Neo Sun Solar Water Heater 24 Tube 275L

NeoSun 20-Tube 240L Premium Solar Water Heater - For 5-6 Person Family

Powerful 24-tube system with 275L usable / 275L gross capacity, perfect for large families, 2 bathrooms, and small hotels in Nepal. Complete SUS304 stainless steel body - 100% rust-free for longer life. Features 60mm PUF insulation, high-efficiency three-target vacuum tubes, argon arc welded tank, built-in electric backup with thermostat, and extra drain outlet for easy cleaning.

Heats even in winter & cloudy weather. Saves 80% electricity. 5-Year Tank Warranty + Free Installation in Kathmandu Valley by Solar Filter Nepal.

Full Detailed Description

Complete Stainless-Steel Construction for Rust-Free Longer Life
The entire NeoSun 24-Tube system is built with Complete Stainless Steel - outer tank, inner tank, stand, reflector and end caps. Unlike MS body heaters that rust in 2-3 years in Nepal's humid climate, this 275L model is 100% rust-proof, ideal for hard water in Kathmandu, Pokhara, Chitwan. Lifespan 15-20 years.

Corrosion-Resistant SS304 Inner Tank - 275L Capacity
Inner tank made of SUS304-2B Food Grade Stainless Steel 0.5mm thick. Anti-corrosive, no scaling, safe for bathing and kitchen use. The larger 460mm x 1750mm tank holds 230L gross, 275L net usable water - enough for 7-8 people bathing continuously.

High-Quality Three-Target Vacuum Tubes for Better Efficiency
24 pcs of 58mm x 1800mm triple-layered borosilicate glass tubes with ALN/AIN-SS/CU selective coating. Three-target sputtering gives 95% absorption, <5% emission loss. Works on thermosyphon principle - no electricity, no pump. Even at -15°C and diffuse sunlight, it heats water efficiently. CPC stainless reflector behind tubes increases efficiency by 15%.

60mm Polyurethane Foaming Insulation to Prevent Heat Loss
Premium 60mm high-density PUF injected at high pressure between tanks. Most brands use only 45-55mm. This keeps water hot for 96 hours. Overnight heat loss <5°C. You get hot water at 6 AM from yesterday's sun - most important for Nepali winter.

Argon Arc Welding Used to Inlet and Outlet, Air Vents and Drain Outlet
All joints - hot water outlet, cold water inlet, air vent, and drain - are sealed with precision Argon Arc (TIG) welding. Seamless, leak-proof, no crack points. No ordinary welding that rusts and leaks after 1 year. This is why NeoSun tanks never leak.

Electric Heating Rod with Thermostat Included for Cloudy Weather
Comes standard with 1.5kW electric backup heater with automatic thermostat (65°C ±5°C auto cut-off). During continuous rain in Shrawan or fog in Poush, just turn on the backup - same tank works like an electric geyser. Works 365 days.

Additional Drain Outlet for Tank Cleaning
Dedicated drain outlet at bottom for flushing mud, lime and sediments every 6 months. Essential for Nepali water conditions. Keeps heating efficiency high and extends life. Easy maintenance without dismantling the system.