Solar Water Heater Tank (DWH Tank) featuring SUS316 stainless steel and copper coil options for enhanced thermal performance and longevity. This premium storage tank is engineered for indirect, closed-loop solar heating systems and includes optional electric auxiliary heating, ensuring reliable hot water supply under all weather conditions. With capacities ranging from 100L to 500L, it is suitable for residential, commercial, and industrial applications, and built to meet European standards with high working pressures of up to 6 bar.
| Split pressure stainless steel solar water tank | ||||
| Volume | 100L | 150L | 200L | 250L |
| Diameter(mm） | φ520×910 | φ520x1245 | φ520×1555 | φ520×1910 |
| Diameter of inner tank(mm) | Φ435 | |||
| Material &thickness of inner tank | SUS316 | |||
| Material &thickness of outer tank | Painted steel | |||
| Rated voltage | AC 220-240V, 50HZ | |||
| Rated power input | 1500W | |||
| Rated pressure | 0.4MPa | |||
| Water inlet &outlet connection | G 3/4' | |||
| Copper coil | Copper coil, Φ16 | |||
| Coil Connections | G 3/4' | |||
| SUS316L coil | SUS 316 coil, Φ20 | |||
| Coil Connections | G 1/2' | G 3/4' | ||
| Volume | 300L | 400L | 500L |
| Diameter(mm） | φ570×1804 | φ700×1586 | φ700x1586 |
| Diameter of inner tank(mm) | Φ480 | Φ600 | |
| Material &thickness of inner tank | SUS316 | ||
| Material &thickness of outer tank | Painted steel | ||
| Rated voltage | AC 220-240V, 50HZ | ||
| Rated power input | 2500W | ||
| Rated pressure | 0.4MPa | ||
| Water inlet &outlet connection | G 3/4' | ||
| Copper coil | Copper coil, Φ16 | ||
| Coil Connections | G 3/4' | ||
| SUS316L coil | SUS 316 coil, Φ20 | ||
| Coil Connections | G 3/4' | ||
Q1: What type of water heating system is this tank compatible with?
A: This tank is ideal for split-type solar water heating systems using an indirect closed-loop design, but it also supports electric heating.
Q2: Can I customize the tank material and volume?
A: Yes, we offer material options such as SUS304, SUS316, and custom-painted steel, and tank volumes from 100L to 500L.
Q3: Do you support OEM and ODM services?
A: Absolutely! We support OEM/ODM orders with custom logos, packaging, and coil configurations with a minimum order of 50 units.
Q4: How is the product shipped and packaged?
A: Each unit is packed securely in a single carton with dimensions 60 × 60 × 110 cm and a gross weight of 65 kg.
Q5: What kind of after-sales support do you offer?
A: We provide free spare parts, return and replacement services, and field maintenance and repair support.
SUNECO Solar Technology delivers high-performance solar water heating solutions tailored for residential, commercial, and industrial applications. With around-the-clock global support and a dedicated team, SUNECO ensures each system—from solar collectors to complete flat plate solar water heaters—is engineered for durability, energy efficiency, and long-term reliability. Every order is closely monitored from production to delivery, guaranteeing consistent quality and customer satisfaction.Specializing in advanced solar collectors and flat plate systems, SUNECO offers personalized solutions to meet specific installation needs. Whether it’s a solar water heater for home use or a custom thermal setup for a commercial facility,
