For years, many South Africans have stuck with traditional geysers simply because of a few stubborn myths about instant water heaters. You’ve probably heard them: they don’t get hot enough, they use too much electricity, they’re unsafe…
Let’s set the record straight. Here are the five biggest myths about instant water heaters - and the facts that prove them wrong.
Myth #1: Instant water heaters don’t get the water hot enough
Reality: Modern instant heaters are designed to heat water instantly to the temperature you want - even for long showers.
Models like the Super Ducha 4T+ or Granducha use high-efficiency elements that maintain steady heat and strong pressure. You’ll enjoy the same comfort as a geyser, without the wait or the wasted energy.
Myth #2: They use more electricity
Reality: They actually save power.
Traditional geysers constantly reheat stored water, which wastes electricity all day. Instant water heaters only use power while you shower — nothing is stored, nothing reheated.
In fact, customers often see their electricity bills drop by up to 60% after switching.
Myth #3: Instant heaters are unsafe
Reality: Certified instant water heaters are built with multiple safety features — from temperature control to thermal cut-offs and proper earthing.
When installed by a qualified technician, they are as safe (or safer) than a conventional geyser.
Plus, there’s no large tank that can burst or flood your ceiling!
Myth #4: Maintenance is complicated
Reality: Maintenance is quick, simple, and far cheaper than a geyser replacement.
Most models only need a basic element or filter check once in a while. No tanks, no insulation, no leaks. Many customers go years without needing any servicing at all.
Myth #5: Instant water heaters don’t last long
Reality: With proper installation and good water pressure, instant heaters can last 5–10 years or more.
The best part? If a part ever needs replacement, it’s small and affordable — unlike replacing an entire geyser unit.
Instant water heaters aren’t just a modern trend - they’re a smart, safe, and energy-efficient solution for today’s homes.
You’ll get hot water on demand, save on your electricity bill, and never worry about running out mid-shower again.
👉 Want to learn more? Contact R&D Technologies today or browse our range of instant hot water solutions here