Choosing the right mini split air conditioner for a 900 square foot area involves considering energy efficiency, cooling and heating capacity, installation convenience, and smart features. Below is a comparison table highlighting key attributes of top-rated mini split AC units suitable for this size space, followed by detailed reviews of each product.
| Product | BTU Capacity | Coverage Area | Energy Efficiency (SEER2) | Smart Features | Heating Capability |
|---|---|---|---|---|---|
| DELLA Econo Series 16500 BTU Mini Split | 16500 BTU | Up to 1000 Sq. Ft | 17 SEER2 | WiFi, Alexa, 4D Air Flow, Timer | Heat Pump (down to 14℉) |
| DELLA Vario Series 18000 BTU Mini Split | 18000 BTU | Up to 1000 Sq. Ft | 19 SEER2 | WiFi, Alexa, 4D Air Flow, Timer | Heat Pump (down to -4℉) |
| YITAHOME 9000 BTU Mini Split | 9000 BTU | Up to 450 Sq. Ft | 19 SEER2 | WiFi, Alexa, Health Mode, 4D Air Circulation | Heat Pump |
| DELLA Motto Series 18000 BTU Mini Split | 18000 BTU | Up to 1000 Sq. Ft | 19 SEER2 | WiFi, Alexa, 4D Air Flow, Timer | Heat Pump (down to 19℉) |
| MilleLoom 12000 BTU Mini Split | 12000 BTU | Up to 750 Sq. Ft | 22 SEER2 | WiFi, Google Compatible, Health Mode, 4D Circulation | Heat Pump (down to -4℉) |
DELLA Econo Series 16500 BTU Mini Split AC – Efficient Cooling up to 1000 Sq. Ft
This 16500 BTU mini split is ETL Listed and AHRI Certified, providing energy efficient cooling and heating with a 17 SEER2 rating. It effectively cools and heats spaces up to 1000 square feet using a heat pump that operates in temperatures as low as 14℉ (-10℃). The pre-charged unit comes with a full 16ft installation kit featuring standard copper piping.
Smart functions include 4D air flow capable of adjusting airflow up, down, left, and right, plus modes like I feel, turbo, sleep, eco energy savings, and a 24-hour timer. Connectivity extends to Alexa and WiFi control, enhancing user convenience. This inverter system conserves up to 30% power compared to traditional units.
DELLA Vario Series 18000 BTU Wifi Mini Split AC – Powerful Cooling for 1000 Sq. Ft
Equipped with 19 SEER2 inverter technology, the 18000 BTU Vario Series supports efficient cooling and heating in up to 1000 square feet. It functions reliably in extreme cold down to -4℉ (-20℃), making it suitable for winter climates. The system is supplied pre-charged and includes a 16.4ft installation kit.
Additional features are Alexa and WiFi compatibility, 4D airflow control, eco energy-saving mode, multiple fan speeds, and a 24-hour timer. The unit also supports turbo and dry modes, providing versatile comfort options. Its maximum fuse size rating is 20A.
YITAHOME 9000 BTU Mini Split Air Conditioner – Compact and Efficient for Smaller Spaces
This mini split unit offers 19 SEER2 energy efficiency and cools areas up to 450 square feet, suitable for smaller rooms within a 900 sq. ft home. It features a 115V power supply, an advanced inverter compressor for energy savings, and a heat pump for year-round temperature control.
It provides five operation modes including auto, cool, dry, heat, and fan. The unit also supports WiFi and Alexa compatibility. Notably, this model includes a HEALTH mode that generates negative ions and electrostatic dust removal for improved indoor air quality. The quiet operation at under 41dB makes it ideal for bedrooms or office spaces.
DELLA Motto Series 18000 BTU Mini Split AC – Eco-Friendly Cooling and Heating
The Motto Series delivers 19 SEER2 rated cooling and heating for spaces up to 1000 square feet while using the environmentally friendly R32 refrigerant. It integrates inverter plus technology to provide up to 30% energy savings and operates effectively down to 19℉ (-7℃).
This ductless system offers WiFi and Alexa operation alongside smart functions such as 4D airflow, turbo mode, multiple fan speeds, and sleep mode. The unit includes a 13ft copper line installation kit and a 6.56ft drain pipe, ensuring a comprehensive setup package.
MilleLoom 12000 BTU Mini Split AC – High Efficiency Cooling for up to 750 Sq. Ft
This model features a 22 SEER2 rating, offering excellent energy efficiency with a 12000 BTU compressor suitable for cooling and heating spaces up to 750 square feet. It supports a broad range of climate conditions, operating from -4℉ (-20℃) to 140℉ (60℃) with stable performance.
MilleLoom’s unit supports five modes: cool, heat, fan, dry, and auto with WiFi and Google compatibility. Additional benefits include health modes that reduce PM2.5 and dust particles, 4D air circulation for even temperature distribution, and low noise operation with an airflow distance reaching up to 50 feet.
Buying Guide for Mini Split AC Units Suitable for 900 Sq. Ft
When selecting a mini split air conditioner for a 900 square foot area, it’s important to evaluate several key factors to make an informed choice tailored to your needs.
Cooling and Heating Capacity (BTU)
The cooling capacity, measured in British Thermal Units (BTU), determines the area the AC can effectively cool or heat. For approximately 900 sq. ft, units with 15,000 to 18,000 BTU are generally optimal, ensuring efficient temperature control without overworking the system.
Energy Efficiency (SEER2 Ratings)
Higher Seasonal Energy Efficiency Ratio (SEER2) values indicate better energy performance. Choosing units with at least 17 SEER2 helps lower electricity bills and environmental impact. Some models reach 19 or even 22 SEER2, offering significant savings.
Heating Capability and Climate Adaptability
Mini splits with heat pumps extend usage year-round. Check the minimum operating temperature for heating, especially if your region experiences extreme cold. Some systems can operate reliably down to -4℉ or lower, which is beneficial for colder climates.
Installation and Kit Completeness
Opt for systems with a complete installation kit, including pre-charged refrigerant lines and drainage pipes. This simplifies installation and ensures compatibility. Line set lengths and copper pipe sizes should match your installation needs.
Smart Features and Controls
WiFi connectivity and voice assistant compatibility with Alexa or Google can greatly enhance convenience. Features like 4D airflow, timers, sleep mode, eco setting, and health air filters provide customized comfort and efficiency.
Noise Level and Airflow Distribution
Quiet operation is crucial for bedrooms or office spaces. Look for units with low decibel ratings. Additionally, advanced airflow technology such as 4D circulation ensures even distribution and efficient temperature control throughout the room.
Environmental Impact
Choosing mini splits that use eco-friendly refrigerants (like R32) supports greener air conditioning by reducing greenhouse gas emissions and improving indoor air quality.