6 Best 36,000 BTU Multi-Zone Mini-Split Systems of 2026
We compared six 36,000 BTU multi-zone mini split heat pumps on head layout, efficiency, cold-weather heating, controls and warranty.
By Daniel Brooks
Updated October 20, 2026
A 36,000 BTU multi-zone mini split is a 3 ton outdoor unit, enough to run four small heads, three mixed heads or two large ones. It is the most common size for a whole small house or a full floor. Our list of the best 36,000 BTU multi-zone mini-split systems compares six systems on head layout, efficiency, cold-weather heating, controls and warranty. To browse every model we cover, visit our Multi-Zone Mini-Split Air Conditioners page.
Systems in this class split the same capacity in very different ways, so start with the number and size of the rooms you need to cover.
All Products Compared
| Product | Best For | Zones | Capacity | Efficiency | Heating |
|---|---|---|---|---|---|
| TOSOT Cosmo 36,000 BTU 4 Zone Mini Split | Overall | 4 (9,000 BTU each) | 36,000 BTU | 21 SEER2, 10 HSPF2 | -22F to 118F range |
| Cooper & Hunter 36,000 BTU 3-Zone Wall Mount Mini Split | Premium | 3 (9,000 + 9,000 + 18,000 BTU) | 36,000 BTU | 24 SEER2 | Heat pump |
| TURBRO Greenland 36,000 BTU 4 Zone Mini Split | Value | 4 (9K x 3 + 12K) | 36,000 BTU | 22.5 SEER2 | Down to -13F |
| DELLA 36K BTU 2-Zone Soft Airflow Mini Split AC | Great room + bedroom | 2 (12,000 + 24,000 BTU) | 36,000 BTU | 25 SEER2 | Down to -22F |
| Daikin 36,000 BTU 4-Zone Mini Split | Long warranty | 4 (9K BTU each) | 36,000 BTU | 20 SEER2, 9.5 HSPF2 | 5F to 59.9F heating |
| SIMOE 36,000 BTU Dual 2 Zone Mini Split | Two zones | 2 (12,000 + 24,000 BTU) | 36,000 BTU | 23 SEER2, 10 HSPF2 | -13F to 125F range |
| Award | Product | WikiCooling Score About WikiCooling ScoreThe WikiCooling Score is our own rating from 0 to 10, based on the criteria described on our How We Review page. It reflects research, not laboratory measurement, and is never influenced by manufacturers, retailers, or affiliate commissions. Learn more › | |
|---|---|---|---|
TOSOT Cosmo 36,000 BTU 4 Zone Mini Split
|
8.6/10 | Buy | |
| Best Premium |
Cooper & Hunter 36,000 BTU 3-Zone Wall Mount Mini
|
9.4/10 | Buy |
| Best Overall |
TURBRO Greenland 36,000 BTU 4 Zone Mini Split
|
9.4/10 | Buy |
| Best Value |
DELLA 36K BTU 2-Zone Soft Airflow Mini Split AC
|
9.4/10 | Buy |
Daikin 36,000 BTU 4-Zone Mini Split
|
Buy | ||
| Best Budget |
SIMOE 36,000 BTU Dual 2 Zone Mini Split
|
9.4/10 | Buy |
TOSOT Cosmo 36,000 BTU 4 Zone Mini Split
Individual Temp. Control: Manage temperatures in four spaces using one 36,000 BTU outdoor unit with four 9,000 BTU indoor units; customize temperatures from 61-86℉ and select different modes for each room to meet varying needs Cost Saving: With a rating of 21 SEER2 and 10 HSPF2, the TOSOT Cosmo series multizone system saves up to 24% on energy costs compared to conventional units rated at 16 SEER2; Energy Star-certified and eligible for federal tax rebate Extreme Weather Resilience: Features an advanced compressor; operates in ambient temperatures from -22℉ to 118℉; performs well year-round in hot states like Arizona or cold regions like Michigan; intelligent defrost function enhances heating efficiency
Cooper & Hunter 36,000 BTU 3-Zone Wall Mount Mini
Cooper & Hunter 36,000 BTU Multi Zone Outdoor Condenser 24 SEER2, 230V, with (3) Wall Mounted Indoor Units 9,000 + 9,000 + 18,000 BTU. Smart Kit included to control the system from your smartphone. Comfort Where You Need It Most - Multi-zone ductless mini split system lets you independently control temperatures in multiple rooms while using a single high-efficiency outdoor condenser. Lower Energy Bills Year-Round - Advanced inverter heat pump technology delivers powerful cooling and heating with 24 SEER2 efficiency, designed to reduce long-term energy consumption.
TURBRO Greenland 36,000 BTU 4 Zone Mini Split
Kindly Note: Every set may arrive in up to 9 separate boxes and may be delivered at Different Times.Please ensure All Packages have arrived before scheduling installation. Powerful Heating and Cooling: The TURBRO Greenland mini split uses advanced inverter technology for efficient operation at temperatures as high as 131°F during cooling and as low as -13°F during heating. Achieve rapid cooling in 30 seconds and efficient heating in 60 seconds. Lower Electricity Bill: The TURBRO Greenland mini split AC has a SEER2 rating (DOE New Efficiency Standard of 2023) of 22.5, a measure of energy efficiency. This high rating means the unit can cool your home using less energy, resulting in an estimated cooling season electricity bill of just $215.84. Additionally, the high SEER2 rating means that the unit qualifies for federal tax credits, which could further reduce your tax bill.
DELLA 36K BTU 2-Zone Soft Airflow Mini Split AC
[25 SEER2 ENERGY-SAVING] Della 2 Zone 36000 BTU/h, 208-230V, ETL and AHRI certified, pre-charged air conditioner unit features a ductless mini split inverter plus system with a heat pump and DC Inverter technology, providing up to 40% power savings. (This model does not support the self cleaning function. The option will still show on the display after pressing the self cleaning button, the self cleaning operation will not be performed.) [SOFT AIRFLOW & QUIET]: Designed with soft, indirect airflow, this unit prevents harsh direct drafts by distributing air evenly throughout the room. It ensures a comfortable environment ideal for long term use without discomfort. In Mute Mode, it operates at a whisper quiet 30dB, the perfect companion for light sleepers and nurseries, ensuring your rest remains undisturbed. [MULTIPLE-ZONE CONTROL & COVERAGE] Featuring 2 indoor units (12,000 BTU + 24,000 BTU) paired with a single outdoor condenser, this system delivers robust cooling and heating for up to 2050 Sq.Ft (one recommended for 550 Sq. Ft, and one for 1500 Sq. Ft). Each unit includes an independent remote, allowing you to customize temperatures for specific rooms like bedrooms or offices to maximize energy efficiency.
Daikin 36,000 BTU 4-Zone Mini Split
Daikin, a global leader in HVAC innovation for over 90 years, offers some of the most advanced and aesthetically designed air conditioning and heating systems on the market. The Daikin Multi-Split Heat Pump Air Conditioner features the 4MXM-A Series R32 pre-charged outdoor condenser and (4) FTXV Series wall-mounted indoor fan coils, delivering exceptional energy efficiency with a 20 SEER2 rating, making it ideal for multi-zone applications. This Wi-Fi-enabled system works exclusively with the Daikin One Home app, allowing for convenient remote control and monitoring. It offers multiple modes such as Auto, Cool, Dry, Heat, and Fan Only, along with timer settings and adjustable airflow for personalized comfort. The eco-friendly R32 refrigerant reduces power consumption and minimizes environmental impact, while ECONO Operation, Powerful Operation Mode, and quiet operation ensure optimal efficiency and comfort. The package includes all necessary components for installation, Maxwell installation kit, communication cables, and an outdoor wall bracket, ensuring a hassle-free setup. 12-Year warranty is included, must be installed by an HVAC-certified technician.
SIMOE 36,000 BTU Dual 2 Zone Mini Split
Versatile Modes & Customizable Comfort: Featuring 6 operational modes (auto/cool/heat/dry/fan/sleep) and 5 adjustable wind speeds (auto/low/mid/high/strong), this ductless system adapts to diverse needs. Additional features like auto swing, temperature-sensing "feeling" mode, and health-focused settings enhance daily comfort and convenience.Refrigerant GWP: 675 Multi-Room Cooling Solution: Engineered to provide consistent cooling across every corner of your home, this 36,000 BTU 2-zone mini split air conditioner (12,000 BTU + 24,000 BTU) enables independent temperature regulation for customized comfort in each room. The outdoor unit’s built-in chassis heating function ensures reliable operation in extreme climates, with a robust temperature range of -13°F to 125°F. Smart Control & Flexible Scheduling: Manage your AC remotely via smartphone or the included digital remote, allowing real-time adjustments and performance monitoring from anywhere. The 24-hour timer lets you pre-program cooling schedules to align with your routine, ensuring efficient climate control without effort.
Top 3 36,000 BTU Multi-Zone Mini-Split Systems Reviewed
#1 TOSOT Cosmo 36,000 BTU 4 Zone Mini Split: Best Overall
Why We Picked It
The TOSOT Cosmo 36,000 BTU 4 Zone is our top 3 ton system. Four 9,000 BTU heads cover four bedrooms or offices, it is ENERGY STAR certified with 21 SEER2, and it works down to -22F.
TOSOT’s Cosmo four-zone kit runs four 9,000 BTU indoor units from one 36,000 BTU outdoor unit, with each room set to its own mode and temperature from 61 to 86F. It is rated 21 SEER2 and 10 HSPF2 with ENERGY STAR certification and is eligible for federal tax rebates. The compressor works in ambient temperatures from -22F to 118F, and intelligent defrost keeps heating efficient in cold weather. The Gree+ app and voice control are supported, a 16.4-foot copper pipe set is included, and it has a 4.5 average from 9 ratings.
Key Specifications
- Total Capacity: 36,000 BTU
- Indoor Units: 4 x 9,000 BTU
- Efficiency: 21 SEER2, 10 HSPF2
- Operating Range: -22F to 118F
- Controls: Gree+ app, voice
- Certification: ENERGY STAR
| Pros | Cons |
|---|---|
|
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Things to Consider
All four heads are 9000 BTU class, so a large living room may need more. The power cord is not included, and TOSOT recommends a professional install.
Best For
This system is best for four bedrooms or offices in a cold climate.
Check the current price and availability of the TOSOT Cosmo 36,000 BTU 4 Zone Mini Split on Amazon.
#2 Cooper & Hunter 36,000 BTU 3-Zone Wall Mount Mini Split: Best Premium Pick
Why We Picked It
Cooper & Hunter’s 36,000 BTU 3-Zone is the premium pick, with a 5.0 average from 12 ratings, 24 SEER2 efficiency, a smart kit for each head and a practical 9,000, 9,000 and 18,000 BTU layout.
Cooper & Hunter’s 36,000 BTU three-zone system mixes two 9,000 BTU heads with one 18,000 BTU head on a 24 SEER2 condenser, a layout that fits two bedrooms and a living room well. Three smart kits and three 25FT installation kits are included, each kit with an insulated copper line set, 25FT communication cable and 16FT drainage extension, and the outdoor unit is pre-charged with R-454B. The indoor units are rated at 26 dB, the condenser is a 3 ton unit, and the system has a 5.0 average from 12 ratings.
Key Specifications
- Total Capacity: 36,000 BTU (3 tons)
- Indoor Units: 9,000 + 9,000 + 18,000 BTU
- Efficiency: 24 SEER2
- Noise Level: 26 dB indoor
- Controls: App, remote, voice
- Line Sets: Three 25FT kits
| Pros | Cons |
|---|---|
|
|
Things to Consider
The kit ships by freight and the outdoor unit and heads together are heavy, so plan for delivery help. A licensed technician is required for the install.
Best For
This system is best for two bedrooms plus a living room on one floor.
Check the current price and availability of the Cooper & Hunter 36,000 BTU 3-Zone Wall Mount Mini Split on Amazon.
#3 TURBRO Greenland 36,000 BTU 4 Zone Mini Split: Best Value
Why We Picked It
TURBRO’s Greenland 36,000 BTU 4 Zone is the lowest-priced system in this guide, with four heads, 22.5 SEER2, heating down to -13F and a five-year limited warranty.
TURBRO’s Greenland four-zone system runs three 9K heads and one 12K head from a 36,000 BTU outdoor unit rated 22.5 SEER2, and it is priced well below most four-zone kits. The inverter heat pump keeps heating down to -13F and cools at outdoor temperatures up to 131F, with cooling in about 30 seconds and heating in about 60 seconds. App and remote control are included, R454B is the refrigerant, and the warranty is listed as 5 years limited. It has a 5.0 average from 1 rating.
Key Specifications
- Total Capacity: 36,000 BTU
- Indoor Units: 9K x 3 + 12K
- Efficiency: 22.5 SEER2
- Heating: Down to -13F
- Cooling: Up to 131F outdoors
- Warranty: 5 years limited
| Pros | Cons |
|---|---|
|
|
Things to Consider
Each set may arrive in up to 9 separate boxes on different days. Wait until all of them arrive before you schedule the installer.
Best For
This system is best for four rooms on a budget in a mixed or cold climate.
Check the current price and availability of the TURBRO Greenland 36,000 BTU 4 Zone Mini Split on Amazon.
Other Models Worth Considering
DELLA 36K BTU 2-Zone Soft Airflow Mini Split AC. A 12,000 BTU and a 24,000 BTU soft-airflow head on a 25 SEER2 condenser, heating down to -22F and coverage up to 2050 Sq.Ft.
Daikin 36,000 BTU 4-Zone Mini Split. Four 9K BTU heads on a Daikin 4MXM36 condenser, 20 SEER2, 22 dB indoor sound and a 12-year warranty.
SIMOE 36,000 BTU Dual 2 Zone Mini Split. A 12,000 BTU and a 24,000 BTU head on 36,000 BTU, 23 SEER2, ENERGY STAR and a -13F to 125F range.
What to Expect from 36,000 BTU Multi-Zone Mini-Split Systems
A 3 ton multi-zone system can carry a small home or a full floor. Expect a large outdoor unit, one line set per head, a dedicated 230 volt circuit and app or remote control in each room.
Head layout matters as much as total capacity. Four small heads suit bedrooms, while two large heads suit open living spaces.
For more options, see our guides to 4-zone mini-split air conditioners and 3-ton multi-zone mini-splits. The product cards show the current price for each system.
How to Choose a 36,000 BTU Multi-Zone Mini-Split System
Size Each Indoor Unit to Its Room
ENERGY STAR publishes this general guide for sizing a room air conditioner by floor area. Use it for each room, then pick the indoor head closest to that room’s need:
| Room Size (sq ft) | Cooling Capacity (BTU/hr) |
|---|---|
| 100 to 150 | 5,000 |
| 150 to 250 | 6,000 |
| 250 to 300 | 7,000 |
| 300 to 350 | 8,000 |
| 350 to 400 | 9,000 |
| 400 to 450 | 10,000 |
| 450 to 550 | 12,000 |
| 550 to 700 | 14,000 |
| 700 to 1,000 | 18,000 |
Reduce capacity by 10 percent for a heavily shaded room, increase it by 10 percent for a very sunny room, add 600 BTU for each regular occupant beyond two, and add 4,000 BTU if the unit cools a kitchen. Source: ENERGY STAR.
Choose the Layout Before the Brand
Four 9,000 BTU heads, three mixed heads or a 12,000 BTU plus 24,000 BTU pair all add up to 36,000 BTU. Match the layout to your rooms first.
Match the Heat Pump to Your Winters
Check the lowest outdoor temperature each system is rated to heat at. Standard models stop around -4F or 5F, while cold-climate systems keep running to -13F or even -22F. If the mini split will be your main heat source in a northern state, pay for the better rating.
Plan for Professional Installation
Almost every multi-zone system needs a licensed technician to mount the heads, run each line set, pull a vacuum and open the valves, and several brands tie the warranty to a professional install. Get an installation quote before you buy, because labor for several zones can rival the price of the equipment.
Compare Warranties and Support
Coverage ranges from 1 or 2 year terms on budget kits to 7, 10 or 12 years on compressors from established brands. Register the system after installation, keep the installer’s paperwork and check whether labor is covered.
How We Evaluate 36,000 BTU Multi-Zone Mini-Split Systems
We rank multi-zone mini splits on manufacturer specifications, listing details and aggregated buyer ratings. For this list we kept only complete systems sold with one outdoor condenser and all indoor heads, and excluded bundles of separate single-zone units, condenser-only and indoor-only listings, open-box units and listings with too little data. We weighed track record, efficiency, heating range and how well the head sizes match real rooms first, then compared noise, controls, included line sets, installation needs and warranty.
Frequently Asked Questions
How many square feet does a 36,000 BTU multi-zone system cover?
Della lists its 36K BTU two-zone kit for up to 2050 Sq.Ft.
Is 36,000 BTU the same as 3 tons?
Yes. Cooper & Hunter, Della and others list their 36,000 BTU systems as 3 tons.
Which 36,000 BTU system has the longest warranty?
Daikin lists a 12-year manufacturer warranty on its four-zone model.
Which works best in cold weather?
TOSOT’s four-zone kit is listed down to -22F, as is Della’s 36K BTU two-zone kit.
Final Verdict
The TOSOT Cosmo 36,000 BTU 4 Zone Mini Split is the best 36,000 BTU multi-zone mini-split system for most homes. For a premium build and a 5.0 average from 12 ratings, choose the Cooper & Hunter 36,000 BTU 3-Zone Wall Mount Mini Split. For the best value, the TURBRO Greenland 36,000 BTU 4 Zone Mini Split is the pick.
About the author
Daniel Brooks is a home cooling editor at WikiCooling, covering window, portable, through-the-wall and mini-split air conditioners, fans, and dehumidifiers. He researches cooling capacity, energy efficiency, noise levels, installation requirements, and buyer feedback to help homeowners choose the right unit for their room size, climate, and budget.