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300liter direct thermosiphon pressurized evacuated tube solar geyser

300liter direct thermosiphon pressurized evacuated tube solar geyser with a 30 tube manifold solar collector suitable for households in the South Africa and Lesotho market. It is higher efficiency than flat plate solar geysers, and no over heating problems. It also works in winter time when outdoor temperature is below zero. The solar geyser could generate 300liter hot water per day, could meet hot water demand for a 6 person family. 
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  • RNE-PC-30

  • SOLARAVEN

  • 841912

Overview


The Solar Geyser is a cutting-edge water heating system engineered to excel in diverse climatic conditions, from tropical regions to temperate zones. Featuring parabolic reflectors with precision-aligned angles, it maximizes solar absorption, achieving water temperatures up to 80°C—50% faster than conventional flat-plate models. Ideal for households and industries transitioning to renewable energy, this system reduces fossil fuel dependency by 90% while maintaining operational reliability. Its rugged, weatherproof design incorporates UV-stabilized polymers and galvanized steel mounts to withstand heavy rain, snow loads, and wind speeds up to 130 km/h. Equipped with intuitive safety mechanisms and scalable configurations, the Solar Geyser is a future-proof solution for sustainable hot water generation.


Features


1. Parabolic Reflector Array: Enhances solar concentration by 3x, reducing heating time and boosting daily output by 35%.

2. Food-Grade Stainless Steel Tanks: Internally polished 304L stainless steel tanks prevent bacterial growth and ensure potable water quality, certified by NSF/ANSI 61.

3. Overheat and Frost Protection: Automated pressure-release valves and glycol-based heat transfer fluids prevent damage from boiling or freezing temperatures (-30°C to 120°C).

4. Geotagged Mounting System: Adjustable tilt brackets (15°–50°) and azimuth tracking optimize panel orientation based on GPS coordinates for year-round efficiency.

5. Dual-Energy Backup: An integrated 3 kW electric immersion heater or gas burner activates during insufficient sunlight, ensuring uninterrupted supply.

6. Global Compliance: Tested to meet ISO 9806, CE, and UL safety standards, with optional explosion-proof certification for industrial use.


Applications


· Industrial Process Heating: Provides preheated water for boilers, cleaning cycles, and sterilization in manufacturing plants.

· Aquaculture: Maintains optimal water temperatures for fish farms and hatcheries to enhance growth rates.

· Solar Cooling Systems: Integrates with absorption chillers for air conditioning in commercial buildings.

· Disaster Relief: Deploys rapidly in emergency zones to supply hygienic hot water for medical and sanitation needs.


FAQ


Q: How does the system handle hard water or mineral deposits?

A: A built-in descaling valve flushes sediments automatically, while replaceable anode rods protect against corrosion in high-TDS (Total Dissolved Solids) water.

Q: What roof specifications are required for installation?

A: Each 100L unit requires 2.2 m² of space. Flat or sloped roofs with a load capacity of 30 kg/m² are suitable. Reinforced concrete or metal rooftops are ideal.

Q: Can I install the system myself?

A: While DIY installation is possible using provided manuals, professional installation is recommended to ensure warranty validation and OSHA-compliant safety.

Q: What is the ROI (Return on Investment) timeline?

A: Most users achieve full ROI within 3–4 years through energy savings, with payback periods shorter in regions with high electricity tariffs or government subsidies.


L3


Model

thermosiphon high pressurized  Solar Geyser Specification

    Quantity 20GP/40GP/40HQ (sets)

Solar vacuum Tube

Geyser Water Tank

Diameter    (mm)

Length (mm)

NO. (pcs)

Absorb area ()

Inner Dia. (mm)

Outer Dia. (mm)

Capacity

RNE-PC-10

58

1800

10

1.66

360

470

100L

52/106/139

RNE-PC-15

15

2.08

150L

45/92/112

RNE-PC-18

18

2.57

180L

40/80/96

RNE-PC-20

20

2.85

200L

38/76/93

RNE-PC-25

25

3.41

250L

32/64/77

RNE-PC-30

30

4.25

300L

26/52/63


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