The lifespan of an electric water heater largely depends on how it is used. If you take care of it, you can extend its usage for a few more days. The longer you use it, the more money you save in the long run. Today, I’m going to share with you a smart and efficient way to use your storage-type electric water heater so that you can enjoy the same convenience without unnecessary waste.
What is a Storage-Type Electric Water Heater?
A storage-type electric water heater is a fixed appliance designed to heat and store hot water for later use. It typically includes a temperature control system to regulate the heating process. These heaters are commonly found in homes because they are easy to install and relatively affordable. However, they require some time to heat up before reaching the desired temperature. With many brands available on the market, it’s important to choose one that meets safety standards. Always check for the 3C certification when purchasing, as these products are subject to national inspection requirements.
1) Most household water heaters operate on a single-phase 220V power supply, with a maximum power rating of around 2.5kW. In larger homes or villas with higher water demand, central systems may use more than 10kW.
2) Commercial models usually use a three-phase 380V power supply, and their power consumption can reach up to 50kW.
Advantages and Disadvantages of Storage-Type Electric Water Heaters
Advantages: They are safe to use and powered by clean energy. They can provide multiple outlets for showers, baths, and even washing vegetables or dishes. Installation is straightforward, and they are user-friendly.
Disadvantages: They tend to be bulky and require preheating before use. Once the stored hot water is exhausted, it takes time to refill. If multiple people are using the water at once, there might be delays during a shower. Also, unused hot water cools down over time, leading to waste. High temperatures can cause scale buildup, which requires regular cleaning and can reduce the unit's lifespan.
Storage Water Heater Capacity
The capacity of a storage-type electric water heater is measured in liters (L). The larger the capacity, the more hot water it can supply. Common sizes on the market include 10L, 15L, 40L, 50L, 60L, 80L, 100L, and even above 100L for special needs. For basic tasks like handwashing or dishwashing, a 10L–15L model is sufficient. For bathing, a 40L–50L unit is suitable for one person, while a family of two may need 50L–60L. A family of three should consider 80L–100L, and households with more than three members might need over 120L. If you often take baths, a 150L or larger unit would be ideal.
Energy-Saving Usage Tips for Storage-Type Electric Water Heaters
1) If you don’t use hot water frequently—like once every few days—you can turn off the heater when not in use. Turn it on an hour before you need hot water to save electricity.
2) For daily but light use, you can activate the heater one hour before use and switch off other non-essential functions to cut down on energy costs.
3) If you use hot water frequently and in large quantities, it’s best to keep the heater running all the time. Adjust the temperature based on your usage to maximize energy efficiency.
Safe Usage Practices for Storage-Type Electric Water Heaters
When installing an electric water heater, never attempt DIY installation. Avoid using poor-quality switches or sockets, and never use water pipes as grounding wires. Old wiring can lead to electrical leakage, which is dangerous. Always hire a professional for installation to ensure your safety.
In high-rise buildings, water pressure is higher due to secondary water supply systems. This increased pressure can affect the inner lining of the heater. To prevent damage, always open the safety valve and never block or adjust it without proper guidance.
Important Usage Precautions
Before heating, make sure the tank is filled with cold water. Only apply power after the hot water valve is opened and water flows out. While using the heater, keep the tap water flowing to ensure the tank remains full. If no water comes out when the valve is opened, disconnect the power immediately to avoid damaging the unit.
This concludes our guide on storage-type electric water heaters. There are two main types: instant and storage. While many prefer instant models for on-demand heating, they require strong electrical lines. Storage heaters, though limited in water flow, offer more flexibility and are great for multi-user households. Choose what fits your lifestyle best!
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