Bosch geysers (this is the common name given to instantaneous water heaters) - a device in which cold water, flowing through tubes around a heated heat exchanger, is heated and supplied to the consumer at a given comfortable temperature. Bosch geysers heat water using energy obtained during gas combustion.

At the end of the 19th century, the designers of the Bosch concern first designed a gas water heater. The device has undergone numerous modernizations over time and in our time represents a fully automated product, which is still in demand in households where, for a number of reasons, there is no centralized supply of hot water.

Today, instantaneous water heaters are produced by companies all over the world; Bosch is rightfully considered the leader in the production of these products. The Bosch concern offers the consumer a wide range of devices with different power characteristics that can satisfy all the homeowner’s needs in heating the required volume of liquid.

Modern Bosch geysers are capable of heating water online. The owner does not need to waste time waiting for the required volume of water to warm up. The instantaneous water heater is stuffed with all kinds of sensors and valves that allow you to obtain a comfortable temperature at the point of water collection. Bosch geysers, regardless of model, are equipped with power modulation.

Thus, as water consumption increases, the heating intensity automatically increases. If the consumer reduces the pressure by closing the tap, the burner automatically reduces the flame, reducing the intensity of work. The main advantage that unites Bosch geysers is energy efficiency and cost-effectiveness, which result in significant financial savings in the form of gas bills.

Before we begin our review of the Bosch instantaneous water heater, we suggest you decide on the necessary parameters of the device that are suitable for you. There is no need to buy a Bosch geyser with a “reserve” of power; this will only lead to high initial costs and subsequent excess consumption of gas and, as a consequence, financial resources.

On the other hand, the choice should cover all needs for hot domestic water consumption. We told you how to choose a Bosch gas water heater twice, this and the second time, in them you will find seven answers to basic questions.

Geyser BOSCH Therm 2000 O W 10 KB

Bosch geysers open the series of devices with the initial model Therm 2000 O. Despite the entry level, the budget device includes all the minimum required parameters to satisfy households in the constant and comfortable consumption of heated water.

A narrow Bosch Therm 2000 O gas water heater is installed in a place where sufficient air is guaranteed, in a well-ventilated area - usually in the kitchen.

Therm 2000 O Technical equipment

• The mass of the structure is 10 kg.
• Productivity 10 liters per minute;
• The copper heat exchanger is made by high-precision ultrasonic soldering;
• Stable performance indicators with reduced pressure in the water main (from 0.15 bar)
• Electric ignition from two batteries with a voltage of 1.5 volts;
• The automation, based on a signal received from a special sensor, will block the gas flow in case of overheating of Therm 2000 O.

Therm 2000 technical data

Gas instantaneous water heater Bosch Therm 4000 O WR10/13

If in your home there is a problem with ventilation and natural smoke removal is difficult, then you should pay attention to the newest model Therm 4000 O, which is specially designed for such cases. Bosch Therm 4000 O NEW geysers are protected against reverse draft by means of a special sensor. Therm 4000 O NEW is supplied to the domestic market with two power options under the names: WR10-2P S5799 And WR13-2P S5799. Installation in rooms with permanent residence is allowed; as a rule, the device finds its place in the kitchen space.

Therm 4000 O NEW Technical equipment

• The weight of the WR10-2P S5799 structure is 11 kg. WR13-2P S5799 – 13 kg.
• Piezoelectric ignition;
• Hot water production WR10-2P S5799 10 liters per minute;
• Heated water production WR13-2P S5799 13 liters per minute;
• A water pressure of 0.1 atmosphere is sufficient to turn the device into operation;
• The power and water flow are set manually and separately from each other;
• The igniter burns continuously in standby mode;
• Equipped with an atmospheric burner made of stainless alloy, with factory settings for natural gas operation. In case of need to reconfigure to work from liquefied gas, the company’s engineers took care of a set of retrofitting jets;
• The ionization sensor is responsible for monitoring the presence of flame;
• The automation, based on a signal received from a special sensor, blocks the gas supply in case of overheating of Therm 4000 O.
• The copper heat exchanger is manufactured using high-precision ultrasonic soldering. Operating time – 15 years;
• Stable performance indicators with reduced pressure in the water main (from 0.15 bar).
• Hot water outlet equipped with a temperature limiter.

Therm 4 000 O NEW specifications

Gas water heater Bosch Therm 4000 S New generation WTD 12 AM E23

Geysers Bosch Therm 4000 S WTD 12 AM E23, WTD 15 AM E23, WTD 18 AM E23 – The company's engineers equipped it with a closed-type combustion chamber. These devices will be the optimal answer to the problem of installing the device in an apartment or country house where there is no stationary chimney.

The closed combustion chamber minimizes the likelihood of a burning smell, maintains a comfortable temperature regime and does not burn oxygen in the living space.

Coaxial pipe system 60/110 mm. completely replaces the bulky traditional chimney and copes well with the flow of combustion air and the removal of combustion products.

Therm 4000 S Technical equipment

• The turbofan removes combustion residues through a system of coaxial pipes measuring 80/110 or 60/100; the 80/110 adapter is not included in the device.
• The atmospheric burner is made of stainless metal, with factory settings for operating on natural gas. In case of need to reconfigure to work from liquefied gas, the company’s engineers took care of a set of retrofitting jets;
• A water pressure value of 0.1 atmosphere will be a sufficient condition for turning the device into operation;
• The inlet water pipe is equipped with a temperature and flow sensor;
• Electronic ignition from a 220 V network;
• The ionization sensor is responsible for monitoring the presence of flame;
• Set of protective devices against freezing;
• The online temperature is shown on the LCD display. If, after self-diagnosis, a malfunction is detected, then the error is indicated with a graphical representation of the code;
• The copper heat exchanger is welded using high-precision ultrasonic soldering. Operating time – 15 years;
• Electronic modulation of power and flow allows maintaining the set value of the hot water supply mode at the outlet (from 35 to 60 °C)
• Bosch geysers monitor the temperature reading of the heated liquid with an accuracy of plus or minus 1˚ C°;
• Volatility dependent on voltage 220 V.

Therm 4000 s operating instructions are posted on the resource in the section

Therm 4 000 S specifications

Geysers Bosch Therm 4 000 S Trouble-shooting

Gas water heaters Bosch Therm 4000 S, O Device

Geysers Bosch Therm 4000 O series

Yes, don’t be surprised, it seems like we were just disassembling a device with the same name with the index NEW - new generation. Nevertheless, Bosch did not stop the production of three copies of instantaneous water heaters of the Therm 4000 O series, namely:

The power range of Therm 4000 O is between 17 - 26 kW, from a technical point of view this assumes a steady flow of heated water of 10-15 liters per minute, taking into account a delta of 25°C from the initial to the final state. Bosch WR 10/13/15 geysers retain a number of advantages, such as time-tested, intuitive and easy-to-use control controls.

Additional advantages of a Bosch geyser include simple installation, elegant design and compact dimensions. Multi-level degrees of protection and safety elements provide the device with optimal security, without increasing the cost and without making it an expensive product segment. On our resource, in the Bosch gas water heater section, you can find the Operating Instructions for Bosch Therm 4000 O, on the page.

Therm 4 000 O specifications

Geysers Bosch Therm 4 000 O Trouble-shooting

Geysers Bosch Therm 6000 O gas instantaneous water heater WRD 10 13 15 2 G

The Bosch engineering department equipped the Therm 6000 O geyser with a built-in generator. Technological solution HydroPower - modernthe ignition unit freed a person from participating in the process of igniting the device, and made the operation of the model fully automated.

The flow of water after opening the tap begins to rotate a small turbine, which gives impulse to the hydrogenerator. This in turn generates an electric current, which supplies it to the electronic unit of the device produces an electrical discharge that helps start the Bosch gas water heater.

Inside the domestic market, we can find three modifications: WRD 10-2G, WRD 13-2G, WRD 15-2G, where the first digital designation indicates the maximum fluid flow rate measured in liters per minute.

A small but multifunctional screen is located on the control panel, displays the temperature or informs with a code about a detected error in the operation of the device. The required temperature value is set by a mechanical regulator and is maintained automatically throughout the entire service life.

Therm 6000 O technical equipment

• HydroPowe's technology solution does not require a constantly burning wick flame. Automatically, without a piezoelectric element or batteries, without human intervention, the device ignites after opening the tap from the built-in hydrogenerator.
• The automatic mode of the device independently maintains the temperature set by the owner, even during moments of fluctuations in pressure values;
• Sufficient to turn on the device, the water pressure value is 0.35 Atm
• Continuous operation does not require breaks or other time restrictions;
• The declared service life of the heat exchanger is 15 years. Material – copper
• In case of overheating, it will be blocked for cooling based on a signal from the safety sensor;
• Gas mixtures of smoke under the supervision of sensors;
• Ionization currents monitor the presence of a flame;
• The LCD screen constantly shows the temperature. If a breakdown occurs, it displays an image of the error in the form of a specific digital code;
• Stainless steel burner.

Therm 6 000 O specifications

Gas water heaters Bosch Therm 6000 S WTD 24 AME

The industrial model is represented by one Therm 6000 S WTD 24 AME device. The power of the Therm 6000S water heater is enough to effortlessly heat 24 liters per minute of liquid passing through it to a hot state. Bosch Therm 6000 S geysers have a design solution that allows the devices to be combined in a cascade (maximum 12 pieces).

Thus, in total, Bosch geysers produce a continuous flow of heated water in the amount of 288 liters per minute. By the way, this solution does not require electricity consumption while waiting, since water heating starts when there is a need.

Water is heated only to the values ​​​​set by the user, without changing the parameters, even with pressure fluctuations. This ensures complete absence of discomfort during operation of the entire cascade chain of devices.

Therm 6 000 S specifications

Bosch geysers of the new Therm 8000 S series

Increased efficiency of liquid heating is achieved by using the latest condensation, innovative operating method. Therm 8000 S achieves an efficiency value of 100%. The productivity of the industrial device allows you to prepare 27 liters per minute of heated water. The design solution for working together in a single cascade of up to 12 devices at a time provides a constant flow of hot water supply in the amount of 324 liters per minute.

Bosch Therm 8000 S geysers are designed to be used with preheated liquid; a good example is the combined use of a solar energy system in the design of collectors. In addition, the water valve of the series is equipped with an electric drive.

Therm 8 000 S specifications

Therm 6000 S, 8000 S technical equipment

Geysers Bosch Multi-level security system

• A special sensor that monitors the temperature in the chimney is responsible for sending a timely signal to the valve, which shuts off the flow of gas in the event of a draft failure;
• The presence of fire is monitored by the ionization electrode;
• The control unit receives the heating temperature signal from the excessive heating sensor (negative temperature coefficient (NTC) resistor) located in the heat exchanger. When it detects excessive heat, it locks the device;
• Safety elements: – sensor monitoring temperature readings of water at the inlet and outlet pipes; Limiters t° C° – closed housing sensor;

Gas water heaters Bosch Therm 6000 S, 8000 S Device

The operating instructions for Bosch Therm 6000 S are located in the Bosch section, on the page. The manufacturer's warranty is limited to a period of 24 months. The operational service life of the product is at least 15 years. The list of service partners is presented in the form of an interactive map, where you can easily find the nearest repair service provider.

BOSCH geysers hold a leading position in the Russian market. The main advantages of the developments of the presented brand are long service life and reliability. To ignite the column, low water pressure is required. The list of advantages can be supplemented with the following characteristics:

• compact dimensions, which allows you to install and use speakers even in limited space
• economical to use- work begins only after the water starts
• wide range of models, allowing to satisfy the needs of all categories of buyers
• modern design
• ergonomics

Criteria for choosing a BOSCH geyser

Choosing the right water treatment plants ensures future convenience. When studying the assortment in the catalog of our online store, it is recommended to pay attention to the following technical parameters:

• power
• method of igniting the main burner
• flue diameter
• combustion chamber type

Unit power

Water heater performance is the main selection criterion. It directly depends on the number of water intake points in an apartment or private house. If a water heater is needed to supply hot water in several rooms simultaneously, then it is better to order powerful equipment with several taps. For a family of 3-4 people, a unit whose power will vary from 20 to 25 kW is ideal.

If you have any questions or need qualified assistance, please contact our managers. They provide technical consultation for each client individually and help make the right choice of the most suitable model.

Main burner ignition method

This indicator largely determines how convenient the equipment will be to use. No matches are needed to operate the device. Modern developments from BOSCH are equipped with the following types of ignition:

• semi-automatic ignition (piezo ignition)- there is a special button that produces a spark; This design is easy to use
• automatic system- when water enters the water heater, the burner automatically turns on; the unit is powered by batteries, which need to be changed over time
• hydrogenerator- the columns of the presented type are equipped with a hydraulic turbine; the column is activated by a stream of cold water, and after this a spark is formed, which turns on the ignition; water heaters of this type are more expensive than other types, therefore this type is less in demand on the Russian market

Varieties of burners

Under the BOSCH brand, units equipped with the following types of burners are presented on the domestic market:

• with power regulator- the required power can be adjusted manually; The peculiarity is that when the water pressure changes, the power remains constant
• with flame modulation unit- the burner power control process is fully automated

Heat exchanger features

When studying the assortment, it is recommended to pay attention to the quality of the material from which the heat exchanger is made - an important element of any water heating equipment. The BOSCH company uses only high-quality steel or copper for production. Copper blocks are considered more reliable and durable. This is explained by this lower susceptibility to temperature changes and the formation of corrosion sites.

If you need help choosing geysers for your home or apartment, you can consult with our specialists at any time.

Geysers become indispensable in the absence of hot water supply. The main task is to choose a high-quality, durable device at an affordable price. Based on the information received from sellers, as well as on the advice of people who have already purchased this product, you can buy a suitable water heater.

Among most companies, Bosch gas water heaters are widely used on the Russian market. The main selection criteria that buyers pay attention to are safety, reliability, durability, affordable price, and ease of use.

Bosch geysers are used to heat running water for industrial and domestic purposes. These devices are divided into three types:

1. With piezo ignition (SO P): the igniter is ignited by a piezoelectric element when the tap is opened. Minimum amount of electronics, mechanical control.
2. Battery operated (CO V): the igniter is ignited by electricity coming from the batteries. Electronic control.
3. With hydroelectric generator (COD H): the igniter is ignited by electricity coming from the hydrogenerator when the tap is opened. Electronic control.

Popular models include the GWH series of geysers (model 10-2 CO B). This type of device has electronic ignition and is designed to operate on liquefied and main gas; savings are achieved by output modulation. The GWH...P series of columns has a copper heat exchanger with a service life of up to 15 years.

Feedback from our readers

“Bosch produces fairly reliable speakers. I personally saw three devices installed 3 – 5 years ago. People still use it without problems.”

Saveliy, Mariupol.

“We purchased a Neckar JSD 26-B 23 (13 l/min). After eight days of use, we can conclude: the water heats up quickly, the water temperature does not drop. Disadvantage: it is noisy, a little louder than a refrigerator.”

Marina Smirnova, Kirov.

“The water heater is quite noisy.”

Julia, Gdansk.

“We have been using the Nescar water heater for about 2 months. Overall it works fine. I don’t like the occasional changes in water temperature during screwing. The price is affordable."

Natalya Vasilievna, Samara.

“I purchased a Bosch WR 10 - 2P. Very reliable, copper heat exchanger, temperature fluctuates within ±5 °C. Non-standard water inlet/outlet - ? inches, you will need an adapter during installation.”

Alexander Master, Moscow.

“Disappointed. I bought the P series with a pilot light. Now I have to constantly clean the igniter from dust, because it is very difficult to start with a dirty igniter. Although there is no better offer on the market.”

Semenovich, Ufa.

“I bought it, installed it, it’s been working for 3 years without any complaints.”

Alexey, Russia.

Repair of geysers

Any device needs proper operation and timely repair. There are several reasons for breakdowns:

• factory defects of the unit or some of its elements;
• defect, breakdown caused by natural wear and tear;
• defect, breakdown caused by incorrect user actions.

The most common malfunctions that may occur are:

• the wick does not light;
• the wick lights up and immediately goes out;
• the water does not heat up, it heats up very weakly;
• the flame does not light up;
• the radiator (heat exchanger), water block is leaking;
• the flame goes out.

Repair of Bosch geysers is carried out by restoring the elements and their performance, replacing faulty parts with new ones. It is recommended to carry out maintenance at least once a year. The frequency of maintenance depends on the operating conditions of the water heater.

Gas water heaters Bosch 10 and 13

It is worth considering the most popular models. The Bosch 10 geyser is an efficient instantaneous water heater. Efficiency - 87%. Power – 17.4 kW. Heats up to 10 l/min. Ignition - piezo. There is a gas flow regulator, a water temperature regulator, and a piezo ignition button. Copper heat exchanger without tin or lead alloys. There is thermoelectric flame control.

The Bosch 13 water heater has a control panel with a gas flow regulator, a water temperature regulator, and a piezo ignition button. Thermal copper heat exchanger, without tin or lead alloys. Power: from 7.0 kW to 22.6 kW. Heats up to 13 l/min. Efficiency – 86.9%. This column provides a constant flow of water at variable water pressure. A special feature is the gas burner, made of stainless steel, which makes it possible to work with liquefied gas. The power is modulated depending on the water flow.

A gas instantaneous water heater (in everyday life it is called a geyser) is a device for heating instantaneous water. In gas water heaters, water is heated using the energy of gas combustion.

The first geyser was designed at the end of the 19th century and since then has become indispensable in houses where there is no centralized supply of hot water.

Bosch is the world's leading manufacturer of gas instantaneous water heaters. With a wide range of products, Bosch gas water heaters can satisfy any requirement for preparing the required volume of hot water.

A instantaneous gas water heater is capable of preparing hot water in a constant mode, that is, the consumer does not have to wait until the required volume of water is heated. In addition, the technical characteristics of almost all models of water heaters of this type allow you to set the desired temperature regime. When the threshold value increases, the heating intensity automatically decreases; when it decreases, for example, due to an increase in pressure in the water pipe, on the contrary, it increases.
The main advantage that is typical for gas flow-through installations is saving money paid for energy resources, as well as operational comfort and compactness.

Below is a table that will help you understand what performance the column needs.

Bosch geysers have established themselves as reliable and modern water heating equipment. They have good build quality and excellent functionality. The Bosch brand is revered in Russia, hundreds of thousands of people trust it. Therefore, there is always a demand for speakers from this manufacturer. What are the advantages of Bosch speakers?

• Durability – speakers from this manufacturer work for many years;
• Excellent functionality that pleases consumers;
• Large model range - both simple and more advanced models are available.

You can view all models on the official Bosch website. And here you can read customer reviews about geysers - they will help you make the right choice when purchasing. Despite the manufacturer’s fame, its equipment is still not without certain drawbacks. And all this leads to the appearance of both positive and negative reviews. But in general they are positive.

In addition to the reviews themselves, we will publish the advantages and disadvantages of Bosch geysers. Thanks to them, our readers will become familiar with the strengths and weaknesses of certain models.

What do buyers think about geysers from such a well-known manufacturer? Our detailed and extensive review of customer reviews will tell you about this.

Geyser Bosch WR 10-2P

I bought this gas water heater two years ago, before that we used a Junkers water heater. And over these two years I have not noted any major malfunctions. The device operates stably and without failures, the heat exchanger does not leak, and the burner does not make noise. It ignites well, there is a piezo ignition, so ignition takes place without strong pops. The performance is enough for two taps, while it consumes noticeably less gas compared to analogues from other manufacturers. The design is quite ordinary, strict, without any pretentiousness. The water temperature is stable, so you don’t have to worry about boiling water pouring out of the tap. Overall, an excellent speaker for little money.

Advantages:

• Economical, consumes a minimum of gas, while similar speakers consume much more;
• No major malfunctions for two years, I hope it will continue to work;
• Almost silent operation, ignites well and works without making noise throughout the entire apartment;
• Maintains temperature, convenient regulator.

Flaws:

• Once the fuse became clogged and did not want to light; this happened in the first year of operation;
• There is no heating temperature indicator, you have to rely on your own feelings;
• The regulator does not work very well, so you have to struggle a little when setting it up. But then it maintains the set temperature well.

Geyser Bosch WR 13-2P

I needed a Bosch gas water heater with piezo ignition and good performance. Before this, I suffered with the Astra speaker. I decided to go with the Bosch WR 13-2P model. It allows you to get up to 13 liters of hot water per minute, saving gas. The controls are quite convenient, with just one knob to adjust the temperature. It maintains the set temperature stably, even if you simultaneously open another tap or turn on the shower. After a year and a half, it began to drip, and I became convinced that over time, the quality of products deteriorates even from leading brands. The heat exchanger and tubes are very flimsy and thin, I have no doubt that new leaks will soon form and we will have to deal with them again. If it weren't for the flimsiness, this would be an ideal speaker.

Advantages:

• Pleasant control without a mountain of knobs, buttons and liquid crystal panels;
• It ignites confidently at low pressure, which helps the whole family in the summer;
• A good model for non-gas-free buildings, for example, for a summer house. For this purpose, it is possible to connect a gas cylinder.

Flaws:

• All metal internals, including the heat exchanger, are made of thin metal. The manufacturer should stop saving, otherwise Bosch will lose satisfied users;
• The ignition gets clogged quickly, it needs to be cleaned periodically - as it turns out, this is a problem with this model, and other people also suffer with cleaning. Also a defect from Bosch;
• A very expensive heat exchanger, I wanted to replace it with a new one so that it wouldn’t drip, but I decided that it would be cheaper to repair.

Geyser Bosch WR 10-2B

Gennady

Advantages:

• Low noise level, does not roar throughout the entire apartment, like old Soviet gas water heaters;
• The heating is quite intense, you don’t have to wait long for it to warm up;
• Convenient to regulate temperature;
• Economical electric ignition, no gas is wasted on the igniter.

Flaws:

• The batteries run out quickly, although I don’t use the speaker often;
• At low pressure it does not want to ignite, although the passport states that it works even at low pressure;
• Sometimes it lights up with a loud bang.

Geyser Bosch WR 15-2P

After renovating the kitchen, we decided to replace our Vector geyser with a new one. And they decided that it would be a BOSCH geyser, since the brand is quite well-known. We bought it, installed it, and after some time we realized that we had made a mistake in our choice. We spent so much on repairs that it would be enough to buy a new speaker. Water is constantly dripping from it, connections and the heat exchanger are leaking, and the gas sensor in the igniter is faulty. When they told us how much the heat exchanger costs, we were ready to freeze in surprise - about the same as the column itself. And why didn’t we read the reviews before? This speaker has one big drawback; we do not recommend buying it under any circumstances.

Advantages:

• Works easily with two taps, heats water quickly;
• Strict white design and convenient operation with a minimum of handles;
• High productivity – up to 15 l/min.

Flaws:

• An extremely expensive heat exchanger, it is unprofitable to change it, it is better to add a little money and buy a new column;
• Constant leaks force us to turn off the tap at night, we are afraid that it will “break through” and flood the neighbors;
• Sometimes the fuse goes out and you have to relight it;
• Requires constant repairs, emptying your wallet;
• A long warranty on a heat exchanger does not indicate its quality.

Geyser Bosch WRD 15-2G

An excellent modern speaker for those who love high-quality equipment. This model works with reduced water pressure, ignites and heats the water, even if it barely flows. Does not require batteries, ignites automatically - there is a small generator inside that powers the column. It holds the set temperature well, and its high performance allows you to open two taps at the same time - I specifically took a model with a capacity of 15 l/min. There is self-diagnosis; errors are displayed on the display, which can then be deciphered. The same display displays the temperature.

Advantages:

• Almost flawless operation, no major malfunctions arose, the build quality feels quite good;
• It is convenient to control the temperature on a small screen;
• There is no need to constantly change batteries, since they are simply not used in this model - power is supplied from the built-in generator;
• Heats water quickly and does not make noise during operation.

Flaws:

• There is no automatic temperature control on board. This means that when the pressure changes, the outlet temperature will change, and it will need to be adjusted or the hot water diluted with cold water;
• In order to prevent failure of the generator and heat exchanger, we had to spend money on an additional filter;
• Sometimes the overheating sensor is triggered and the column turns off.