Our History
Hangzhou Hangning Thermal Energy Technology Co., Ltd. is rooted in a deep and extensive foundation of heat pump technology. Since 2009, the company has embarked on a journey of technological breakthroughs and market expansion, establishing itself as one of China's earliest enterprises dedicated to the R&D and application of compressors specifically designed for heat pump water heaters. In August 2009, in collaboration with Shanghai Hitachi, the company successfully developed China'sa first heat pump water heater unit utilizing a dedicated heat pump compressor-making it the first manufacturer in China to adopt such specialized components. That same year, the company signed a comprehensive strategic partnership agreement with AFIS of South Korea, simultaneously laying the groundwork for its presence in both domestic and international markets. Between 2009 and 2010, the company's residential and light commercial products rapidly obtained national CCC certification, EU CE certification, and certification from the Korea Refrigeration and Air Conditioning Industry Association. These products subsequently entered markets in South Korea, France, Southeast Asia, and Europe, marking the successful launch of the company's global expansion strategy. In 2010, the company secured a patent for a new type of heat pump water heater; its commercial units obtained the national Industrial Product Production License; mass production of low-temperature jet-enthalpy heat pump units commenced; and a new generation of "three-in-one" heat pump units was launched globally.
From 2011 to 2017, the company exported its low-temperature "three-in-one" heat pump units to Russia and launched specialized heat pump units for heating applications. Its "three-in-one" heat pump technology was awarded a national patent, and the company successfully won the bid for a residential development project in the Yunnan High-tech Development Zone. During this period, "Hangning International" was registered in Hong Kong; mass production of products designed for the "Coal-to-Electricity" conversion initiative was achieved; and Hangzhou Hangning Environmental Technology Co., Ltd. was formally established, propelling the enterprise onto a fast track of large-scale, brand-driven growth. From 2020 to the present, the company has continued to drive innovation and achieve breakthroughs. In 2020, it pioneered the world's first "four-in-one" specialized air conditioning system for low-temperature grain storage silos. In 2022, it became the first domestic enterprise to develop an intelligent environmental control system for fruits and vegetables, enabling precise temperature regulation and early harvesting for crops such as blueberries. In 2023, the company launched photovoltaic direct-heating heat pump units to support national "Dual Carbon" goals. In 2024, it released a full series of AI-powered, hot-fluorine defrosting units specifically designed for cold storage facilities, utilizing AI algorithms to achieve precise temperature control and "seamless" defrosting. By 2025, the company's heat pump and refrigeration units are projected to maintain a steady export volume to Southeast Asia and other global markets. Over the course of sixteen years of development, the company has evolved from a manufacturer of single-product heat pumps into a comprehensive provider of refrigeration and heat pump solutions, spanning diverse sectors including residential, commercial, industrial, agricultural, and warehousing applications. Upholding the philosophy of "Integrity, Pragmatism, and Efficiency"-with technological innovation at its core and premium quality as its foundation-the company continues to create value for its customers, employees, and society.
Our Factory
The company's Deqing production base is situated in close proximity to Hangzhou Xiaoshan Airport and a national-level bonded logistics center, while also being conveniently located near the ports of Ningbo-Zhoushan and Shanghai Yangshan. Benefiting from a comprehensive network of air, land, and sea transportation, the facility ensures highly efficient and convenient logistics and distribution, setting industry-leading standards for both raw material procurement and finished product shipment. Spanning a vast area, the factory complex is meticulously planned to house modern standard production workshops, high-end R&D laboratories, product performance testing centers, and intelligent warehousing facilities. With a total built-up area exceeding 10,000 square meters, the base achieves fully integrated operations encompassing R&D, manufacturing, testing, and warehousing.The production base strictly adheres to modern manufacturing standards and employs a standardized production management model. The facility features a scientifically and rationally designed layout, with distinct zones allocated for raw material storage, component processing, complete unit assembly, aging testing, and finished product dispatch. These zones are seamlessly interconnected, ensuring a highly efficient and fluid production workflow.
The company has established a comprehensive product performance laboratory-certified by the Hefei General Machinery Research Institute-capable of simulating various operating conditions, including extreme temperatures, humidity levels, and extended runtimes. This enables rigorous testing, such as 72-hour continuous aging tests, energy efficiency assessments, and stability evaluations, thereby ensuring product quality is strictly controlled at the source. Upholding a philosophy of green manufacturing, the factory is equipped with advanced environmental treatment systems to ensure that all industrial wastewater and exhaust emissions meet regulatory standards, thereby creating a modern production base characterized by energy efficiency, low carbon emissions, and environmental sustainability. Furthermore, the factory has implemented a robust safety management system, supported by a professional safety management team and comprehensive protective equipment. Through regular safety training and emergency drills, the facility safeguards the well-being of its workforce and ensures the stable operation of production machinery, providing a solid foundation of hardware infrastructure and environmental assurance for the mass production of high-quality products.
Our Product
The company is deeply committed to the R&D of heat pump and refrigeration technologies, cultivating a high-end product matrix that is comprehensive in both category and application scenarios. This matrix covers the full spectrum of requirements across residential, commercial, industrial, agricultural, and warehousing sectors. Featuring a complete range of core product series with industry-leading performance, the company effectively meets the diverse, personalized, and customized needs of various clients.
Heat Pump Hot Water Series:
This series includes residential heat pump water heaters, light commercial and heavy-duty commercial heat pump hot water units, solar-assisted heat pump units, specialized units for swimming pools, and dedicated units for seafood storage applications. Utilizing specialized heat pump compressors, these units boast high energy efficiency ratios and stable operation, making them ideal for hot water supply in settings such as homes, hotels, swimming pools, and aquaculture facilities.
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Heat Pump Heating & Central Air Conditioning Series:
This category encompasses air-cooled heat pump central air conditioning units (providing both cooling and heating), dedicated heat pump units for underfloor heating systems, low-temperature jet-enthalpy heat pump units, and "3-in-1" integrated units (combining cooling, heating, and hot water supply)-including low-temperature jet-enthalpy variants. Designed to adapt to the low-temperature environments of northern regions, these units are highly energy-efficient and effectively meet the heating and cooling demands of residential buildings, commercial complexes, and office towers.
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Specialized Refrigeration Series for Warehousing:
Featuring the world's first "4-in-1" specialized air conditioning system for grain silos, as well as a full range of cold storage units equipped with AI-driven hot-gas defrosting technology. The grain silo units enable low-temperature grain storage, thereby safeguarding grain quality; meanwhile, the AI-enabled cold storage units utilize intelligent algorithms to achieve precise temperature control, seamless "invisible" defrosting, and full-lifecycle intelligent management-making them suitable for grain storage, cold chain logistics, food freezing, and similar applications.
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Intelligent Environmental Control Series for Agriculture:
This series features intelligent environmental control systems for fruits and vegetables. Specifically designed for the cultivation of crops such as blueberries, these systems enable precise control over temperature and humidity, facilitate early dormancy induction, and allow for advanced harvesting-thereby boosting agricultural yields and product quality while driving the intelligent modernization of farming practices.
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Green & Energy-Saving Innovation Series:
This category includes photovoltaic (PV) direct-heating heat pump units, which harness solar energy for direct heating applications to achieve zero-energy operation-aligning perfectly with national "Dual Carbon" strategic goals. Also featured are specialized "Coal-to-Electricity" heat pump units, designed to replace traditional coal-fired heating systems with clean, eco-friendly alternatives, making them ideal for rural revitalization initiatives and clean energy transition projects. All products are designed using 3D simulation technology, featuring exquisite craftsmanship, professional manufacturing, and premium quality. Possessing advantages such as energy efficiency, environmental friendliness, intelligence, and stability, they lead the technological development direction of the industry.
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Product Application
Leveraging core strengths such as high efficiency, energy conservation, stability, reliability, intelligence, and precision, our company's products span six major application sectors: residential housing, commercial buildings, industrial production, agricultural cultivation, warehousing and logistics, and public facilities. They comprehensively address the cooling, heating, hot water, and environmental control requirements of diverse industries, demonstrating exceptional market adaptability.
**Residential Housing:** Our product line-including household heat pump water heaters, heat pump heating units, and central air conditioning systems-is widely deployed in residential communities, villas, and apartments. These solutions provide families with comfortable heating, ample hot water, and effective cooling, thereby creating a low-carbon, eco-friendly living environment. Having successfully secured contracts for major projects-such as residential developments within the Yunnan High-tech Development Zone-our products have earned high acclaim from end-users.
**Commercial Buildings:** Our commercial heat pump water heating units, central air conditioning systems, and "three-in-one" heat pump units are ideally suited for venues such as hotels, shopping malls, office buildings, schools, and hospitals. They effectively meet the demands for large-scale hot water supply as well as central cooling and heating. By ensuring high efficiency and energy conservation, these systems reduce operational costs while significantly enhancing the comfort levels of commercial spaces.
**Industrial Production:** Our industrial refrigeration units and ultra-low-temperature heat pump units are utilized across sectors such as food processing, chemical manufacturing, electronics, and mechanical engineering. They provide essential process cooling and ensure stable low-temperature environments, thereby guaranteeing the stability of industrial production workflows and enhancing product quality.
**Agricultural Cultivation:** Our intelligent environmental control systems for fruits and vegetables focus specifically on the cultivation of high-value cash crops-such as blueberries, vegetables, and flowers. These systems enable intelligent environmental regulation within greenhouses by precisely controlling temperature and humidity. This facilitates early crop dormancy and harvesting, boosts both the yield and quality of agricultural produce, and actively contributes to the intelligent modernization of the agricultural sector.
**Warehousing and Logistics:** Our specialized air conditioning units for grain silos and AI-driven hot-fluorine defrosting refrigeration units are designed for use in grain storage facilities, cold-chain logistics warehouses, food freezing depots, and pharmaceutical cold storage sites. These solutions facilitate low-temperature grain storage, food preservation, and temperature-controlled pharmaceutical storage, thereby safeguarding the quality and safety of stored goods while extending their storage lifespan. Public Facilities and Clean Energy Sector: "Coal-to-Electricity" heat pump units and photovoltaic-assisted direct-heating heat pumps are deployed in rural heating retrofits and the clean energy substitution for public buildings, thereby aligning with the national "Dual Carbon" strategy and fostering green, low-carbon development. Additionally, specialized units for seafood preservation and swimming pools are tailored to unique environments-such as aquaculture facilities and indoor swimming complexes-to meet specific professional requirements for refrigeration and hot water supply.
Our Certificate
The company places paramount importance on technological innovation and quality control, having established a comprehensive Total Quality Management system. We have successively obtained numerous authoritative certifications-both domestic and international-and hold multiple national technology patents. Our product quality and technical capabilities have garnered global recognition, while our extensive portfolio of certifications and honors serves as a testament to our core corporate competitiveness.
International Authoritative Certifications
A selection of our products has successfully obtained EU CE certification, passed EU EN 14511 testing and certification, and received certification issued by the Korea Refrigeration and Air Conditioning Association. Furthermore, having successfully passed a factory site audit conducted by the French firm FCD, we have secured international market access qualifications, thereby enabling our products to successfully enter high-end markets such as those in Europe and South Korea.
Domestic Authoritative Certifications
Our residential and light commercial product series have passed the national CCC mandatory certification, while our commercial units have obtained the national *Production License for Industrial Products*. We have also achieved ISO 9001 Quality Management System certification. Additionally, our comprehensive product performance laboratory has passed testing and certification by the Hefei General Machinery Research Institute, and the company has been honored with numerous industry accolades, including the certificate for a "China Heat Pump Demonstration Base.
National Patented Technologies
In 2010, we were granted a patent for a novel heat pump water heater (Patent No. ZL 200920063957.5). In 2012, our "Heat Pump 3-in-1" unit received national patent certification. We have pioneered numerous innovative technologies-including the world's first "4-in-1" specialized air conditioning system for low-temperature grain storage silos, China's first intelligent environmental control system for fruits and vegetables, photovoltaic direct-heating heat pump units, and specialized cold storage units featuring AI-driven hot-fluorine defrosting-thereby filling technological gaps within the industry and establishing our own independent intellectual property rights.
Factory Audit Certifications
In 2014 and 2016, we successfully passed the second and third factory audits conducted by the Korea Refrigeration and Air Conditioning Association. Our entire operational workflow-encompassing production management, product quality, and technological R&D-fully complies with international standards, establishing us as a trusted, high-quality supplier for international clients. These numerous certifications and patented technologies serve to validate the company's technological leadership and product reliability within the field of heat pump refrigeration, providing a solid foundation for our global sales and market expansion efforts.
Production Equipment
To ensure the mass production of high-quality products and the successful implementation of technological innovations, the company has equipped itself with industry-leading, end-to-end production and testing facilities. We have introduced high-precision, intelligent, and automated manufacturing infrastructure covering every stage of production-from component processing and complete unit assembly to performance testing and aging trials-positioning our equipment sophistication and production capacity at the forefront of the industry.
**R&D and Design Equipment:**
We are equipped with professional 3D simulation design systems, CAD/CAM software, and performance simulation testing platforms. All projects utilize 3D simulation design to precisely optimize product structures, thereby accelerating the development speed and enhancing the quality of both main units and their ancillary components. This approach shortens R&D cycles and guarantees the structural soundness and technological advancement of our product designs.
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**Component Processing Equipment:**
We have introduced automated processing machinery-including high-precision CNC cutting machines, CNC bending machines, automatic stamping presses, and laser welding machines-to achieve the precise fabrication of core components such as sheet metal parts and structural elements. With processing tolerances reaching the micron level, we ensure component consistency and interchangeability, thereby enhancing the overall assembly precision of our products.
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**Complete Unit Assembly Equipment:**
We employ automated assembly lines, intelligent tightening tools, and vacuum leak detection systems to facilitate the standardized, assembly-line production of heat pump units and refrigeration systems. This approach minimizes human error, boosts assembly efficiency, and enhances product stability; furthermore, our vacuum leak detection systems ensure that every unit is leak-free, thereby guaranteeing operational safety.
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**Performance Testing Equipment:**
We operate a comprehensive product performance laboratory-certified by the Hefei General Machinery Research Institute-equipped with high/low-temperature environmental simulation chambers, energy efficiency analyzers, long-duration aging testers, noise meters, and voltage fluctuation testing equipment. This facility allows us to simulate extreme environments ranging from -30°C to +50°C and subject products to rigorous evaluations-including 72-hour continuous operation tests, energy efficiency assessments, noise measurements, and stability checks-to ensure that every product leaving our factory meets the highest quality standards.
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**Intelligent Warehousing and Logistics Equipment:**
We have implemented intelligent automated storage systems and logistics management platforms to facilitate the smart storage, sorting, and retrieval of both raw materials and finished goods. This infrastructure optimizes logistics efficiency and ensures the rapid fulfillment of orders. By combining our advanced production and testing facilities with standardized production management protocols, we guarantee the consistent quality and exceptional performance of our products, effectively meeting the demands of global clients for both high-volume and high-quality orders.
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Production Market
The company implements a global competitive strategy, adhering to diversified market expansion models-including "going global while inviting in" and collaborating with trading companies-to construct a worldwide sales network and service system. Its products are exported to numerous countries and regions across Europe, South Korea, Southeast Asia, Oceania, South America, and South Africa. The company has gradually evolved into a global manufacturing hub for heat pump and refrigeration systems, as well as one of Europe's key manufacturing bases, achieving remarkable performance in both domestic and international markets.
**Domestic Market:**
The company's products comprehensively cover every province and city nationwide. It has deeply penetrated sectors such as residential housing, commercial applications, "coal-to-electricity" conversion projects, agriculture, and warehousing. Notable achievements include securing bids for major key projects-such as the residential series in the Yunnan High-tech Development Zone-and the mass deployment of "coal-to-electricity" product series in rural clean energy renovation initiatives. Furthermore, intelligent environmental control units for fruits and vegetables are driving the development of modern agriculture, while specialized air conditioning systems for grain silos now cover national grain reserve depots. With a steadily rising domestic market share, the company has established itself as a renowned brand within China's heat pump and refrigeration industry, earning widespread acclaim from domestic clients.
**International Market:**
The company entered the South Korean market in 2009, followed by France and the broader European market in 2010. By participating in major trade shows-such as the Bangkok International Air-conditioning, Heating, and Refrigeration Exhibition in Thailand and the Mostra Convegno Expocomfort (MCE) in Milan, Italy-it rapidly opened up markets across Southeast Asia and Europe. In 2011, its low-temperature "three-in-one" heat pump units were exported to Russia. By 2025, the company's heat pump products and refrigeration units had achieved stable and widespread export to Southeast Asian markets, while gradually expanding into emerging markets such as Oceania, South America, and South Africa. Leveraging high-end product quality and superior service, the company has earned high recognition from international clients. With export volumes increasing year by year, it has become a key player in the global heat pump and refrigeration market, proudly taking its place among the leading international export enterprises.
**Industry Performance:**
As a leader in heat pump technology, the company has pioneered the development of numerous innovative products, filling technological gaps within the industry. It has earned prestigious honors-such as being designated a "China Heat Pump Demonstration Base"-and has actively participated in the formulation of multiple industry standards, thereby driving technological upgrades across the sector. By integrating resources throughout the industrial chain to enhance market competitiveness, the company has cumulatively served over 10,000 clients worldwide. It has established numerous benchmark projects that serve as industry exemplars, continuously enhancing its market reputation and brand influence.
Our service
The company upholds the service philosophy of being **"faster, more standardized, and more comprehensive,"** establishing a **full-process, one-stop, and intelligent** service system. This system spans the entire product lifecycle-including pre-sales consultation, solution design, in-sales follow-up, installation and commissioning, after-sales maintenance, and technical upgrades-providing customers with comprehensive assurance and creating lasting value through professional, efficient, and attentive service.
**Pre-sales Services:**
We have assembled a professional technical consulting team with extensive experience in the heat pump and refrigeration industry. This team offers customers complimentary services such as technical consultation, on-site surveys, needs analysis, and customized solution design. Based on the customer's specific application scenarios, facility area, and requirements, we tailor highly efficient, energy-saving, and cost-effective refrigeration and heat pump solutions. We provide detailed product specifications, solution quotations, and project timelines, while simultaneously furnishing product brochures, case studies, and certification documents to ensure customers gain a comprehensive understanding of our products and services, enabling them to make precise choices regarding the most suitable equipment.
**In-sales Services:**
We have established a dedicated project tracking mechanism that provides real-time monitoring throughout the entire process-from order confirmation, production scheduling, and quality inspection to logistics and delivery-keeping customers promptly informed of production progress. We maintain strict control over the product manufacturing and inspection stages to ensure that product quality meets all standards. We employ a professional logistics team to guarantee the safe and punctual delivery of products to their intended destinations. Furthermore, we provide on-site installation guidance services; our professional installation team performs on-site equipment commissioning to ensure proper unit operation, while simultaneously conducting operational training to ensure customers become proficient in equipment usage and routine maintenance techniques.
**After-sales Services:**
We have established a unified national after-sales service hotline and an online service platform to ensure a rapid, 24/7 response capability. Upon receiving a repair request, we provide on-site service to domestic customers within 24 hours, and our team arrives at remote locations within 48 hours, ensuring that technical faults are resolved quickly and efficiently. We have implemented a comprehensive product warranty system that strictly adheres to national "Three Guarantees" policies, offering free repairs and component replacements during the warranty period. Beyond the warranty period, we provide maintenance services at cost price, conducting regular customer follow-ups, equipment inspections, and preventive maintenance to extend the operational lifespan of the equipment. For high-end products-such as our AI-enabled intelligent units-we offer advanced smart services including remote monitoring, fault pre-warning systems, and software upgrades, allowing us to monitor equipment operational status in real-time and proactively identify and address potential hazards. At the same time, we continuously provide technical support and training services, regularly update product technical documentation, and conduct technical exchange sessions to assist customers in enhancing their equipment management and operations and maintenance capabilities, thereby ensuring a worry-free after-sales experience.