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Heater solar water 2
RIWATT Portable Solar Water Heater demo is a compact, energy-efficient solar hot water solution designed for camping, outdoor applications, product display, training, and sample evaluation.
Portable Solar Water Heater is a compact, energy‑efficient hot water solution designed for product demonstration, outdoor use, training display, and small‑scale applications. This mini solar hot water system clearly demonstrates the working principle of solar water heating while delivering reliable hot water performance in a portable form.
Built with RIWATT’s professional solar water heating technology, this portable solar water heater is ideal for product display, dealer samples, exhibitions, camping demonstrations, and educational purposes.
Utilizes advanced solar thermal absorption to convert sunlight into usable hot water efficiently.
Lightweight structure, easy to move, transport, and install — perfect for demo and mobile applications.
High‑quality stainless steel inner tank with corrosion‑resistant outer casing ensures long service life.
Optimized heat transfer design allows quick temperature rise even under moderate sunlight.
Can be used as a standalone unit or integrated into solar hot water kits for training and system demonstrations.
| Portable Solar Water Heater Specification | ||
| Water Storage Tank | ||
| 1 | Material of out tank | SUS-304-2B or201 Stainless Steel. |
| 2 | Material of inner tank | Food grade stainless steel SUS304-2B |
| 3 | Tank insulating layer | 55mm , high-density polyurethane foam |
| 4 | Inlet and outlet hole | 1/2’’ or 3/4” |
| 5 | Tube to tube distance | 80mm |
| 6 | Tank size | 320/255mm or customize |
| 7 | Welding: | TIG welding |
| Solar Evacuated Vacuum Tubes | ||
| 8 | Tube structure | All-glass double deck co-axial structure |
| 9 | Glass material | High borosilicate 3.3 glass |
| 10 | Outer tube dia. and glass thickness | Ø58±0.7mm; Glass thickness 1.6±0.15mm |
| 11 | Inner tube dia. and glass thickness | Ø47±0.7mm; Glass thickness 1.6±0.15mm |
| 12 | Tube size | 58*600mm 58*800mm or 58*1000mm |
| 13 | Structure | Cu/SS-ALN(H)/SS-ALN(L)/ALN |
| 14 | Sediment method | Three targets magnetron sputtering plating |
| 15 | Specific absorption | 0.93-0.96(AM1.5) |
| 16 | Emission ratio | 0.04-0.06(80℃±5℃) |
| 17 | Vacuum tightness | 5.0×10¯³ Pa |
| 18 | Idle sunning property parameters | 260-300 m².C/KW |
| 19 | Average heat loss coefficient | ULT=0.4~0.6W/(M2.0C) |
| 20 | Resistant Hail | ≤35mm |
| 21 | Useful life | 15 years |
| Solar Water Heater Bracket | ||
| 22 | Bracket: | 1.2mm thickness stainless steel |
| 23 | Bracket angle: | 20/25/30/38/45 degree flat roof |
| 24 | Fastening pieces: | Stainless steel. |
The RIWATT portable solar water heater is designed for multiple real‑world and commercial scenarios:
Ideal for camping shows, outdoor exhibitions, and off‑grid demonstrations.
A perfect demo solar water heater for showrooms, distributors, and training centers.
Used for solar water heating principle teaching, technical training, and product explanation.
Suitable as a solar water heater sample unit for evaluation before bulk orders.
Evacuated tubes absorb solar radiation and directly heat the water inside the tubes.
As the water warms, it rises naturally into the storage tank while cooler water flows down into the tubes, forming continuous thermosiphon circulation without pumps or electricity.
The tank operates at atmospheric pressure and stores hot water with thermal insulation, ensuring safe, stable, and energy-efficient hot water supply.
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Portable Solar Water Heater Water Tank Diagram
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RIWATT specializes in solar water heating systems with proven global export experience.
Designed to match market demand for portable solar water heaters and mini solar hot water kits.
Capacity, materials, and configuration can be customized for branding or demo needs.
100% solar energy driven — zero electricity cost and reduced carbon footprint.
Unlike large fixed solar water heaters, the RIWATT portable solar water heater focuses on mobility, demonstration efficiency, and ease of use.
It provides a clear understanding of solar hot water working principles without complex installation, making it ideal for marketing, training, and sample evaluation.
A portable solar water heater is a compact solar thermal system designed for easy movement, quick setup, and mobile hot water applications.
Yes. The RIWATT portable solar water heater is ideal for camping demonstrations and outdoor hot water showcases.
Absolutely. It is specially designed as a demo solar water heater and solar water heater sample.
Yes. RIWATT offers OEM and customization options for branding, structure, and configuration.
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