What is the warranty period for this solar water heater?

We provide a comprehensive 5-year warranty for all our non-pressurized solar water heaters.

How does the thermosyphon system work?

It uses natural thermal circulation where cold water is heated by vacuum tubes and rises to the tank, while cold water flows down to the tubes, requiring no pumps.

What materials are used for the water tank?

The inner tank is made of 0.41mm SUS304-2B food grade stainless steel, with SUS316L available as an optional material.

How long can the water stay hot without sun?

Thanks to the 55mm polyurethane insulation layer, the system can maintain water temperature for up to 72 hours.

Is the product resistant to hail?

Yes, the vacuum tubes are designed to resist hail impacts up to 25mm in diameter.

What is the minimum order quantity for samples?

For sample orders, the MOQ is less than 2 pieces, and they are packed in wooden boxes.

What are the lead times for production?

The average lead time is within 15 workdays for both peak and off-peak seasons.

What certifications does this product have?

The product holds CE, ISO9001, and CCC certifications ensuring international safety and quality standards.

Non Pressurized Solar Water Heater

Changzhou Raven New Energy Technology Ltd

7 yrs

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Product Highlights

5-Year Warranty Coverage: Comprehensive 5-year warranty provided for all mechanical and structural components.
Thermosyphon Natural Circulation: Utilizes simple thermal circulation without pumps or external pipes for efficient heating.
High Efficiency Photo Thermal Conversion: Advanced vacuum tube design ensures superior solar energy absorption and heat retention.
Durable Hail Resistance: Constructed to withstand hail impacts up to 25mm in diameter for long-term outdoor use.
Superior Heat Preservation: 55mm polyurethane foam insulation layer maintains water temperature for up to 72 hours.
Food Grade Stainless Steel Tank: Inner tank made of 0.41mm SUS304-2B food grade stainless steel (SUS316L optional).
Compact Integrated Structure: Collector and tank connected directly, eliminating the need for complex piping systems.
Multiple Certification Standards: Product certified with CE, ISO9001, and CCC for international quality and safety compliance.

Product Attributes

Customization: Available
After-sales Service: Yes
Warranty: 5 Year
Model NO.: RNE-NC-15
Max. Capacity: 300L
Structure: Compact Type
Pressure: Unpressurized
Interior Material: Stainless Steel
Collector Components: Glass Vacuum Tube
Composition: Collector
Certification: CE, ISO9001, CCC
System Type: Non Pressure Solar Water Heater
Installation: Rooftop Mounting
Tank Capacity: 150liter
Inner Tank Material: SUS304 2b Stainless Steel 0.41mm
Outer Tank Material: Painted Galvanized Steel 0.31mm
Insulation Layer: Polyurethane Foam 55mm
Solar Collector: Solar Vacuum Tube
Tube Coating Structure: Three Target Coating
Tube Material: High Borosilicate Glass 3.3, 1.6mm Thick
Stand Frame: Galvanized Steel 1.5mm
Accessory: Feeder Tank, Electric Heater, Controller
Transport Package: Carton
Specification: 150L
Trademark: RAVEN NEW ENERGY
Origin: China
HS Code: 84191910
Production Capacity: 2000PCS/ Month

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Non Pressurized Solar Water Heater
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Product Description

Compact Non Pressure Solar Water Heater

Thermosyphon low pressure solar water heater, adopts simple thermal circulation, cold water heated by solar vacuum tubes, then hot water go up to tank, cold water in tank flow into solar vacuum tubes, cold and hot water form a natural circulation called thermosyphon, the whole tank water will become hot gradually.

Specialty:

1.Economical type for most of area,common people can afford it
2.Simple product structure: solar collector and water tank connected together directly, no need of pipe to connect, and no pump to push fluid
3.Mature technology and stable operation
4.Higher efficiency on photo thermal conversion.
5.Accessory is popular and easy maintenance

Technical specification:

1. Inner Tank: 0.41mm SUS304-2B food grade stainless steel (optional material: SUS316L).
2. Outer Tank: 0.41mm SUS304-2B food grade stainless steel (SUS304-2B).
3. Bracket: Galvanized steel , thickness 1.5mm , angle 20°/30°/45°.
4. Insulation: 55mm polyurethane layer.
5. Vacuum tube material: borosilicate glass 3.3; AL-SS-CU absorb coating
6. Seal material: Stabilized High Temperature Silicon
7. It resists 25mm hail.
8. Heat preservation: 72 hours

Production flow:
Non Pressurized Solar Water Heater

Packing details:
solar water tank 1 carton, stand frame 1 carton, solar vaccum tubes , 10pcs / carton .
For sample order, MOQ less than 2pcs , packed by wooden box .
Non Pressurized Solar Water Heater

Customer installations :

For any inquiry, please feel free to contact us !

About the Supplier

This supplier has been audited by TÜV Rheinland. Verify the report on the official TÜV Rheinland website with ID "MIC-ASR234917". Items marked "" are certified.

Changzhou Raven New Energy Technology Ltd

Company Profile

CHANGZHOU RAVEN NEW ENERGY TECHNOLOGY Ltd was established in 2008, and is located in Changzhou city, Jiangsu Province, China. With convienent transportation and beautiful environment. Our company covers as area of 45000 square meters and has over 100 employees.

We are specialized in solar energy saving products production and selling. Our company has rich experience in the solar industry. As a professional solar system supplier, we have excellent teams who focus on product development & design, quality control & inspection and company running. Our products were exporting to more than 80 countries.

Our main products including solar BBQ oven, solar oven, solar BBQ grills, low pressure and high pressure compact solar hot water heater, split high pressure solar water heating systems, solar geysers, solar thermal panels, heat pipe solar colelctors, evacuated tube solar collectors, off grid & grid tie solar PV power systems, mono and poly solar PV panels, growatt solar PV inverters, solar LED lights, Wilo hot water circulation pumps and so on. We are making great efforts to develop new products to meet different customers requirements. Adhering to the business principle of mutual benefits, we have a good reputation among our customers because of our perfect services, quality products and competitive prices. We warmly welcome clients from all over the world to cooperate with us.

Our promise is Raven New Energy makes sun works for you! Raven New Energy solar thermal and solar PV systems are enjoying a leadership role in solar application in domestic, commercial & Industries. The main goal is to provide the low cost & high quality of solar energy saving products for all over the world. We strongly believe that the customized application development is essential for the promotion of solar rooftop & thermal hense we have always emphasized on development in house research team. Solar thermal and solar PV has been key business vertical which helps to save recurring energy expense.

About Our Factory & Business Background

Address: No. 622, 5 Block, Huijin Zhiye Plaza, Zhonglou District, Changzhou, Jiangsu, China
Terms of Payment: T/T, Western Union, Money Gram
International Commercial Terms(Incoterms): FOB, CIF, DDP
Average Lead Time: Peak Season Lead Time: within 15 workdays
Off Season Lead Time: within 15 workdays
Nearest Port: Shanghai

Our Production Capability & Technical Expertise

Main Products: Solar Cooker, Solar Water Heater, Solar Vacuum Tube, Solar Geyser, Solar Collector, Solar Panel, Solar Power System, Solar Oven, Solar Light, Solar Inverter

Our Industry Experience & Global Business Record

Export Year: 2020-02-04
Main Markets: North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe

FAQ

What is the warranty period for this solar water heater?: We provide a comprehensive 5-year warranty for all our non-pressurized solar water heaters.
How does the thermosyphon system work?: It uses natural thermal circulation where cold water is heated by vacuum tubes and rises to the tank, while cold water flows down to the tubes, requiring no pumps.
What materials are used for the water tank?: The inner tank is made of 0.41mm SUS304-2B food grade stainless steel, with SUS316L available as an optional material.
How long can the water stay hot without sun?: Thanks to the 55mm polyurethane insulation layer, the system can maintain water temperature for up to 72 hours.
Is the product resistant to hail?: Yes, the vacuum tubes are designed to resist hail impacts up to 25mm in diameter.
What is the minimum order quantity for samples?: For sample orders, the MOQ is less than 2 pieces, and they are packed in wooden boxes.
What are the lead times for production?: The average lead time is within 15 workdays for both peak and off-peak seasons.
What certifications does this product have?: The product holds CE, ISO9001, and CCC certifications ensuring international safety and quality standards.