In 2022, a married couple were electrocuted by a water heater in Cameron Highlands. Two years earlier, a local guitarist was found dead in his Gombak bathroom, apparently due to a faulty water heater. And across the causeway that same year, an elderly couple and their son were also killed due to an improperly wired water heater.
Incidents of electrocution while showering may seem rare, but the reality is that it can still happen.
These accidents can happen because of incorrect installation, failed safety devices, or lack of proper grounding. That’s why choosing a water heater that prioritises safety is so important.
When Your Shower Becomes a Danger
An instant water heater works by using an electric heating element to quickly warm up water as it flows through the unit. As water flows in, a sensor detects the flow and activates the heating element. The heat is transferred to the water, so you get hot water for your shower.
Normally, everything inside the water heater is safely contained. However, if there’s a problem, the high voltage electricity can escape into the water. And if the water coming out of the shower head is carrying an electric current, it flows through you, causing electrocution.
Electric shocks from water heaters usually come from a few common problems, like a faulty heating element, a cracked casing, or improper wiring or installation. For example, if the electrician does not follow proper safety guidelines, such as ensuring correct wiring or grounding, the risk of electrical faults increases dramatically. Sometimes, safety devices fail or are missing altogether, leaving no backup to stop electricity from escaping.
A lack of proper grounding is especially risky. Grounding acts as a safety net; it directs stray electricity safely into the ground instead of through your body. Without this, a small fault inside the heater can turn dangerous very quickly.
Apart from electrocution, it’s also possible for the water to get dangerously hot. If the water pressure were to suddenly drop (for example, when other people in the house turn on the taps), the water heater could put too much heat into too little water, and you could get scalded.
And when the other taps are eventually shut off, the sudden increase in pressure can also cause the shower water to suddenly become cold, making for an uncomfortable shower experience.
So, understanding the risks above helps us see why it’s important to choose a water heater that prioritises safety, while maintaining convenience.
Above: Changes in water pressure elsewhere in the home could lead to sudden temperature fluctuations during a shower. A sudden drop, and the water temperature could get dangerously hot. A sudden increase, and the water could become cold, making for an uncomfortable shower experience.
How Toshiba SensTemp™ Instant Electric Water Heaters Keep You Safer
Toshiba SensTemp Technology uses a smart design called Water-Electricity Separation. This means the water and the electrical parts don’t mix inside the heater. The water flows through a separate channel, away from the electric components.
Because of this clear separation, the chance of electrical leakage into the water is much lower than in traditional models where heating elements are submerged. This simple change makes a big difference in reducing the risk of electric shock.
Above: Difference between a Toshiba SensTemp Water-Electricity Separated heater vs a traditional heater.
Next, there’s a smart sensor inside the heater that checks the water flow and temperature every single second. The sensor, smart chip and heating element work together as a smart system that quickly responds to inlet water changes.
This means you get a steady, comfortable shower without sudden hot or cold bursts. This kind of precise control doesn’t just feel nice; it also prevents overheating, which can cause safety problems.
Above: Toshiba SensTemp quickly responds to changes in inlet water flow, allowing you to enjoy a stable temperature when you shower
Besides these, the heater is packed with extra SafeGuard System features to protect you and your home:
- Earth Leakage Circuit Breaker (ELCB) quickly cuts off power if it detects any leakage current, stopping shocks before they happen.
- Dry-heating Protection prevents the heater from running when there’s no water flow, avoiding dangerous overheating.
- Fireproof materials give it added durability and safety.
- IP25 waterproof rating means the electrical parts are well protected from water splashes.
- Resistance to transient voltage spikes keeps the heater stable even during power fluctuations.
Together, these features form a strong safety shield around you and your family. Not only do they reduce the risk of electric shocks, but they also boost the longevity of your water heater so you won’t need to replace or repair it as often. This is the kind of peace of mind that makes a real difference in everyday home life.
How To Know When It’s Time To Get a New Water Heater
The Malaysian Energy Commission (Suruhanjaya Tenaga Malaysia) has advised homeowners to replace water heaters that are more than 10 years old as older models do not meet the latest safety requirements.
Think for a moment about your own water heater. Does it have the safety features offered by Toshiba? Was the wiring done over 10 years ago? Is it properly grounded? Is it plugged into a proper power supply? Is the shower pipe still made of metal? If you’re unsure, it’s better to be safe than sorry.
Upgrading to a Toshiba water heater and using professional installation can save you from potential accidents and give you peace of mind every time you step into the shower.
Enjoy Savings on Your Toshiba Water Heater Installation
Toshiba is giving away RM120 discount vouchers on water heater installation for all purchases of SensTemp series water heater*. These vouchers are valid for installations done through Recommend.my before 31st October 2025. So you get top-notch technology with professional installation at a great price.
Upgrading to the Toshiba SensTemp™ Instant Electric Water Heater means more protection in your home, with steady, comfortable temperatures and built-in safeguards against electric shocks. Don’t compromise when it comes to your family’s safety and comfort.
Learn more about the Toshiba SensTemp™ Instant Electric Water Heater
Save RM120 on water heater installation
* Models include TWH-45EMC1PMY(K)-RS, TWH-45EMCPMY(S)-RS, TWH-45EMCPMY(K)-KB, TWH-45MCPMY(S)-WS and TWH-38EXPMY(G)
