The Compact Non-Pressure Solar Water Heater by our company is an economical, environmentally friendly solution designed to meet domestic and small-scale commercial hot water needs using clean solar energy. This system operates on the natural thermosiphon principle, where cold water enters the tank and gets heated through evacuated vacuum tubes without the need for pumps or pressurization.
| Type | SP(Integrated Low Pressure System) | |||
| Inner Tank Material | Food grade SUS304 2B or SUS316L | |||
| Inner Tank Diameter | Φ360mm;Φ370mm;Φ380mm;Φ420mm | |||
| Inner Tank Thickness | 0.31mm;0.38mm;0.4mm | |||
| Outer Tank Material | SPCC;PVDF;SUS304;SUS316;Colorful plate | |||
| Outer Tank Diameter | Φ460mm;Φ470mm;Φ480mm;Φ520mm | |||
| Inner Tank Thickness | 0.4mm 0.45mm 0.5mm | |||
| Tube Material | 3-target all glass tube ( High quality borosilicate glass ) | |||
| Vacuum Tube Size(mm) | 58/1800 (diameter/length) | |||
| Tube Number | 9/10/12/15/18/20/24/30/32/36/40 | |||
| Frames (Stand Parts) | Galvanized plate, Stainless steel or Aluminum alloy | |||
| Insulation Layer | High quality polyurethane foam made by advanced high pressure foam machine | |||
| Insulation Thickness | 50mm,55mm,60mm | |||
| Hail Resistance | 25mm | |||
| Operation Pressure | 0.05Mpa | |||
The Compact Non-Pressure Solar Water Heater by our company is an economical, environmentally friendly solution designed to meet domestic and small-scale commercial hot water needs using clean solar energy. This system operates on the natural thermosiphon principle, where cold water enters the tank and gets heated through evacuated vacuum tubes without the need for pumps or pressurization.
| Feature | Specification |
|---|---|
| Type | Compact Non-Pressure Solar Water Heater |
| Technology | Evacuated Tube |
| Circulation Type | Direct / Open Loop (Thermosiphon) |
| Capacity | 250 Liters (optional: multiple sizes) |
| Heat Source | Solar Thermal Energy |
| Power Source | Solar Only (No electricity required) |
| Application | Household, Hotel, Outdoor Use |
| App Controlled | No |
| Place of Origin | Zhejiang, China |
| Inner Tank Material | Food Grade SUS304-2B / Optional SUS316L |
| Outer Tank Material | Stainless Steel SUS304 / SUS316 |
| Inner Tank Thickness | 0.31mm / 0.38mm / 0.4mm / Optional 0.45mm, 0.5mm |
| Outer Tank Thickness | 0.4mm / 0.45mm / 0.5mm |
| Inner Tank Diameter | Φ360mm / Φ370mm / Φ380mm / Φ420mm |
| Outer Tank Diameter | Φ460mm / Φ470mm / Φ480mm / Φ520mm |
| Tube Size | 58mm × 1800mm |
| Tube Type | Three Target Vacuum Tubes |
| Tube Quantity | Optional: 8 / 10 / 12 / 15 / 18 / 20 / 24 / 30 / 32 / 36 / 40 |
| Frame Material | Aluminum Alloy / Galvanized Steel / Stainless Steel |
| Frame Type | Freestanding / Rooftop |
| Insulation Thickness | 50mm / 55mm / 60mm Polyurethane Foam |
| Connection Type | Direct Plug |
| Installation | Freestanding |
| Private Mold | Yes |
| Warranty | 5 Years Standard |
| After-Sales Support | Free Spare Parts Provided |
This non-pressurized model is ideal for regions with ample sunlight and limited access to conventional energy sources. It offers a simple, cost-effective, and reliable design, making it an excellent choice for households, schools, and rural installations. The absence of a pump reduces electricity consumption, operational noise, and long-term maintenance costs.
Constructed with a food-grade stainless steel inner tank and durable insulation, the system ensures safe water quality and long-lasting performance. The aluminum alloy or galvanized steel frame provides structural support and resistance against corrosion and harsh climates. The unit can be mounted on rooftops or ground-level supports, making it suitable for a variety of architectural settings.
Water is stored in a top-mounted insulated tank and is heated passively during the day by solar radiation absorbed through 58×1800 mm vacuum tubes. Hot water rises to the top of the tank while cooler water moves down through the tubes for continuous heating. This natural circulation process eliminates the need for external energy sources or control systems.
The Compact Non-Pressure Solar Water Heater is available in multiple capacities and tube configurations to suit different household sizes and climate conditions. It’s a zero-emission, low-maintenance, high-efficiency water heating solution developed to support clean energy goals and reduce dependency on fossil fuels.
Packaging Information:
Packaging Method: Carton, Pallet, or Wooden Case (Export-Grade)
Single Package Size: 200 x 200 x 150 cm
Single Gross Weight: 20.123 kg
Port of Shipment: SHANGHAI / NINGBO
Selling Unit: Single item
Monthly Supply Capacity: 5000 units
Pricing (Based on Quantity):
5 – 9 Units: HK$3,024.34
10 – 49 Units: HK$2,914.65
≥ 50 Units: HK$2,742.28
Sample Unit: HK$3,917.54
Customization Options (MOQ: 500 Units):
Customized Logo
Customized Packaging
Graphic Customization
Manufacturer Introduction:
Our company is a global leader in solar thermal technology based in Zhejiang, China. We offer innovative, energy-efficient solar water heaters and components tailored to meet the environmental and climatic needs of global markets. Our facilities include advanced testing equipment and expert technical teams. We export to over 50 countries, including the USA, Germany, France, UK, Australia, and more.
We support full design-system solutions and custom product development for clients. Our commitment is to quality, sustainability, and dependable after-sales service. If you're seeking long-term energy savings and eco-friendly technology, our solar water heating solutions are the perfect fit.
SUNECO Solar Technology delivers high-performance solar water heating solutions tailored for residential, commercial, and industrial applications. With around-the-clock global support and a dedicated team, SUNECO ensures each system—from solar collectors to complete flat plate solar water heaters—is engineered for durability, energy efficiency, and long-term reliability. Every order is closely monitored from production to delivery, guaranteeing consistent quality and customer satisfaction.Specializing in advanced solar collectors and flat plate systems, SUNECO offers personalized solutions to meet specific installation needs. Whether it’s a solar water heater for home use or a custom thermal setup for a commercial facility,
