Rating of TOP-16 electric instantaneous water heaters for apartments. Selection tips and review of reliable models

This issue can be solved by making living conditions in poorly equipped apartments or private houses much more comfortable by installing an electric water heater - a device that will allow you not to depend on a centralized supply.

To find a model that suits all parameters, you should familiarize yourself with the basic selection criteria and learn more about manufacturers, new products and popular devices.

Rating of the TOP 16 best electric instantaneous water heaters

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Instantaneous electric water heater

The main feature of such devices and the difference from storage devices is that the water flow is heated not in a special tank, but when passing through the device itself. The heating element built inside increases the water temperature to a level of +45-60 °C, it is set programmatically.

Usually it is a rectangular container, rarely exceeds 30 cm on the long side, about 10 cm deep, and weighs about 2 kg. The modest dimensions allow the equipment to be mounted on the wall so that it does not interfere with other devices. Knowing the advantages and disadvantages of the equipment, you can consciously approach the choice: instantaneous water heater - which is better?

Advantages of instantaneous water heaters

• instantly dispenses hot water;
• due to its modest size, they can be installed even in cramped spaces, on the wall;
• allow you to set the desired heating temperature;
• do not require frequent maintenance.

Minuses

• require significant electrical power (up to 27 kW), due to this they are limited in application: models over 8 kW are usually installed in apartments with an electric stove, because In this case, the wiring will withstand heavy loads without causing a short circuit. Before purchasing, you should definitely discuss this issue with the electrician who services the house to decide which water heater is best to install;
• installation of powerful models (from 5-8 kW) includes grounding, devices are connected directly to the network - unlike their counterparts, which are supplied with a cord and plug;
• They work only with constant high pressure; with low pressure, the water becomes too hot, or even stops heating altogether, because the heating element protection is triggered. If there is a sharp drop in pressure and in the absence of protection, the heating element may burn out;
• on the upper floors of an apartment building, the water pressure is not stable; instantaneous water heaters will not be effective here. Installing a special pump that will increase the pressure in the supply line will help solve the problem, but this is an additional expense.

Installation of instantaneous water heater

The installation method depends on the type of flow equipment: pressure or non-pressure. If you understand the principle of their operation, then in the future there will be no difficulties in arguing which is the best electric water heater to buy for your home.

• Pressure. Due to the presence of constant pressure, they can produce hot water in large volumes simultaneously for several points (bath, shower, sink, sink). The device cuts into a pipe, which is connected through a tee to a cold water supply. This pipe can be branched around the house and use hot water from several taps. The device reacts to water pressure, turning on and off automatically (when the pressure decreases, it turns off). Requires more power (from 8 kW) and reliable electrical wiring, and costs more than the second type.

If you are choosing a water heater for your apartment: which one is better to buy? When you want to take a shower and wash dishes in the kitchen with water at a pleasant temperature, it is better to install pressure devices.

• Non-pressure. They should be installed only near the water point and provide hot water to only one functional location, so you will need to buy a water heater for each tap. The power range is up to 8 kW, they cannot boast of significant performance, and have a simpler design. Models are equipped with shower and kitchen attachments. Suitable for homes with unstable or low water pressure. Perfect for a country house, where they will serve well for several years. For apartments and large houses, pressure ones are more effective.

How to choose the power of an instantaneous electric water heater?

The task of the device is to manage to heat water to the desired temperature and in the required volume, and for this you need to correctly determine the power. Comparing this indicator will help you find out which water heaters from which company are better for a particular situation.

Manufacturers provide flow-through models with power from 3 to 27 kW:

• 3 - 3.5 kW - suitable for apartments of old buildings;
• 3 - 8 kW - they are connected to a regular 220 Volt outlet (single-phase voltage) after consultation with an electrician;
• 8 - 27 kW - used in apartments with electric stoves and sockets with a three-phase voltage of 380 Volts.

To choose the right power and determine which instantaneous water heater is better, you will have to remember the arithmetic and refer to the table:

Average hot water consumption

You will also need a special formula: P = Q*(T1 – T2)*0.073, where P is the power of the water heater that is required (kW); Q – water flow (l/min); T1 – water temperature at the outlet of the device (°C); T2 – inlet water temperature (°C).

Let’s make calculations using an example and understand which is the best electric water heater to purchase. A water heater is needed to take a shower. It is necessary that an average of 6 liters of heated water flow out of the device. Let's take a comfortable temperature for washing +38 °C. At the inlet to the heater, water is supplied at a temperature of +5 °C (calculation is made for the winter period).

These numbers need to be substituted into the formula: P = 6*(38-5)*0.073 = 14.45

That is, you will need a water heater with a power of 14 kW or more. If the equipment will be used for several water collection points at once, then the power obtained when calculating the consumption point itself must be doubled. Electricity consumption occurs only in those minutes when hot water is consumed.

Which water heater is better to buy based on performance?

If everything is in order with the electrical wiring in the apartment or house, the main criterion when purchasing a device is performance: the volume of water in liters that heats up per minute.

Typically, this characteristic is indicated in the technical certificate of the product. You need to compare the stated figure with your home water consumption. You can calculate it in a simple way: take an 8-liter bucket, turn on the shower and set it to the usual pressure and temperature. Note the time it takes to fill the bucket: if the container is completely filled in one minute, then the optimal performance of the future water heater is 8 l/min.

For example, flow-through electric models with a power of 3-8 kW produce from 2 to 6 liters of hot water in 1 minute. It is believed that this amount is quite enough to carry out emergency hygiene procedures.

Which brand's instantaneous water heaters are better: a review of popular models

The choice of a specific device depends on the desired performance and the power that the electrical wiring in the house can handle. No less important is the manufacturing company, which is responsible for the quality of its products with its own reputation.

Flow-through electrical equipment is presented on the Russian market:

• Electrolux (Sweden)
• Timberk (international holding)
• AEG, Clage, Bosch, Stiebel Eltron (Germany)
• Kospel (Poland)
• Hyundai (South Korea)
• Thermex (manufactured in Russia using Italian technology) and many others.

Let's talk about the most popular models of these brands (according to the Yandex.Market service, October 2021). The review will help you decide which water heaters from which company are better to purchase if you choose the instantaneous option.

Thermex Stream 350

• A rectangular water heater with dimensions 160x260x95 mm and a power of 3.5 kW (220 V).
• Installed on the wall, equipped with a tap, shower head, shower hose.
• There is an indication of inclusion. The manufacturer provides a 2-year warranty.
• Cost: from 1,949 to 3,500 rubles.

Advantages: compactness, ease of installation. Consumers note in reviews that for the price it’s a pretty good unit. Disadvantages: short power cord, noise during operation, the required high temperature is achieved only with low water pressure.

Electrolux Smartfix 2.0 5.5 TS

• Non-pressure device with a capacity of 3.1 l/min with a power of 5.5 kW (220 V).
• Designed to serve a single water point, equipped with overheating protection.
• It has very small dimensions of 270x135x100 mm, weighs only 1.3 kg, and is equipped with a shower head and hose, as well as a tap.
• Cost: from 2,429 to 4,180 rubles.

When asking which water heater is best for an apartment, owners often rely on the size of the product.

Advantages: buyers note the compactness of the device and reasonable price as a plus; at maximum power, water consumption and temperature are optimal.

Disadvantages: low-quality components may be found; to get hot water, you need to reduce the flow to a minimum. It is better to connect a residual current device to avoid short circuits in the apartment.

Stiebel Eltron DHC 8

• Instantaneous water heater designed for several water points (pressure).
• Capacity 4.1 l/min, power 8 kW (220 V), dimensions 200x362x105 mm.
• Has built-in overheat protection
• Cost: from 18,211 to 26,500 rubles.

Advantages: small dimensions, in the summer it can completely replace central hot water supply. Disadvantages: in winter there is not enough power to provide a comfortable temperature and water pressure for the shower.

AEG MP 8

• Pressure flow unit with a power of 8 kW (220 V).
• With a productivity of 4.4 l/min, it serves several water points.
• Dimensions 212x360x93 mm
• Cost: from 19,845 to 26,200 rubles.

Advantages: powerful device, heats water well, build quality. Ideal in the summer (when the central hot water supply is turned off), and at this time almost everyone thinks about which water heater will best save the situation. Disadvantages: there is no additional power control, requires a separate power line. To heat water in winter, you will need a more powerful device.

Timberk WHEL-7 OC

• Non-pressure model with a power of 6.5 kW (220 V), dimensions 272x159x112 mm.
• The device is designed to serve one water collection point.
• A safety valve is installed inside, there is an overheating protection system, and a heating temperature limitation function.
• Capacity 4.5 l/min, the unit is equipped with a tap and a water filter.
• Cost: from 2,042 to 4,250 rubles.

Advantages: ease of installation, price, great rescue during hot water supply outages. Disadvantages: after a while one of the heating stages stops working.

The best manufacturers

When choosing an instantaneous water heater, experts advise giving preference to equipment from trusted brands whose equipment is famous for its durability and reliability.

Among the best manufacturers are the following companies:

1. Electrolux is a Swedish developer, one of the world's leading manufacturers of professional and household appliances.
2. Thermex is a commercial and industrial company specializing in the development of high quality water heating structures.
3. Stiebel is a German company that has been producing electric heating equipment for many years.
4. CLAGE is a well-known German company that produces quality products at affordable prices.
5. Zanussi is an Italian brand that specializes in the production of household appliances for a comfortable life.

Which brand of instantaneous water heater is better to choose?

Among the huge variety of household appliances, it is difficult to find a good instantaneous electric or gas water heater. Experts recommend first familiarizing yourself with leading manufacturers to find a reliable brand for yourself. And after that, consider the assortment.

In 2021, the leading manufacturers of instantaneous water heaters were recognized as:

• Atmor is an Israeli company with a wide range of running water heating systems. Today it is the largest supplier of such devices to the Middle East market. A distinctive feature of the products is the largest number of quality certificates, which confirms their reliability.
• Timberk is a mid-priced Swedish manufacturer with the majority of its units created in China. The activity is entirely related to climate control and heating technology; there are many successful models in the assortment.
• Hyundai is a Korean brand with a big name, known all over the world. A large share of products are capacious household tanks with an optimal set of functions. Particular attention is paid to energy efficiency, that is, the creation of cost-effective devices.
• Stiebel Eltron is a German company that demonstrates high quality technology. Each unit of product produced is safe, as easy to use as possible, and energy efficient. The domestic market offers premium models of instantaneous water heaters.
• Electrolux is a Swedish company headquartered in Stockholm. The manufacturer supplies household appliances to more than 100 countries. The brand's catalog includes a series of instantaneous water heaters in the budget and mid-price range.
• Thermex is an international corporation offering the best instantaneous water heaters in the budget segment. The devices differ in capacity, type, purpose, and power. The production constantly introduces innovations thanks to the presence of its own scientific laboratory.
• Clage is a German company that presents instantaneous boilers for heating premium water. The production has been in operation for about 70 years, each unit of product is distinguished by a thoughtful design, focus on different customer needs, ergonomics, and energy efficiency. High safety is due to the introduction of an electronic control system.
• Evan is a domestic company that produces indirect boilers and electric water heaters of the budget series. Most of the products today are industrial models, as well as compact household appliances.
• Neva is a Russian company registered in St. Petersburg. In the domestic market, under this name you can more often find geysers, characterized by a simple control system, safety, and reliability. With good functionality, the products are inexpensive.
• Bosch is a German giant producing household appliances that needs no introduction. The range includes multifunctional geysers, electric tanks, boilers and much more. Deliveries are made to more than 150 countries around the world. There are several factories in Russia, most of the goods are sold on the domestic market at affordable prices.
• Roda is a German manufacturer of electric and gas water heaters. Their main feature is maximum efficiency, comfortable operation, and the introduction of the latest technologies into production.
• Rinnai is the largest gas equipment company in the world, originating in Japan in 1920. The main feature of gas boilers is an advanced proportional control system, due to which fuel consumption is reduced significantly. In addition to being economical, the equipment is safe, easy to operate, and has a long service life. Only original developments take part in the activities.

How to choose an instantaneous water heater for an apartment?

Having decided which devices from which companies are worth paying attention to, you can move on to analyzing the main technical characteristics of flow-through equipment.

Keep in mind! In order not to make a mistake, it is worth considering such parameters as:

• rated power consumption . A decisive criterion that influences the amount of water heated over a certain period of time. Models with a power of up to 6 kW are best installed in dachas, but for a house or apartment, the best option would be a device with a rating of 20 kW;
• performance. The choice depends on the specific purpose for which the structure is purchased. For example, a device with a rate of 4 l/min is suitable for taking a shower, but if the user wants to take a bath regularly, the required water flow rate is 8-10 l/min;
• heating element type. Tubular electric heater or heating coils. Heating elements take up more space, and scale forms faster on their surface, while the spiral elements remain clean due to high-frequency vibration;
• additional functions. In addition to the basic set of options, the device can be supplemented with a power-on and heating indication, a temperature limit program, and a programming function. A hard water protection system and remote control may be available;
• safety. The electrical appliance must be equipped with an overheating protection system. Working with such a device will not only be comfortable, but also absolutely safe;
• dimensions and weight of the structure. Despite the fact that water heaters are quite compact and easy to install, it is worth asking a consultant about these parameters. This will help you understand how best to install the structure.

What is an instantaneous water heater

Purely structurally, this device is a small container into which a heating element is inserted, connected to an alternating current network. Two pipes are also connected to the container. During installation, one is connected through flexible hoses to the water supply network, the second to the mixer. And this whole structure is enclosed in a beautiful case: metal or plastic.

The operating principle of an electric instantaneous water heater is as follows:

• as soon as we open the mixer to use hot water, water begins to flow from the water supply into the container with the heating element;
• the heating element itself immediately turns on;
• water, in contact with the latter, begins to heat up;
• and under pressure enters the opposite pipe, and accordingly into the mixer;
• closed the last one, the supply of both water and electric current to the device automatically stops.

Now you understand how a flow-through heater works. Let's move on to the selection criteria.

A diagram showing the operating principle of an instantaneous water heater Source spravkavrn.ru

Popular models

Note! An informative review and rating of popular models will help you understand the advantages, disadvantages and features of modern electric instantaneous water heaters.

All proposed devices are reliable, easy to control and have a high level of security - an ideal solution for the home.

Low output up to 3 liters per minute

Models of water heaters with modest performance indicators are a good solution for kitchen needs.

With such a device it will be convenient to wash hands, but taking a shower will be extremely uncomfortable for the user.

Rating of the TOP 3 best models of small productivity according to customer reviews and ratings.

Electrolux NPX6 Aquatronic Digital 2.0

Electric water heater with high technical performance, characterized by a long service life.

A device that perfectly combines compactness, high performance and efficiency.

For convenient visual control and independent temperature adjustment, the device is equipped with an informative display and touch buttons.

Overheating protection is provided by a special thermostat.

Specifications:

• power consumption – 5.7 kW;
• productivity – 2.8 l/min;
• maximum heating temperature – +50 °C;
• weight – 1.67 kg;
• Dimensions – 19.1×14.1×9.5 cm.

Advantages

• convenient temperature setting;
• high degree of protection against water;
• heating and switching indication;
• heating temperature limitation;
• acceptable cost of the model.

Flaws

• plastic flow restrictor insert;
• inability to use several points simultaneously;
• cable is not long enough.

Thermex Balance 6000

A classic device that does not require special skills to operate effectively.

A unit with a built-in spiral heating element that can operate efficiently even with low water pressure.

The equipment has compact dimensions and an elegant appearance, which allows it to be installed in any convenient place.

The electrical appliance turns on and off automatically.

Specifications:

• power consumption – 6 kW;
• productivity – 2.5 l/min;
• maximum heating temperature – +50 °C;
• weight – 1.4 kg;
• Dimensions – 19×15.7×9.8 cm.

Advantages

• unobtrusive design;
• stainless steel heating element;
• elementary control system;
• several water points;
• system of protection against switching on without water.

Flaws

• inconvenient assembly of the structure;
• work with an increased level of sound;
• easily soiled white body.

Stiebel Eltron IS 60 E

A worthy model from the mid-price line, guaranteeing fast and uniform heating of water.

Highly efficient instantaneous water heater, presented by a proven German company.

The device has a long warranty period and can serve without the slightest failures or breakdowns for many years.

Installation will not require much effort on the part of the owner - you can install the structure yourself.

Specifications:

• power consumption – 6 kW;
• productivity – 2 l/min;
• maximum heating temperature – +50 °C;
• weight – 2 kg;
• dimensions – 21x35x9.6 cm.

Advantages

• long warranty and operational period;
• high level of security;
• the model provides a power-on indication;
• intuitive control system;
• The set includes a shower head.

Flaws

• only one water point;
• you will have to buy a separate cable;
• the price is a little high.

Average productivity from 4 to 10 liters per minute

Medium performance devices are good for installing in the kitchen or bathroom.

It is worth noting! The electrical appliance will produce a fairly powerful jet, however, the unit will not be suitable for those who like to take a bath, but it will be just right for a shower.

The best models with average productivity from 4 to 10 liters per minute in terms of price and quality.

Stiebel Eltron DDH 8

Powerful device with built-in overheating protection for absolute user safety.

A pressure-type model, which is a miniature structure for supplying hot water to several water distribution points.

The unit is easily mounted in a vertical position, so there should be no problems with its installation.

The manufacturer also took care of safety - the device provides automatic protection against overheating.

Specifications:

• power consumption – 8 kW;
• productivity – 4.3 l/min;
• maximum heating temperature – +60 °C;
• weight – 1.9 kg;
• Dimensions – 22×27.4×9.5 cm.

Advantages

• convenient wall mounting method;
• automatic overheat protection;
• sophisticated design;
• instant heating of running water;
• three power adjustment options.

Flaws

• poor equipment;
• the cost is slightly higher than similar models;
• bends for connecting to water supply made of plastic.

Electrolux NPX 8 Flow Active 2.0

An innovative development with which you don’t have to worry about the problem of heating water at all.

A device with a simplified electronic control system, equipped with a high-power spiral heating element made of stainless steel.

The design automatically maintains constant water heating.

Thanks to this, the user will be able to carry out water procedures at any time convenient for him.

Specifications:

• power consumption – 8.8 kW;
• productivity – 4.2 l/min;
• maximum heating temperature – +60 °C;
• weight – 2.5 kg;
• dimensions – 22.6x37x8.8 cm.

Advantages

• informative instruction manual;
• long warranty period;
• ease of management and maintenance;
• presentable appearance;
• high heating rate.

Flaws

• many plastic elements;
• easily contaminated housing;
• poorly thought out package.

CLAGE CEX 9

Compact design, the power of which will be quite enough to provide hot water in large volumes.

Decent equipment that stands out among the variety of models on the modern market with increased productivity and build quality.

A special feature of the model is the possibility of remote control - a small remote control is included with the device especially for this purpose.

Specifications:

• power consumption – 8.8 kW;
• productivity – 5 l/min;
• maximum heating temperature – +55 °C;
• weight – 2.7 kg;
• Dimensions – 18×29.4×11 cm.

Advantages

• well thought out equipment;
• stainless steel heating element;
• possibility of temperature blocking;
• possibility of remote control;
• stylish design.

Flaws

• complex equipment setup;
• questions for the instruction manual;
• duration of the warranty period.

Electrolux NPX 12-18 Sensomatic Pro

An easy-to-use electrical appliance equipped with everything necessary to instantly heat water.

An electric water heater with simple touch controls, which is suitable for installation in a private home, city apartment, office or cottage.

The device is capable of providing several water collection points, maintaining the heating temperature within 30-60 degrees.

Thanks to the presence of a protective thermostat, overheating of the device is impossible.

Specifications:

• power consumption – 18 kW;
• productivity – 8.6 l/min;
• maximum heating temperature – +60 °C;
• weight – 4.4 kg;
• dimensions – 22.6x47x9.5 cm.

Advantages

• intelligent control system;
• absolute safety of use;
• wide functionality;
• the presence of a children's regime;
• water filter element included.

Flaws

• dimensions and weight of the structure;
• Installation may require professional assistance;
• noisy operation of the device.

Large capacity from 10 liters per minute

You should know! Powerful water heating equipment is the best solution for a large family.

The device can easily handle heating a large amount of water, doing it in a matter of seconds.

The device will be a good assistant both in the kitchen and in the bathroom - quickly, comfortably and extremely simply.

Thermex Topflow Pro 21000

High-performance equipment that will be an excellent solution for your home.

Instantaneous electric water heater with high power and heating speed.

The unit has several water collection points, a simple electronic control system and can automatically maintain the set temperature.

Specifications:

• power consumption – 21 kW;
• productivity – 11.8 l/min;
• maximum heating temperature – +60 °C;
• weight – 4.5 kg;
• Dimensions – 25.5×47.2×11.5 cm.

Advantages

• versatility of use;
• pleasant appearance;
• heating temperature limitation;
• high degree of protection against water;
• high performance.

Flaws

• impressive dimensions and heavy weight;
• inconveniently located wire entrance;
• overcharge.

Stiebel Eltron PEY 18/21/24

A well-designed device that guarantees high comfort of use.

A premium new product with microprocessor control, a sophisticated security system and a high-power spiral heating element.

The device is equipped with two modes: “eco” and “contrast shower”, and also has an automatic shut-off function.

Specifications:

• power consumption – 24 kW;
• productivity – 12.3 l/min;
• maximum heating temperature – +60 °C;
• weight – 3.6 kg;
• Dimensions – 22.6×48.5×9.3 cm.

Advantages

• presence of a remote control included;
• automatic overheat protection system;
• long warranty period;
• pre-installed self-diagnosis system;
• simple design.

Flaws

• dimensions of the structure;
• work with increased sound power levels;
• equipment.

Electrolux NPX 18-24 Sensomatic Pro

A universal device with touch control that stands out for its high performance.

A water heater with an intelligent control system that automatically responds to all basic operating parameters and maintains the optimal water heating temperature.

The device is equipped with a spiral heating element, completely isolated from water.

Specifications:

• power consumption – 24 kW;
• productivity – 11.5 l/min;
• maximum heating temperature – +60 °C;
• weight – 4.4 kg;
• dimensions – 22.6x47x9.5 cm.

Advantages

• Possibility of use in children's mode;
• simple wall mounting method;
• water filter element included;
• ability to program individual temperature;
• reliable protection against overheating.

Flaws

• sensor is too sensitive;
• easily contaminated housing;
• meager equipment.

Pressure models (for several water points)

Reference! A pressure instantaneous water heater is a small volume storage tank operating under water supply pressure, equipped with an inlet and an outlet.

The unit is capable of supplying hot water to several taps simultaneously (washbasin, bathroom, kitchen). Additional nozzles are not provided in the design.

CLAGE CEX 11/13

An ultra-modern three-phase device for quickly heating water, perfect for a family of four.

Pressure model with a repairable spiral heating element, designed for wall mounting.

The unit belongs to energy efficiency class A, which means that the user will not have to overpay.

Specifications:

• power consumption – 13.5 kW;
• productivity – 7 l/min;
• maximum heating temperature – +60 °C;
• weight – 2.7 kg;
• Dimensions – 18×29.4×11 cm.

Advantages

• stainless steel heating element;
• possibility of remote control;
• unobtrusive design;
• self-diagnosis function;
• presence of a thermometer.

Flaws

• display without backlight;
• the need to carefully study the instructions;
• complex installation.

Stiebel Eltron HDB-E 12 Si

An improved model characterized by a high degree of resistance to various external factors.

A pressure-type electric water heater with the ability to simultaneously supply several points of consumption.

The unit is powered by a three-phase network, has a simple electronic control system and a connection located at the bottom.

Reliability, high quality, safety – everything for comfortable operation.

Specifications:

• power consumption – 11 kW;
• productivity – 5.4 l/min;
• maximum heating temperature – +55 °C;
• weight – 3.6 kg;
• dimensions – 22.5x47x11.7 cm.

Advantages

• convenient vertical installation;
• several water points;
• presentable design;
• reasonable cost of the device;
• Detailed instructions included.

Flaws

• the snow-white body quickly becomes dirty;
• Noisy operation of an electrical appliance.

Electrolux NPX4 Aquatronic Digital 2.0

A reliable device that effectively combines high performance, power and ergonomics.

A simplified model with reliable overheating protection, a heating temperature limitation function and a small display.

The model contains spiral elements made of stainless steel - they have a long service life.

Included with the device, the buyer will find a set of fastening elements.

Specifications:

• power consumption – 4 kW;
• productivity – 2 l/min;
• maximum heating temperature – +50 °C;
• weight – 1.69 kg;
• Dimensions – 19.1×14.1×8.5 cm.

Advantages

• reasonable price;
• stable and silent operation;
• compact and ultra-ergonomic;
• no need for special maintenance;
• easy installation of the structure.

Flaws

• quite long water heating;
• low bandwidth;
• complex setup of an electrical appliance.

With faucet and shower head

Models with a built-in shower and tap.

Electrolux Smartfix 2.0 3.5 TS

A well-thought-out model, which is one of the best-selling on the domestic market.

A nice device from the budget line for one water collection point, equipped with a mechanical control system.

If necessary, the device can be connected to a stationary device, which will be an excellent solution during a hot water outage.

Specifications:

• power consumption – 3.5 kW;
• productivity – 2 l/min;
• maximum heating temperature – +50 °C;
• weight – 1.5 kg;
• Dimensions – 27×13.5×10 cm.

Advantages

• optimal power and performance indicators;
• conciseness and elegance;
• economical energy consumption;
• automatic shutdown function;
• convenience and ease of use.

Flaws

• The kit does not include a cord with a plug;
• flimsy crane design;
• delicate plastic body.

Zanussi 3-logic 3.5 TS (shower+faucet)

Decent equipment at an affordable price, with high technical characteristics.

The unit has a highly reliable copper heating element, a water filter element, and a mechanical control system.

On the body of the electrical appliance there is an indication of switching on and heating, which simplifies the process of use.

In addition to the main device, the package includes a faucet and a shower head.

Specifications:

• power consumption – 3.5 kW;
• productivity – 3.7 l/min;
• maximum heating temperature – +40 °C;
• weight – 1.5 kg;
• Dimensions – 27×13.5×10 cm.

Advantages

• simple horizontal installation;
• compactness and light weight;
• presence of a heating temperature limitation function;
• connection to a standard outlet;
• extended equipment.

Flaws

• work with high noise levels;
• short wire for connecting the device;
• unfinished switch valve.

Timberk WHEL-3 OSC

A presentable device whose functionality will pleasantly surprise even experienced users.

A model designed specifically for comfortable use in the summer, which will be appreciated by people who prefer to spend time in the country.

The unit comes in an extended configuration, so there is no need to purchase additional structural elements.

Specifications:

• power consumption – 3.5 kW;
• productivity – 1.9 l/min;
• maximum heating temperature – +85 °C;
• weight – 1.35 kg;
• Dimensions – 27.2×15.9×11.2 cm.

Advantages

• mounting hardware and shower head included;
• presence of a filter in the sealing ring;
• convenient connection to a standard outlet;
• almost silent operation;
• fast heating of water.

Flaws

• there is no power-on indication;
• wire of insufficient length;
• there is no adjustment valve.

Rating of the best instantaneous water heaters for 2021

The review is based on customer reviews, so the reader will be able to find out which heater is best to buy, as well as how much the device costs.

Instantaneous water heater Zanussi 3-logic 3.5 TS

The popularity of the model is due to its low price and high quality. Equipment productivity is 3.7 liters per minute. Designed for one water collection point (bath or kitchen), non-pressure mechanism. The maximum temperature of distributed water is 50 degrees. With mechanical control. There is an indication notifying about heating and switching on. Heat limit set. Protected from overheating and turns off when there is no water. The degree of protection against ingress according to international class is 4. Includes: filter, faucet, shower head, shower hose. Heating element – ​​heating element. Dimensions: 270*135*100 mm. Weight – 1.5 kg. Average price: 2300 rubles.

Instantaneous water heater Zanussi 3-logic 3.5 TS

Advantages:

• compact;
• easy to install and operate;
• produces rapid water heating;
• low price.

Flaws:

• used only for one water distribution point;
• low-power.

Instantaneous water heater Thermex Surf Plus 6000

A type of non-pressure water heater made in Russia, which can be taken to the country and used in the absence of hot water supply. Can be used for several water points. The indicator shows the moment the equipment is turned on. Protection system: from overheating and switching on without water. Water protection degree: 4. Spiral electric heating element. Power – 6 kW. Dimensions: 130*180*68 mm. Weight – 1 kg. Average price: 5390 rubles.

Instantaneous water heater Thermex Surf Plus 6000

Advantages:

• easy to use;
• fast heating;
• saving energy consumption;
• compact.

Flaws:

• The included bracket is very flimsy;
• separate power system.

Instantaneous water heater Electrolux NP6 Aquatronic 2.0

A popular electronics manufacturer presents a high quality electric water heater. One of the best models. Power – 6 kW. Produces 2.8 liters per minute. Maximum temperature – 60 degrees. The control is carried out mechanically. It is protected from overheating and turns off when there is no water in the water supply system. International class protection level – 4. Wall mounting method. Dimensions: 191*141*85. Weight – 1.42 kg. Average price: 6520 rubles.

Instantaneous water heater Electrolux NP6 Aquatronic 2.0

Advantages:

• warms well;
• strong pressure;
• well-known brand and proven quality;
• easy to install and operate;
• relatively low price.

Flaws:

• not found.

Instantaneous water heater CLAGE CEX 9

Capacity - 5 liters per minute. The maximum hot water temperature is 55 degrees. Power – 8.8 kW. Functionality: protection against overheating and water, there is a temperature sensor, there is an electronic display, a control panel, with a system self-diagnosis function, and there is also a limit on water heating. The kit includes filters for cleaning. High degree of protection against water ingress - 5. Spiral electric heating element made of stainless steel. Weight – 2.7 kg. Dimensions: 180*294*110 mm. Average price: 24,500 rubles.

Instantaneous water heater CLAGE CEX 9

Advantages:

• fast heating of water;
• electric control;
• high quality heating element;
• multifunctional;
• good pressure.

Flaws:

• overcharge;
• high power consumption.

Instantaneous water heater Thermex Stream 500

Water heater for one water distribution point. Power – 5 kW. The control is mechanical, there is a power indicator. Wall installation method. The set includes: faucet, shower head, shower hose. Dimensions: 160*260*95 mm. Average price: 3260 rubles.

Instantaneous water heater Thermex Stream 500

Advantages:

• budget price;
• 3 power levels;
• oversized;
• copes well with heating water.

Flaws:

• suitable for one point only;
• high power consumption.

Instantaneous water heater Stiebel Eltron DDH 6

Pressure water heater for several water distribution points. Produces up to 3.5 liters per minute. The control is carried out mechanically. Shows with a special indicator the switching on and the moment of heating. There is also a limitation on heating temperature. The highest degree of protection against water is 5. Heating element is a heating element made of material: copper. Power – 6 kW. Weight – 1.9 kg. Dimensions: 220*274*95. Average price: 14,000 rubles.

Instantaneous water heater Stiebel Eltron DDH 6

Advantages:

• heats water well;
• guarantee of long use;
• high degree of protection;
• great pressure.

Flaws:

• not very powerful.
• overcharge.

Instantaneous water heater Hyundai H-IWR2-5P-UI073/CS

Productivity – 3.6 liters per minute, power consumption: 5.5 kW. The water heater control is mechanical. There is a heating temperature limitation. The kit includes a water filter. Degree of protection against water – 4. Mounting method: wall. Equipment: faucet, shower head, shower hose. Dimensions: 248*153*95 mm. Weight – 1.16 kg. Average price: 2430 rubles.

Instantaneous water heater Hyundai H-IWR2-5P-UI073/C

Advantages:

• low price;
• heats well;
• qualitative.

Flaws:

• suitable for one object only;
• requires additional eyeliner;
• bad pressure.

Instantaneous water heater Atmor In-Line 7

Pressure water heater with a capacity of 6 liters per minute. Power – 7 kW. Suitable for multiple water distribution points. The control is carried out mechanically. Protected from being turned on in the absence of water and overheating. The heating element is made of copper, the number of internal elements is 2 pieces. Dimensions: 317*305*125 mm. Average price: 3700 rubles.

Instantaneous water heater Atmor In-Line 7

Advantages:

• easy to use;
• fulfills the manufacturer's requirements;
• powerful;
• inexpensive in price.

Flaws:

• consumes a large amount of electricity;
• often requires minor repairs after 1-2 years of use.

Instantaneous water heater Redring Powerstream 10

A pressure electric water heater that can supply hot water at several points. The maximum temperature reaches 60 degrees. Productivity is up to 7 liters per minute. Overheat protection installed. The heating element is spiral. Electricity consumption per 100 liters of water (t-44°C) - 3 kW. Dimensions: 307*160*74 mm. Average price: 13,500 rubles.

Instantaneous water heater Redring Powerstream 10

Advantages:

• heats water well;
• strong pressure;
• powerful.

Flaws:

• no external water temperature switch;
• high price.

Instantaneous water heater EVAN B1-7.5

Pressure heater for several water distribution points. Capacity – 3 liters per minute. Control is mechanical. An indication is installed to notify you that the device is turned on. There is overheat protection as well as temperature limitation. Degree of protection against water - 3. Heating element - stainless steel heating element. Dimensions: 645*250*180 mm. Average price: 14,000 rubles.

Instantaneous water heater EVAN B1-7.5

Advantages:

• heats water quickly;
• easy to operate;
• reliable.

Flaws:

• overall;
• high price;
• noisy switches.

conclusions

When you decide to purchase an electric instantaneous water heater for home use, you should listen to the recommendations of experts and remember a few important points:

• the basic criteria for choosing equipment are the rated power consumption, performance and type of heating element - it can be tubular or spiral;
• increased attention should be paid to the protection system - ideally, the unit should be equipped with overheating protection, which will significantly increase the level of safety;
• also to take into account the maximum temperature of water heating and the presence of additional functions - they will increase the cost of the device, but it will be much more convenient to use;
• Additionally, it is worth asking your consultant for information about the dimensions and weight of the structure, as well as the possibility of remote control using a remote control or smartphone ;
• The optimal solution for your home would be a unit from a trusted manufacturer of household appliances, the power of which will be sufficient for both washing your hands and taking a shower.

Availability and number of adjustments

When choosing a model of instantaneous water heater, it is worth looking at the control system for the operation of the device, which can be hydraulic or electronic.

Advanced products have adjustment panels on the front side of the housing. To save energy, they can operate in two or more modes with different power levels.

Without exception, all water heating devices are equipped with a start and stop button. It is convenient if the model provides the ability to regulate the water heating temperature. Typically the temperature range is from 30 to 70 degrees Celsius. This also contributes to economical energy consumption.

Non-pressure model with hydraulic control, equipped with a power indicator and a function for accelerated heating of flowing water