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How much does an electric water heater cost? Learn how to calculate your consumption and how to save.

Daniel Salomon
2 days ago
2 min read

One of the most common questions before buying an electric water heater is: How much will my electricity bill be per month? In this article, we explain in simple terms how to calculate the energy consumption of an electric water heater, and what you can do to reduce your bill without sacrificing convenience.




⚙️ How is the energy consumption of an electric water heater calculated?

Consumption depends on three factors:

  1. Equipment power (in kW) Example: a 3 kW water heater.

  2. Hours of daily use Example: if it heats up for 3 hours a day.

  3. Price of kWh on your bill: Approximately between $120 and $180 per kWh in Chile (check in your municipality).

Simple formula:

Monthly consumption (kWh) = Power (kW) x Hours/day x Days of the month

🔎 Real example with a 3kW water heater used 3 hours a day : 3 kW × 3 h/day × 30 days = 270 kWh/month If the value is $150 per kWh → 270 × 150 = $40,500 approx.

💡 But don't worry… you can reduce that expense! Keep reading. 👇


✅ Tips to save money with your electric water heater

  1. Buy a thermos of the appropriate capacity. One larger than necessary wastes energy. 👉



  2. Take advantage of off-peak hours. Some households have cheaper electricity rates at night. Check with your electricity provider.

  3. Add a timer. Turning off the water heater when you don't need it (early morning, work hours) can reduce consumption by up to 40%.

  4. Keep your thermos well insulated to prevent heat loss. All our Termic thermoses are thermally insulated to keep water hot for longer.

  5. Consider renewable energy. If you have or plan to install solar panels, an electric water heater is your best ally. It stores the day's heat for the night.


📌 What if I compare it to a gas water heater?

A water heater may have a lower monthly cost, but it involves maintenance, safety, and access to the gas network. 👉 Check out this complete comparison between a water heater and a tankless water heater.


🔥 Looking for a thermos that won't break the bank?

With Termic electric water heaters , you get:

  • High efficiency

  • Superior insulation

  • National technical support

  • Affordable prices

🔗 Visit our online store: 👉 www.termoelectrico.cl

📲 Do you have questions or need help? Talk to our experts on WhatsApp: 👉 Click here to chat

 
 
 

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