New Product Wholesale Stainless Steel Solar Water Heater offered by our company is a premium-grade, cost-efficient, and eco-friendly solar water heating solution. This system is built using food-grade stainless steel for both inner and outer tanks, offering excellent durability, corrosion resistance, and hygiene. It operates on thermosyphon technology with evacuated tube heating, ideal for residential, commercial, and off-grid environments.
New Product Wholesale Stainless Steel Solar
| Material of inner tank | 0.31mm-0.5mm thickness,food grade SUS304-2B or SUS316L | |||
| Material of outer tank | 0.4mm thickness,Stainless steel 202 or SUS304 | |||
| Insulating layer | 50-55mm thickness,45kg/m3 high density polyurethane foamed | |||
| Inlet and outlet hole | Male G 1/2,3/4…… | |||
| Max. pressure | 0.05Mpa | |||
| Solar collector tube | 3.3 Borosilicate glass with Cu-SS-ALN/ANL. coating | |||
| Thickness of glass tube | 1.6mm/1.8mm/2.0mm/2.2mm | |||
| Vacuum tube tightness | P≤0.005 Pa | |||
| Average heat loss coefficient | ULT=0.6~0.7W/(m2.C) | |||
| Bracket(frame) | 1.2mm thickness stainless steel or 1.5mm galvanized steel | |||
| Frame angle | 20/38/45 degrees | | ||
| Structure of tank: | 5 holes for air vent,overflow,water inlet and outlet,electric heater | |||
| Welding | Argon arc welding | |||
| Fastening pieces: | Made of stainless steel screw | |||
| Tank capacity | From 50-500L | |||
Technical Data
Type: Evacuated Tube
Circulation Type: Direct / Open Loop (Active)
Tank Capacity: Ranges from 50 to 500 liters
Power Source: Solar Power
App Controlled: No
Place of Origin: Zhejiang, China
After-sales Service: Free spare parts
Warranty: 5 Years
Connection Type: Direct-Plug
Installation: Freestanding
Housing Material: Stainless Steel
Control Type: Manual
Logo/Pattern: Silk Screen Printing
Welding: Argon Arc Welding
Fastening Pieces: Stainless Steel Screws
Inner Tank Material: 0.31mm-0.5mm SUS304-2B/SUS316L
Outer Tank Material: 0.4mm Stainless Steel 202/SUS304
Insulating Layer: 50-55mm Polyurethane Foam, 45kg/m3 Density
Inlet/Outlet Hole: Male G 1/2, 3/4…
Max Pressure: 0.05Mpa
Collector Tube: 3.3 Borosilicate Glass with Cu-SS-ALN/ANL Coating
Glass Tube Thickness: 1.6mm/1.8mm/2.0mm/2.2mm
Vacuum Tube Tightness: P ≤ 0.005 Pa
Heat Loss Coefficient: ULT = 0.6~0.7W/(m2.C)
Frame Thickness: 1.2mm Stainless Steel / 1.5mm Galvanized Steel
Frame Angles Available: 20° / 38° / 45°
Tank Structure: 5 holes for air vent, overflow, water inlet/outlet, and electric heater
Feature Overview
Economical and highly reliable design with simplified structure for easy and fast installation.
Operates solely on solar power, reducing electricity bills and environmental footprint.
Supports back-up electric heater use during cloudy or rainy days.
Direct water heating from solar radiation enhances efficiency.
Thermosyphon-based water circulation increases durability.
Well-insulated tank maintains water temperature for up to 72 hours.
No pumps or controllers required, reducing maintenance.
Can be used as a standalone system or integrated as a pre-heating unit.
High-quality stainless steel tank and tubes extend system lifespan.
Ideal for homes, hotels, and commercial locations seeking off-grid hot water solutions.
More Details
App-Controlled: Not supported
Manual Controls: Yes
Customization: Available from 100 units
Logo Customization: Silk screen printing
Graphic Customization: Available from 100 sets
Electric Heater Optional: Yes
Packaging and Shipping
Selling Units: Single item
Package Dimensions: 200 x 160 x 100 cm
Gross Weight: 60.000 kg
Lead Time:
1 to 170 Sets: 16 Days
More than 170 Sets: Negotiable
Q1: Is stainless steel suitable for hard water areas?
A: Yes, stainless steel tanks are highly resistant to corrosion, scaling, and sediment build-up.
Q2: Can I install this heater on a flat roof?
A: Yes, we provide adjustable-angle brackets suitable for flat or sloped roofs.
Q3: Do you provide after-sales support?
A: Yes, we offer spare parts, technical support, and warranty services.
Q4: Is electric backup included?
A: It is optional. Backup immersion heaters can be added per customer requirements.
Q5: Can I order in bulk with my brand name?
A: Absolutely. We support OEM orders starting from 100 sets.
SUNECO Solar Technology has an experienced team dedicated to ensuring the highest standards in solar water heating performance. We are committed to delivering personalized customer solutions and ensuring long-lasting product reliability in every installation. Your orders for solar heating systems are closely monitored and implemented to maintain superior product quality from production to delivery.
SUNECO’s solar thermal division operates 24 hours a day, 7 days a week, ensuring responsive service and support across all time zones and regions. Whether you need a solar water heater for a home, a custom solar collector for a commercial building, or accessories for a full installation, SUNECO is ready to serve with consistent excellence and technical expertise.
