The Junkers gas water heater is a product of the German concern Bosch. Like all German equipment, these devices are easy to use, reliable, durable and economically consume natural gas.
About company
The Junkers brand merged with the giant Bosch Gruppe in 1932. And the brand’s history began back in 1895, when a factory for the production of water heaters was opened by the German engineer Hugo Junkers - inventor and industrialist. Junkers himself has patented about two hundred inventions - this is a record of his time. The company has introduced piezo ignition since 1968. Then a column with an ignition from 2 batteries was released. After 10 years, Junkers launched the world's first hinged combination boiler with continuous power control. The brand is known for its turbocharged speakers - not many manufacturers produce them. Bosch Thermotechnology - the largest global manufacturer of heating equipment, occupies a leading position in Europe.
Disadvantages
Even the famous German quality cannot completely eliminate the shortcomings arising from the design features of water heaters. Cons Junkers speakers:
- Almost all modifications are characterized by increased noise.
- After a few years (5-6), the heat exchanger begins to fail - leaks may occur.
- We have to seal the joints, and the gaskets that are equipped with the Junkers model are not enough to eliminate leaks.
Masters claim that the cause of problems with the heat exchanger is scale. The instruction manual recommends: for the equipment to function properly in the conditions of Russian water supply, it is necessary to install an additional water filter. This will increase the life of the device to 10-12 years. Not all consumers are attracted by this solution - they have to regularly change cartridges. Many users also do not want to take a bath in the water that has passed through the magnetic filter.
Benefits
Despite the serious disadvantages of Junkers water heaters, they are in demand in the domestic market, as they offer potential buyers a large list of advantages:
- Adaptation to domestic gas pipeline systems. In the Russian network, the pressure is 13 mbar, in Europe - 20 mbar.
- Work at a pressure of water from 0,1 atm.
- High performance - heat water at a rate of 11-17 l / min.
- There is a flame modulation system - the power automatically changes, ensuring the temperature stability of the heated fluid.
- Reliable security system.
- Reasonable price.
- Warranty - 1 year. The service life is 10–13 years.
How much are? The price of Junkers models depends on the sizes - all other characteristics of the models coincide. The manufacturer offers two versions: mini and standard. Cost - from 7,000 to 11,000 rubles.
How to choose?
The main difference in the Junkers models is the ignition method. Matches water heaters have not been kindled for a long time, there are more advanced ways to get fire:
- In devices of a series "P" piezo ignition is used - the most popular option. The device turns on at the touch of a button. Such versions have another important plus - you can set the water temperature. The ignitor burns constantly.
- In the "B" series heaters, electric ignition is provided - in this case, the device flares up from batteries. This option is more expensive, but gas is also consumed more economically - you do not need a constantly burning ignitor. The device turns on automatically when the coolant moves. These versions allow you to save fuel and use the device comfortably.
- In devices of the G series, Hydro Power technology is used for ignition - a special generator, there is no burning igniter.
Safety
Gas is a source of increased danger. Gas equipment, having a multi-stage security system, prevents possible emergency situations. All processes are controlled by automation, which at the slightest hint of a problem will prevent danger and block the flow of gas. In German columns protection is provided:
- from the extinction of the fire;
- from lack of traction;
- from reverse thrust;
- from overheating.
Model Overview
BOSCH Therm 4000 O WR 10-2 B ("B" series)
This model provides electric ignition using two batteries, automatic start, reliable security system:
- traction controller;
- ionization flame setting;
- safety valve.
Water pressure and temperature are set taking into account the flow in the pipes. There is a self-diagnosis with indication of faults. According to consumer reviews, this model has been working properly for 10 years or more. The cost is about 18,000 rubles. Management is mechanical. Specifications:
Productivity, l / min | 10 |
Rated thermal performance, kW | 17,4 |
Natural gas consumption, m³ / h | 0,86-2,1 |
Water temperature (min / max), ° C; | 30/60 |
Weight, kg | 11,5 |
Minimum water pressure, bar | 0,2 |
Dimensions (HxWxD), mm | 580x310x220 |
WR 10-2P (P series)
This device uses piezo ignition, the ignitor is always on. Separate setting of water pressure and flow. In versions WR10-P, 13-P and 15-P there is a thermoelectric device that controls the intensity of combustion. A copper radiator is installed; there is no tin and lead in the alloy. Convenient control panel. There is an indication of the state of the gas burner device. The piezo ignition button is at the bottom of the device. Water consumption and power are separately regulated. The burner is made of stainless steel. The material of the water reinforcement is polyamide reinforced with fiberglass. Cost - 13,000 rubles. Case color is white. Specifications:
Productivity, l / min | 10 |
Rated thermal performance, kW | 17,4 |
Natural gas consumption, m³ / h | 2,1 |
The consumption of liquefied gas, kg / h | 1,5 |
Water temperature (min / max), ° C; | 25/60 |
Weight, kg | 11,5 |
Minimum water pressure, bar | 0,1-0,2 |
Dimensions (HxWxD), mm | 580x310x228 |
WR 15-G ("G" Series)
This ignition apparatus is equipped with a hydrodynamic generator using Hydro Power technology. It work at a pressure of 0.35 atm. Models of the G series can work at 3 points of an intake. The manufacturer offers modifications: 10-G, 13-G and 15-G. Characteristics of the WR 15-G model:
Productivity, l / min | 15 |
Rated thermal output, kW | 26,2 |
Natural gas consumption, m³ / h | 3,42 |
The consumption of liquefied gas, kg / hour | 1,27 |
Water temperature (min / max), ° C; | 35/60 |
Weight, kg | 16,5 |
Minimum water pressure, bar | 0,35 |
Dimensions (HxWxD), mm | 655x425x220 |
Express instruction manual
After installing the equipment, made by specialists, the buyer of the geyser should read the instructions. The life of the device depends on proper operation. Rules for the user:
- Installation and maintenance are professionals.
- Periodic cleaning of the igniter and radiator is necessary.
- It is undesirable to set a very high heating temperature - this contributes to the accelerated formation of scale.
- If the water is very hard, the device needs a special device that prevents the formation of scale.
What are the problems?
More than half of all breakdowns occur due to violation of the operating rules. All other faults are related to problems in the power supply network, poor water quality and corrosion. If a factory defect is found, the device is sent to a service center to fix the problem for free. Paid repairs cost about 1000-2000 rubles. It is more profitable to take the water heater to the service, since the call of the master will cost more. The most common malfunctions:
- Cannot light the device. The ignitor lights up and goes out after a couple of seconds. The cause is a breakdown in the thermocouple, valve, or combustion product sensor.
- Water is not heated. The likely cause is a heat exchanger breakdown. Perhaps it formed a lot of scale.
- The device is noisy and overheating. The reasons are the same as in the previous paragraph.
- Water loss. Reasons - the heat exchanger is damaged or it is time to change the stuffing box.
- At work, claps are heard. The reason can be either too large or too small gas pressure. In any case, professional cleaning and adjustment will be required.
- The smell of gas. This problem should be treated with particular care. First of all, you need to close the gas valve and immediately ventilate the room, then call the gas service.
To fix the problem yourself, you need to:
- establish the exact cause of the breakdown;
- buy original spare parts;
- prepare the equipment necessary for repair;
- learn the rules for fixing a specific malfunction and clearly follow the instructions of specialists.
Before turning on the Junkers column after replacing a defective part, make sure that the fasteners are firmly fixed - gas leakage should be eliminated. Self-repair is possible if you have experience and knowledge on the design and operation of equipment. Spare parts must be used only original. Buying a new hydraulic valve will cost 7,000 rubles, you will have to pay 500 rubles for the igniter, and about 1,000 rubles for the traction sensor. The cost of an electronic device for ignition is 5 500 rubles.
Dismantling the gas tank "Junkers"
To repair a unit, perform preventive cleaning or replace a part, you need to disassemble the device in parts. The disassembly procedure is as follows:
- Remove the handle located on the water block. Set the gas regulator to a central position, unscrew the screws - they are located at the bottom of the case. On the "Junkers" instead of screws there may be clips. Now you can remove the case.
- Unscrew the screws securing the flue hood to the housing. Then - self-tapping screws from the strap screwed to the cap - it is needed to fix the heat exchanger.
- Sequentially remove the draft and temperature sensors, disconnect the wires from them. The Bosch and Junkers columns have a difference: the former can be easily removed from the traction sensor, while the latter are soldered and cannot be removed.
- Detach cap from heat exchanger and housing and remove. Use caution when removing the nozzles. There are rubber seals in the nozzles - during assembly it is advisable to replace them with new ones, since they tend to age and dry out.
- Disconnect the wick tube from the burner.
- To remove the burner, you need to unscrew the screws and, having pressed the thermocouple with a screwdriver, remove it from the burner body.
Reviews
Junkers WR 13P: Sofia I., Kaluga
It has been working for less than a year, but this was enough for us to want to change it. Constant leaks are already tired. The heat exchanger had to be sealed twice. This item seems to be made of foil. Every week you need to repair something, tighten - tired. Seals leak all the time. The gearbox broke in two months. Of course, there are pluses - easy ignition, low pressure operation, high performance. But noise and leaks spoil the whole picture.
Junkers miniMAXX WR 13G: Timothy ABOUT., Rostov-on-Don
Nice device - lasted 3 years without any problems. And then the heat exchanger began to flow. After disassembling, it turned out that there was a crack in it. It is strange that such a famous brand has such flimsy heat exchangers. Of the benefits - ignition without batteries. The wick lights up from a small generator that rotates under the pressure of a water stream. Good performance - 13 l / min. It happens that the flame goes out for no apparent reason, and did not understand, because of what.
Junkers speakers are on the same quality line as the Bosch and Electrolux models. This equipment will satisfy the most demanding customers - it is simple, reliable and safe. And most importantly, it provides a stable supply of hot water, which is a prerequisite for comfort in everyday life. An important drawback noted by users is the unreliable heat exchanger. This problem is associated with water quality and consumer reluctance to install additional filters, which the manufacturer insists on.