It is difficult to find a more famous German brand on the household appliances market than Bosch. Under this logo, a successful German corporation distributes consumer electronics and appliances - refrigerators, washing machines and dryers, boilers, etc. Our review will be devoted to the Bosch gas water heater.
The manual is compiled on the basis of instructions (manuals), user reviews, and expert opinions. You will learn about common equipment failures: having purchased Bosch water heating equipment, you will be fully armed.
Bosch geyser: review of models and prices
Thanks to a wide range of functions and high quality, the Bosch geyser is very popular all over the world. Using this unit, you can create an autonomous hot water supply in an apartment, private cottage or country house. There is a large abundance of models of this brand on the market, among which a simple buyer may get confused and buy a Bosch gas water heater that is not suitable for certain conditions. To avoid such a situation, you should study in detail the operating principle of water heaters, characteristics and types.
Typical breakdowns
Most often, Bosch Group owners encounter the following equipment malfunctions:
- The pilot light goes out or the main engine does not turn on on the first attempt to ignite . In this case, you need to clean the ignition burner of the device.
- The wick goes out or the igniter goes out when the user turns the tap on the mixer. Check the gas pressure reducer if the work is carried out on liquefied gas (in cylinders).
- The water does not warm up well enough . The thermostat may be set incorrectly.
- From time to time the pilot light goes out . Most likely, the traction sensor or temperature sensor is triggered. The elimination of these breakdowns should be entrusted to a specialist.
- Insufficient water pressure through the main body . The heat exchanger, water unit, or the mixer itself could be clogged. It is worth identifying the blockage and cleaning it.
- The main battery does not light up . If the battery-powered igniter does not light, replace the batteries.
You will learn how to light the column and the reasons for the failure in a separate article.
Rating of the best models of Bosch geysers
The company's official website provides a wide range of Bosch gas water heaters, so every consumer can choose an option based on cost and technical characteristics. Each classification differs in the type of ignition, power and performance, but they are all made in two main shades:
Modifications are made at the Portuguese plant, but you can purchase Bosch devices in Moscow, St. Petersburg and any other city through official representatives. There is a separate series of geysers, which are assembled in China; in fact, it is the most budget option. Let's take a closer look at which versions of devices are supplied to the domestic market.
Bosch 2000-O THERM
This line is considered the cheapest because it has a relatively low productivity of up to 10 l/min. and involves operation in combination with one water intake point.
Water heaters have a battery-powered ignition system, a tubular-type heat exchanger made of copper material and a steel burner. The units contain a controller for the degree of draft and flame level. The devices were also equipped with a liquid temperature and gas flow sensor. This version includes a Bosch W 10 KB device with compact size parameters and an estimated cost of 8,000 rubles.
Bosch 4 000-O THERM
The most popular series of Bosch geysers, which is available with automatic ignition or piezo ignition. In the first case, water heaters operate on batteries and require regular replacement of the voltage source; the second option requires constant pressing of a key to start operation. There are 3 varieties available on the market, with different power ratings and performance levels - 10-15 l/min.
BOSCH WR 10-2 P23
The units contain a heat exchanger consisting of copper material, due to which the device’s service life is increased to 15 years. In addition to all modifications, they are equipped with smooth modulation of the burner fire, thanks to which the device is able to independently maintain the specified temperature even during pressure surges.
One of the most important advantages is the ability to operate at a water pressure in the plumbing system of 0.1 atm.
This classification includes the following models:
- automatic modifications with the prefix “B” - WR10 2B, 13 2B, 15 2B;
- semi-automatic with the prefix “P”, indicating the presence of piezo ignition - gas water heater Bosch WR 102P, 13 2P, 15 2P.
Each option has an individual column ignition method. In the first case, ignition is carried out without user intervention when opening the water tap; in the second, you need to light the wick in the device by simply pressing the desired key.
Water heaters with piezo ignition are significantly cheaper than devices with electric ignition, but each option has its own disadvantages - the need to replace batteries, the inconvenience of turning on the column at more than an arm's length, etc.
Bosch 4 000-S THERM
The main distinguishing characteristic of devices in this series is the presence in the design of a fan that creates forced draft. The devices can operate without a chimney system, so no special maintenance is required. Such units are especially relevant for apartment owners who do not have the opportunity to install a chimney.
Therm 4000 S WTD 12 AM E23
The combustion products are removed and fresh air supplied through a coaxial chimney. This element must be installed horizontally through the wall directly to the street. It is sold as an additional option and, as a rule, is supplied separately from the gas water heater.
The units also have a digital display for determining error codes, setting the temperature mode and other programs. This device, thanks to the burner fire modulation device, can maintain the specified mode with an error of up to 1°C.
The line includes the following models:
From this it becomes clear that modifications are made in three versions in terms of power and heating intensity of 12-18 l/min. They have a drawback - the devices operate on a 220 V power supply, so the models are considered completely energy-dependent.
VIDEO: Bosch Therm 4000 O geyser (review and setup)
Bosch 6 000-O THERM
The Bosch 10 2G, WRD 13 2G, 15 2G devices are equipped with a hydrogen generator and automatic ignition of the burner, which is produced by a stream of water. When the tap is opened, the liquid circulates into the column, and the Hydro Power system automatically starts the device with a hydrodynamic generator. In this case, no batteries or piezoelectric element are required.
Therm 6000 O WRD 10 2G
As for the heating efficiency, it is 10-15 l/min, depending on the modification. The control panel is equipped with a liquid crystal screen, which displays all information about the operation of the device.
Geyser Bosch 6 000-S, 8 000-S THERM
These series are considered industrial because they are capable of producing 24 and 27 l/min. and work on 4 mixers. Geysers have electric ignition and a liquid crystal screen on the front of the panel.
THERM 8000 S WTD 27 AME
In the first case, the units are equipped with two fans, in the second - with a special condensation device and an electric drive.
Frequent problems
Every consumer should be aware of the problems that he may encounter when using a Bosch geyser. Regardless of which model it is W10 KB or WRD 13 2G, where it was purchased and at what price, the following situations may arise during use:
- The water heater does not light up or the fire goes out a few seconds after starting. The pilot burner needs to be cleaned.
- The wick goes out when water collection begins. You need to check the fuel pressure reducer. This must be done if the device operates on bottled fuel.
- The liquid does not warm up enough or does not change the initial temperature at all. You need to examine whether the temperature regulator, which is located on the front of the control panel, is set correctly.
- The pilot light goes out for no reason. The traction control or water temperature control probably turns on. This will require the intervention of a Bosch geyser repair technician.
- The pressure of water coming out of the column has decreased. The cause of the problem is contamination of the heat exchanger, tap, or water unit. It is necessary to identify the source and clean it.
- A water heater with an automatic system does not start. The batteries may be discharged or damaged; they need to be replaced with new ones.
General description of the model range
The Bosch range of geysers is represented by different water heaters, which differ in types of ignition, performance, and power. They are equipped with safety sensors that ensure comfortable use of the device.
Small-sized products are mounted on the wall. Made from high-quality materials that ensure a long service life of geysers. Depending on the power, they are capable of supplying hot water to more than 2 taps.
To choose a Bosch speaker, it is important to consider:
- volume of heated water per minute;
- power, efficiency;
- dimensions, mounting capabilities;
- number of taps for supplying hot water.
Bosch geysers have high efficiency and good performance. They turn on automatically when the water tap is opened.
Operating instructions for Bosch geysers
2017-03-07 Evgeniy Fomenko
The Bosch wr 10 2p geyser can operate from both natural and liquefied gas, i.e. balloon. Equipped with triple protection: a thermoelement for controlling the ignition flame, controlling the draft of gas combustion products, and a temperature limiter that protects the column from overheating.
The model is also equipped with a reliable flame modulation system. This means that the column automatically adjusts the heating to the required liquid flow. If you are washing dishes in the kitchen, and someone decides to wash in the shower, the water temperature will be the same, both in the kitchen and in the shower. The power of the liquid at the outlet is also automatically adjusted when the water pressure in the water supply system changes.
Before turning it on, according to the operating instructions for the Bosch geyser, you must make sure that there is draft in the chimney. This can be done by holding a lit candle or match to the chimney. If the flame deviates towards the chimney, it means that everything is in order with the draft, and you can turn on the device.
If there is no draft, you should find out the reason and clean the air duct, or seal the seams of the air duct pipes if a loose fit of its parts is detected. When the speaker is operating, make sure that the window or window is slightly open; the door in the room where the speaker is installed should not be tightly closed.
This ensures natural air movement and oxygen flow; the unit burns a large amount of oxygen during operation. Failure to comply with these requirements may result in carbon monoxide poisoning. It should also be remembered that when the column is running, you cannot turn on the fan or air conditioner, this will disrupt the flow of carbon monoxide through the chimney.
On the front panel of the device there is a slider on the left that regulates the power, on the right there is a toggle switch for regulating the liquid volume, and above them there is an observation window. Never get too close to it to avoid getting burned.
Control panel for geyser Bosch WR 13-2 P
If starting up for the first time or after a long period of inactivity, some air may accumulate in the column pipes. To remove it, open and close the hot water tap several times, at intervals of about a minute, until it is completely removed.
When you turn it on for the first time, open the gas and water valves and turn on the hot water tap to make sure that liquid is flowing.
The Bosch speaker has a piezo ignition system, the button of which is located at the bottom left. To turn it on, you need to move the slider from the left extreme position to the ignition position, indicated by an asterisk. Press it down and simultaneously press the piezo ignition button several times until the pilot flame appears.
At the same time, loud clicks are heard, you should not be afraid of them, this is how it should be. If the pilot flame ignites, release the slider button; if ignition does not occur, repeat the entire procedure again. The unit may not start if, after a long period of inactivity or when turned on for the first time, air gets into the gas pipes. To remove it, hold the slider button depressed until all the air is removed.
As soon as the unit is turned on, set the power you need using the same slider. The extreme right position provides maximum power, while gas consumption also increases. Using the round knob, the required fluid flow and temperature are set.
By turning the knob clockwise, you reduce the flow and increase the temperature, turning counterclockwise - on the contrary, the flow increases, the temperature decreases. Setting a high temperature increases gas consumption and scale formation in the heat exchanger.
The pilot flame burns continuously, and the main burner ignites when the hot water tap is opened. The shutdown occurs when you close the hot water tap. To completely turn off the unit, you need to move the power regulator slider to the extreme left position, the pilot flame will go out.
If there is a risk of water freezing in the appliance, for example, in a country house in winter, you should completely drain the water from it. To do this, you need to close the water and gas supply valves and open the taps on the mixer.
Remove the housing casing by unscrewing several bolts to gain access to the water unit. Remove the bracket in the shape of the letter “P” from the filter housing on the water fittings and remove the plug, which is located immediately behind the bracket. Wait a while until the liquid is completely drained.
To extend the service life of the device, it is necessary to carry out regular maintenance, at least once a year. Clean the inside of the column from dust and soot, and descale the heat exchanger. At the same time, you should know that all work on gas equipment should only be carried out by a specialist.
After all work has been carried out to prepare the Bosch Gaz 6000 boiler for launch, after pre-launch preparation, which includes checking the expansion tank, shut-off valves, filters, checking the pressure in the gas line, the tightness of all joints, the boiler is connected to the electrical network.
After powering up the power supply, the “attention” icon appears on the electronic display located on the front panel of the unit. Next, press the power button on the front panel, located near the upper left corner of the electronic display. Above the display there is a magnetic instruction manual that allows you to easily change the unit settings.
When turned on, within two seconds, the boiler electronics conduct self-diagnosis, check all sensors and switch to blocking mode. The display shows the current temperature and status code. Next, it is necessary to adapt the fan speed to the length of the chimney to which the unit is connected.
This operation is performed by simultaneously pressing and holding three buttons - “+”, “-” and “back”. The mode is set in accordance with the parameter specified in the instructions for the device - set the second service level, confirm the action with the “ok” button, holding it down until square brackets appear on the display.
Burner
Bosch branded burners are made of stainless steel. Thanks to high-quality materials, they have a long service life. Bosch geysers are equipped with draft sensors. If the draft is poor, the burner goes out. This feature ensures safe use of the equipment.
Built-in automatic ignition lights the burner when the water tap is opened. The flame modulation function allows you to adjust the power and strength of combustion. After turning off the tap, the burner goes out. Ignition works automatically using batteries.
From production, Bosch equipment is configured to work with natural gas, but it can be reconfigured for liquefied fuel. Some models have semi-automatic piezo ignition. In this case, the pilot light burns constantly and steadily.
The flame should be blue. If yellow flowers or smoking occurs, the burner must be cleaned.
If Bosch equipment turns off during operation, then it is necessary to check the draft, gas supply and replace the batteries in the ignition. After these steps, restart the system after 10 minutes.
Bosch geysers: features of models, instructions
In the household appliances market, it is probably difficult to imagine a more famous brand than Bosch. The company quite successfully supplies products under its brand all over the world, ranging from irons, refrigerators and ending with power tools. A separate division is the production of heating equipment by the German concern: boilers and water heaters from Bosch-Thermotechnics.
Bosch solid fuel and gas boilers have been heating homes for many years, both in Russia and abroad. Bosch gas water heaters are especially popular among Russian consumers , reviews of which can often be seen on specialized websites. Buyers are attracted by the quality and reliability at an affordable price for instantaneous water heaters from a German manufacturer.
Let's figure out together whether a Bosch geyser is worth buying today, given such a wide choice of manufacturers in our time. To do this, it is necessary to consider the model range, prices and technical characteristics of the device from the German concern, disadvantages and advantages in comparison with its direct competitors on the market.
Let's make a short review of Bosch geysers based on the operating instructions, as well as reviews from specialists and customers. Let's analyze the main malfunctions of the Bosch column: why the pilot light does not light up or the wick goes out, etc.
Model range and features of Bosch geysers
Bosch geysers, unlike their direct competitor - Electrolux water heaters, have a very wide range of models. Many modifications with different types of ignition and performance, design and size. Water heaters are available in two colors: white and gray.
Bosch geysers: model range
1. Therm 2000 O
This is a budget geyser with a small hot water output of 10 l/min. This device is equipped with automatic ignition from batteries, a tubular copper heat exchanger and a stainless steel gas burner.
As in Ariston columns, it contains an emergency draft and flame control sensor, as well as a water temperature sensor and a gas control system. The Bosch W10 KB speaker is compact in size and can be purchased inexpensively, starting from 8,000 rubles.
2. Therm 4000 O
The most popular models are available with both automatic ignition from batteries and piezo ignition by pressing a special button. Three types of different power and productivity from 10 to 15 l/min are available. Bosch geysers in this series have a high-quality copper heat exchanger for heating running water with an increased service life of up to 15 years.
Also, these models are equipped with smooth modulation of the burner flame, with the help of which the device itself maintains the set outlet water temperature. An important advantage of this model is that this column turns on at a water pressure of only 0.1 atmosphere.
Instantaneous gas water heaters of this series have the following designation:
— Bosch column with automatic ignition (article “B” is present): WR 10-2B, WR 13-2B and WR 15-2B;
— Bosch semi-automatic column with piezo ignition (marked with the symbol “P”): WR 10-2P, WR 13-2P, WR 15-2P.
Bosch column with piezo ignition
The main feature of this model is the presence of a fan for forced draft. These speakers can operate without a chimney, i.e. no special construction is required. This feature is very convenient when it is not possible to install a chimney in an apartment or house.
The release of combustion products and the flow of air into the gas water heater is carried out thanks to a special coaxial chimney, which is installed horizontally through the wall to the street. This kit is an option and is supplied separately from the device itself.
Another important feature of Bosch geysers of the AM1E series is the presence of a digital control panel, which displays possible errors if the device malfunctions. You can also set the water temperature and, thanks to even smoother and more precise modulation of the burner flame than the previous model, this water heater will maintain the temperature with an error of only 1 °C.
The model is available with three types of power, with a capacity of 12 to 18 l/min. Unlike other models, this series of devices is energy-dependent due to the built-in fan, powered by a 220 V network. They are labeled as WTD 12 AM E23, WTD 15 AM E23 and WTD 18 AM E23, depending on their rated power.
Reviews
Bosch Therm 4000 O WR 10–2PAdvantages: easy to disassemble and assemble, unlike the same ARistons Disadvantages: high prices for spare parts, low reliability of the burner and igniter (ill-conceived design).
sviyag
https://otzovik.com/review_1713020.html
I consider my choice of the Bosch W 10KB model to be quite reasonable, since such a speaker meets all modern requirements.
I can list its main advantages, these include: 1 high-quality assembly (Portugal) 2 simple intuitive control 3 ergonomic design 4 compact dimensions (looks harmonious in our small Khrushchev kitchen) 5 silent operation (in standby mode there is complete silence, and during operation you can hear the ignition turning on) GOLUBENOK
https://otzovik.com/review_6049064.html
Not worth the money).
I worked for 4 and a half years, which is not enough for Bosch. There are no spare parts for free sale. Expensive service. I do not recommend buying a Bosch WR 13–2P (GWH 13–2CO P) water heater! IraMax
https://otzovik.com/review_1751660.html
A high-quality gas instantaneous water heater - BOSCH wr 10-2p, I have been using it for 5 years, there have not been a single breakdown during the entire period of operation.
The only thing I had to do was clean the igniter tube from accumulated dust, because... The igniter did not turn on. But this is all easy to do at home. Vlad i mir
https://irecommend.ru/content/goryachaya-voda-v-lyuboe-vremya-goda
We changed the column about 3 years ago, took a long time to choose and came to the conclusion that we should buy it in specialized offices, and not in stores with household appliances.
We bought a “Gas water heater BOSCH WR 13G”, manufactured by JUNKERS Bosch Gruppe Germany. It cost 10,200 rubles then, but there were cheaper ones depending on the functions. This one ignites under the pressure of water, but there are those with a wick that burns all the time, like on our old speakers. The technician who installed it said that it was the best choice among household ones :) Maybe, of course, he tells everyone that, but we are happy so far. Lirin
https://fshops.otzyv.ru/read.php?id=190
Gas instantaneous water heaters:
Ariston (Ariston)
- Geyser
(
Ariston) Fast evo C. – Instructions Download PDF
Gas
water heater Ariston Fast evo B. – Instructions Download PDF- Geyser Ariston MARCO POLO M2
.
– Instructions Download PDF
Bosch (Bosch)
- Geyser Bosch Therm 4000 S – Instructions Download PDF
- Geyser Bosch Therm 4000 O – Instructions Download PDF
- Geyser Bosch Therm 6000 S – Instructions Download PDF
- Electric water heater Tronic 6000 T – Instructions Download PDF
- Indirect heating boiler W 120-5 P, W 160-5 P, W 200-5 P, W 200-5 EP Download PDF
Others
- Electrolux GWH 265 ERN NanoPlus
– Instructions
Download PDF - NEVA LUX 5514 – Instructions Download PDF
- Vega 10 E MORA-TOP – Instructions Download PDF
- Zanussi GWH 10 Fonte Manual Download PDF
- Röda TURBO – JSD20-T Instructions Download PDF
Principle of operation
In atmospheric water heaters, you first need to light the pilot light directed towards the burner. Then the hot water tap opens, which increases the pressure inside the system. The design of the water unit of the gas column (or “frog”) is such that the flow passing through it affects the internal membrane, which moves the rod directly connected to the gas valve. The valve moves back, thus opening the supply of gas-air mixture to the burner. When interacting with the pilot flame, the mixture ignites and the water begins to warm up inside the coil.
The water warms up all the time the liquid supply tap to the point of consumption is open. The flame strength is adjusted manually. After closing the mixer, the pressure inside the system drops, the membrane returns to its previous position and the fuel supply valve closes.
This is how the operating principle of the old gas water heating system looks like. Newer models, unlike the old gas model, are ignited by an electric spark produced by batteries, a hydrogenerator, and the electrical network. The required temperature (and therefore the flame strength) is set on the display of the control unit and the water heater automatically maintains it.
Let us briefly look at the design features of water heaters from the most common manufacturers.
Boilers:
Bosch Operating Instructions
- Gas boiler Bosch GAZ 6000 W Instructions Download PDF
- Condensing boiler Bosch Condens 3000 W Download PDF
- Condensing boiler Bosch Condens 5000 W ZBR 65-2 | ZBR 98-2 Download PDF
- Convection boiler Bosch Gaz 2000 W WBN2000-12/18 CR N | WBN2000-24 CR N Download PDF
- Convection boiler Bosch Gaz 4000 W ZWA 24-2 K and ZSA 24-2 K Download PDF
- Convection boiler Bosch Gaz 6000 W WBN 6000-12/18/24 CR/HR N/L Download PDF
- Convection boiler Bosch Gaz 7000 W Gaz 7000 W ZWC 28-1 MFK / MFA Download PDF
- Electric boiler Bosch Tronic Heat 3000-3500 Download PDF
- Gas boiler Baxi ECO Four 24 F Download PDF
Protherm
- Electric boiler Protherm Skat Download PDF
- Gas boiler Protherm Cheetah Download PDF
Lemax
- Steel gas boilers "Lemax" Premium series 70 -100 Download PDF
Operating principle
The operation of gas equipment is carried out according to the following algorithm:
- after opening the tap, the required coolant enters the heat exchanger, the heating burner is ignited by the igniter;
- water passes through the coil and is heated with the help of heat, which is released in large volumes during fuel combustion (rapid heating occurs due to heat transfer at high speed, which is associated with the high thermal conductivity of materials);
- exhaust gases exit under the influence of natural draft in the chimney or forced exhaust.
