1. Understanding Direct Water Heaters
1.1. What Are Direct Water Heaters? How Do They Work?
For many, direct water heaters are still a relatively new device. How do they operate, and what precautions should you take when using them? These heaters have a compact design, utilizing modern and convenient electric resistance elements instead of traditional hot and cold water tanks. As a result, instead of storing water, they heat it instantly and flow it through showerheads. With these direct water heaters, there's no need to wait for hot water.

1.2. Pros and Cons of Direct Water Heaters
With such a convenient device, what are the pros and cons? Let's explore the pros and cons of direct water heaters to better understand the product before considering a purchase.
First, let's go over the advantages of these direct water heaters. They are an ideal choice for bathrooms with limited space due to their compact design, saving a considerable amount of space. You can almost instantly indulge in warm water without waiting, unlike with indirect water heaters. Users can rest assured as the product ensures high safety standards, avoiding burns or explosions. Additionally, direct water heaters integrate showerheads with various massage modes and water antibacterial properties.
In addition to the convenience and benefits for users, the machines also have drawbacks that you need to consider when buying and using them. For the machine to function well and efficiently, you need to install it in a location with high water pressure and a stable power source. The machine may cause electricity wastage for large families since it needs to heat water multiple times with each use. The maximum temperature that the machine can heat is only from 45 to 55 degrees Celsius. Therefore, the device is suitable for weather over 20 degrees Celsius. It may not be suitable for cold winter days with low temperatures, especially in the Northern Delta region.
2. Top 15 Popular Direct Water Heaters
2.1. Ariston SB35E-VN 3500W Direct Water Heater
Ariston SB35E-VN 3500W Direct Water Heater is a product with many outstanding advantages that you may consider using. The machine has a power of 3500W, weighs only 1.6 kg, and comes with a warranty period of up to 24 months. It is designed in a sophisticated and modern Italian style with elegant white color, suitable for any family bathroom corner. The machine has multiple heating levels, allowing you to adjust the temperature according to your needs. To ensure safety for users, the product has a comprehensive safety system such as anti-electric shock switches, EMC-compatible, extremely durable PCB electric circuits, and IP25 water resistance. You can use it with peace of mind without worrying about any incidents. Currently, the product is being sold for about 1,580,000 VND.

2.2. Ferroli Divo SSP 4.5S 4500W
This is one of the water heater products originating from Vietnam but with Italian standard quality thanks to modern production technology and machinery. Let's find out about the specifications of this product. The machine has a power of 4500W with a weight of 3.05kg. What is special about the structure of this direct water heater? The product is chrome-plated on the outside, making the machine design more luxurious and durable. The machine is integrated with a showerhead with 4 water discharge modes, meeting the diverse needs of many users. Additionally, the machine has an antibacterial mode thanks to Ag+ ions. Therefore, the showerhead is regularly purified, avoiding moss formation and water contamination. The booster pump system helps the water flow to be stable and strong. Thus, it eliminates the barrier of weak water pressure in your family, unable to install the machine. The product is priced at about 2,669,000 VND.
2.3. Centon CP007E 4.5kW EMC
Like other products, Centon CP007E 4.5kW EMC water heater has sensors from direct water heaters to help water heat up immediately. The machine has a compact and sophisticated design, making your bathroom more luxurious. With this new generation of Certon products, the showerhead has up to 5 different water spray modes, meeting the diverse needs of users. You can easily adjust the temperature with a rotary knob on the showerhead. Especially, the machine is quite safe for users with ELCB shock protection function. When there is a current leakage, the machine will automatically disconnect to avoid dangerous situations such as electric shock or explosion for users. The product has a power of 4500W with dimensions (360x240x110)mm. The product is currently sold on the market for about 2,850,000 VND.
2.4. Panasonic DH-4NP1VS 4500W
Panasonic is a trusted brand in home appliances, particularly known for its direct water heaters. The Panasonic DH-4NP1VS 4500W is a hot water machine with an integrated showerhead featuring an elegant oval design and 3 water spray modes suitable for various user preferences. Its compact and versatile design allows for installation in different positions in your bathroom. Made from highly durable ABS plastic, this machine is both insulated and waterproof, ensuring longevity and user safety. Additionally, the showerhead of this direct water heater has antibacterial properties thanks to Ag+ ions, safeguarding users' health. Currently, the Panasonic DH-4NP1VS 4500W direct water heater is available in the market for around 3,990,000 VND.

2.5. Alpha M3E 3500W
The Alpha M3E 3500W is an affordable line of water heaters offering diverse features and good quality, ideal for your family this winter. It features an integrated showerhead with 5 water spray modes, advanced ELCB shock protection technology, IP25 waterproof design, and built-in leakage sensor, ensuring user safety. Currently, the Alpha M3E 3500W direct water heater is available in the market for only 2,199,000 VND.
2.6. Electrolux EWE451HB-DWS2
This is a line of direct water heaters from the Swedish brand. Recognized for its reliability in the market, the Electrolux EWE451HB-DWS2 product doesn't disappoint with its impressive quality. With a power output of up to 4500W, it ensures user safety with an ELCB safety switch and an intelligent anti-scalding system. Its compact design doesn't take up much space in the bathroom and can be installed in any position. This model is priced at approximately 3,399,000 VND and is among the top 10 energy-efficient direct water heaters with an affordable price tag.
2.7. Alaska H-45W 4500W
Alaska's direct water heater features a sleek and lightweight design, weighing only 1.7kg. Despite its lightweight, it's highly durable with scratch-resistant materials. With the Alaska H-45W 4500W water heater, you can easily adjust the temperature with a rotary knob. With a power output of 4500W, it can heat water in just a few seconds, eliminating the need for long waits. Currently, the product is available in the market for around 2,290,000 VND with a 12-month warranty period.
2.8. LE-7000EP 4500W
This is a line of water heaters under the Legend brand. The Legend LE-7000EP 4500W product features splash-proof and water-resistant design, preventing water from entering the machine, reducing the risk of short circuits and extending the machine's lifespan. It comes with a showerhead with 5 customizable water spray modes. The built-in booster pump ensures a strong and steady water flow during usage. Additionally, it's equipped with a relay that automatically shuts off when the temperature reaches 55°C, preventing scalding risks. Besides its excellent functions, the machine also has a compact design for easy installation. Currently, the machine is available in the market for around 3,050,000 VND.
2.9. Beko BWI45S1A-213
Beko's water heater product line, manufactured in Malaysia, meets European standards. Alongside other products like refrigerators, ovens, and washing machines, the direct water heater is also outstanding. You can refer to reviews of Beko's water heaters to understand more about the product.

2.10. Maxvic 45ESP 4500W
This is a line of water heaters from Malaysia with European standard quality and technology. Similar to other models, the Maxvic 45ESP 4500W water heater features a showerhead with 5 water flow modes and a booster pump to ensure even water flow. The machine also incorporates ELCB shock protection technology to international standards. With a power output of up to 4500W, the machine can heat water quickly while saving energy for users. Currently, the convenient booster pump integrated water heater is priced around: 2,500,000 VND.
2.11. OTTOWA TE45P01
OTTOWA is a brand that manufactures direct water heaters in Vietnam, known for its compact and convenient design, suitable for small hotels and guesthouses. The machine has a temperature adjustment knob with a maximum of 55°C. The machine's shell is made of heat-resistant and waterproof plastic. The product is integrated with a showerhead and a leakage protection switch. Currently, the OTTOWA TE45P01 is available on the market for around 2,590,000 VND.
2.12. Midea DSK45Q
Midea is renowned for providing high-quality products at super reasonable prices for consumers. Their direct water heater is no exception. The machine is equipped with all the necessary heating and safety features such as ELCB shock protection switch, ... Currently, the machine is available on the market for 1,390,000 VND.
2.13. Ariston VR-M4522E-BL
The machine boasts a sleek and modern design, suitable for any bathroom space. Prioritizing the safety of the product, the machine is installed with a synchronized safety system TSS with ELCB switch and EMC-compatible equipment. Currently, Ariston VR-M4522E-BL water heater is priced at around 2,199,000 VND. You can also refer to additional reviews of Ariston water heaters and other prominent brands to choose the right machine for your family.
2.14. EMC Centon M777E 6000W
The EMC Centon M777E 6000W direct water heater features a compact design, integrated with a 5-mode showerhead. With a whopping power output of 6000W, the machine helps minimize the time needed to heat water. This range of direct water heaters, priced from 2-5 million VND, is the choice of many Vietnamese families.

2.15. Electrolux EWE351BA DW
The machine features technology that heats water in just a few seconds after it flows through the heating coil, making winter showers no longer a daunting task. The machine has a sensitive electrical leakage protection system along with the ability to assist in maintaining stable water flow. Currently, Electrolux EWE351BA DW is priced at around 2,650,000 VND.
Above are some useful information, hopefully can assist you in selecting the product. Don't forget to also check out more direct water heater products from reputable brands with many offers on Mytour.vn.