FEATURES 19
• Retrofitting onto existing geysers for instant energy savings
• Installation must-knows
• Placement matters— good ventilation is needed to prevent freezing of the evaporator
• Integration with plumbing systems— incorrect setup can cause inefficiencies
• Electrical considerations— some systems require a dedicated power supply
Image by © Plumbing Africa
Heat pumps have been around for years, but with Eskom’ s instability, their demand is growing. For plumbers, offering heat pump installations alongside solar water heaters creates a hybrid system that ensures maximum energy savings year-round. Remember that heat pumps need to be serviced once a year.
Solar pumps and the future of off-grid water solutions As South Africa faces ongoing water security issues, solar-powered pumps are becoming a game-changer for homes, farms, and businesses.
What’ s available?
• Surface solar pumps are ideal for irrigation and transferring water from shallow sources
• Submersible solar pumps are designed for boreholes and wells, providing a reliable off-grid water supply
• Hybrid AC / DC pumps switch between solar power during the day and grid power at night, ensuring continuous operation
Many leading brands like Lorentz, Grundfos and Franklin Electric now offer advanced MPPT controllers that optimise solar power usage, reducing energy waste and improving performance.
For plumbers, getting involved in solar pump installations means expanding your service offering beyond water heating— tapping into agriculture, remote communities, and commercial sectors.
Solar installations can vary in size depending on needs. pumps will dominate the industry in the next five to ten years. More homeowners, businesses, and developers are mandating energy-efficient plumbing solutions, creating a steady demand for skilled professionals.
The opportunities are endless, and those who embrace this shift will not only increase their earning potential but also play a key role in South Africa’ s green transition.
“ The biggest challenge with solar thermal is not getting qualified and upskilled,” reminds Bach.“ The trick is to convince the consumer to upgrade to solar. Once a consumer understands the benefits and cost savings, the cost of the installation won’ t seem so steep.” PA
How to get qualified in solar-thermal For plumbers looking to officially certify in solar and heat pump installations, the following qualifications are essential:
• SANS 10106( Solar Water Heating) training
• Solar and heat pump courses from IOPSA, Blue Lever Education and TVET colleges
Many suppliers also offer product-specific training, helping plumbers specialise in specific brands.
With technical input from Patrick Gordon, Kwikot, Apollo Solar Technology, Ariston and UPP GRP.
Image by © Plumbing Africa
Why solar-thermal is the next big thing for plumbers Let’ s be blunt— South Africa’ s energy and water future is uncertain, but one thing is clear: solar thermal solutions are here to stay. Plumbers who stay ahead of the curve by upskilling in solar, heat pumps and solar
A commercial installation with heat pumps.
May 2025 Volume 31 I Number 03 www. plumbingafrica. co. za