What is Solar Water Heating?

Solar water heating is a system used to heat water using energy generated by the suns’ rays.

  • Solar water heaters can be either active or passive. An active system uses an electric pump to circulate the heat-transfer fluid; a passive system has no pump. The amount of hot water a solar water heater produces depends on the size of the system, the amount of sun available at the site, proper installation, and the tilt angle and orientation of the collectors.

  • Solar water heaters are also characterized as open loop (also called "direct") or closed loop (also called "indirect"). An open-loop system circulates household (potable) water through the collector. A closed-loop system uses a heat-transfer fluid (water or diluted antifreeze, for example) to collect heat and a heat exchanger to transfer the heat to household water.

  • It dramatically saves on the costs associated in heating water by reducing the amount of electricity needed.
  • By using sunlight to heat water instead of fossil fuel produced electricity, fewer pollutants are being released into the environment.
  • Immediate reduction in monthly electricity bill of 30% - 50%.
  • Immediate protection of future price hikes, as your geyser is the largest consumer of energy.
  • The less energy you consume, the less energy tariff you are likely to pay.
  • It greatly reduces your carbon footprint.

  • A quality solar system should save approximately 80% of electricity used in heating water.

  • Assuming an average household uses 50% of their electricity to heat water, this translates to a 40% saving on your total energy/electricity bill.

  • A minimum of 50 L of water is utilized per family member.
  • When it comes to solar, the bigger the better.
  • The idea is to store as much of the suns energy as possible.
  • A single 200L solar water heater should suffice for most homes with 4 family members.
  • Each application is unique to home owners needs and consumption.
  • An assessment is advised by the approved installer before a solar water geyser is purchased.

  • Yes you can.
  • It is possible to retro-fit any high pressure geyser
  • Our experienced and well trained crew can undertake any possible fitments.
  • You may also qualify for a substantial Eskom rebate, further reducing overall costs.
  • An assessment is advised prior to purchase of the solar system.

  • The solar system must have been tested by S A N S and must have approval in terms of Safety, Thermal and Mechanical parameters.
  • Be supplied by an Eskom Accredited Supplier.
  • Be installed by registered installer.
  • Offer a minimum of a 5 year warranty.
  • Have an approved timer installed and set by a qualified electrician.

Why the SANS Mark of Approval?

The SANS mark takes the test report and adds an evaluation of the manufacturer’s ability to consistently produce quality solar water heating systems.

This means that if the testing indicated a high quality, durable and safe solar water heater design, and the manufacturing quality audit indicated that the manufacturing facility can manufacture high quality products consistently, the SANS will allow the manufacturer to use the SANS mark.

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