100L Retrofit Evacuated Tube Solar Geyser

Upgrade your existing electric geyser with a 100L evacuated tube solar geyser conversion system, designed for South African homes wanting fast savings, better reliability and hot water during grid instability. This retrofit evacuated tube solar geyser setup uses high-performance evacuated tubes paired with your current high-pressure geyser, giving you solar-heated water without replacing your entire system.

Unlike full replacement systems, a 100L evacuated tube solar geyser conversion installs alongside your current geyser. Water is circulated using a 12V solar pump, ensuring consistent heat transfer from the tubes into your tank. Your existing electrical element remains in place for backup, so you always have hot water on cloudy days or during extended rainfall.

Evacuated tubes absorb heat exceptionally well — even in cold or partially overcast conditions — thanks to their copper-lined internal channels that boost thermal efficiency. This makes a retrofit evacuated tube solar geyser one of the most effective and affordable upgrades for households wanting immediate reductions in electricity usage.

All components are durable, weather-resistant and designed for low maintenance. The system is SABS approved, making it compliant, safe, and suitable for urban or rural installations. With a 5-year system warranty and long tube lifespan, this 100L evacuated tube solar geyser conversion offers long-term value and reliable performance throughout the year.

Key Features

• Converts your existing geyser into a solar geyser

• Uses efficient evacuated tubes for rapid heat absorption

• Retrofit evacuated tube solar geyser – no tank replacement required

• 12V solar circulation pump included

• Works with your current electrical element for backup

• SABS approved system

• Fast heating thanks to copper-lined inner pipes

• Excellent performance in cold and cloudy weather

• Reduces electricity usage immediately

• 5-year system warranty (T&Cs apply)

• Suitable for 100L geyser installations

Specifications

Capacity: 100L
System Type: Evacuated tube retrofit conversion
Primary Function: Solar heating using existing geyser
Circulation Method: 12V solar pump
Tube Type: High-efficiency evacuated tube collector
Tube Material: Copper-lined internal heat transfer
Backup Heating: Existing electric element (unchanged)
Warranty: 5 years (system)
Compliance: SABS approved
Ideal Roof Types: Pitched or flat roof
Compatibility: Standard high-pressure electric geysers

What’s Included

• Evacuated tube solar collector

• 12V solar circulation pump

• Controller (where applicable)

• Fittings and connectors

• Full installation kit

• 5-year system warranty

Ideal for How Many People?

A 100L evacuated tube solar geyser conversion is ideal for 1–2 people, depending on usage.