Description of our Solar water heater,
| Description | Non-pressure solar water heater |
| Material of inner tank | 0.4mm SUS304-2B food grade stainless steel |
| Material of outer tank | 0.4mm colorful steel |
| Tank insulating layer | 55mm high-density polyurethane foamed |
| Tank Capacity | 240L |
| Max pressure | 0.05 Mpa |
| Solar collector tube | 3.3 Borosilicate glass with N/Al coating |
| Thickness of glass tube | 1.6mm |
| Vacuum tube tightness | P< =0.005 Pa |
| Absorption | as=0.93-0.96(AM1.5) |
| Emission ratio | 0.04-0.06(80C+-5C) |
| Heat preservation | 72hrs |
| Hail resistance | Φ25mm |
| Bracket: | 1.4mm coated galvanized steel |
| Structure of tank: | 5 holes for air vent, overflow, water inlet and outlet, electric heater |
| Welding: | Argon arc welding |
| Fastening pieces: | Made of stainless steel screw |
| Tube quantity | 24 tube 58x1, 800mm |
Cirtifications Of Product
Pre-sale Service
1. Sample can be offered with sample and courier charge by buyer's side.
2. We have full stock,and can deliver within short time.Many styles for you to choose.
3. OEM and ODM order are accepted, Any kind of logo printing or design are available.
4. Good Quality + Factory Price + Quick Response + Reliable Service, is what we are trying best to offer you!
5. All of our products are produced by our professional workman and we have our high-work-effect foreign trade team, you can totally believe our service.
6. We have rich experience of design, manufacture and sell solar water heater, we cherish every order from our honor.
After you choose
1. We will count cheapest shipping cost and make invoice to you at once.
2. Check quality again, then send out to you at 3-4 working day after your payment,
3. Email you the tracking no, and help to chase the parcels until it arrive you.
After-sale service
1. We are very glad that customer give us some suggestion for price and products.
2. If any question,please contact with us freely by E-mail or Telephone.
From its early beginnings in 2000 Redao (originally called Alinsidun Technologies) is a designer and manufaturer of solar water heating prodcts in China. All of our products are designed to ensure robust performance over a long lifespan. All Redao products are complied with CE, ISO9001-2008.
With our dedicated and experienced team, our specialised manufacturing base, as well as the continued focus on technical solutions and customer service, we are sure that Redao will remain the supplier of choice for many throughout the coming years.
Redao strives to maximize production outputs and quality using the very lastest in manufacturing techniques, and uses equipment with proven reliability and the flexibility to adapt to fast changing requirements of customers. If you are interested in Redao water heater system, please feel free to call us.
Redao brief profile:
2000>Alinsidun establish, the former name of Redao. Production of solar water heater tank begins.
2001>Alinsidun develop its first solar water heater. Rush production begins.
2002>Alinsidun opened sales and distribution office in Shanghai, China.
2003>Alinsidun was awarded "Observing contract & Valuing Credit Star factory" by Zhejiang Quality Examinations and Appraisal Center.
2004>Export production begins.
2005>Alinsidun observed Good Quality control system by Chinese Product Quality Management center. At the same time, Alinston became the mumber of China Solar water Quality Control System.
2006>Alinsidun was awarded "China Solar Water Heater Most Famous Brand" by China Product Quality Management Center.
2007>Alinsitun complied with the Quality Assurance Requirements of ISO 9001-2000
2011>Redao became the company name instead of Alinston, and Redao solar water heaters complied with CE certification. In Aprial, Redao complied with ISO 9001-2008.
2012>QAL mark registered.
