The Fear of High Energy Bills from Water Heaters: Causes and Solutions
17.01.2025

Why Do Electric Water Heaters Consume So Much Energy?

The reasons for excessive energy consumption often stem from four main factors:

1. Outdated or Inefficient Models

Older or lower-quality electric water heaters are notorious for their lack of energy-saving features. These models often struggle to maintain water temperature efficiently, leading to unnecessary energy wastage. Without proper insulation or advanced heating elements, they consume more electricity than modern alternatives.

2. High Hot Water Usage

Frequent or excessive use of hot water, whether from long showers, dishwashers, or washing machines, can dramatically increase energy demand. Households with larger families or multiple hot water appliances operating simultaneously often face the highest bills.

3. Poor Maintenance Practices  

Over time, sediment can accumulate at the bottom of the water heater tank, particularly in areas with hard water. This sediment creates a barrier between the heating element and the water, forcing the heater to use more energy to achieve the desired temperature. Worn-out components, like thermostats or heating rods, further exacerbate inefficiencies.

4. Incorrect Thermostat Settings 

Setting the water heater thermostat too high is a common mistake. Many people believe this will provide hotter water faster, but in reality, it leads to excessive energy use and increased risks, such as scalding.

Effective Ways to Lower Energy Costs

Thankfully, reducing the energy consumption of your electric water heater doesn’t require significant sacrifices. Here are some practical solutions:

Upgrade to a Modern, Energy-Efficient Model 

Investing in a new water heater with energy-saving features can significantly reduce electricity consumption. Brands like Thermex offer advanced models equipped with better insulation, energy-efficient heating elements, and smart controls that optimize performance. While the initial cost may seem high, the long-term savings make it a worthwhile investment.

Perform Regular Maintenance 

Routine upkeep is essential for maintaining your water heater’s efficiency. Flushing the tank periodically removes sediment buildup, while inspecting and replacing worn components ensures the heater operates at peak performance. Simple steps like these can extend the appliance’s lifespan and prevent costly repairs.

Set an Optimal Thermostat Temperature  

Most experts recommend setting your water heater thermostat to 49°C. This temperature is sufficient for most household needs, reduces energy consumption, and minimizes risks of scalding.

Insulate Your Water Heater and Pipes  

Adding insulation to your water heater tank and exposed pipes is an affordable way to prevent heat loss. Insulation helps maintain water temperature longer, reducing the energy required to reheat water. This step is particularly effective in colder climates or unheated spaces like garages or basements.

Adopt Energy-Saving Habits  

Small changes in daily habits can add up to big savings. Encourage family members to take shorter showers and use cold water for laundry whenever possible. Running dishwashers and washing machines on their energy-efficient cycles can also lower hot water demand.

Conclusion

By understanding the causes of high energy consumption and adopting these practical solutions, you can significantly reduce the energy costs associated with your electric water heater. Whether it’s through upgrading to a modern model, optimizing thermostat settings, or simply changing daily habits, these steps ensure you enjoy a sustainable and cost-effective hot water supply.