What certifications does the product have?

The product is certified under ISO9001 and CCC standards.

What is the operating principle of this system?

It operates based on the thermosiphon principle, utilizing temperature differences between cold and hot water.

Does the system support electric heating?

Yes, the system includes provisions for electric heating and anode protection.

Vacuum Direct-Plug High Quality Solar Energy Water Heater

Name: Vacuum Direct-Plug High Quality Solar Energy Water Heater
Brand: Shandong Longguang Tianxu Solar Energy Co., Ltd.
SKU: 1944298822

Shandong, ChinaShandong Longguang Tianxu Solar Energy Co., Ltd.

US$70.00-300.00

1 Set

Product profile

Customization

Available

After-sales Service

Provided

Warranty

3 Years

Model NO.

TX-NP-100L

Max. Capacity

>200L

Structure

Compact Type

Pressure

Unpressurized

Interior Material

Stainless Steel

Collector Components

Glass Vacuum Tube

Composition

Collector

Certification

ISO9001, CCC

Transport Package

Cartons

Specification

100L

Trademark

Tianxu or OEM

Origin

China

HS Code

841919

Production Capacity

100000 Sets/Month

Key features

Cost-Effective Solution: Designed for residential hot water applications with low maintenance and repair costs.

Long Operating Life: Durable design ensures extended service life with minimal maintenance requirements.

High Energy Yield: Superior heat retention due to high vacuum tubes and polyurethane insulation.

Customized Solutions: Available tailored solar water heating solutions to meet specific needs.

Premium Inner Tank: Constructed with high-quality stainless steel SUS304-2B for excellent water quality.

3-Year Warranty: Comprehensive 3-year warranty coverage provided for all mechanical equipment.

ISO9001 Certified: Manufacturing process meets international ISO9001 quality standards.

Fast Lead Time: Average lead time within 15 working days for both peak and off-peak seasons.

Company profile

Shandong Longguang Tianxu Solar Energy Co., Ltd.

Shandong, China

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.