Geysers come in several types to cater to different needs. Learn what they are and why making the right choice matters.
Also called a tank water heater, a storage geyser is a popular choice because it does more than heat water; it stores it too. Cold water comes in at the bottom of the tank while the top heats, ready for use. Once the hot water is used up, the heater must be turned on again. Since storage geysers lose heat over time, the water needs to be used during this window period. The water heating limit is usually set at 60 or 75 degrees Celsius.
Safety measure: The body of a storage geyser can heat up significantly so make sure you don’t touch it. Rely on the LED indicator instead.
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Whereas a storage geyser stores hot water in a tank, an instant geyser/on-demand geyser/tankless geyser heats water as and when you need it. Such geysers rely on a heat source to heat water as it circulates through a pipe. This heat source may be gas or electricity. When you turn on a tap to let the water out, the heat source is switched off.
Safety measure: Ensure that there’s a sufficient flow of water to the geyser when the tap is turned off otherwise the heating coil can burn.
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A gas geyser uses gas to fire up a burner that heats water. Since combustion creates potentially dangerous by-products like carbon monoxide and carbon dioxide, they are released outdoors.
Safety measure: Install gas geysers in areas that are properly ventilated. Not doing so can lead to a build-up of dangerous carbon monoxide fumes that can suffocate and asphyxiate.
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An immersion rod is a simple piece of equipment that’s widely used. It consists of a coiled rod that heats water when it’s immersed into it. Inexpensive and easy to replace, the portable device can only heat water in containers like buckets, which means you don’t get hot running water. Immersion rods come in several sizes. Mini models are small enough to place into kettles and mugs to heat water for beverages. Standard sizes, meanwhile, are designed to heat water in buckets. Wattage ranges from a low 500W to a much higher 2000W.
Safety measure: Don’t stick your hand into a kettle/mug/bucket that has an immersion rod inside when it’s turned on. You can get electrocuted.
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If you live alone or don’t use a lot of hot water, a low-capacity geyser below 3 litres is ideal.
Households that use showers will need geysers with a higher capacity especially if there are more than 3 members in the family. A 31-50-litre geyser is recommended.
If you’re unsure whether to get a medium or large capacity geyser, one that falls within the 51-70-litre range may serve your needs well.
Large families require more hot water in which a big 70-litre- or more capacity geyser will suffice.