Convert Your Geyser to Solar
Don't replace your entire geyser - convert it! Save money with a solar conversion kit that uses your existing tank.
If your electric geyser is in good condition, you may not need to buy a complete solar geyser. A solar conversion adds solar collectors to your existing tank, reducing electricity costs by 50-70% while saving thousands on a full replacement.
What is Solar Geyser Conversion?
Solar geyser conversion involves adding solar collectors (panels) to your existing electric geyser tank. Cold water circulates through the collectors, heats up from the sun, and returns to your tank. Your electric element serves as backup for cloudy days. This costs 40-60% less than a full solar geyser replacement.
Solar geyser conversion involves adding solar collectors (panels) to your existing electric geyser tank. Cold water circulates through the collectors, heats up from the sun, and returns to your tank. Your electric element serves as backup for cloudy days. This costs 40-60% less than a full solar geyser replacement.
Conversion Options
| type | cost | pros | cons |
|---|---|---|---|
| Flat Plate Collector | R4,000 - R8,000 | Durable, long lifespan | Heavier, less efficient in winter |
| Evacuated Tube Collector | R5,000 - R10,000 | Better efficiency, works in overcast | Tubes can break |
| Thermosiphon Kit | R6,000 - R12,000 | No pump needed, reliable | Collector must be below tank |
| Pumped System | R8,000 - R15,000 | Flexible placement, more efficient | Pump adds complexity |
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Is Your Geyser Suitable?
Check these before converting:
- Geyser age: Less than 10 years old ideally
- Tank condition: No rust, leaks, or pressure issues
- Tank type: High-pressure tanks work best
- Location: Roof access for collector placement
- Insulation: Well-insulated tank retains solar heat
- Element: Working backup element for cloudy days
Conversion Process
What happens during conversion:
- 1. Assess existing geyser condition and compatibility
- 2. Install mounting frame on roof for collectors
- 3. Mount solar collectors in optimal position
- 4. Connect circulation pipes from collectors to geyser
- 5. Install circulation pump if using pumped system
- 6. Add temperature controller/timer
- 7. Test system and adjust settings
- 8. Set geyser timer for backup heating only
Expected Savings
| season | solar Contribution | savings |
|---|---|---|
| Summer | 80-90% | R400-R600/month |
| Spring/Autumn | 60-70% | R300-R450/month |
| Winter | 40-50% | R200-R300/month |
| Annual Average | 60-70% | R3,600-R5,400/year |
Price Disclaimer: Prices shown were verified on . Prices may change without notice. We earn affiliate commissions on qualifying purchases.
All prices are in South African Rand (ZAR) unless otherwise stated. Shipping costs may apply depending on your location.
Related Pages
Convert Your Geyser to Solar FAQs
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