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Tongyi heat pumps use R32 and R290 to reduce their environmental impact. (GWP)

Tongyi’s new R290 is better for the environment than R32, as it has a smaller impact on climate change and does not contribute to ozone depletion. This refrigerant  is also in line with new regulations in specific regions of the world. For instance, R32 will be phased-out in the medium term in Europe.

However, it is important to note that R290 is a flammable refrigerant, while R32 is not. This means that R32 heat pumps are safer to use in homes and businesses.

Overall, R290 is the better refrigerant for the environment, but R32 is the safer refrigerant to use.

Which refrigerant is best for you will depend on your individual needs and preferences. If you are looking for the most environmentally friendly option, then R290 is the better choice. However, if you are concerned about safety, then R32 is the better option.

It is also important to note that both R32 and R290 are considered to be low-impact refrigerants. They are both significantly better for the environment than traditional refrigerants such as R410A.

Tongyi heat pumps offer a variety of heat pumps that use both R32 and R290 refrigerants. You can choose the refrigerant that is best for you based on your individual needs and preferences.


Discover the unique advantages that set us apart.


Reaching as low as 35dB(A), Silent Mode creates a tranquil atmosphere.

IoT (Internet of Things)

IoT Technology facilitates the remote monitoring and analysis of the heat pump’s status.

Twin Rotary

A Twin Rotary DC Inverter compressor results in a 30% reduction in energy consumption compared to traditional scroll compressors.

Smart Defrost

Tongyi has achieved the development of intelligent defrost processes, aimed at optimising the management of defrosting cycles in air-to-water heat pumps.

24/7 Remote Service

Benefit from round-the-clock remote service support, ensuring assistance whenever you need it, day or night.

Lead Time

Experience rapid deliveries with our swift lead time service, ensuring your needs are met promptly and efficiently.

DC Inverter EVI Tech

DC Inverter EVI Technology effectively reduces power consumption and improves the heating capacity of heat pump units to ensure stable performance even at ambient temperatures as low as -25°C.

Smart Control • Wifi

Experience a unique convenience with Tongyi Heat Pump’s smart control feature.


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Welcome to Tongyi’s blog! We specialize in Air-to-Water heat pumps. Stay updated on HVAC and renewable energy innovations and join us in creating a greener future.

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