Non pressure solar water heater 30tubes-300Liter
US $150.30 - 185.00
ENSUN-CNP300
FOB/CIF
1piece
Anren Road, Jianshan New District, Huangwan Town, Haining City, Zhejiang Province,
China
30daysDay
Capacity:300L(customizable)
Number of tubes:8tubes~30tubes(customizable)
inner tank material:SUS 304-2B(customizable)
inner tank thickness:0.38mm/0.45mm(customizable)
outer tank material:SUS 201/304-2B(customizable)
outer tank thickness:0.31mm(customizable)
Frame material:Color steel(customizable)
Frame angle:20°/45°(customizable)
Frame type:Conventional/U type/Adjustable Frame
Number of tubes:8tubes~30tubes(customizable)
inner tank material:SUS 304-2B(customizable)
inner tank thickness:0.38mm/0.45mm(customizable)
outer tank material:SUS 201/304-2B(customizable)
outer tank thickness:0.31mm(customizable)
Frame material:Color steel(customizable)
Frame angle:20°/45°(customizable)
Frame type:Conventional/U type/Adjustable Frame
Quantity
Basic parameters:
Minimum order quantity: 10 sets
Capacity: 300 liters
Number of vacuum tubes: 30 tubes (size 58×1800mm, three-target vacuum tube)
Pressure type: Non-pressure type
Cycle type: Indirect/closed cycle (active)
Energy: Solar powered
Material and Structure:
Liner material: SUS 304-2B (thickness 0.38mm, customizable)
Case material: SUS 201 (thickness 0.31mm, customizable)
Frame material: SUS 201, Angle 45°, thickness 1.2mm, width 7cm
Insulation layer: 50mm high-density polyurethane foam
Additional information:
Warranty: More than 2 years
Application scenario: Hotel, business, home (bath, hot water supply)
Installation mode: Independent, in-line connection
Make and Model: Non-Pressure Evacuated Tube Water Solar Heater System
Supply capacity: 2000 pieces per month
After-sales service: Spare parts are provided free of charge

Discover Sustainable Efficiency with Our 300L Non-Pressurized Solar Water Heaters
At ZHEJIANG KESUN NEW ENERGY CO., LTD.,As solar water heater manufacturer, we specialize in the production of top-tier, eco-friendly solar water heaters, with our 300-liter non-pressurized models standing out as the flagship product. Designed for both durability and performance, our solar water heaters harness the renewable power of the sun to provide consistent, cost-effective hot water solutions for both residential and commercial settings.

Why Choose Our 300L Non pressurized Solar Water Heater?
Optimized for global climates:
- Energy Efficiency & Cost Savings:
- Our300L solar water heater operates entirely on solar energy, eliminating electricity or gas costs.
- Withhigh-quality vacuum tube technology, it maximizes solar heat absorption, ensuring efficient water heating even in low-temperature environments.
- Durable & Corrosion-Resistant Tank:
- Built with 304 stainless steelorgalvanized-coated inner tanks, our system resists corrosion, scaling, and rust.
- Long-lasting performance ensures minimal maintenance, making it a cost-effective investment.
Customizable & Durable Design:
- Material Flexibility: The materials (stainless steel 201, stainless steel 204, stainless steel 316L, galvanized steel) of our non-pressurized solar water heaters' water tanks (inner tank, outer tank, tank cover) can be customized, and the materials (stainless steel 201, stainless steel 304, stainless steel 316L, galvanized steel) of the brackets can also be customized.
- Adaptable Installation: Our brackets can be customized with angles (0°, 20°, 30°, 45°, etc.) and styles (7cm bracket, U-shaped bracket, adjustable bracket) to meet the sunshine conditions in different countries and regions, and achieve better acceptance of solar heating water tanks.
- Water tank size customization:The diameter of the water tank (450mm, 470mm) can be customized. The joint of the water tank can be selected as external thread or internal thread. Which holes need to be opened on the water tank and which accessories need to be equipped can all be customized according to customer needs.
- OEM Branding: Add your logo via screen printing, laser printing or stickers and design custom carton packaging - tailor-made for solar water heater dealers.
Applications of 300L Non-Pressurized Solar Water Heater
- Residential Use:
- Homeowners can enjoy cost-effective hot water for daily needs, including bathing, cooking, and laundry.
- Ideal for rural homes, villas, and holiday resorts, where electricity costs are high or unreliable.
- Commercial & Industrial Use:
- Hotels, guesthouses, and apartments can reduce operational costs by integrating a solar heating system.
- Restaurants and catering businesses benefit from consistent hot water supply without excessive energy expenses.
- Schools, hospitals, and community centers can ensure hygienic and energy-efficient water heating.
Technical Superiority
We invest in cutting-edge solar technology, ensuring:
- High-efficiency solar vacuum tubesformaximum sunlight absorption.
- Advanced insulation technology to maintain heat retention for longer periods.
- Automated production lines for precision manufacturing and quality assurance.
- Stringent product testing to guarantee long-term performance.
B2B Advantages for Global Partners
As a trusted solar water heater manufacturer, we collaborate with wholesalers, distributors, and project developers across the world. Our B2B benefits include:
- OEM & ODM customization for specific market demands.
- Bulk order discounts & flexible shipping options.
- Comprehensive after-sales support and technical guidance.
- Proven track record with successful installations in Europe, Africa, Asia, and Latin America.
Sustainability Meets Affordability
Our solar heater system for home prioritizes eco-friendliness:
- Zero Carbon Emissions: Fully solar-powered, reducing reliance on fossil fuels.
- Low-Cost Maintenance: No complex controls—direct-plug operation for easy use.

Why Trust ZHEJIANG KESUN?
As a leading OEM supplier from Zhejiang, China, we ensure:
✅ ISO-Certified Quality: Meets global standards for safety and efficiency.
✅ India-Focused Solutions: Designed for local water conditions and climate challenges.
✅ End-to-End Support: From customization to after-sales service.
✅ India-Focused Solutions: Designed for local water conditions and climate challenges.
✅ End-to-End Support: From customization to after-sales service.