800L (198 Gal) Stainless Solar Hot Water Tank
$6,036.18 on Amazon.com (as of October 16, 2026, 8:34 PM EST) View details ↗
The Duda Solar 800-liter (198-gallon) stainless steel solar hot water heater delivers reliable, high-efficiency performance for residential and light commercial applications. Built with a food-grade SUS 304-2B inner tank and a galvanized steel outer shell (0.5mm thick), it resists corrosion and ensures long-term durability. The high-pressure polyurethane foam insulation (density 36 kg/m³, R-Value 12.5) minimizes heat loss, maximizing energy savings year-round.
Featuring a TU1 copper heat exchanger coil (66 ft long, 1mm thick), this system efficiently transfers solar heat to stored water, while the 3/4″ NPT water ports and 1/2″ MPT coil connections simplify installation. Additional fittings include a temperature/pressure relief valve, abode rod, and drain port (all 3/4″). Ideal for solar thermal systems, this tank meets rigorous quality standards for performance and longevity.
| Capacity | 800 liters (198 gallons) |
|---|---|
| Inner Tank Material | Food-grade SUS 304-2B stainless steel |
| Outer Tank Material | Galvanized steel (0.5mm thickness) |
| Insulation | High-pressure polyurethane foam (R-Value 12.5) |
| Heat Exchanger Coil | TU1 copper, 66 ft long, 1mm thick |
| Port Sizes | Water: 3/4″ NPT | Coil: 1/2″ MPT | T/P Valve/Drain: 3/4″ |
