π 250L Solar Water Heater Non-Pressurized Seven SS
πΉ Detailed Description
The 250L Solar Water Heater Non-Pressurized Seven SS is an energy-efficient, eco-friendly solution for heating water using solar energy. It operates on the thermosiphon principle (β¨οΈ natural convection) without requiring pumps or electricity. The system includes a stainless steel (SS) storage tank and high-efficiency vacuum tube collectors that capture solar energy to heat water.
Since itβs non-pressurized (π§ gravity-fed), it works best in locations where water is supplied from an overhead tank. The stainless steel build ensures durability and corrosion resistance, making it a long-lasting investment.
βοΈ Technical Specifications
| π Feature | π Specification |
|---|---|
| πΉ Capacity | 250 Liters |
| πΉ System Type | Non-Pressurized, Thermosiphon |
| πΉ Collector Type | Vacuum Tube Collector (Glass Tubes) |
| πΉ Number of Tubes | 20β30 tubes (depends on model) |
| πΉ Tube Material | Borosilicate Glass with Selective Coating |
| πΉ Tube Size | ~58mm diameter, 1800mm length |
| πΉ Absorption Efficiency | ~92% |
| πΉ Tank Material | Stainless Steel (SS 304/316) |
| πΉ Tank Insulation | Polyurethane Foam (PUF) (~50mm thick) |
| πΉ Frame Material | Stainless Steel or Aluminum Alloy |
| πΉ Operating Temperature | 50Β°C – 95Β°C |
| πΉ Heat Retention | ~72 hours |
| πΉ Mounting Angle | Typically 20Β°-45Β° (depends on latitude) |
| πΉ Water Inlet Pressure | Gravity-fed (0 bar) |
| πΉ Lifespan | 15+ years with proper maintenance |
| πΉ Warranty | Typically 5-10 years |
π‘ Applications
The 250L Solar Water Heater Non-Pressurized Seven SS is suitable for:
β
π Residential Use β Provides hot water for families (4-6 people) for bathing, washing, and cooking.
β
π¨ Hotels & Lodges β Perfect for small guesthouses or lodges using low-pressure water supply.
β
π« Schools & Hostels β Supplies hot water for large groups efficiently.
β
π₯ Hospitals & Clinics β Helps with sterilization and hygiene needs.
β
πΏ Rural & Off-Grid Areas β Works great in locations with limited electricity, running solely on solar power.
π οΈ Maintenance & Care
Proper maintenance ensures optimal efficiency and extends the lifespan of your solar water heater (β‘β¨οΈ).
π Regular Maintenance Tasks
πΉ Clean the Vacuum Tubes β Remove dust and debris every 3-6 months for maximum sunlight absorption. βοΈ
πΉ Check Water Inlet & Outlet β Ensure there are no blockages or leaks. π°
πΉ Inspect the Storage Tank β Look for any corrosion or damage in the stainless steel tank. ποΈ
πΉ Flush the System β Remove sediment or mineral buildup every 6-12 months. π¦
πΉ Check for Leaks β Inspect all joints, seals, and connections. Replace rubber gaskets if needed. π§
πΉ Monitor Insulation β Ensure polyurethane foam (PUF) insulation is intact to prevent heat loss. βοΈ
π¦οΈ Seasonal Maintenance
βοΈ Winter Care β Protect against freezing by insulating pipes or using an anti-freeze solution.
π₯ Summer Optimization β If overheating occurs, install a temperature relief valve.
By following these maintenance tips, your 250L Solar Water Heater Non-Pressurized Seven SS will keep delivering hot water efficiently for years to come! πΏβ»οΈπ§









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