Junkers Geysers Reviews

Operating rules

It should be remembered that some actions can lead to breakage of the geyser. Junkers work will be disrupted if fresh air is not provided. In addition, breakdowns will occur when using too long hoses, leading to a decrease in pressure, while simultaneously opening hot and cold taps. Naturally, the lack of periodic prevention will also lead to negative consequences.

It has already been indicated above how you can turn on the Junkers column - this is done using a valve and a piezoelectric element that can light the wick. It is necessary to light the burner, and it will work throughout the day. Moreover, as soon as the hot water tap opens, the boiler will automatically connect.You can change the gas pressure and water pressure by switching the two control knobs.

If it is decided to clean the gas equipment, this is done according to a certain algorithm.

• First, gas and water are turned off, then the casing is removed.
• At the next stage, the water unit and smoke inlet are dismantled.
• Finally, the heat exchanger is removed at the end. The radiator can be washed in warm water with a non-abrasive cleaning solution. The brush should be long-haired and fairly stiff.
• The wick and the main burner are well cleaned with a special awl. In addition, you will have to remove carbon deposits from each nozzle. However, doing it yourself is not recommended. It is better to invite a specialist once a year who will combine the check with descaling. The professional will also remove deposits, check the fittings for tightness and clean the plates on the flue gas side.

If there is a smell of gas, then it is forbidden to use electrical switches and telephones in the area where the gas burner is located.

It is important to immediately turn off the gas valve, open the windows, ventilate the room and call the specialists who installed the equipment. To prevent dangerous situations, liquids and objects prone to ignition should not be stored near Junkers. When the room temperature drops below zero degrees, the burner turns off and empties. If this procedure was not carried out before the winter months, then when connecting the device in the next season, you need to check if the water is heated

When the room temperature falls below zero degrees, the burner turns off and is emptied.If such a procedure was not carried out before the winter months, then when connecting the device in the next season, you need to check whether the water is heated.

Geyser Junkers Jetatherm WR 275-1KDP

Bought this speaker a long time ago. Reading reviews of modern speakers, you are involuntarily amazed at how messed up the quality is. But our column has been serving for 7 or 8 years already. During this time, practically nothing broke in it, only changed the current gaskets a couple of times. But otherwise, the model deserves a positive review - it is reliable, works well in conditions of reduced pressure. Calmly heats water up to 55-60 degrees, this is more than enough for the house. True, I would gladly supplement it with battery-powered ignition - and then there would be no price for it.

Geysers are designed for heating water in apartments and houses that do not have a central hot water supply. The devices are easy to use, safe, allow you to adjust the degree of heating.

All Junkers water heaters are adapted for operation in Russia and have a number of advantages:

• adaptation to pressure in Russian gas pipelines 13 mbar. In Europe, this figure is 20 mbar. Unadapted devices in such conditions will be less productive;
• adaptation to the pressure in the water supply. Russia is characterized by low water pressure, especially in multi-storey buildings. The Junkers geyser works stably at a pressure of 0.1 atm.;
• high performance. The devices heat 11-16 liters of water per minute;
• cold water is mixed in the mixer;
• flame modulation - automatic power change depending on the volume of water flow;
• safety;
• German assembly quality;
• two years warranty;
• long service life.

Possible malfunctions

Of course, the operation of any equipment does not always go smoothly, you should be prepared for anything.Fortunately, a significant part of the possible malfunctions that occur at the Junkers geyser are easy to solve on your own.

There are actually many reasons why the burner does not light up.

• It may turn out that both the inlet and outlet pipes were initially installed incorrectly. In addition, the water supply may be interrupted.
• Traction problems are possible. When the chimney is dirty, the products of combustion do not go away, but accumulate inside, which slows down the operation of the equipment. The draft also suffers due to the lack of fresh air, for example, when the window is closed.
• It happens that the chimney is blocked, and this creates a potentially dangerous situation. We urgently need to turn off Junkers and call specialists.
• If the pilot flame goes out, this indicates that the protective relay needs to be replaced.
• It may be trite that the burner does not burn, because the battery is discharged, and therefore the automatic ignition system does not function. You will have to disassemble the front panel and charge it yourself or replace the battery.
• Weak pressure in the line leads to a weak water supply, which again leads to problems in operation.
• The wick goes out when the flame is uneven. As a result, the main burner is turned off. To solve this problem, simply clean the device.

Sometimes the Junkers column does not light up, and sometimes the device turns itself off.

• The first reason is that the batteries have already become unusable.
• The second reason is that it is necessary to change the membrane, which is deformed or torn. It's good when the repair kit contains a replacement.
• The next possible option is that one of the control sensors does not work or the microswitch is worn out, this can be determined by the absence of a characteristic click.

In addition, the igniter can become clogged from the inside, which can be easily fixed by cleaning. The abundance of rust, dirt in the filters due to poor quality water and electrodes leads to similar consequences. Finally, faulty installation, a closed gas pipe valve, and wiring problems are also common causes of service interruptions.

There are a few more common cases. If there is no spark from a device with auto start, then there may be no ionization current, which means that water does not flow. The spark goes out when the flame controller is broken. If the column does not heat water, then the reason may be a perforation of the water block membrane, contamination of the pipes or improper assembly, but most often a breakdown of the heat exchanger.

When the water heater makes too loud noises and heats up, this indicates that the radiator is broken or clogged with scale.

How light up the gas stove Junkers, you can find out from the video below.

Device cost

Each device is completed with a detailed instruction, which describes the technical component of the device, instructions for installing, configuring and caring for it. The manufacturer recommends that you do not install the device yourself, but trust the specialists from the gas service. After all, improper installation can not only break the device, but also cause significant harm to an inept installer.

Review: Good store, lowest prices, polite staff!

07.09.2018 07:43

Review: 06/19/2018 I chose the Gefest 6300-03 0046 gas stove on the website, but I wanted to see it "live", I called and the manager Andrey told me the addresses of the stores where you can see the order. Then he very thoroughly and kindly answered all my questions, advised on the issue of delivery, i.e. as if accompanied the entire period until the purchase of the stove.On 06/22/2018, the stove was delivered, and exactly within 1.5 hours after the call, as promised! Thanks to this clarity in organization, I managed to call the gasman, and the stove is already working! Thanks to all those responsible for working with clients, it is felt that we are really welcome, and not an automatic phrase on duty. By the way, the phone, despite the fact that it is for the entire "Soviet Union", works quickly, and live people immediately answer, this is also a plus. Thanks!

22.06.2018 17:39

Review: I thank the manager Fedor for his help in purchasing a gas meter, advice and prompt delivery. Manager Andrey — thanks for the reservation at the pickup point. Good luck and prosperity!

22.03.2018 12:02

Review: Bought a column. Didn't know anything about them. Everything was explained in simple language. After that, it was not difficult to make a choice. Thank you for the column and recommendations for choosing.

14.02.2018 18:17

Review: I made a purchase through the site, in a store at Novo-Vokzalnaya 4, ran into rudeness from the seller, who simply refused to advise, referring that I had to study everything myself on the Internet, I was left with an extremely unpleasant impression.

Response to the review from the Boiler & Column website:
Hello dear Anton!
We will definitely resolve this issue. At present, the information has been brought to the attention of the management that the manager at Novo-Vokzalnaya, 4 violated the regulations, and measures will be taken. Please accept our apologies. Thanks for the feedback!

Warehouse and pickup hours:
Mon-Fri: from 9-00 to 18-00
Sat-Sun: day off

An easy-to-use German-made Junkers geyser is designed for use in apartments or private houses where there is no hot centralized water supply.The units are divided into several classes according to the type of ignition and power. All of them are adapted to work in Russian conditions, capable of operating at critically low pressure in the system (up to 0.1 atm), which is especially important for multi-storey buildings.

Before choosing a device, you should study in detail all the characteristics, otherwise you can make a mistake and purchase an unsuitable option.

Varieties

In general, all Junkers columns can be divided into three groups, depending on the ignition method.

• Those in the B series do not have an igniter that can burn constantly. Two batteries are responsible for ignition, and the column itself turns on automatically. Safety systems control draft and flame, there is a fuse. The pressure of water in the plumbing affects the temperature.
• The P series works on the basis of piezo ignition. This means that the igniter does not stop working. Water and power have to be regulated separately.
• Finally, the G-series models work thanks to HydroPower technology. There is no igniter at all, and a hydrodynamic generator is responsible for ignition.

Available models are standard and mini. The difference between them is only in size. Junkers branded products are priced based on dimensions and additional services such as delivery and installation. Reviews are mostly positive. Users only mention the need for timely cleaning of equipment and elimination of blockages.

Preference is most often given to models of the Junkers brand with piezo ignition.When the hot water tap is opened, gas will be supplied to the main burner. As a result, it will ignite from the igniter and heat the water.

Device and principle of operation

A typical column consists of a casing that is connected to the chimney through a pipe, a heat exchanger (the best is copper), a gas burner, an ignition system, sensors and a mechanism responsible for supplying gas. The geyser is connected quite simply.

Its principle of operation can be considered on a model that has a piezo ignition.

• The slider is set to the middle position, after which you need to click on it. At this moment, the valve opens, and the gas enters the wick, which is also the igniter.
• The piezoelectric element, located at the bottom left of the gas column, supplies a spark that ignites the gas. In this case, the slider button is kept pressed for up to 40 seconds. When it is released, the wick still continues to burn.
• At this time, the column thermocouple is heated, which will then keep the electromagnetic gas valve open.

Now about the malfunctions of the columns Junkers (Junkers), Bosch (Bosh)

1. As I wrote above, the column is assembled on rubber o-rings. In old columns, they become stiff, and the seals begin to leak. Well, if the master has them. Often you meet with different collective farm options from windings to sealants.
2. The membrane of the water block, unlike the membranes of Chinese columns, works for a very long time. I met a torn membrane once. The price of the original membrane is about 1800 rubles, the Chinese analogue costs around 400 rubles. Who will find it. There is no sense in the original, because the prices are cosmic.
3. The water block of the geyser assembly costs around 4500-5000 rubles. The price is high. Seal repair kits for sale. You can sort out the water block yourself. Often a flow regulator flows at the block. It is treated by replacing the sealing ring.
4. Rarely, but there is a leak in the stem seal of the water block. Alas, the seal cannot be replaced separately. Changes with the water block cover. The price of a cover with a stem is 2700 rubles. Very expensive!
5. On Junkers (Junkers), the thrust sensor and the overheat sensor are often tormented. Sometimes they are so tormented that I change the entire set of thermocouples and sensors. If it was not part of the plans to change the automation, then the temperature sensor can be painlessly short-circuited (it is not available at all on many imported gas water heaters). I do not advise shorting the thrust sensor, a thing that is clearly necessary and has saved more than one life. It stops the gas supply to the column if the draft is lost in the chimney. It can be shorted out for a while so as not to sit without hot water, and only in order to quickly find a replacement for it.

If you decide to buy such a column, then read the reviews on the useful Otzovik website. There, each described his column and put marks. My review is old enough.

Now I would give a solid four to this column. I recommend buying. Usually everything is treated without spare parts. Of the "minuses" of the column, I note the high price of spare parts. Thankfully they don't break often.

If anyone is interested, I post the instructions here on bosch geysers and Junkers

Bosch gas water heater manual /upload/file/quickdir/201104111631310.therm 4000 o type p.pdf

Instructions for the Junkers gas column /upload/file/quickdir/gazovaya_kolonka_bosch_junkers_wr10_13_15p_1.pdf

In short, I have everything. Climb into the column yourself, or call me, it's up to you.

I hope the article was of some use to you.

The Junkers company existed until 1932.From that moment on, the company was bought out by Bosch Gruppe, which, however, did not affect the name of the water heaters produced by the division of the main office.

Flow-through geysers Junkers (Junkers) are available in several modifications that differ in the principle of ignition, as well as the type of combustion chamber. Flow-through boilers operating using an ignition burner are popular among domestic consumers. The average service life of the Junkers column exceeds 15 years.

Peculiarities

The characteristics of Junkers indicate that the device is ideally suited to Russian conditions. It is adapted to the pressure maintained in Russian gas pipelines and is equal to 13 millibars. In addition, the system is able to work with low water pressure, inherent in Russian water supply systems. Junkers is enough 0.1 atmospheres to perform the intended functions.

Such a gas burner is capable of heating from 11 to 16 liters of water per minute, which is considered a very high indicator. In addition, the power of the flame automatically changes, depending on the strength and size of the water flow. Designs are safe and able to serve for a decent time. The devices are able to provide fast water heating and look great, which explains their popularity around the world.

Gas burner Junkers miniMAXX WR 13G

In general, a good column, it served me for three years, after which the heat exchanger began to leak. Disassembly showed that a crack had formed in it. This was the most serious malfunction, and for three it served properly. As it turned out, a flimsy heat exchanger is a disease of all gas water heaters from this manufacturer. The fact is rather strange, considering that the trademark belongs to such a well-known company as Bosch.The verdict is this - if you are lucky with the heat exchanger, then the geyser will last a long time. If you are not lucky, you will have to constantly solder the heat exchanger.

Advantages:

• The absence of batteries allows you to get rid of unnecessary expenses, since ignition is carried out from a miniature generator rotating under the pressure of water;
• Solid appearance, no frills;
• Productivity up to 13 l / min, this is enough for a washstand and a shower cabin.

Flaws:

• Flimsy heat exchanger, leaks regularly and requires soldering. Moreover, soldering helps for a short time;
• Sometimes it goes out for no apparent reason, which I could not find.

Brief instruction manual

Column operation

The main thing that the buyer needs to do after the gas water heater has been installed, whether it is a Junkers or Ariston product, is to carefully read the operating instructions from the manufacturer.

The life expectancy of the unit largely depends on its proper use. That's why:

• Installation, as well as subsequent maintenance of the device, should be entrusted only to professionals.
• It is necessary to systematically clean the igniter and the heat exchanger.
• The water temperature must not be set too high, as this can lead to the rapid formation of scale on the walls of the heat exchanger.
• If the water hardness is too high, it is necessary to equip the column with a special device that prevents the formation of scale.

How to light a Junkers gas flow column

The overwhelming majority of Junkers water heaters offered to domestic customers operate in semi-automatic mode.Ignition of a semi-automatic gas boiler is carried out as follows:

• on the front panel of the water heater there is a valve that opens the gas supply;

the button is clamped and the wick is set on fire with the help of a piezoelectric element;

the gas valve is left clamped for another 20-30 seconds;

now the button is released, the flame on the burner should continue to burn.

The pilot burner stays on throughout the day. When the hot water tap is opened, the boiler will turn on automatically. The gas column is adjusted on its own, with the help of two regulators-knobs: changing the pressure of gas and water.

Advantages and disadvantages

The device has both advantages and disadvantages. The advantages include the following characteristics:

• equipped with flame modulation;
• increased security;
• adaptability for use in Russia;
• beautiful appearance.

Thanks to its design, Junkers will fit perfectly into any interior. The device operates at a gas pressure of 13 Mbar. Such pressure is present in all gas pipelines in Russian homes. If we compare it with the European pressure (20 Mbar), then it is much lower, which creates problems when buying other gas water heaters. The device functions effectively in a multi-storey building, where the pressure in the plumbing system is very low (it works from 0.1 ATM.)

Junkers has increased safety and low cost in comparison with its counterparts. When the water pressure changes, the device will automatically select the power at which the water heating will be optimal. The device is assembled by German designers and has a 2-year warranty. With proper installation and operation, the device can last more than 13 years.

Among the shortcomings, there is an increased noise level in most modifications of Junkers geysers. During the operation of the device, problems with the heat exchanger and leaks in the seals appear, which creates a risk of spoiling the flooring under the gas water heater or completely flooding the neighbors.

Types and prices

Columns according to the ignition method are divided into three types:

Series B - no permanently burning igniter. Ignition comes from two batteries. The inclusion of the column is automatic, there are several security systems: traction control, fuse, ionization flame adjustment. The flow of water and temperature are regulated depending on the pressure of water in the water supply. There is a fault indicator. Junkers Series B is made of high quality copper and will last at least 15 years. Models: WR 13 B, WR 15 B, WR 10 B (minMAXX).

Series P - piezo ignition. The igniter burns constantly. Power and water flow are regulated separately. Thermoelectric flame control. Models: WR 13 P, WR 15 P, WR 10 P (miniMAXX)

G series - HydroPower ignition technology. The minimum water pressure is 0.35 atm. There is no burning igniter, ignition is carried out from a hydrodynamic generator. The gas water heater of the G series provides hot water at the same time 1-3 water points. Models: WR 13 G, WR 15 G, WR 10 G (miniMAXX).

All models are available in two sizes: standard and mini. The equipment of both versions is the same, the difference is only in dimensions. The price depends on the size of the device and the need for delivery and installation. The average cost in Moscow is shown in the table.

The lineup		Price, rubles
standard		Height, mm	Width, mm	Depth, mm
WR 350-3 KDP	WR 13P				8 200
WR 350-3 KDB	WR-13B	10 700
WR 350-3 KDG	WR 13G	11 400
WR 400-7 KDP	WR 15P				9 600
WR 400-7 KDB	WR-15B	12 000
WR 275-1 KDP	WR 10P				6 700
WR 275-1 KDB	WR-10B	10 100
WR 275-1 KDG	WR 10G	10 600

If buying a new model is not affordable, you can find a good used device. It costs an order of magnitude cheaper.

Possible breakdowns

The design of Junkers instruments is one of the most advanced to date. But breakdowns still occur due to improper operation, voltage drops, scale formation, corrosion of the case. Factory defects in all service centers are eliminated free of charge. On average in Moscow, the cost of repairing a Junkers geyser is 2,000 rubles. If you call the master at home, it will be more expensive, if you take the equipment to the service yourself, it will be cheaper.

Typical faults:

1. The ignition wick goes out. The cause may be a breakdown of the thermocouple, valve or flue gas sensor;

2. There is no water heating. The reason is the breakdown of the heat exchanger;

3. The water heater is noisy and overheating. The reason is a breakdown of the radiator or blockage with scale;

4. The body is leaking. Problems with the gland or heat exchanger;

5. The ignition spark goes out. The reason is the flame controller is broken;

6. Spontaneous shutdown.

Can I do the repair myself? Of course! For this you need:

• establish the cause of the malfunction;
• have original spare parts;
• have special equipment for diagnostics and repair;
• be instructed in working with gas equipment;
• a lot of time;
• funds for a new device in case of force majeure.

Therefore, the elimination of any malfunctions of the geyser should be carried out by a specialist with special skills and knowledge in this area.Repair must comply with GOSTs and standards for this type of work. Only in this case can you count on long-term and reliable operation, eliminating the risk of explosion and gas leakage. Original spare parts can be purchased at Bosch dealerships. So, a new hydraulic valve will cost about 7,000 rubles, an igniter - 500 rubles, and an electronic ignition unit - 5,000 rubles.

The Junkers geyser is a product of the German concern Bosch. Like all German technology, these devices are easy to use, reliable, durable and use natural gas economically.

Installation and connection

It is better to entrust installation and connection to a specialist who has passed job briefing with this kind of equipment. In addition, he will be able to suggest which original spare parts should be purchased, diagnose the equipment and prevent any malfunctions. However, even a professional should follow the instructions that come with the product itself.

• The column is usually mounted in a warm room near the chimney so that the intake of combustion air is not hindered. There is no need for additional protection of combustible surfaces. The device is installed in compliance with the required gaps, separating it from the wall and furniture. The temperature in the room should be positive.
• First of all, the casing is removed, then it leans on itself and rises up. After connecting the Junkers to the gas network, shut-off valves should be installed as close as possible to the installation. Before connecting to the water pipes, they will need to be thoroughly rinsed, otherwise sand, lime and other contaminants will lead to a delay in the water supply. Both pipelines (gas and water) must be ideally matched to the parameters of the dispenser.
• To avoid blockages, it is necessary to install protective filters.
• The column is attached to the wall with brackets. It must not rest on water or gas pipes. If the column has an electric ignition, then you will need to insert two batteries, the power of which is 1.5 Volts.
• At the end of the work, the stopcock and water valves are closed, and the operation of the draft sensor is checked. The launch occurs according to the instructions.

Installation of a Junkers flow boiler

The operating instructions provide a detailed plan for connecting the water heater. In particular, the following is stipulated:

• installation is carried out exclusively by a qualified master who has the appropriate work permit;

the case is installed strictly on a vertical and horizontal level;

the distance between the wall and the back of the case is 5 cm;

the minimum distance to the bottom of the column from the floor is at least 80 cm;

installation is carried out in accordance with the current SNiP and SP, in premises that meet the requirements for the placement of gas-consuming equipment;

the first start-up of a flowing gas water heater Junkers carries out in the presence of a gas service inspector and the company providing the connection.

Gas pressure adjustment table
		Model	Natural gas H	Butane / Propane
Injector identification number	WR10	8 719 002 033 for resetting to 20 mbar	8 719 002 032
WR13	8 719 002 362 for resetting to 20 mbar	7 702 409 071
WR15	8 719 002 363 for resetting to 20 mbar	8 719 002 182
Connection pressure (mbar)	WR10 WR13 WR15	13	30
Max. nozzle pressure (mbar)	WR10	12,7	28
WR13	12
WR15	10,3	25,5
Min. nozzle pressure (mbar)	WR10	3.2	10
WR13	4,0
WR15

After connecting the instantaneous water heater, a mark on commissioning is put in the passport. From this moment on, the Junkers column is put on warranty service.

Junkers columns - malfunctions and methods for their elimination

A description of breakdowns and troubleshooting methods for Junkers geysers is given in the table:

Malfunction		elimination
1) The pilot flame went out again. 2) Pilot flame ignites only after several attempts. 3) Pilot flame yellow.	Pilot burner blocked.	Clear. *
1) The pilot flame goes out when the hot water tap is opened. 2) The hot water temperature is insufficient, the flame is weak.	The gas supply is insufficient.	1) Check the pressure reducer and replace it if it does not fit or is damaged. 2) Check if gas cylinders (butane) freeze during operation of the device. If the cylinders freeze, put them in a less cold place.
The water temperature is too low.		Check the position of the power regulator and set to a higher power.
The burner switches off while the appliance is in operation.	1) The temperature limiter has tripped 2) Traction control device activated	1) Switch on the device again after 10 minutes. If the problem recurs, call a specialist. 2) Ventilate the room. Switch on the device again after 10 minutes. If the problem recurs, call a specialist.
Reduced water flow.	1) Insufficient water pressure. 2) Water taps or faucets are dirty. 3) The water valve is clogged. 4) The heat exchanger is clogged (covered with limescale).	1) Check and fix. * Check and clean. 2) Clean the filter. * 3) Clean and, if necessary, remove limescale. *
* can only be done by a service and repair technician

So it's time to write an article not about computers and 1Ski, but about repairing a Bosch / Junkers WR13 gas column. Who would have thought that an IT specialist would get there. As it is customary, it is better not to disassemble such things in the department of gas companies and without special knowledge. In fact, there is nothing wrong with it, and with more or less straight hands, it is possible to do it yourself. Moreover, there is a crisis in the country and I want to save money. It all started with the fact that the column stopped going out when the hot water was turned off, I had to run and turn off the gas manually. Google suggested that two main blocks are responsible for this: hydraulic fittings (water unit) and gas fittings. They are connected together in such a way that when water is supplied, the water unit, using a membrane pressing on the pin, presses the gas valve, thereby opening the gas supply. When the water is turned off, the gas valve closes. In general, the problem is somewhere here! (number 14 in the picture)

So, let's get started ... Here he is our patient:

Junkers speaker device

The Junkers brand is synonymous with quality and reliability throughout the world. Speakers are distinguished by a well-thought-out internal arrangement and design. Domestic consumers are offered water heaters of the following type:

• Semi-automatic - the company began to produce speakers back in 1968. During operation, an ignition burner is used. Ignition is carried out using a piezoelectric element. The main burner is switched on when the DHW tap is opened.

Automatic - run on batteries or a hydrogenerator.The series includes simple Junkers geysers with an open combustion chamber, as well as multifunctional models with modulated power. The performance of the burner device varies depending on the water pressure.

In the internal structure of Junkers gas flow columns, only high-quality materials are used. All water heaters undergo mandatory testing and are subject to certification.

More information about the technical characteristics of Junkers columns can be found in the following table:

Specifications	Junkers column model
WR10	WR13	WR15	WR275	WR350	WR400
Power and water flow
Max. rated heat output Pn (kW)	17,4	22,6	26,2	21,8	27,9	32,1
Min. rated heat output Pmin (kW)	7
Thermal power (adjustment range) (kW)	7 – 17,4	7 – 22,6	7 – 26,2	7 – 21,8	7 – 27,9	7 – 32,1
Max. rated heat load Qn (kW)	20,0	26,0	29,6	—
Min. rated heat load Qmin (kW)	8,1	8,1	8,1	—
Permissible gas supply pressure
Natural gas H G20 (mbar)	13
LPG (butane/propane) G30/G31 (mbar)	30	50
Gas consumption
Natural gas H G20 (m³/h)	2,1	2,8	3,2	2,1	2,8	3,4
LPG (butane/propane) G30/G31 (kg/h)	1,5	2,1	2,4	1,6	2,1	2,5
Number of nozzles	12	14	18	—
Hot water
Max. admissible pressure pw (bar)	12
Water volume switch in extreme right position
Temperature rise (°C)	50
Flow range (l/min)	2 – 5,0	2 – 6,5	2 – 7,5	2 – 5,5	2 – 7	2 – 8
Min. working pressure pwmin (bar)	0,1	0,2	0,1
Water volume switch in extreme left position
Temperature rise (°C)	25
Flow range (l/min)	4 – 10	4 – 13	4 – 15	4 – 11	4 – 14	4 – 16
Flue gas characteristics
Required thrust (mbar)	0,015	0,015	0,015	—
Flue gas mass flow (g/s)	13	17	22	—
Temperature (°C)	160	170	180	—

The marking of the water heater contains detailed information regarding the principle of operation and the internal structure. To understand the abbreviations will help the table with the decoding of the symbols:

W	R	10	–2	P	B	G	23 31	S….
W	R	13	–2	P	B	G	23 31	S….
W	R	15	–2	P	B	G	23 31	S….

• W - Geyser

R - Power regulator

10 - Max. water consumption (l/min)

-2 - Version 2

P - Piezoelectric ignition

B - Electronic ignition system on batteries (1.5 V)

G - Electronic ignition system from a hydrogenerator

23 - Number of designation of work on natural gas H

31 - LPG designation number

S…. - Code of the country

How to clean the Junkers column with your own hands

Any repair work on gas-consuming equipment must be carried out by a specialist who has the appropriate work permit. Cleaning the pilot burner and the heat exchanger is a job that must not be done by yourself. Service is carried out at your own risk.

To clean the Junkers column at home, you will need to do the following:

• turn off the gas and water supply;

remove the cover;

disconnect the smoke inlet and water unit;

pull out the heat exchanger.

The water heater radiator is washed in warm water with the addition of any non-abrasive detergent using a stiff, long-bristled brush. You can clean the wick and the main burner with a special awl. Clean each nozzle, removing carbon deposits.

Do-it-yourself repair of Junkers geysers leads to the manufacturer's refusal to provide warranty service for the equipment.

Column selection features

The main difference between different models of gas water heaters is the way they are ignited, whether it is a product from junkers, bosch, Neva or Lux. Today it is very rare to find a device that is ignited with matches, so this option is not even considered.

The most popular speakers today are units with piezo ignition.In them, you just need to press the button located on the device panel. In addition, in such units it is possible to set the desired temperature of the supplied water.

Columns with electric ignition are the most expensive option, which can significantly save gas. The device is turned on automatically by the flow of water. The purchase of such products allows you to save on energy and get heated water with maximum convenience, which justifies the high cost of the column.
Modern geysers, which are offered by well-known brands, as a rule, have three levels of protection:

• From the extinction of the flame.
• Lack of draft in the pipe.
• The occurrence of such a process as reverse thrust.

The equipment is protected from overheating by means of a hydraulic safety valve.