350L Galvanised Solar Water Heater Seven SS – Pressurised Stainless Steel Inner Tank
Product Overview
The 350L Galvanised Solar Water Heater Seven SS is a premium pressurised solar water heating system designed to provide a high-volume supply of hot water for large homes, apartments, hotels, schools, hospitals, and commercial buildings. It features a 350-litre food-grade stainless steel inner tank enclosed within a durable galvanised outer casing for enhanced strength, corrosion resistance, and long-term outdoor performance.
Using high-efficiency heat pipe vacuum tube technology, the system efficiently converts solar energy into heat while maintaining excellent thermal retention. Its pressurised design delivers strong and consistent hot water flow, making it compatible with modern plumbing systems and multiple hot water outlets.
System Design & Configuration
350-Litre Storage Capacity
Provides a large volume of hot water for high-demand residential and commercial applications.
Stainless Steel Inner Tank
Constructed from food-grade stainless steel for hygienic water storage and superior corrosion resistance.
Galvanised Outer Tank
Heavy-duty galvanized steel outer casing protects the system against harsh weather conditions and extends its lifespan.
Heat Pipe Vacuum Tube Technology
High-efficiency vacuum tubes maximize solar heat absorption for fast and reliable water heating.
Pressurised Water System
Maintains strong and consistent water pressure throughout the building’s plumbing network.
High-Density Insulation
Premium polyurethane foam insulation minimizes heat loss and keeps water hot for extended periods.
Technical Specifications
| Specification | Details |
|---|---|
| Capacity | 350 Litres |
| Brand | Seven SS |
| System Type | Pressurised Solar Water Heater |
| Inner Tank Material | Food-Grade Stainless Steel |
| Outer Tank Material | Galvanised Steel |
| Collector Type | Heat Pipe Vacuum Tubes |
| Number of Tubes | 35 |
| Pressure Rating | Up to 5 Bar |
| Insulation | High-Density Polyurethane Foam |
| Mounting Frame | Heavy-Duty Galvanised Steel |
| Application | Residential & Commercial Hot Water |
Key Features
350-litre hot water capacity
Pressurised hot water delivery
Food-grade stainless steel inner tank
Durable galvanised outer tank
High-efficiency heat pipe vacuum tubes
35 solar collector tubes
Excellent heat retention
Corrosion-resistant construction
Suitable for fresh and borehole water
Energy-saving solar technology
Low maintenance requirements
Heavy-duty galvanized mounting frame
Applications
Large residential homes
Apartments
Hotels and lodges
Hospitals
Schools and institutions
Commercial buildings
Factories
Staff accommodation
Installation & Usage Guidelines
- Install in a location with maximum sunlight exposure.
- Mount securely on a reinforced roof or support structure.
- Connect to a pressurised water supply.
- Ensure all plumbing connections are properly sealed.
- Clean the vacuum tubes periodically for maximum efficiency.
- Inspect the system regularly for leaks and proper operation.
Maintenance & Care
- Clean vacuum tubes regularly.
- Inspect plumbing fittings and valves periodically.
- Check insulation and mounting frame annually.
- Replace damaged vacuum tubes immediately.
- Keep the outer tank clean.
- Schedule routine maintenance to ensure optimal performance.
Best Practices
Recommended
- Install in direct sunlight without shading.
- Use professional installers.
- Perform regular cleaning of collector tubes.
- Inspect the pressure relief valve periodically.
- Carry out annual maintenance checks.
Avoid
- Installing under trees or shaded areas.
- Ignoring water leaks or damaged tubes.
- Using incompatible plumbing fittings.
- Allowing debris to accumulate on the collector tubes.
- Skipping routine servicing.
Performance Overview
| Function | Performance |
|---|---|
| Water Heating Efficiency | Excellent |
| Heat Retention | Excellent |
| Water Pressure | Excellent |
| Energy Savings | Excellent |
| Durability | Excellent |
Frequently Asked Questions
Is this a pressurised solar water heater?
Yes. It is a pressurised solar water heating system designed to provide strong and consistent hot water pressure.
How many people can a 350L system serve?
A 350-litre system is generally suitable for 8–10 people or buildings with high daily hot water demand.
What materials are used in the tank?
The inner tank is made from food-grade stainless steel, while the outer tank is constructed from durable galvanized steel for enhanced protection.
Can it be used with borehole water?
Yes. The stainless steel inner tank is designed to resist corrosion and is suitable for fresh and borehole water.
Does it require electricity?
No. The system primarily uses solar energy to heat water, significantly reducing electricity consumption.
Why Choose the 350L Galvanised Seven SS Solar Water Heater
Large 350-litre storage capacity
Pressurised hot water system
Food-grade stainless steel inner tank
Durable galvanised outer tank
Efficient heat pipe vacuum tube technology
Excellent heat retention
Energy-saving operation
Low maintenance requirements
Ideal for residential and commercial installations
















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