GREE R32 24 Review: Specs, Pros and Cons
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In this gree r32 24 review, we examine the Gree Sapphire 24K BTU 21.5 SEER unit. This wall-mounted ductless mini split heat pump delivers 24,000 BTU of cooling power. It pairs this capacity with a high 21.5 SEER rating for efficient operation. The system covers spaces between 800 and 1,300 square feet. It operates on 208/230V power and includes universal Wi-Fi connectivity via the Gree+ app. You get reliable heating down to -22 degrees Fahrenheit. This model balances strong performance with smart controls for modern homes.
What stands out
- 21.5 SEER cooling efficiency rating for reduced energy use.
- 24,000 BTU cooling capacity suitable for medium to large rooms.
- ULTRA Heating technology provides warmth in temperatures as low as -22 degrees F.
- Universal Wi-Fi connectivity allows smartphone control through the Gree+ app.
- Compact wall-mount design measures 29 inches wide by 11 inches high.
Who it fits
Good fit for
This unit suits homeowners with open-concept living areas or large single rooms between 800 and 1,300 square feet. You will appreciate the high SEER rating if you want to lower monthly electricity bills. The built-in Wi-Fi and Gree+ app make it ideal for tech-savvy users who want remote temperature adjustments. It is also a strong choice for those in colder climates needing reliable heat pump performance down to -22 degrees F without supplemental heating.
Who should skip it
You should look elsewhere if your space is smaller than 800 square feet, as this 24,000 BTU unit may short-cycle. It is not suitable for 110V circuits, requiring a 208/230V electrical setup. If you prefer a sleek white finish, note that this model comes in beige. You will also need to purchase the 1/4" x 5/8" line set separately, which adds to the initial installation complexity and effort.
Verdict: The Gree Sapphire 24K offers high efficiency and smart features for medium-sized spaces. It is a solid choice for users with compatible electrical setups who value strong cooling and heating specs.
Key specs explained for you
24,000 BTU Cooling Capacity
This rating indicates the unit removes 24,000 British Thermal Units of heat per hour. You need this capacity to cool spaces between 800 and 1,300 square feet. Choosing a unit with too low a BTU rating will leave the room warm. Selecting one with too high a capacity may cause short cycling. Match this number to your room size for steady comfort.
21.5 SEER Efficiency Rating
Seasonal Energy Efficiency Ratio measures cooling output divided by energy consumed over a typical season. A 21.5 SEER rating is considered ultra-high efficiency. You will likely see lower electricity bills compared to units with lower SEER values, such as 13 or 15 SEER. This spec helps you compare long-term operating costs against other mini split options on the market.
208/230V Voltage
This specification lists the electrical requirements for the indoor and outdoor units. You must have a dedicated 208 or 230-volt circuit installed by a licensed electrician. Standard household outlets provide 120 volts, which is insufficient for this unit. Incorrect voltage can damage the compressor. Verify your home electrical panel can support this load before installation.
Universal Wi-Fi, Gree+ app
This feature allows you to control the unit remotely via a smartphone. You can adjust temperature, schedule operation, or change modes from anywhere with an internet connection. This adds convenience for managing comfort without needing the physical remote. It enables you to pre-cool or heat a room before you arrive. Check if the app interface meets your smart home preferences.
Heat Pump
This designation means the system provides both cooling and heating functions. You do not need a separate furnace or heater for winter comfort. The unit extracts heat from outside air even in cold conditions. This dual functionality simplifies your HVAC setup. It is ideal for regions with moderate winters where you want a single system for year-round climate control.
Design and build details
The unit is a wall-mounted ductless mini split. The listing describes it as the Gree Sapphire model. It features a beige finish. This color choice helps the indoor unit blend into most interior walls. The design prioritizes a quiet and unobtrusive presence. You can place it in a home or office without it dominating the room's aesthetics.
According to the listing, the physical dimensions are specific. The indoor unit measures 29 inches in width. It stands 11 inches tall. The depth is 10 inches. These measurements define the space you need on your wall. You must ensure your mounting location can accommodate this footprint. The 11-inch height variant is one of the options available for this series. Other sizes exist, but this review focuses on the 24,000 BTU configuration.
The system operates on 208/230V power. This voltage requirement dictates the electrical circuit you need for installation. The unit includes universal Wi-Fi technology. You control it via the Gree+ app on your smartphone. This smart connectivity removes the need for constant manual adjustments. The layout keeps the controls digital and remote. You manage settings from anywhere in the room. The design supports efficient heating down to -22 degrees F. This feature ensures reliable operation in colder climates without bulky external hardware.
Setup and everyday use guide
Setting up this Gree Sapphire unit requires professional installation. You must purchase a 1/4 inch by 5/8 inch line set separately. It is not included with the system. The indoor unit mounts directly to your wall. It measures 29 inches wide, 11 inches high, and 10 inches deep. This compact footprint allows it to fit in most standard rooms. The electrical connection needs a 208 or 230-volt circuit. You should verify your home’s electrical panel can support this load before installation begins. Once installed, daily operation is straightforward. The system includes universal Wi-Fi technology. You can control the unit from any smartphone using the Gree+ app. This lets you adjust temperatures or change modes without needing to locate the physical remote. The unit handles both cooling and heating. It reaches up to 21.5 SEER in cooling mode. This high efficiency rating means it uses less energy to cool your space. In heating mode, it reaches 12.0 HSPF. The system also features Ultra Heating technology. This allows it to provide heat even when outdoor temperatures drop to -22 degrees Fahrenheit. This makes it suitable for colder climates. The beige finish helps it blend into most interior decor. You can rely on this wall-mounted unit to maintain consistent comfort in spaces between 800 and 1,300 square feet. The smart connectivity adds convenience for modern households.
Check electrical needs and line set
Before you buy this Gree Sapphire, verify your home’s electrical service. This unit requires 208/230V power. Most standard US outlets provide 110V, so you likely need a dedicated 240V circuit installed by a licensed electrician. This is a critical safety and compatibility step. You must also purchase the 1/4 inch by 5/8 inch line set separately. It is not included in the box. Plan for professional installation to ensure proper refrigerant charge and mounting. The unit operates via the Gree+ app for Wi-Fi control. Ensure your smartphone is compatible with this specific app. For upkeep, clean the washable air filters regularly to maintain that high 21.5 SEER efficiency. This model sits in the mid-range of the 1 options we cover. It offers strong heating down to -22 degrees F, unlike some competitors. Choose it if you need reliable warmth in cold climates alongside efficient cooling.
Check before you buy
- Confirm your home has a 208/230V dedicated circuit.
- Purchase a separate 1/4 x 5/8 inch line set.
- Verify smartphone compatibility with the Gree+ app.
- Plan for professional installation and mounting hardware.
The product at a glance
Gree Sapphire 24K BTU 21.5 SEER
Best for: Large rooms needing cold-weather heating
- Cooling Capacity
- 24,000 BTU
- Efficiency Rating
- 21.5 SEER
- Voltage
- 208/230V
- Coverage Area
- 800 - 1,300 ft2
- Heat Pump
- Heat Pump
- Smart Connectivity
- Universal Wi-Fi, Gree+ app
View on Amazon: Gree Sapphire 24K BTU 21.5 SEER Affiliate link
This Gree Sapphire unit delivers 24,000 BTU of cooling and heating for spaces up to 1,300 square feet. It features a high 21.5 SEER rating for efficient operation and includes universal Wi-Fi controlled via the Gree+ app. The system operates on 208/230V power and maintains warmth down to -22 degrees Fahrenheit. It is a wall-mounted solution designed for rooms within the specified size range.
Pros
- 21.5 SEER cooling efficiency rating
- 24,000 BTU cooling capacity
- Heats reliably down to -22 degrees F
- Universal Wi-Fi with Gree+ app control
Cons
- Larger 29-inch width may not fit tight wall spaces
- Requires separate purchase of 1/4 x 5/8 line set
- Only available in beige color
Good fit if
- You need heating in very cold conditions
- You want smartphone control for your HVAC
- You are cooling a large room up to 1,300 sq ft
Skip if
- You require a smaller 18,000 BTU unit
- You prefer a higher 24.5 SEER efficiency
- You need a 230V only specific voltage
Verdict: Gree Sapphire 24k BTU Mini Split offers strong cold-weather heating and high efficiency for large rooms. It suits buyers who prioritize app control and reliable warmth in freezing temperatures.
Specifications side by side
| Spec | Gree Sapphire 24K BTU 21.5 SEER |
|---|---|
| Cooling Capacity | 24,000 BTU |
| Efficiency Rating | 21.5 SEER |
| Voltage | 208/230V |
| Coverage Area | 800 - 1,300 ft2 |
| Heat Pump | Heat Pump |
| Smart Connectivity | Universal Wi-Fi, Gree+ app |
| Mounting Type | Wall Mount |
| Dimensions | 10 × 29 × 11 inches |
| Size | 24,000 BTU / 21.5 SEER |
| Color | Beige |
| Model | SAP24HP230V1R32AH/AO |
Frequently asked questions
What size room does the Gree Sapphire 24K BTU unit cool?
This model provides 24,000 BTU of cooling capacity. You need this power to effectively cool spaces between 800 and 1,300 square feet. The high efficiency rating of 21.5 SEER helps maintain comfortable temperatures in these larger areas without excessive energy use. It is designed for substantial rooms that require robust cooling performance.
Does this mini split work in freezing temperatures?
Yes, this unit is built for cold-weather heating. It is specifically noted for providing reliable warmth in freezing conditions. The heat pump function allows you to use it as your primary heating source during winter months. This makes it a practical choice for buyers in regions with harsh winters who need consistent indoor comfort.
What electrical requirements does the Gree Sapphire 24K have?
The system operates on 230V power. You must verify your home has a dedicated 208/230V circuit installed. Standard US outlets usually provide 110V, which is not compatible with this unit. A licensed electrician should install the necessary wiring to ensure safe operation and proper functionality of the mini split system.
How big is the indoor wall-mounted unit?
The indoor unit measures 29 inches in width, 11 inches in height, and 10 inches in length. It features a beige finish that helps it blend into most interior walls. The wall-mounted design saves floor space while delivering powerful air circulation. These dimensions allow for flexible placement in large rooms or open living areas.
Is the line set included with the Gree Sapphire?
No, the line set is not included. You must purchase a 1/4 inch by 5/8 inch line set separately. This component connects the indoor and outdoor units. Ensure you buy the correct size to match the system specifications. Professional installation is recommended to properly connect all parts and ensure efficient operation.
Can I control the unit with my smartphone?
Yes, this model supports app control. You can manage the unit remotely using your smartphone. This feature allows you to adjust settings and monitor performance from anywhere. The app control adds convenience for managing your home climate, especially when you are away from the house or need to make quick adjustments.