Top 10 best gas heaters Bosch: rating 2021-2022 and what flow-through water heater to choose
Bosch is one of the leaders in the production of quality water heating equipment.
Reliability of gas water heaters is confirmed by the wide demand, positive feedback from experts and buyers from around the world.
Among the distinguishing features of the products are ease of use, high quality materials and stable performance of their function - providing hot water.
We have answered common questions about columns from the German concern and compiled a rating of the top 10 best gas boilers from Bosch for 2021-2022 in the price/quality ratio.
Bosch top 10 best gas boilers 2021-2022 ranking
| Place | Name | Price |
|---|---|---|
| Top 10 best gas boilers Bosch | ||
| 1 | Bosch WR 10-2P23 | |
| 2 | Bosch WTD 27 AME | |
| 3 | Bosch WTD 18 AME | |
| 4 | Bosch WR 10-2B23 | |
| 5 | Bosch WRD 13-2G23 | |
| 6 | Bosch W 10 KB | |
| 7 | Bosch WRD 10-2G23 | |
| 8 | Bosch WR 13-2B23 | |
| 9 | Bosch WRD 15-2G | |
| 10 | Bosch WR 15-2P23 | |
Contents
How to choose a gas water heater Bosch?
Experts recommend choosing a heater to compare a number of basic parameters that determine its functionality and reliability:
- performance - the amount of water in liters, which the device is able to heat for 1 minute (the recommended figure for 1-2 people - 7-9 l/min, for 1-2 faucet and shower - from 10 l/min, faucet, bath and shower - from 13 l/min);
- switch-on type - modern models are equipped with a penstick (semi-automatic) and electric ignition system (automatic);
- minimum water pressure - recommended figure for turning on the column is 0.15 atm.
The best Bosch gas water heaters
We have reviewed a wide range of gas appliances from the leading manufacturer and selected the most reliable of them, taking into account technical parameters and consumer reviews, and offer a ranking of the 10 best Bosch boilers for 2021-2022.
Bosch WR 10-2P23
Gas appliance with a heat output of 17.4 kW. Economical compared to 
electric water heaters and durable thanks to the manufacture of high quality materials.
All the necessary safety measures in the operation of the heater are taken into account.
The model is equipped with a multifunction control system.
The panel provides adjustment of temperature and power. The resulting hot water is distributed to several points simultaneously.
Among the features of the column is a modular burner that allows the equipment to operate at low pressure in the water supply.
For ignition, a semi-automatic system is used - the Piero ignition. The ignition is activated by pressing the button, which creates a spark.
Features:
- capacity - 10 l/min;
- power - 17.40 kW;
- maximum water temperature - +60 ° C;
- pressure - 0.10 to 12 atm;
- dimensions - 310x580x220 mm;
- weight - 11 kg.
Advantages of
- reasonable price;
- compactness;
- maintainability;
- fast start-up;
Cons
- included 1 hose to 1/2 male thread;
- slowly pours the bath.
Bosch WTD 27 AME
Gas-fired flow heater suitable for use in homes and apartments, in 
commercial and industrial premises.
Performance is enough to provide hot water at the same time 3 points, as it delivers 27 liters per minute. For this reason, the possibility of cascade connection is provided.
The advantage of the speaker is economical consumption of resources and stable operation at water pressure of 0.3 atmospheres.
The size of the model is compact, so it is suitable for small-sized rooms.
Turns on by means of electric ignition.
The panel is illuminated. For safe operation, the device is supplemented with a flame control system, sensors from overheating and freezing, as well as gas control.
Features:
- capacity - 27 l/min;
- power - 47 kW;
- maximum water temperature - +80 ° C;
- pressure - from 0.30 to 12 atm;
- dimensions - 452x775x259 mm;
- weight - 34 kg.
Advantages of
- quiet operation;
- high efficiency;
- easy adjustment;
- fast inclusion.
Cons
- regular cleaning is required.
Bosch WTD 18 AME
Gas-fired heater with a 31.60 kW heating output and forced 
Forced combustion system, suitable for installation in spaces without a chimney.
Equipped with electronic water temperature control system and atmospheric burner made of stainless steel. The advantage of this model is its ability to work with natural gas and bottled gas.
Switching is made by means of electronic ignition. The display shows the water temperature and error codes.
The device is equipped with ionization flame control, and the combustion products are forced out with the help of a built-in fan.
Water is quickly heated due to the high thermal conductivity of the heat exchanger and stably maintains the temperature with an accuracy of 1?C.
Features:
- capacity - 12 l/min;
- capacity - 31.60 kW;
- the maximum temperature of water - +80 ° C;
- pressure - up to 12 atm;
- dimensions - 364x568x175 mm.
Advantages of
- turns on quickly;
- keeps the temperature;
- supplies water to two points.
Cons
- noisy fan.
Bosch WR 10-2B23
Gas equipment with automatic electric ignition system. It has simple and easy 
in use controls.
The model is compact, stylish and easy to install.
The advantage is the high level of safety: in case of lack of air supply a special sensor switches off the device, thus preventing leaks.
Electric ignition is battery operated. The indicator on the panel informs about the necessity of their replacement.
The equipment is equipped with a thermal power of 17.40 kW, which provides a supply of 10 liters of water with a temperature up to +60 ° C per minute.
This is enough for 1-2 places.
Characteristics:
- capacity - 10 l / min;
- power - 17.40 kW;
- The maximum temperature of water - +60 ° C;
- pressure - from 0.10 to 12 atm;
- dimensions - 310x580x220 mm;
- weight - 11 kg.
Advantages of
- quiet
- thermal protection;
- electric ignition;
- convenient settings.
Cons
- no water temperature indicator;
- rapid clogging of the igniter.
Bosch WRD 13-2G23
Automated gas equipment with integrated ignition unit. With water flow 
the turbine rotates, which drives a hydro generator.
Electricity is produced, which feeds the unit and creates a discharge for ignition.
The model is characterized by its ergonomic design. Its dimensions are only 350x655x200 mm.
The product is equipped with clear controls, designed for maximum comfort and ease of use.
The water capacity is high - 13 l/min, which is due to the thermal capacity of 22.60 kW and the high thermal conductivity of the heat exchanger.
Sufficient for simultaneous water supply to 2 points.
Characteristics:
- capacity - 13 l / min;
- power - 22.60 kW;
- The maximum temperature of water - +60 ° C;
- pressure - 0.35 atm;
- dimensions - 350x655x200 mm;
- weight - 13.5 kg.
Advantages of
- heats well;
- lightweight
- compact;
- easy to set up.
Cons
- buzzing of the hydro generator;
- the front side of the device heats up.
Bosch W 10 KB
Column is suitable for home and commercial premises. It has the advantage of being equipped with 
The advantage is the modern Anti Overflow system for the safe extraction of waste smoke through the chimney.
Smoke does not enter the room even if the draft is low.
For safety, there is also a flame control system that immediately cuts off the gas supply if a spark goes out.
The equipment is notable for its compact dimensions and attractive design, as well as for its optimal performance.
Equipped with temperature sensors that protect it from overheating. It delivers 10 liters of water per minute, so the heat output is equal to 17.40 kW.
The advantage is the stable operation with water pressure of 0,15 bar and more.
Characteristics:
- capacity - 10 l/min;
- power - 17.40 kW;
- The maximum temperature of water - +60 ° C;
- pressure - from 0.15 to 12 atm;
- dimensions - 400x850x370 mm;
- weight - 10 kg.
Advantages of
- reasonable price;
- instant activation;
- operation at a low water pressure;
- high quality materials.
Disadvantages
- it makes a clicking sound during the ignition;
- no automatic temperature control.
Bosch WRD 10-2G23
Gas device with automatic ignition by means of a built-in hydro generator, 
which turns on when the water in the tap is turned on..
The model is equipped with an informative display of the water temperature. It is also safe thanks to the flame control, temperature control and smoke evacuation systems.
Easy to use thanks to intuitive mechanical control..
Water output is 10 liters per minute as the speaker is equipped with a copper heat exchanger and has a heat output of 17.40 kW.
Temperature is automatically maintained when water pressure changes.
Characteristics:
- capacity - 10 l/min;
- power - 17.40 kW;
- The maximum water temperature - +60 ° C;
- pressure - 0.35 atm;
- dimensions - 310x580x220 mm;
- weight - 11.5 kg.
Advantages of
- compactness
- works at low water flow;
- ignited by water generator.
Cons
- inconvenient pipe installation;
- the noise of ignition.
Bosch WR 13-2B23
Flow-through gas equipment equipped with automatic ignition with 
batteries and a convenient control panel.
The device is economical to maintain due to the low cost of fuel. Safe in use due to the sensors for controlling the game, reverse draught and temperature of the equipment.
The boiler is designed for simultaneous supply of hot water to multiple points. In a minute delivers 13 liters of water.
High water productivity contributes to the thermal capacity of 22.60 kW.
Two round batteries are used to ignite the boiler.. The panel has nozzles with power modulators, which ensures the stable operation of the speaker at a low water pressure.
Characteristics:
- capacity - 13 l/min;
- power - 22.60 kW;
- The maximum temperature of water - +60 ° C;
- pressure - from 0.10 to 12 atm;
- dimensions - 350x655x220 mm;
- weight - 13 kg.
Advantages of
- auto ignition;
- copper heat exchanger;
- convenient power control;
- Excellent work with modern faucets.
Cons
- Regular cleaning is required;
- expensive service.
Bosch WRD 15-2G
Flow-through gas appliance with electronic ignition. The flame is ignited 
by means of the built-in hydraulic generator.
The model has a high water output of 15 liters per minute.. Suitable for placement in homes and commercial premises.
The boiler operates steadily at a water pressure of 0.35 atm. If the water pressure decreases, the device automatically maintains the temperature.
The product is safe in use thanks to the automatic start system, which does not require adjustment..
The panel is completed by an indicator showing the temperature of the water.
The characteristics of:
- output - 15 l/min;
- power - 26.20 kW
- maximum water temperature - +60 ° C
- pressure - 0.35 atm;
- dimensions - 425x655x220 mm;
- weight - 15.5 kg.
Advantages of
- ignition without batteries;
- operation at low water pressure;
- temperature indication;
- the temperature is maintained.
Disadvantages
- high cost of service.
Bosch WR 15-2P23
Flow-through gas water heater with open combustion chamber. For ignition 
piezor ignition.
The flame is ignited after pressing the button. The model is equipped with a quality igniter to ignite the burner, which provides a heat output of up to 26.2 kW.
This gives a water output of up to 15 liters per minute..
The advantage of this model is the operation on liquefied and natural gas. The capacity of the device is enough to supply hot water to 1-3 points.
Power modulator ensures stable operation even at low pressure in the water supply.
The water is quickly heated up to +60 ° C, its temperature is automatically maintained.
Characteristics:
- capacity - 15 l/min;
- power - 26.20 kW
- maximum water temperature - +60 °С;
- pressure - from 0.10 to 12 atm;
- dimensions - 425x655x220 mm;
- weight - 16 kg.
Advantages
- high-quality heat exchanger;
- easy use;
- the presence of the power modulator;
- it works quietly.
Cons
- high price;
- non-standard connector for gas and water supply.
Advantages and disadvantages of the Bosch gas water heater
As with any gas-powered unit, the column has its pros and cons.
Here are some of the advantages of Bosch models:
- High-quality materials and reliable assembly;
- Equipped with the highest safety system;
- control over the disposal of waste products;
- a wide range makes it easy to choose the right model for home, commercial and industrial premises;
- automatic start-up and shutdown system;
- performance of the function even at a minimum pressure in the water supply.
Disadvantages of Bosch water heaters:
- installation costs associated with the need to call a certified technician;
- the high price of units;
- The small number of service centers.
Principle of operation
The operation of the gas equipment is carried out according to the following algorithm:
- After opening the tap in the heat exchanger the desired heat carrier enters, the heating burner is ignited from the igniter;
- water passes through the coil and is heated by the heat that is released in a large volume during the combustion of fuel (rapid heating occurs due to heat transfer with a huge speed, which is associated with high thermal conductivity of materials)
- Exhaust gases are produced under the influence of the natural draught in the chimney or forced extraction.
Customer reviews
Helpful video
From the video you will get acquainted with the review of the gas boiler Bosch:
