Choosing the right 4 room mini split system can transform your home’s climate control by delivering precise, energy-efficient comfort tailored to multiple spaces. Mini split systems offer individual temperature management, ideal for families and offices needing customizable cooling and heating for different rooms. Below is a summary table of top mini split systems designed for four-room setups, highlighting key features to help you make an informed decision.
| Product | BTU Capacity | SEER Rating | Heating Capability | Smart Features |
|---|---|---|---|---|
| Della 36K BTU Quad 4 Zone Mini Split | 36,000 (9K+9K+12K+18K) | 19 SEER2 | Heat Pump (Works to -4°F) | WiFi & Alexa Compatible |
| COSTWAY 30K Quad 4 Zone Mini Split | 30,000 (9K+9K+9K+18K) | 23 SEER2 | Heat Pump (Works to -13°F) | WiFi Enabled |
| ROVSUN 4 Zone 35K BTU Mini Split System | 35,000 (9K+9K+9K+9K) | 19 SEER2 | Heat Pump (Operating to -13°F) | Multiple Modes, Energy Saving |
| TOSOT 36,000 BTU Quad 4 Zone Mini Split | 36,000 (9K+9K+9K+9K) | 21 SEER2 | Heat Pump (Operates to -22°F) | WiFi Ready, Energy Star |
| Cooper & Hunter 36,000 BTU 4 Zone Ceiling Cassette | 36,000 (9K+9K+9K+9K) | 23.9 SEER2 | Heat Pump (Operates to -13°F) | Quiet Operation, Installation Kits |
Content Navigation
- Della 36K BTU Quad 4 Zone Mini Split System
- COSTWAY 30K Quad 4 Zone Mini Split Air Conditioner
- ROVSUN 4 Zone 35000 BTU Mini Split AC/Heating System
- TOSOT 36,000 BTU Quad 4 Zone Mini Split with Heat Pump
- Cooper & Hunter 36,000 BTU 4 Zone Ceiling Cassette Mini Split
- Buying Guide for 4 Room Mini Split Systems
Della 36K BTU Quad 4 Zone Mini Split System
The Della 36K BTU Quad 4 Zone Mini Split provides comprehensive cooling and heating for areas up to 2,350 square feet across four rooms. It includes 4 indoor air handlers sized 9,000, 9,000, 12,000, and 18,000 BTU, each with a dedicated controller allowing you to precisely control the climate in each room. The unit is energy-efficient with a 19 SEER2 rating and features DC inverter technology that can save up to 30% on power consumption. The heat pump enables operation in temperatures as low as 5°F. Full installation kits and copper pipe linesets are included for convenience. Notably, it supports Alexa integration for smart home compatibility but lacks a functional self-cleaning operation despite having a self-cleaning button display.
COSTWAY 30K Quad 4 Zone Mini Split Air Conditioner
This COSTWAY 4 zone mini split air conditioner delivers 30,000 BTU cooling with four matching indoor units (three 9,000 BTU and one 18,000 BTU). It features an impressive 23 SEER2 energy efficiency rating and an HSPF2 rating of 10 for heating, certified by ETL and AHRI. The system uses eco-friendly R32 refrigerant and offers six operation modes including auto, cool, heat, dry, fan, and sleep, along with versatile fan speeds. Its robust heating system withstands climates as cold as -13°F. The integrated heating function for the outdoor unit chassis protects it in harsh conditions. WiFi-enabled controls allow remote operation.
ROVSUN 4 Zone 35000 BTU Mini Split AC/Heating System
The ROVSUN 35,000 BTU mini split system includes four equal capacity indoor handlers (9,000 BTU each) plus a heat pump outdoor unit. It serves multiple rooms with independent temperature controls, making it an all-in-one HVAC solution year-round. The system supports ambient temperatures down to -13°F and up to 131°F. Key features include automatic defrost, iFEEL temperature sensing, turbo mode, dehumidification, silent operation, and a 24-hour timer. Its inverter technology ensures up to 30% energy savings, and the product is certified for safety and energy performance by ETL and AHRI.
TOSOT 36,000 BTU Quad 4 Zone Mini Split with Heat Pump
The TOSOT Cosmo Series 36K BTU 4 zone mini split features four indoor units, each 9,000 BTU, providing distinct temperature control in four rooms with settings from 61°F to 86°F. It boasts a 21 SEER2 efficiency rating and a high-performance heating rating (HSPF2 of 10). This Energy Star-certified system operates reliably in extremely cold conditions down to -22°F thanks to its advanced compressor and intelligent defrost functions. It supports WiFi connectivity for remote monitoring and has options for different operational modes, making it ideal for diverse climates.
Cooper & Hunter 36,000 BTU 4 Zone Ceiling Cassette Mini Split
The Cooper & Hunter 36,000 BTU quad zone ceiling cassette mini split features whisper-quiet technology and is suitable for bedrooms, living rooms, or commercial spaces. It offers 23.9 SEER2 efficiency, certified by ETL and AHRI, and can heat spaces effectively in temperatures as low as -13°F. The system includes a 25-foot installation kit with pre-flared insulated copper lines, communication wires, and drainage extensions for a complete setup. Its ceiling cassette design provides discreet cooling and heating, making it a flexible choice for aesthetic or space-saving needs.
Buying Guide for 4 Room Mini Split Systems
BTU Capacity and Room Size
Calculate the total BTU capacity needed based on the square footage of each room. Mini splits for multiple rooms typically combine units ranging from 9,000 to 18,000 BTU per indoor air handler. Ensure the system can adequately cool and heat all rooms without oversizing or undersizing.
Energy Efficiency Ratings
Focus on products with high SEER2 (Seasonal Energy Efficiency Ratio) and HSPF2 (Heating Seasonal Performance Factor) ratings for better energy savings and lower utility bills. Energy Star certification is a reliable indicator of efficient performance.
Heating Performance and Climate Suitability
Check the operational temperature range, especially if your area experiences very cold winters. Heat pump mini splits rated to operate below -10°F or -20°F provide more reliable heating in colder climates.
Indoor Unit Types and Installation
Consider the types of indoor units (wall-mounted, ceiling cassette, or floor-mounted) that best fit your home’s layout and aesthetic preferences. Proper installation kits with copper lines and drain pipes facilitate quicker and cleaner setups.
Smart Features and Controls
WiFi-enabled mini splits with smartphone apps or voice control (e.g., Alexa compatibility) offer enhanced convenience for scheduling and remote temperature management. Multiple modes and fan speeds increase comfort customization.
Warranty and Certifications
Verify product certifications like ETL, AHRI, and UL for safety and compliance. Also, look for warranty coverage periods and service support to ensure long-term reliability and assistance.
By evaluating these key factors and selecting a high-quality mini split from trusted brands, you can effectively create individualized comfort zones for your four rooms, optimizing energy use and enhancing indoor climate control.