Geyser Installations

Approximately 40% of the installations of geysers do not comply with the SANS 10254 specification. In addition, of that 10% where dangerous!

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High-pressure geysers

Most modern geysers in South Africa are high-pressure geysers (hot water heaters).

Never work on the geyser yourself unless you are a licenced plumber and you know what you are doing! Geysers are high-pressure vessels and can explode.

Home inspectors report that the most common defect in South African homes is an incorrectly installed geyser. Notably, this defect is potentially dangerous and is mainly a result of untrained, or un-supervised workers installing geysers.

Exploding geysers kill people in South Africa every year.

Temperature and pressure release valves

All high-pressure geysers must have a temperature and pressure release valve (TPR valve). This valve controls two critical functions: pressure and temperature. Therefore, do not tamper with this valve!

If the thermostat fails and the temperature rises beyond 70°C, pressure increases. In this case, with the rising temperature, the TPR valve will release if it is working correctly. Furthermore, this happens either because of excessive heat or pressure.

If the TPR valve is faulty, the boiling point of water can rise above 120°C! The pressure will reach a point where the pressure tank ruptures. At this point, the water will turn into steam instantly. As a result, the 150 litres water in your geyser will now occupy 240,000 litres of space! Therefore, an explosion occurs of the ferocity of a half kilogram of dynamite ( approximately 2½ sticks). Not only will the damage be excessive, but, as a consequence, lives can be at risk.

Defective installations

In my experience, abou 4 in evey 10 geysers have not been installed correctly, therefore, it is a good idea to have your’s inspected!

Also, during periods of water cutoffs, do not use hot water or open hot water taps! You will burn out the geyser element!

Ensure that a home inspector or plumber inspects your geyser installation!

These videos show extreme cases of a geyser explosion:

Also, read the following: Geyser Explosion – Kimberley, Geyser explosion survivor has lost everything and  Geyser Warning – Durban.

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