GREE 24 or GREE R32 42? Which GREE Model to Buy
As an Amazon Associate we earn from qualifying purchases. Links on this page are affiliate links.
The gree 24 vs r32 42 comparison helps you choose between two distinct multi-zone mini split systems. Both units share a 21 SEER2 efficiency rating and operate on 208/230V power. They both use G10 inverter technology for steady temperature control and quiet operation. The main difference lies in capacity and zone configuration. One offers tri-zone cooling with R410A refrigerant, while the other provides dual-zone performance using newer R32 refrigerant. You must decide which layout fits your home.
Key differences
| Aspect | Gree Multi21+ Tri-Zone 24k BTU | Gree 42K BTU Dual-Zone Wall Mount |
|---|---|---|
| Cooling Capacity | 24,000 BTU | 42,000 BTU |
| Number of Zones | Tri-Zone (9K+9K+18K) | Dual-Zone (9K+18K) |
| Refrigerant Type | R410A | R32 |
| Coverage Area | Not listed | 1,400 - 2,300 ft2 |
| Efficiency Rating | 21 SEER2 | 21 SEER2 |
Which one should you choose?
Choose Gree Multi21+ Tri-Zone 24k BTU if
- You need to cool three separate rooms with varying capacities.
- You prefer a system with a longer historical track record using R410A refrigerant.
- Your total cooling load is around 24,000 BTU.
Choose Gree 42K BTU Dual-Zone Wall Mount if
- You want to heat and cool two larger zones efficiently.
- You prefer modern R32 refrigerant for better environmental impact.
- Your space requires up to 42,000 BTU of cooling power.
Verdict: Choose the tri-zone 24k model if you need to control three distinct areas with smaller individual units. Pick the dual-zone 42k model if you have two larger rooms that require higher total capacity. Both offer identical efficiency, so your decision rests on zone count and total BTU needs.
Comparing Gree Multi-Zone Specs
Number of Zones
The Gree Multi21+ Tri-Zone 24k BTU supports three separate zones. You get two 9,000 BTU indoor units and one 18,000 BTU unit. This setup allows independent temperature control in three distinct rooms. The Gree 42K BTU Dual-Zone system supports only two zones. It includes one 9,000 BTU unit and one 18,000 BTU unit. If you need to manage temperatures in three different spaces, the tri-zone model offers more flexibility. The dual-zone unit is simpler but covers fewer areas. This difference affects how you layout your indoor units.
Cooling Capacity
Total cooling capacity differs significantly between these two models. The tri-zone system provides 24,000 BTU of total cooling power. This is distributed across its three indoor heads. The dual-zone system offers 42,000 BTU of total cooling. This higher capacity is split between its two indoor heads. The 42,000 BTU unit is designed for larger open spaces or homes requiring more aggressive cooling. The 24,000 BTU unit is better suited for smaller, divided spaces. You must match the total BTU to your home's square footage needs.
Efficiency Rating
Both units share the same efficiency rating. The Gree Multi21+ Tri-Zone 24k BTU has a 21 SEER2 rating. The Gree 42K BTU Dual-Zone also has a 21 SEER2 rating. This means both systems convert electricity to cooling with equal efficiency. You will not save money on energy bills by choosing one over the other based on SEER alone. Both use G10 inverter technology to maintain steady temperatures. This technology reduces energy waste by adjusting compressor speed rather than cycling on and off. Efficiency is a tie between these two models.
Refrigerant Type
The refrigerant type is a key environmental and performance difference. The tri-zone 24k BTU unit uses R410A refrigerant. This is a standard refrigerant in many existing systems. The dual-zone 42k BTU unit uses R32 refrigerant. R32 is more environmentally friendly and has a lower global warming potential. It also offers better heat transfer properties, which can improve efficiency in certain conditions. If you are concerned about environmental impact or future refrigerant regulations, the R32 model is the modern choice. This is a clear advantage for the dual-zone unit.
Coverage Area
The dual-zone 42k BTU unit specifies a coverage area of 1,400 to 2,300 square feet. This data helps you determine if the unit is powerful enough for your home. The tri-zone 24k BTU model does not list a specific square footage range in the provided data. However, its lower total BTU suggests it is intended for smaller spaces. If you have a large home exceeding 1,400 square feet, the 42k BTU unit is likely necessary. For smaller homes or apartments, the 24k BTU unit may be sufficient. You should verify your square footage before deciding.
Voltage Compatibility
Both units operate on 208/230V power. The tri-zone model lists 208/230V in its key specs. The dual-zone model also lists 208/230V. Both attributes confirm 230V operation. This means you need the same electrical setup for either unit. You will likely need a dedicated circuit breaker for each system. There is no difference in electrical requirements between these two models. Your electrical panel must support the amperage draw for the chosen unit. Check with a licensed HVAC contractor to ensure your home wiring is adequate for either choice.
Which GREE model fits your home
You need to control three separate rooms
This tri-zone system includes two 9,000 BTU units and one 18,000 BTU indoor unit. It lets you set different temperatures in three distinct areas. You get independent comfort for each space without needing distribution boxes. This setup is ideal if you have three rooms that require separate climate management.
You want to cool a larger area
With 42,000 BTU of cooling capacity, this dual-zone unit covers spaces between 1,400 and 2,300 square feet. It pairs a 9,000 BTU unit with an 18,000 BTU unit. This higher capacity handles larger open areas or rooms with higher heat loads more effectively than the smaller 24,000 BTU option.
You prefer eco-friendly R32 refrigerant
This model uses R32 refrigerant, which is considered more environmentally friendly than the R410A used in the other unit. Both systems share the same 21 SEER2 efficiency and G10 inverter technology. If reducing environmental impact is a priority for your HVAC upgrade, the R32 variant offers that specific advantage.
The products compared
Gree Multi21+ Tri-Zone 24k BTU
Best for: Cooling three rooms with one outdoor unit
- Cooling Capacity
- 24,000 BTU
- Efficiency Rating
- 21 SEER
- Voltage
- 208/230V
- Number of Zones
- Tri-Zone
- Heat Pump
- Heat Pump
- Smart Connectivity
- Wi-Fi (optional kit sold separately)
View on Amazon: Gree Multi21+ Tri-Zone 24k BTU Affiliate link
This Gree Multi21+ system delivers 24,000 BTU of cooling across three separate zones. It uses a G10 inverter compressor and R410A refrigerant to maintain steady temperatures. The unit operates on 208/230V power and achieves a 21 SEER efficiency rating. You get independent control over two 9K and one 18K indoor units. Wi-Fi control is available via a separate field-installed kit.
Pros
- Tri-zone configuration for 9K, 9K, and 18K indoor units
- 21 SEER efficiency rating with G10 inverter technology
- 5-year parts and 7-year compressor warranty
- R410A refrigerant for eco-friendly operation
Cons
- Wi-Fi kit is sold separately and not included
- Requires 1/4" x 3/8" and 1/4" x 5/8" line sets
- Lacks built-in smart connectivity without add-on kit
Good fit if
- You need to cool three distinct rooms with one outdoor unit
- You want high efficiency with a 21 SEER rating
- You prefer R410A refrigerant systems
Skip if
- You require built-in Wi-Fi without purchasing extra accessories
- You only need to cool a single room
- You are looking for a dual-zone configuration
Verdict: Gree 24K BTU Tri-Zone Mini Split is ideal for homeowners who need to manage three separate zones with high efficiency. It suits those willing to buy a Wi-Fi kit separately for remote control capabilities.
Gree 42K BTU Dual-Zone Wall Mount
Best for: large spaces needing dual-zone control
- Cooling Capacity
- 42,000 BTU
- Efficiency Rating
- 21 SEER
- Voltage
- 208/230V
- Coverage Area
- 1,400 - 2,300 ft2
- Number of Zones
- Dual-Zone
- Heat Pump
- Heat Pump
View on Amazon: Gree 42K BTU Dual-Zone Wall Mount Affiliate link
This Gree R32 42,000 BTU dual-zone mini split handles 1,400 to 2,300 square feet. It uses a G10 inverter compressor for steady temperatures and efficient SEER 21 performance. The system cools and heats two separate zones without distribution boxes. You can add Wi-Fi control via a separate accessory. It runs on 208/230V power. This unit suits larger open spaces needing robust cooling.
Pros
- 42,000 BTU cooling capacity for large areas
- SEER 21 efficiency rating reduces energy use
- Dual-zone design controls two rooms independently
- G10 inverter compressor ensures steady temperatures
Cons
- Wi-Fi kit is sold separately
- Requires 208/230V electrical connection
- Line sets are not included
Good fit if
- You need to cool a large 1,400+ square foot space
- You want to control two zones separately
- You have a 208/230V electrical setup
Skip if
- You need smart connectivity out of the box
- You only have a standard 115V outlet
- You are cooling a small single room
Verdict: Gree R32 42k BTU Dual-Zone delivers high capacity and efficiency for large dual-zone setups. It fits buyers who need serious cooling power and do not mind buying the Wi-Fi kit separately.
Specifications side by side
| Spec | Gree Multi21+ Tri-Zone 24k BTU | Gree 42K BTU Dual-Zone Wall Mount |
|---|---|---|
| Cooling Capacity | 24,000 BTU | 42,000 BTU |
| Efficiency Rating | 21 SEER | 21 SEER |
| Voltage | 208/230V | 208/230V |
| Coverage Area | not stated | 1,400 - 2,300 ft2 |
| Number of Zones | Tri-Zone | Dual-Zone |
| Heat Pump | Heat Pump | Heat Pump |
| Smart Connectivity | Wi-Fi (optional kit sold separately) | Wi-Fi kit accessory (sold separately) |
| Width | 38.6 inches | not stated |
| Height | 31.1 inches | not stated |
| Size | 24,000 BTU / 9K, 9K, 18K | 42,000 BTU / 9K, 18K |
| Color | White | not stated |
| Model | MULTI24CVIR302 | MULTI42CLIV202 |
Frequently asked questions
Can the Gree 24k tri-zone cool three rooms at once?
Yes. The B0744YPB53 model supports three separate zones simultaneously. It includes two 9,000 BTU indoor units and one 18,000 BTU unit. You can control the temperature in each room independently. This setup allows for customized comfort across three distinct areas using a single outdoor condenser.
Does the Gree 42k dual-zone unit fit large spaces?
Yes. The B07452PVHC model delivers 42,000 total BTUs. It splits this capacity into a 9,000 BTU unit and an 18,000 BTU unit. This high output suits larger dual-zone configurations. It provides serious cooling power for spaces that require more capacity than standard single-zone systems.
Is the Gree 24k tri-zone system energy efficient?
Yes. The B0744YPB53 model has a 21 SEER2 efficiency rating. It operates on 230V power. This high rating indicates strong energy performance for a multi-zone setup. It helps manage operating costs while maintaining consistent temperatures across three different zones in your home.
What is the difference in zone count between the two models?
The B0744YPB53 supports three zones, while the B07452PVHC supports two. The tri-zone model allows independent control in three rooms. The dual-zone model limits you to two separate areas. Choose the tri-zone option if you need to manage three distinct spaces with one outdoor unit.
Do I need to buy a Wi-Fi kit separately?
Yes. Both the B0744YPB53 and B07452PVHC models require a separate purchase for remote control capabilities. Neither unit includes built-in Wi-Fi connectivity in the provided data. You must acquire the Wi-Fi kit independently to enable smartphone or remote app management for either system.
What are the indoor unit sizes for the Gree 24k?
The B0744YPB53 includes two 9,000 BTU units and one 18,000 BTU unit. This combination totals 24,000 BTUs. The layout allows flexibility in placement. You can position the smaller units in bedrooms and the larger one in a living area for balanced cooling.
What voltage do these Gree mini splits require?
Both units operate on 230V power. The B0744YPB53 and B07452PVHC share this electrical requirement. Ensure your home has the appropriate 230V circuit installed. This standard voltage supports the inverter technology and high BTU output needed for efficient multi-zone cooling performance.