
Flat Plate Solar Water Heater
High Efficiency Heat Absorption
Multiple Tank Capacities (120L – 300L)
Suitable for Both Flat & Slope Roofs
Smart, Eco-Friendly Water Heating Solution
for Residential and Commercial Use
Product Highlights
The Flat Plate Solar Water Heater combines a high-performance solar collector with a pressurized or low-pressure tank, delivering reliable hot water in all climates. Its enamel-coated or stainless-steel inner tank ensures durability, while the flat plate collector provides high output even in low light. Versatile and easy to install, it features modular collectors, a durable glass cover for impact resistance, and supports anti-freeze use in cold climates. Made from eco-friendly, recyclable materials, it is ideal for residential, villa, hotel, and small commercial applications.

Pressurized system, comfortable to use

Circulating water is separated from water

Suitable to work with anti-freeze liquid

Maximize heat transfer

Optimized heat insulation

Can be installed on sloping roofs and flat roofs

Woven toughened solar safety glass

Modular system easy for transport and installation

Qualified and recyclable materials
Product Overview
Technical Specifications
Model | FPS / SWH-200 (E) | FPS / SWH-250 (E) | FPS / SWH-300 (E) |
---|---|---|---|
Tank Capacity (L) | 200 | 250 | 300 |
Tank Dimensions (mm) | Ø560×1470 | Ø600×1540 | Ø600×1780 |
Collector Dimensions (mm) | 2000×1350×80 | 2000×1500×80 | 2000×1000×80 (×2) |
Collector Quantity | 1 | 1 | 2 |
Collector Area (m²) | 2.5 | 3.0 | 4.0 |
Working Pressure (bar) | ≤ 4 | ||
Outside Tank Material | Powder-coated UV-resistant steel | ||
Inside Tank Material | Enamel liner (stainless steel optional) | ||
Insulation | Polyurethane foam, 50 mm | ||
Absorber Material | Aluminum plate (Cu/Al optional) | ||
Absorber Coating | Black oxide film | ||
Absorber Thickness (mm) | 0.4 | ||
Absorptivity (%) | 93 | ||
Emittance (%) | 5 | ||
Glass Type | Textured tempered low-iron safety glass | ||
Glass Transmittance | ≥ 91% | ||
Glass Thickness (mm) | 3.25 | ||
Electrical Power – All Components (kW) | 1.5 | 3.0 | 3.0 |
Weight (kg) | 146 | 158 | 183 |


Key Features
Technical Specifications
- Enamel-coated steel or stainless steel tanks
- Flat plate or Cu/Al absorber with oxide film collectors
- Tempered low-iron safety glass with ≥91% transmittance
- Polyurethane foam insulation with 50 mm thickness
- Suitable for flat and sloped roofs installations
- Water or anti-freeze liquid - flexible operating fluids
- More than 15 years of service line under normal conditions
Application Scenarios
- Residential homes with stable hot water demand
- Villas and small-scale hospitality projects
- Hotels and small manufacturing facilities
- Public showers and staff accommodation
- Off-grid areas with limited electrical supply
- Solar-PV integrated water heating systems
- Multi-family apartment buildings and dormitories with centralized domestic hot water loads
Tank & Heat Exchanger
Outer Casing

Safety Valve Logic Diagram

System Flow Diagram

Tank Cutaway Diagram

Flat Roof Installation
