Next-Generation R290 Natural Refrigerants, Full DC Inverter EVI Technology & Decarbonization Solutions for Global HVAC Distributors & OEM/ODM Partners
Explore our premier line of R290 Propane, R32 DC Inverter, and Geothermal Heat Pump systems designed for zero-carbon heating, domestic hot water (DHW), and commercial cooling applications worldwide.
The international Heating, Ventilation, and Air Conditioning (HVAC) sector is experiencing an unprecedented structural transformation driven by stringent global environmental mandates. Central to this paradigm shift is the aggressive phase-down of synthetic fluorinated greenhouse gases (F-gases) such as R410A and R32, mandated under the revised EU F-Gas Regulation (EU 2024/573) and the international Kigali Amendment to the Montreal Protocol.
China has solidified its position as the premier manufacturing powerhouse and innovation hub for low-GWP natural refrigerant technology. Top Chinese original equipment manufacturers (OEMs) and original design manufacturers (ODMs) have made extensive capital investments in automated production infrastructure, specialized explosion-proof (ATEX-compliant) testing laboratories, and microchannel heat exchanger engineering to lead the global supply chain.
R290 (Pure Hydrocarbon Propane) is not merely a compliant replacement for legacy refrigerants; it is thermodynamically superior. Owing to its favorable volumetric refrigerating capacity and high latent heat of vaporization (approximately 2.5 times higher than R410A), R290 requires up to 40% to 60% less refrigerant charge mass for identical thermal output capacities.
As an A3 safety group refrigerant, R290 requires rigorous physical separation of electrical components. Top Chinese exporters integrate hermetically sealed control boxes, spark-free brushless DC fan motors, and leak-proof microchannel exchangers.
Enhanced Vapor Injection (EVI) technology expands the operating envelope of scroll and rotary compressors. This allows high-temperature radiator heating up to 85°C even when ambient outdoor temperatures plunge to -25°C.
Because R290 systems can easily achieve supply water temperatures above 75°C without activating auxiliary electric heaters, legacy fossil fuel boilers can be directly replaced without tearing out existing radiator networks.
| Performance Metric | R290 (Propane) | R32 (Difluoromethane) | R410A (HFC Blend) | R744 (CO2) |
|---|---|---|---|---|
| Global Warming Potential (GWP) | 3 | 675 | 2088 | 1 |
| Ozone Depletion Potential (ODP) | 0 | 0 | 0 | 0 |
| ASHRAE Safety Class | A3 (Highly Flammable) | A2L (Mildly Flammable) | A1 (Non-Flammable) | A1 (Non-Flammable) |
| Max Flow Temperature | 75°C - 85°C | 60°C - 65°C | 55°C - 60°C | 80°C - 90°C (Transcritical) |
| Relative Charge Amount | ~45% (Ultra Light) | 100% (Baseline) | 110% | 130% (High Pressure) |
| ERP Seasonal Efficiency (SCOP) | A+++ (SCOP > 4.9) | A+++ / A++ (SCOP ~ 4.5) | A++ (SCOP ~ 3.8) | A++ (Application Dependent) |
Guangdong Retro Pumps Co., Ltd. is a professional technology enterprise specializing in the research, development, manufacturing, and sales of advanced heat pump systems. The company is dedicated to creating sustainable and eco-friendly living environments by delivering energy-efficient, intelligent, and low-carbon heating and cooling solutions to global customers.
Founded in 2022 and headquartered in Foshan, Guangdong Province, Retro Pumps has rapidly developed into a modern and innovative manufacturer. The company is equipped with state-of-the-art facilities, including advanced water system laboratories, environmental simulation testing rooms, pilot production workshops, electrical assembly lines, and comprehensive supporting production units. These facilities ensure strict quality control and continuous product innovation.
Retro Pumps is driven by a highly experienced leadership team whose members come from Fortune 500 companies and leading enterprises in the HVAC and renewable energy industries. With strong technical expertise and access to extensive industry resources, the company maintains a solid foundation for technological advancement and sustainable growth.
The company places great emphasis on research and innovation, continuously investing in new technologies such as inverter-driven systems, smart control solutions, and environmentally friendly refrigerants. Its product portfolio includes residential, commercial, and industrial heat pump systems designed to meet diverse climate and application needs.
As a professional heat pump supplier and service provider, Retro Pumps is committed to delivering low-carbon, intelligent, and high-efficiency products while building long-term partnerships with customers worldwide.
To collaboratively create eco-friendly living environments and contribute to a greener, more sustainable future through innovative thermal energy solutions.
Innovation, Quality, Sustainability, and Customer-Centric Service.
By combining cutting-edge technology with a strong commitment to environmental responsibility, Guangdong Retro Pumps Co., Ltd. strives to become a trusted global brand in the heat pump industry.
Deploying R290 Propane Heat Pumps across distinct global regions requires customized system engineering to account for local hydronic setups, power grids, and climatic extremes. Leading Chinese exporters provide modular configurations engineered for these precise scenarios:
In countries like Germany, Poland, and the UK, old housing stock relies heavily on high-temperature cast-iron or steel panel radiators. Chinese R290 EVI monoblocks supply 75°C flow temperatures without immersion heaters, allowing seamless plug-and-play gas boiler replacement.
For extreme sub-zero regions in Scandinavia, dual-source hybrid systems combining ground-source loops with R290 air-to-water units ensure optimal SCOP even during prolonged -30°C winter conditions, operating continuously with zero performance drop-off.
In Mediterranean regions where summer cooling is as vital as winter space heating, R290 Full DC Inverter units switch dynamically between underfloor heating, fan coil unit (FCU) active cooling, and year-round domestic hot water (DHW) production.
Evaluating heat pump manufacturers in China requires looking beyond initial price points. Tier-1 manufacturers and exporters distinguish themselves through advanced testing facilities, strict supply chain selection, and full regulatory compliance documentation.
Ensure your manufacturing partner holds accredited certifications: CE, CB, KEYMARK, SG Ready, EN14511, EN14825, and ISO9001/14001. KEYMARK certification is strictly mandatory for end-customers to qualify for European government subsidies (such as BAFA in Germany or Grant Schemes in France).
High-reliability R290 units depend on premium tier-1 components: Highly efficient Panasonic or Mitsubishi inverter compressors, WILO or Grundfos A-class DC water pumps, SWEP plate heat exchangers, and CAREL or Tuya smart IoT controllers with remote diagnostics.
Because R290 requires special safety protocols, verified manufacturers operate certified enthalpy laboratories equipped with real-time hydrocarbon gas detection, anti-spark exhaust systems, and simulated outdoor ambient chambers capable of testing from -35°C to +52°C.
Modern end-users demand mobile app integration, Modbus RS485 connectivity for Smart Home Management Systems (HMS), and SG-Ready inputs to allow dynamic energy storage pairing with local solar PV arrays.
Browse additional high-performance solutions including commercial pool heat pumps, geothermal source units, and versatile split inverter heat pumps designed for international export.
Retro Pumps
