Best Mini Split Systems for Cooling and Heating 800 Sq Ft Spaces 2025

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Finding the best mini split for 800 sq ft can maximize comfort while optimizing energy efficiency. This guide reviews top-quality mini split air conditioners and heat pumps suitable for spaces around 800 square feet. Included are dual-zone and single-zone models with varying BTU capacities, inverter technology, smart controls, and quiet operation features. Below is a summary table showcasing key specs of the selected products for easy comparison.

Product BTU Capacity Zones Coverage Sq Ft Energy Rating (SEER2) Smart Features
DELLA 18K BTU ODU 2 Dual Zone Mini Split 18,000 (2 x 9,000) 2 800 19 SEER2 WiFi, Alexa Compatible
YITAHOME 22 SEER2 18K BTU 2 Zone Mini Split 18,000 (2 x 9,000) 2 800 22 SEER2 WiFi, Alexa Compatible
Manastin 12000 BTU Mini Split AC & Heat Pump 12,000 1 750 17 SEER2 Installation Kit Included
DELLA Motto Series 12000 BTU Wifi Mini Split 12,000 1 550 20 SEER2 WiFi, Alexa Compatible
Manastin 12000 BTU Mini Split with Inverter 12,000 1 750 19 SEER2 Various Modes, Energy Saving

DELLA 18K BTU Dual Zone Wifi Mini Split Air Conditioner

DELLA 18K BTU Dual Zone Wifi Mini Split

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This dual-zone mini split system from Della offers 18,000 BTU cooling and heating capacity spread evenly across two indoor air handlers (9,000 BTU each). It efficiently cools or heats up to 800 sq. ft with 19 SEER2 efficiency rating and is compatible with Alexa for smart home integration. The unit employs DC inverter technology and a heat pump for energy savings about 30%, with robust performance even in environments as low as 5°F. The package includes 16 ft copper pipes and installation kits for convenience. Note that the system does not support the self-cleaning option despite the control display.

YITAHOME 22 SEER2 18K BTU 2 Zone Mini Split AC and Heater

YITAHOME 22 SEER2 18K BTU 2 Zone Mini Split

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The YITAHOME dual zone mini split offers 9000 BTU + 9000 BTU indoor units to cover 800 sq. ft combined. Rated at an impressive 22 SEER2, it emphasizes energy efficiency and silent operation under 40 decibels. Equipped with a high-power compressor and heat pump, this model provides versatile modes including auto, cool, dry, heat, and fan, along with WiFi and Alexa compatibility for remote control convenience. Additional features like automatic defrost, a 24-hour timer, and iFEEL mode enhance comfort and usability.

Manastin 12000 BTU Mini Split AC & Heater with Installation Kit

Manastin 12000 BTU Mini Split AC and Heater

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This single-zone 12000 BTU mini split effectively cools and heats up to 750 sq. ft. It features a 17 SEER2 rating, utilizing advanced inverter technology combined with eco-friendly R32 refrigerant. This unit is recognized for rapid temperature control, cooling within 30 seconds and heating within 60 seconds. Users can select from five modes and four fan speeds, including Turbo and ECO modes. The included install kit simplifies setup, making it practical for medium-sized rooms requiring efficient climate control year-round.

DELLA Motto Series 12000 BTU Wifi Enabled Mini Split

DELLA Motto Series 12000 BTU Wifi Mini Split

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Designed for rooms up to 550 sq. ft, the Della Motto Series offers a 12000 BTU unit with a higher efficiency rating of 20 SEER2. It runs on 110-120V power and supports Alexa voice commands and WiFi control. Its smart sensor located on the remote control adjusts cooling based on room temperature readings for personalized comfort and optimized energy use. Features include 4D airflow, turbo and eco functions, sleep mode, and multiple fan speeds. Installation kit with copper piping and drain lines comes standard.

Manastin 12000 BTU Mini Split Air Conditioner with 19 SEER2 Inverter

Manastin 12000 BTU Mini Split Air Conditioner

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This Manastin mini split unit boasts a 19 SEER2 rating and a 1 Ton heat pump, suitable for spaces up to 750 sq. ft. It uses R32 refrigerant for an eco-friendlier footprint. The system supports multiple modes (cooling, heating, auto, fan, dry) and four adjustable fan speeds to adapt efficiently to user needs. Energy-saving functions like Sleep Mode, Eco Mode, and Turbo Boost optimize comfort and reduce power consumption. A complete installation kit is included for straightforward setup.

Comprehensive Buying Guide for Mini Split Systems Covering 800 Sq Ft

Choosing the right mini split system for an 800 square feet area depends on several essential factors:

1. Cooling and Heating Capacity

The BTU capacity should match the room size. For 800 sq. ft, units rated around 12,000 to 18,000 BTUs are typical. Dual-zone systems split this capacity between rooms, allowing independent control.

2. Energy Efficiency Ratings

Look for SEER2 ratings (Seasonal Energy Efficiency Ratio) as a measure of energy consumption. Ratings above 17 SEER2 indicate better efficiency, potentially saving on electricity bills.

3. Smart Features and Connectivity

WiFi-enabled units and voice assistant compatibility (Alexa) offer remote control convenience, smart scheduling, and temperature monitoring, enhancing user experience and energy management.

4. Installation and Kit Inclusions

Complete kits with copper piping, drain tubes, and mounting hardware simplify installation. Consider available pipe lengths to ensure compatibility with your setup layout.

5. Noise Levels and Operation Modes

Quiet operation is important for bedrooms or workspaces, so check decibel ratings (below 40 dB preferred). Multiple operation modes such as auto, dry, turbo, sleep, and eco modes provide adaptability to varying climate needs.

6. Refrigerant Type and Environmental Impact

Newer units use R32 refrigerant, which has lower environmental impact compared to older alternatives. Choosing these helps reduce your carbon footprint while maintaining efficiency.

7. Voltage Compatibility

Confirm the system voltage matches your home’s electrical supply (115V or 208-230V) to ensure safe, reliable operation.

Considering these aspects will help you select the best mini split system perfectly suited for 800 sq. ft spaces, balancing performance, efficiency, and user-friendly features.

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