Solar Geyser Installation & Maintenance

Why Change To Solar?

Heating up a geyser accounts for 40 to 60% of your electricity bill. Although installing a solar geyser seems expensive, you will surely reap the rewards monthly. With the cost of electricity always on the rise you might as well take advantage of the sun! 

Going Solar means Going Green. You’re not just making it easier on your budget but on the environment too. 

What Is A Solar Geyser?

Solar water heating (SWH) is the conversion of sunlight into heat for water heating using a solar thermal collector. A variety of configurations are available at varying cost to provide solutions in different climates and latitudes. SWHs are widely used for residential and some industrial applications.

A sun-facing collector heats a working fluid that passes into a storage system for later use. SWH are active (pumped) and passive (convection-driven). They use water only, or both water and a working fluid. They are heated directly or via light-concentrating mirrors. They operate independently or as hybrids with electric or gas heaters. In large-scale installations, mirrors may concentrate sunlight into a smaller collector.


Water moves through the solar collector and into a geyser with the help of electrical pumps and controls, or via a natural thermos phoning process.


Instead of heating water, the solar collector heats a “heat transfer” fluid, such as Glycol. The Glycol flows in the sealed piping of a heat exchanger, where it is surrounded by water. The water then indirectly picks up the heat from the Glycol and is then pumped into a geyser. An alternative to an indirect system would be Evacuated Tubes.

Solar Geyser Maintenance

Like everything else, Solar Heaters also get older and go through some wear and tear. With some love and care you can avoid certain problems and prolong the life span of you system.

What items should I monitor for my solar water heater to work properly?

Check the following points regularly to ensure the proper operation of your solar water heater:
  • Check the condition of the thermal insulation of the external piping, which birds often peck at to use in making their nests.
  • Does a warning message or flashing light appear on the control box? Make sure that the probe wire has not been damaged by birds.
  • Check that the passage through the roof is still watertight.
  • Inspect connections and valves to make sure there is no leak.
  • Make sure dead leaves aren’t covering the sensors.
  • Check the pressure on the pump unit of the solar power installation.

Every three years, call in a qualified technician

Only a professional technician like Optimus Plumbing can:
  • Check and, if necessary, replace your solar water heater’s pump, seals, valves,;
  • Check that the expansion tank is in good condition and that the settings are correct;
  • Check the acidity level (pH) and the flow rate of the liquid which circulates in a closed circuit within the panels. Over time, the liquid will degrade and may cause the pipes to freeze. It should be changed at least every two years.

In need of a professional? Contact Optimus Plumbing

Call Now