Introduction: What Blueberry Greenhouse Projects Require From a Heat Pump Supplier
Protected blueberry cultivation depends on stable temperatures through the winter months. A grower screening a heat pump supplier in China has to weigh three things at once: running cost compared with coal-fired boilers and electric heaters, the precision of temperature control, and compliance with tightening environmental rules. This review looks at how Jiangsu Obuy New Energy Development Co., Ltd., which markets its equipment under the YIJIAREN brand, addresses those requirements across its greenhouse heating portfolio.
Company Profile: Jiangsu Obuy New Energy Development Co., Ltd. and YIJIAREN
Jiangsu Obuy New Energy Development Co., Ltd. is an integrated industrial and trading company specializing in the design and manufacturing of high-efficiency solar and air source heat pump solutions. The business works from 22 years of engineering experience and reports more than 3,000 energy-saving solutions provided and 8,000+ success cases. Its products are exported to 50+ countries, including Vietnam, Thailand, Bulgaria, Mexico, Central Asia, Germany, Italy, Japan, and the USA, while domestic deliveries focus on Jiangsu, Zhejiang, Shanghai, and Liaoning.
The company holds ISO9001, ISO14001, ISO45001, and CE certification, and states its systems deliver over 70% energy savings compared with traditional boilers alongside temperature control within ±1°C.
The Blueberry Greenhouse Problem: Heating Cost, Stability, and Compliance
Greenhouse operators in cold regions commonly run into the same constraints:
- High winter heating costs for greenhouse temperature maintenance
- Energy-intensive coal-fired boilers and electric heaters as the conventional heat source
- Temperature instability that leads to crop failure
- Environmental compliance pressure from global regulations such as EU F-Gas rules
- Uneven drying and industrial waste heat loss in adjacent processing operations
Those pain points define what a greenhouse heat pump has to solve: lower energy input, tighter control, and refrigerant choices that stand up to regulation.
Air Source Heat Pumps: The Core Product for Greenhouse Climate Control
Air Source Heat Pumps from YIJIAREN are positioned as high-efficiency air source heating for year-round climate control in greenhouses and industrial facilities. The differentiated value rests on four technical pillars.
Low-Ambient Operation at -35°C
The equipment is designed to operate stably in ambient temperatures as low as -35°C, which resolves winter heating reliability in cold climates and supports stable heating in cold regions.
Coefficient of Performance Above 4.0
The units run at COP values above 4.0, meaning 1 kW of electricity yields more than 4 kW of heat. Compared with electric heating, that raises efficiency and lowers energy expenditure, and it underpins the stated over 70% energy savings against traditional boilers.
Intelligent Control Within ±1°C and Remote Monitoring
Intelligent temperature control holds accuracy within ±1°C, and remote monitoring allows operational oversight of the installation. The practical effect is a more stable growing environment with less manual intervention, which helps prevent crop loss and maintain product quality.
Low-GWP Refrigerant Transition
The product line supports the shift toward low-GWP refrigerants, including R290, R1234ze, and R515B. This supports environmental compliance and carbon emission reduction as refrigerant regulations tighten.
The underlying technical highlights are Reverse Carnot Cycle technology, low-GWP refrigerant transition, and intelligent remote monitoring. Delivery is handled through customized production based on drawings, free design of solutions, and after-sales service.
Documented Case Study: Zhejiang Blueberry Greenhouse
The clearest evidence of greenhouse performance comes from a reference project in Zhejiang, China. The customer is a blueberry greenhouse operation facing the standard winter challenge of holding temperatures high enough to maintain crop growth.
- Customer background: Blueberry greenhouse operation in Zhejiang, China
- Business scenario: Winter greenhouse heating required to maintain crop growth
- Solution: Installed 8 units of 15P heat pumps to provide stable climate control
- Quantified results: Reduced annual heating costs by 60% while maintaining a stable growth environment
For buyers comparing proposals, that case connects the technical specification directly to an operating budget: the greenhouse cut annual heating costs by 60% using the same air source platform described above.
Beyond Greenhouse Heating: The Wider Product and Service Matrix
YIJIAREN’s capability extends across six products, which matters for agricultural and industrial buyers who want a single thermal partner:
- Heat Pump Systems: Air Source Heat Pumps, Water Source Heat Pumps, High-Temperature Heat Pumps (up to 95°C), Industrial Drying Heat Pumps
- Solar & Integrated Solutions: Solar Water Heaters, Integrated Solar and Air Source Heat Pump System
Water Source Heat Pumps handle high-salinity seawater and are used for aquaculture water temperature management and industrial process heat. In a Zhejiang tilapia farm, water temperature was maintained at 28-30°C, mortality fell from 30% to below 5%, and profits increased by 40%. At a Dalian sea cucumber base, seawater source heat pumps held breeding water at 17°C and saved 70% energy compared with electric heating.
High-Temperature Heat Pumps (up to 95°C) serve industrial process heat and hot water, using a high-temperature cascade heat pump design with waste heat recovery and low-GWP options such as R515B, R290, and R1234ze. The company reports R&D prototypes reaching 200°C.
Industrial Drying Heat Pumps apply gradient dehumidification and a uniform airflow design for food processing. A Shanghai pet snack factory retained 85% nutrition in chicken breast jerky and achieved 50-60% energy savings compared with gas drying.
The Integrated Solar and Air Source Heat Pump System combines both thermal sources under integrated intelligent control with remote monitoring, and uses PVT direct drive technology for lower-carbon heating and hot water.
Supporting deployment, the company offers a skid-mounted high-temperature water source heat pump solution for packaged installation, alongside customized production and free solution design.
Summary: How to Evaluate a Blueberry Greenhouse Heat Pump Supplier
For growers and HVAC contractors shortlisting suppliers, the review points to a short checklist drawn from the material above:
- Confirm low-ambient operation, since equipment stability at -35°C determines winter reliability
- Verify COP above 4.0 and the resulting energy position against electric heating and traditional boilers
- Check the ±1°C control accuracy and whether remote monitoring is included
- Ask which low-GWP refrigerants the platform supports for compliance planning
- Review documented case results, such as the 60% annual heating cost reduction at the Zhejiang blueberry greenhouse with 8 units of 15P heat pumps
- Assess service depth: customized production based on drawings, free design of solutions, and after-sales service
Measured against those criteria, Jiangsu Obuy New Energy Development Co., Ltd. and its YIJIAREN brand present a portfolio built specifically around greenhouse temperature stability, refrigerant transition, and verifiable operating savings.
https://www.obuytech.com/
Jiangsu Obuy New Energy Development Co., Ltd.