350L Non-Pressurized Solar Water Heater Tubes (Stainless Steel)| Heavy-Duty, Rust-Resistant Solar Hot Water System for Kenyan Homes, Lodges, & Institutions

Say goodbye to costly electricity bills and inconsistent water heating. The 350L Non-Pressurized Solar Water Heater (Stainless Steel Tubes) is a high-capacity solution designed for large households or institutions needing reliable, affordable, and eco-friendly hot water throughout the year.

Made with durable stainless steel components, this unit is engineered to withstand harsh weather, minimize corrosion, and extend lifespan, even in areas with hard or salty water. It features a natural thermosiphon system that works efficiently without any electricity, using the power of the sun to heat and circulate water.

Whether you're running a lodge in Naivasha, a school in Kisii, or a home in Syokimau, this system provides you with enough hot water for 9–12 people every day, effortlessly.

Built for Large Volume Usage – 350 Litres Daily

The extra-large tank makes this unit ideal for:

• Multi-bathroom family homes (9–12 users)

• Hostels, schools, dispensaries

• Airbnbs, lodges, and rental apartments

• Remote, off-grid homes and institutions

It eliminates dependence on grid electricity, saving you money and keeping you resilient during blackouts or dry seasons.

Key Features & Benefits

• Large 350L Stainless Steel Tank
  Ample hot water storage for large families or commercial use, with minimal heat loss.

• Non-Pressurized Gravity System
  Operates using gravity flow—best paired with a rooftop water tank. No pumps or electronics needed, which makes it maintenance-light and off-grid friendly.

• 36 Stainless Steel Vacuum Tubes (58mm x 1800mm)
  Collect maximum solar radiation during the day—even in cold or cloudy weather. Stainless steel tubes resist scale buildup and have a longer service life than glass options.

• Dual-Layer SUS 304 Stainless Steel Interior
  Corrosion-resistant and food-grade quality, ensuring clean, hygienic hot water—ideal for both bathing and cooking.

• 50mm Polyurethane Tank Insulation
  Keeps water hot for 48–72 hours, letting you enjoy warm showers even on overcast days.

• Electric Heating Port (Optional Backup)
  Compatible with an electric heating element for backup in extended rainy seasons.

• Durable Frame & Fast Installation
  Galvanized steel mounting frame resists rust and UV damage. Comes with complete installation accessories.

Technical Specifications

How It Works

The system operates using the thermosiphon principle:

1. Sunlight heats the vacuum tubes, warming the water inside.

2. Hot water rises into the tank, while cooler water flows down into the tubes.

3. The cycle continues as long as sunlight is available.

4. Gravity delivers the heated water to your taps or showers.

Simple. Self-sustaining. Smart.

What’s in the Box

• 350L Stainless Steel Water Tank

• 36 Stainless Steel Vacuum Tubes

• Galvanized Mounting Frame

• Valves, Pipe Fittings, and Accessories

• Instruction & Installation Manual

• Warranty Card (5 Years)

Ideal Use Cases

• Homes with 3+ bathrooms

• Large or extended families

• Apartments with high tenant turnover

• Institutions like boarding schools or clinics

• Eco-lodges, rural Airbnbs, and homestays

• Rural or peri-urban areas where electricity is unreliable

Why Buy from Mwanga?

At Mwanga, we don’t just sell solar heaters—we deliver peace of mind and long-term savings:

• Expert Product Guidance – We'll help you choose the right unit for your needs.

• Countrywide Delivery – Fast, reliable delivery anywhere in Kenya.

• Vetted Installer Referrals – Need it installed? We’ll connect you with professionals.

• Authentic Warranty & Support – You’re covered by our 5-year product warranty.

• Solar Expertise You Can Trust – Mwanga has helped thousands of Kenyans transition to solar, one heater at a time.

The Mwanga Advantage

Investing in this 350L stainless steel solar water heater means:

• Zero recurring electricity bills

• Hot water every day—even during blackouts

• Safe, hygienic water for your family or guests

• Increased property value

• Reduced carbon footprint

Don’t settle for temporary fixes or unreliable electric heating. Go solar with a solution built to last over a decade.