R32 heat pump has become a leading refrigerant solution that is efficient in carrying heat in modern air conditioning and heating systems. Our big dream of enjoying sustainable living with renewable energy that is efficient, easy to use, and able to protect the environment is slowly becoming a reality.
R32 has a lower liquid density compared to older refrigerants, meaning less refrigerant charge is required in the system. This characteristic helps reduce operating costs while maintaining high performance in heat pump applications.
People today are increasingly looking for heat pump systems that are efficient and economical. Conventional air conditioning systems have been used for decades, but they often require high energy consumption to achieve the desired cooling or heating effect. As a result, a large amount of residual energy is wasted, increasing operational costs and contributing to environmental pollution.
When you switch to a cooling and heating system using R32 refrigerant, you take one step closer to protecting both your property and the environment in a more effective way.
In addition, during the evaporation process, the R32 heat pump absorbs a significant amount of heat, allowing the system to achieve a higher Coefficient of Performance (COP). Because R32 requires greater heat during evaporation, the mass flow rate per unit is lower, which contributes to higher efficiency and improved system performance. This means energy consumption can be reduced while maintaining stable heating or cooling output.
Another advantage of the R32 heat pump is its ability to ensure consistent and reliable performance across the entire system. With installation and maintenance processes that are not overly complicated, users can enjoy comfortable indoor conditions throughout the year with peace of mind.
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How the R32 Heat Pump Refrigerant Works
Not everyone is familiar with the R32 code printed on heat pump products. When you find the R32 code on a unit, it indicates that the heat pump uses R32 refrigerant. R32 heat pumps have become increasingly popular because they can replace older refrigerants with high Global Warming Potential (GWP).
R32 is part of the hydrofluorocarbon (HFC) family and is recognized for its improved environmental profile compared to conventional refrigerants. Its GWP is significantly lower, making it a more responsible choice for modern HVAC systems.
An R32 heat pump operates by circulating refrigerant between indoor and outdoor units. The system absorbs heat from the surrounding air and transfers it efficiently to the desired space or releases it outdoors, depending on operating mode. This simple yet effective process allows the heat pump to provide stable cooling and heating for residential, commercial, and light industrial buildings.
Why Do Many People Choose R32 Heat Pump?
One of the main reasons people choose R32 heat pumps is the lower GWP compared to previous refrigerants such as R410A. Although R32 is classified as mildly flammable, its application is well understood by HVAC professionals and can be safely managed through proper system design, installation, and maintenance.
R32 heat pump technology represents a major step forward in energy efficiency and system effectiveness. Many users have experienced high electricity costs when relying on traditional air conditioning systems, especially during long summers or in regions with fluctuating climate conditions. These systems often require longer start-up times and experience unstable performance.
In contrast, R32 heat pumps respond faster when switched on and maintain stable output during operation. This results in a more comfortable indoor environment and more predictable energy usage.
The initial goal behind the development of R32 refrigerant was to reduce carbon emissions and promote healthier environmental conditions. By improving thermal efficiency and reducing energy consumption, R32 heat pumps contribute to a more sustainable future.
R32 Heat Pump Efficiency and Performance Data
To support the efficiency claims, below is a performance overview based on common operating conditions (A7/W35), covering popular capacity ranges:
R32 Heat Pump Performance Overview
| Capacity | Heating Output | Input Power | COP (A7/W35) |
|---|---|---|---|
| 5 kW Heat Pump | 5.0 kW | 1.11 kW | 4.50 |
| 6 kW Heat Pump | 6.0 kW | 1.36 kW | 4.42 |
| 9 kW Heat Pump | 9.0 kW | 2.02 kW | 4.46 |
| 16 kW Heat Pump | 16.0 kW | 3.53 kW | 4.53 |
These figures demonstrate that R32 heat pumps are capable of delivering high heating output while maintaining relatively low power input, resulting in strong COP values across different capacities.
R32 Refrigerant Comparison
To better understand the advantage of R32, here is a simplified comparison with older refrigerants: R32 vs Traditional R410A Refrigerants.
| Parameter | R32 | R410A |
|---|---|---|
| Global Warming Potential (GWP) | 675 | 2088 |
| Refrigerant Charge Required | Lower | Higher |
| Energy Efficiency | Higher | Standard |
| COP Potential | Higher | Moderate |
| Environmental Impact | Lower | Higher |
The lower GWP and reduced refrigerant charge requirements make R32 a preferred option for modern heat pump systems that aim to meet stricter environmental regulations.
Safety Considerations of R32 Heat Pumps
Technicians who frequently work with R32 heat pumps will inform users that R32 refrigerant is mildly flammable. This information is shared not to cause concern, but to ensure awareness and proper safety handling. Professional installers are trained to implement safety measures during installation and maintenance, ensuring reliable long-term operation.
Manufacturers also provide detailed specifications and guidelines to help users understand the system’s features, safety classifications, and operational limits based on each model.
Choosing an R32 Heat Pump Manufacturer
When searching online, you will find many R32 heat pump manufacturers promoting design, performance, and innovation. While marketing claims vary, only a limited number of manufacturers focus consistently on long-term environmental improvement and global market standards.
Some manufacturers offer OEM and ODM services to support product development and technological innovation. This approach allows heat pump technology to evolve while maintaining quality and performance consistency across different markets.
Legom’s R32 Heat Pump Technology
Legom is a heat pump manufacturer that focuses on technology-driven innovation. With experience supplying HVAC components to partners in more than 90 countries and collaborating with over 400 partners worldwide, Legom contributes to the development of efficient and reliable heating solutions.
Legom’s HVAC systems utilize high-efficiency full DC inverter compressors combined with DC brushless fan motors. This configuration allows capacity modulation from approximately 20% to 120%, enabling the system to adapt intelligently to real-time load demands. As a result, energy consumption is minimized while maintaining optimal system performance.
The integration of eco-friendly R32 refrigerant further enhances sustainability. With a GWP of just 675—approximately 32% of R410A—R32 reduces environmental impact while improving economic efficiency through lower refrigerant charge requirements. Its strong heat absorption characteristics during evaporation contribute to higher COP values, supporting stable performance and reduced energy consumption.
For users seeking an efficient, environmentally responsible heating and cooling solution, R32 heat pump technology represents a practical and forward-looking choice.
Last technical review: 5 February 2026