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Best Selling Vacuum Tube Split Solar Hot Water Systems
US$100.00-1,000.00
1 Set
Product profile
Customization
AvailableAfter-sales Service
ProvidedWarranty
5 YearsMax. Capacity
>200LStructure
Separate TypePressure
PressurizedInterior Material
EnamelCollector Components
Glass Vacuum TubeComposition
Tank InsulationCertification
CE, ISO9001, CCC, RoHS, CB, SASOTransport Package
Carton BoxTrademark
Tianxu or OEMOrigin
ChinaHS Code
841919Production Capacity
50000pieces/YearKey features
5-Year Warranty: Comprehensive 5-year warranty coverage for peace of mind.
Cold Climate Solution: 50/50 propylene glycol mixture prevents freezing in very cold climates.
Automatic Backup Heating: Electric or gas backup element activates automatically when solar energy is insufficient.
Multiple Capacity Options: Available in 150L to 1000L vertical pressurized tank capacities.
Premium Material Construction: SUS304 inner tank with enamel coating and high borosilicate glass vacuum tubes.
Full Certification Compliance: Certified by CE, ISO9001, CCC, RoHS, CB, and SASO standards.
OEM/ODM Customization: OEM and ODM services available for customized product requirements.
Large Scale Manufacturing: Produced by Tianxu, a leading manufacturer with advanced production lines.
Company profile
CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2003-09-01 CertifiedNearest Port: Qingdao PortAverage Response Time: ≤24h CertifiedTerms of Payment: LC, T/T, D/P, etc.
AI-Powered supplier vetting
SummaryShandong Longguang Tianxu Solar Energy Co., Ltd. is a China-based limited company established in 2002, with 406 employees and a large manufacturing site in Shandong. The supplier develops and manufactures solar water heaters, solar vacuum tubes, high-borosilicate glass tubes, heat pumps, photovoltaic products, and energy-storage systems. Evidence indicates substantial production infrastructure, including more than 10 production lines, 10 electric furnaces, 70 solar vacuum tube lines, and 3 solar water heater lines. It reports ISO9001:2015 and ISO14001:2015 certification, 72 R&D engineers, 50 quality-control staff, and cooperation involving Tsinghua-related organizations. Export activity is significant, with 71%–90% of sales reportedly from exports and markets including Southeast Asia and the Middle East. However, the provided information does not substantiate after-sales processes, customer case studies, customized manufacturing procedures, or financial reliability.
Supplier typeThe supplier is identified as a limited company based in Zhucheng, Weifang, Shandong, China, while one record categorizes it as a trade company. Its described activities and product range show substantial manufacturing involvement in solar thermal, glass, heat-pump, photovoltaic, and energy-storage products.
CertificationsThe supplier reports ISO9001:2015 and ISO14001:2015 certificates, along with other unspecified certifications. These explicitly support quality-management and environmental-management system credentials, although the unspecified certifications cannot be assessed further.
R&D capabilityThe supplier reports 72 R&D engineers, involvement with Beijing Tsinghua Industrial Development Institute and Beijing Tsinghua Solar Co., Ltd., advanced solar vacuum tube production lines, and work across solar heating, cooling, desalination, heat pumps, and photovoltaic systems. It also states that it drafted a national standard for 3.3 high-borosilicate glass, providing explicit evidence of R&D and technical-development capability.
Production capacityProduction capacity is supported by 406 employees, a 133,340 m² manufacturing plant, more than 10 production lines, 10 electric furnaces, 70 solar vacuum tube lines, and 3 solar water heater lines. The supplier also reports annual production of one million tons of high-borosilicate glass and 16 million solar vacuum tubes, plus lead times within 15 workdays in both off-peak and peak seasons.
Product Q&A
Q:How does the system work in cold climates?
A:
It uses a 50/50 propylene glycol and water mixture in the collectors to prevent freezing, making it ideal for very cold climates.
Q:What happens if there is not enough sunlight?
A:
An electric or gas backup element will be automatically switched on by the controller to ensure water heating.
Q:What is the warranty period?
A:
The product comes with a 5-year warranty.
Q:What materials are used for the inner tank?
A:
The inner tank is made of SUS304 stainless steel with an enamel coating for durability and corrosion resistance.
Q:What certifications does the product have?
A:
The system is certified by CE, ISO9001, CCC, RoHS, CB, and SASO.
Send Inquiry
*To:Shandong Longguang Tianxu Solar Energy Co., Ltd.
Shandong Longguang Tianxu Solar Energy Co., Ltd.*Content:
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