Home » Products » Solar Water Heater » Solar Geyser » 100L Low pressure vacuum tube gravity solar geyser

100L Low pressure vacuum tube gravity solar geyser

Low Pressure gravity Solar Geyser with solar vacuum tubes, high efficiency, low price, easy installation, suitable for most african countries, such as south africa, Zimbabwe, Namibia, Lesotho, Tanzania, Kenya. 
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  • RNE-NC-10

  • SOLARAVEN

  • 841912

Overview


The Solar Geyser redefines affordability and performance in solar water heating, merging compact design with industrial-grade durability. Its lightweight yet robust aluminum frame and copper-core heat exchangers enable 30% faster heat transfer compared to standard models, making it ideal for urban apartments and rural homesteads alike. The system operates silently at 98% thermal efficiency, leveraging advanced phase-change materials to store excess heat for nighttime use. Compatible with IoT ecosystems, it offers customizable temperature profiles and energy usage analytics, empowering users to optimize consumption. With frost-resistant valves and tropicalized components, it performs flawlessly in climates ranging from -20°C to 50°C, democratizing access to clean hot water worldwide.


Features


1. Copper Helical Heat Exchangers: High-purity copper coils increase surface area for rapid heat absorption, achieving 70°C water within 2 hours of peak sunlight.

2. Aerospace-Grade Aluminum Frame: Powder-coated, rust-proof frame reduces total weight by 25% while supporting rooftop installations on lightweight structures.

3. All-Climate Resilience: Self-draining technology and PTFE-coated tubes prevent freezing damage, while UV-resistant polymers combat degradation in tropical sunlight.

4. Interactive LCD Dashboard: Displays real-time metrics like daily energy saved, CO2 emissions reduced, and system diagnostics in 6 languages.

5. Plug-In Scalability: Connect up to 4 units via daisy-chained ports for expanded storage (up to 1200L) without additional controllers.

6. E-Waste Reduction: 95% recyclable components and a take-back program align with circular economy principles.


Applications


· High-Rise Buildings: Compact units fit balcony railings or vertical mounts, serving urban apartments with limited space.

· Mobile Clinics: Provides sterilized hot water for medical equipment in remote healthcare setups.

· Food Trucks: Supports kitchen hygiene and dishwashing for mobile catering businesses.

· Sports Complexes: Fuels locker room showers and hydrotherapy pools in stadiums and gyms.


FAQ


Q: How efficient is the system during monsoon seasons?

A: Efficiency drops marginally to 70–80% during heavy rain, but built-in thermal retention ensures 8–12 hours of hot water availability post-sunlight.

Q: Can the geyser be moved after installation?

A: Yes, the lightweight panels and detachable plumbing allow easy relocation. A reinstallation kit with sealants and brackets is included.

Q: Are financing options available?

A: Partner financial institutions offer low-interest green loans and lease-to-own plans in select countries.

Q: How are defective tubes replaced?

A: Tubes can be individually replaced without draining the tank. Spares are shipped globally within 5–7 business days.



100l_solar_water_heater_non_pressurized_with_assistant_tank



Model

Vacuum Tube

Capacity

Absorber Area

Suitable for

Pcs

Size(mm)

(L)

(㎡)

(Persons)

RNE-NS-10

10

58×1800

100

1.330

2

RNE-NS-15

15

58×1800

150

1.995

3

RNE-NS-20

20

58×1800

200

2.660

4

RNE-NS-25

25

58×1800

250

3.325

5

RNE-NS-30

30

58×1800

300

3.990

6



Gravity Solar Geyser with vacuum tubes

Solar Water Tank

1

Material of   Outer Tank Shell

stainless steel 304 2B or 316L

2

Material of   Inner Tank Chest

stainless steel 304 2B or 316L

3

Water Tank   Diameter

【460/360MM】

4

Water Tank   Insulating Layer

Imported   Polyurethane,High Density,【50MM】

5

Heat   Preservation Period

72~80Hours

6

Welding Method

Argon Arc   Welding

Solar Vacuum Tube

7

Solar vacuum tube structure

All-Glass Double   Co-Axial Structure

8

Glass Material

High   Borosilicate 3.3 Glass

9

Tube Size

【diameter 58MM* length 1800MM】 

10

Outer Tube   Dia.&Glass Thickness

φ58±0.7mm,Glass   Thickness 1.6±0.15mm

11

Inner Tube   Dia.&Glass Thickness

φ47±0.7mm,Glass   Thickness 1.6±0.15mm

12

Coating Material

【CU/SS-ALN(H)/SS-ALN(L)/ALN】

13

Sediment Method

Tri-Element   Magnetron Sputtering Plating

14

Absorb Ratio

>96%(AM1.5)

15

Thermal   Emissivity

≤6%/(80℃)

16

Hail Resistance

φ25mm

Solar water heater 

Bracket

17

Bracket Material

【Stronger Galvanized Steel】

18

Bracket Angle

【25°】

19

Bolts&Muts

Stainless Steel

Assistant Tank

20

Assistant Tank   Material

Stainless steel 

21

Assistant Tank   Capacity

【5L/8L/20L】

22

Assistant Tank   Model

Vertical/Horizontal,Optional



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