming potential. Choosing an R32 model supports sustainability while providing effective cooling.
By weighing these considerations, you can select a 0.75 ton mini split air conditioner and heat pump that meets your space, energy, and comfort needs effectively.