Wall-mounted gas heating boilers Navien. Gas boiler Navien (Navien) Gas boilers navien
It is well known that South Korea is a country of high technologies, supplying the widest range of modern household appliances around the world, including in the states of the former USSR. And more recently, this list has been replenished with heating equipment running on natural gas. We present to your attention a product of a well-known Asian brand - the Korean gas boiler Navien, which has been sold in Russian Federation and managed to win a certain positive reputation.
Model range of wall-mounted boilers Navien
It should be noted that the first reviews of Russian users about this product were not too enthusiastic. There are objective reasons for this, one of them is frequent leakage of connections, which was eliminated by replacing an expensive set of gaskets. Another nuisance was that the Navien Ace boiler offered at that time pestered users with a late start-up of the burner, when the coolant in the batteries had time to cool down pretty much.
The company has clearly worked on the bugs, because negative reviews has become much smaller, and the number of supporters of the South Korean manufacturer has grown significantly, primarily due to the affordable price of decent quality products. At the moment, under the Navien brand, 3 types of suspended gas heat generators are offered:
- atmospheric;
- turbocharged;
- condensation.
The atmospheric series of units with an open combustion chamber is represented by the Navien Atmo brand boiler, which replaced the not-so-successful Ace model. The heat generator is adapted to difficult operating conditions, which is reflected in the low operating pressure of gas (from 8 mbar) and water in the centralized network (from 0.6 bar). The series includes 4 boilers with a capacity of 13, 16, 20 and 24 kW, equipped with a copper heat exchanger for heating and a separate stainless steel one for heating water for domestic hot water needs.
Note. In Russia and the CIS countries are delivered only double-circuit boilers Navien in both wall and floor versions. In addition, all Navien units are equipped with modulating burners, an integrated expansion tank and circulation pump, as well as an electric ignition system.
The unit is controlled automatically by means of a remote control. In addition to the minimum set of protective automation, the boiler has an additional system that prevents the coolant from freezing. At the same time, the manufacturer prohibits filling the heating system with antifreeze, the heat generator is not suitable for this. Main specifications Atmo series are as follows:
- water heating temperature in the heating system - 80 ° C, operating pressure up to 3 bar;
- in the DHW circuit, water is heated up to 60 ° C;
- gas pressure - from 8 to 18 mbar;
- Efficiency - 86%;
- water pressure in the network - from 0.6 to 8 bar.
Turbo models
Navien range of wall-mounted boilers with closed camera combustion includes as many as 3 series of units:
- Deluxe - 7 heat generators with power from 13 to 40 kW.
- Prime - 6 products with a capacity of 13-35 kW;
- Smart TOK - 6 heaters from 13 to 35 kW.
For reference. The hanging boiler Navien Ace Turbo is a thing of the past, and its place is taken by the Deluxe and Prime brand units.
The difference between supercharged heaters is that the air supply to the closed combustion chamber is carried out forcibly by means of a fan, its performance is controlled by the controller. Air entering through the coaxial chimney from the street enters the sealed housing, where it is captured by the fan. Thanks to forced injection, all these models have an increased efficiency of 92%.
This is where the fundamental differences between turbocharged units and atmospheric ones end. Their equipment is just as rich: the Navien Deluxe wall-mounted gas boiler is equipped with an expansion tank, a pump and an additional heat exchanger for hot water. In addition, the device withstands voltage drops of ± 30 V from the nominal value, and also automatically turns on heating when the coolant temperature drops below 6 ° C, bringing it to 21 ° C.
The Prime series, as well as the Deluxe Coaxial boiler, is equipped with a closed combustion chamber and other functional elements listed above. The difference is in the additional weather-compensated automation module that controls heating depending on the conditions. environment. The SmartTOK series is even more automated, these boilers can be controlled remotely via the Internet. To do this, you need to have a smartphone and download a special application to it.
Condensing heat generators
Unlike the modifications discussed earlier, the Navien NCN and NCB boiler heat exchanger is made of stainless steel and is designed to take away not only direct, but also latent heat released during gas combustion. Hence the high efficiency of the units, the manufacturer declares it at the level of 98%. The complete set of products is the same as for turbocharged boilers, only the controller has an extended number of functions, for example, programming the climate in the house for a week in advance. The NCN series consists of 4 products with a heat output range of 21-40 kW, NCB - of 4 heaters from 24 to 40 kW.
As for the technical characteristics, in condensing heat generators, hot water for the heating system can be heated up to 90 ° C, and for hot water - up to 65 ° C. The maximum water pressure in the centralized network has also been increased, the boiler can withstand up to 10 bar. The air supply is forced, it can be carried out both with the help of a coaxial and a separate chimney. That is, the homeowner can choose whether to take air from the street or from the boiler room.
Floor standing boilers Navien
This type of heat generators is positioned by the manufacturer as universal, they can operate on diesel fuel and natural gas. In fact, Korean floor-mounted gas boilers are just as well stuffed with automation as their wall-mounted counterparts. The difference is in the installation method and the maximum power of some models. The line includes 4 series:
- LST, 8 products from 13 to 60 kW.
- LFA, 6 heaters from 13 to 40 kW.
- GA, 7 boilers with a capacity of 11-35 kW.
- GST, 5 units from 35 to 60 kW of power.
In terms of technical characteristics, they are also close to suspended ones, the maximum operating temperature is 80 ° C, pressure - 3 bar. Efficiency index - 91%, air supply method - forced injection.
How to turn on the Navien boiler
A feature of South Korean heaters is the presence of remote control panels, which are supplied with all products. The attached instruction manual states that the boiler can be turned on either using the remote control or using the buttons on the front panel of the unit. This operation is simple: you need to press the "power" button, its location is shown in the diagram:
After starting, the boiler will automatically start working in the mode that was last set on the remote control. To change the settings, you need to take the manual and use it to correctly set all modes. Before starting a new heat generator, you need to install it, connect it to all engineering networks and fill the heating system with water, focusing on the boiler pressure gauge. The location and purpose of the nozzles is shown in the figure:
Navien boiler errors
During start-up and operation, various error codes may appear on the display of the device, indicating a malfunction of the boiler or malfunctions in the heating system. The explanation of all codes is given at the end of the instruction manual, but not always on understandable language. We will give an explanation of frequently occurring errors.
If the boiler stops and error 02 appears on the display, this indicates that the flow sensor has been triggered in the heating system. The reasons may be:
- out of order or disconnected from power circulation pump;
- there is air in the system;
- the filter at the coolant inlet to the boiler is clogged;
- there was a leak, and make-up does not work;
- the sensor itself or its electrical circuit is faulty.
When the unit does not start, and error 03 is on the screen, the cause is in the flame sensor. It works if it “does not see” the fire, which means that there may be problems with the gas supply or its pressure is too low. Also, the cause may be contamination of the ignition electrodes or the surface of the sensor. The failure of the sensor itself or the absence of a signal due to an open circuit cannot be ruled out.
Conclusion
South Korean Navien boilers using natural gas have become familiar to many users, although they have appeared relatively recently. In general, their work is characterized positively, but there are significant shortcomings. For example, a ban on the use of antifreeze in the system, which is very important in harsh winter conditions.
Finding a suitable gas boiler today is very difficult - as always, the main problem lies in the huge choice. Even the products of one manufacturer can impress with their extensive model range, not to mention several dozen brands in the heating market.
The Korean-made Navien gas boiler simplifies this task - each line contains Navien's own developments of engineers, optimized in terms of power, energy consumption and ease of operation. Why, among all the variety, buyers prefer this particular heating technique - in our article.
What distinguishes Navien equipment from analogues
The Korean company is one of the few in the world that prefers to use its own developments in the production of heating equipment. OEM products are not produced here - modified early samples to increase sales. Each piece of equipment is worked out to the nuances, which allows you to create equipment that is ideal for autonomous heating private houses, apartments and industrial enterprises.
Wall mounted gas boilers Navien
Among the key advantages over the products of other brands are:
- intelligent remote control via iOS or Android systems - the SMART-TOK line of boilers;
- modulated gas burners responsible for the silent operation of the unit, a gradual change in temperature in a mode that is comfortable for a person and the absence of thermal effects on the internal structure;
- modulated by a turbocharging system with a large operating range of regulation;
- voice prompts for easy control and configuration of Navien gas boilers;
- full compliance with Russian operating conditions - low gas pressure, voltage drops in the network, lack of constant pressure in pipes, etc.
In other words, the Korean manufacturer took into account all the potential risks and offered a completely new vision for gas equipment. It has become not only convenient, but also completely safe.
Studying real reviews on Navien gas boilers, it becomes clear that buyers have already managed to evaluate the stability of burners, the quality and insulation of heat exchangers, and a very long period of trouble-free operation. Even according to the estimates of service center specialists, breakdowns of Navien equipment are treated in only 2% of cases, and in most cases this is due to an installation error or incorrect reading of the instructions.
VIDEO: Gas double-circuit boiler NAVIEN 24: review and reviews
The lineup
There is a whole gradation of heating equipment, formed according to individual characteristics.
By functionality
- turbocharged with a unique combustion chamber and a coaxial chimney system;
- atmospheric - with an open combustion chamber, where flue gases are vented to the outside according to the principle of natural draft;
- condensing - direct the heat released during the condensation of water vapor to the coolant, which saves fuel consumption by 20%.
By the number of circuits
- single-circuit - designed only for space heating;
- double-circuit - for heating and providing hot water.
By way of placement
- wall-mounted - mounted on the wall, compact dimensions, do not require a separate or closed room;
- floor - more bulky equipment, which is recommended to be installed in a separate room.
The maximum range is presented in the line of wall-mounted boilers - according to statistics, it is this product that is most in demand among consumers.
Popular Attachment Models
Wall mounted gas boiler Navien ATMO 24AN
Deluxe ACE (ATMO) - 24 kW, open combustion chamber
Convection double-circuit gas boiler Navien ATMO 24AN with an open combustion chamber. The power of the equipment is 24 kW, which is designed for heating 200-220 sq.m. Max Flow fuel 2.47 m3/h. The volume of hot water - 13.4 l / min. There are two heat exchangers:
- copper;
- from heat resistant steel.
Only one burner is included in the kit, if necessary, they purchase a replaceable one and switch the boiler to bottled (liquefied) gas.
The complex includes:
- expansion tank;
- remote controller remote control with 2 thermostats.
Price 25599 rubles. In remote regions reaches 27,000 rubles.
Wall mounted gas boiler Navien DELUXE 24K
Deluxe 24K White (Korea Type)
convection attachments with closed combustion chamber. At an equal price with the previous model, it has a big drawback - there is only one heat exchanger and it is made of heat-resistant steel. This reduces the overall power of the equipment and makes it less resistant to operating conditions. In general, the characteristics are standard - power 24 kW, designed for a room with an area of 200-220 sq.m. Productivity of hot water supply - 13,7 l/hour.
When choosing boilers, managers are advised to adhere to the formula of 1 kW of power for every 10 square meters premises. But this - ideal conditions operation, when the house is qualitatively insulated (walls, floor and ceiling), insulated metal doors, metal-plastic windows, bimetallic radiators. We advise you to take 1 kW of power for 7-8 sq.m.
The kit includes:
- circulation pump 12 volts;
- expansion tank;
- remote control with 2 thermostats;
- room thermostat.
Bonus: electronic control of equipment operation with self-diagnosis function.
The cost is 24999-27999 rubles.
Navien Smart Current 24K
Among all coaxial hinged boilers, this one is the best. The "stuffing" includes:
- closed combustion chamber with copper heat exchanger;
- modulating gas burner, for operation with liquefied gas it is easy to switch;
- electronic control system with self-diagnosis of malfunctions - the error code is displayed on a plateau;
- remote control;
- program for selecting the operating mode and power of the unit;
- built-in piping with expansion tank and circulation pump;
- street and room temperature to stabilize work;
- intelligent remote control via iOS or Android systems.
If necessary, you can control by voice. The operating time is limited by a timer.
Power is regulated in 3 modes - 8-24 kW, which makes it possible to reduce gas consumption. Designed for an area of up to 220 sq.m. The hot water supply capacity is 13.9 liters per hour, the maximum fuel consumption is 2.8 m3/h.
Bonus: Even with low gas pressure, the room will have a stable temperature and hot water supply. The manufacturer guarantees uninterrupted operation of heating and hot water even when the voltage in the network changes.
Cost - 45500 rubles.
VIDEO: A simple solution main problem wall mounted gas boilers
Studying the reviews of owners and specialists, it is clear that in general this is a fairly reliable equipment that rarely fails. But problems arise here too, and often this is due precisely to errors or peculiarities of operation.
In some cases, you need to immediately contact the service center, especially since the Navien gas double-circuit wall-mounted boiler is repaired under warranty only if there was no third-party intervention.
Error code 01
This error means pressure drop. The reasons may be the failure of the circulation pump or the formation of a plug (clogging).
What to check:
- filter so that there is no air locks- can be bled on radiators;
- operation of the circulation pump;
- coil resistance;
- operation and no damage to the pump impeller.
After the end of the warranty period, all problems must be checked and repaired by a qualified technician. The gas boiler does not allow amateurism, so it's not worth the risk.
Error code 02
It means the appearance of air locks in the system, a decrease in water pressure, damage to the pump impeller. In addition to the error code that is displayed on the display or plateau, the indicators are:
- lack of hot water from the tap - at first it can go warm, then generally cold, since the flow force is not enough for the burner to work;
- cold water at the maximum temperature on the remote control;
- no hot water, but the heating works properly.
What do we have to do:
- Bleed air pockets.
- Check coil resistance.
- Check the impeller for mechanical damage.
- Check the operation of the flow sensor.
- Disassemble the flow sensor if it is defective and clean the flag. It is he who is responsible for coordinating the flow pressure.
Error code 10
The reasons may be:
- fan malfunction;
- installation errors in which the air pressure sensor is incorrectly connected;
- chimney blockage;
- cutting strong wind blowing out the burner.
What to do:
- If the fan is damaged, replace it.
- Clean the chimney with chemicals.
- Check that the sensors are connected correctly.
The appearance of noise in the boiler
It is very rare, but it occurs when the Navien wall-mounted gas boiler starts to make a distinct noise when hot water is supplied, but does not give an error. The reasons may be a poor-quality coolant or an increase in water pressure. As a rule, we are talking about clogging of the heat exchanger, so it must be removed and thoroughly cleaned.
When operating equipment for more than 5 years, it is almost impossible to clean the heat exchanger, so it is better to buy a new one and install it.
Error code 011
This problem is typical for gas boilers with a storage tank and shows that the heat exchanger is clogged with low-quality coolant. In most cases, such an error appears on original equipment that is not adapted to our conditions. You can order an adapted gas boiler from authorized dealers, which no longer reacts to water quality.
Not a single error can be called critical for the operation of the equipment, especially since the owner of any boiler, not only the Korean Navien, may encounter this. Another thing is that the latter rarely fails, which is what Russian users appreciate.
VIDEO: Commissioning gas boiler NAVIEN
Korean wall-mounted double-circuit gas boilers Navien are by far the most the best option when buying, given the sharp rise in price of all imported heating equipment. Of course, the increase in the price of gas boilers has affected all manufacturers, but you must admit that it is one thing to pay 30-35 thousand rubles for a boiler, and another to buy it for 50-60 thousand.
Is it worth overpaying, in fact, for the same thing, only made in Italy or? Good build quality, reliability, customer reviews and, most importantly, low price have made the Navien brand very popular in Russia in recent years.
In this review, we will try to understand the models of Navien boilers on the Russian market, their differences, device and technical characteristics, as well as the advantages and disadvantages of boilers of this brand.
Features of models of gas boilers Navien
In the Russian market, the company sells double-circuit wall-mounted gas boilers, both with forced draft (turbocharged) and natural (atmospheric). They are designed for heating a house with a total area of 30 to 400 m2, depending on their capacity.
All models are double-circuit, which makes it possible to use them for heating household running water for domestic needs. They can operate on natural and liquefied gas.
gas boilers Navien Prime and Navien Deluxe
The performance of hot water also depends on the power of the gas boiler. The higher its power, the more water it will give you. Boilers with a capacity of 13 kW produce 10-11 liters of hot water per minute, from 16 kW to 24 kW - 14 l / min., from 30 kW - about 16-17 liters. In practice, it has been proven that for good security hot water a family of several people is quite enough productivity of 14 l / min.
Turbocharged boilers are represented by a wide power range from 13 to 40 kW. The number in the abbreviation indicates thermal power specific model wall boiler.
In stores you can find the following models:
— Navien Deluxe 13k;
— Navien Deluxe 16k;
— Navien Deluxe 20k;
— Navien;
— Navien Deluxe 30k;
— Navien Deluxe 35k;
— Navien Deluxe 40k.
Boilers Navien Deluxe Coaxial - Specifications
Table of technical characteristics of Navien Deluxe Coaxial boilers
In addition, turbocharged (with a closed combustion chamber) double-circuit gas boilers of a Korean manufacturer differ in the type of output of combustion products and air inflow.
They are of two types:
- with a coaxial chimney;
- with a separate chimney.
Boilers Navien with a coaxial chimney are labeled Deluxe Coaxial. In previous years, a 24 kW turbocharged boiler was designated as Navien Ace 24 E. Where the letter "E" meant "Euro", i.e. European type of chimney pipe.
A coaxial chimney is a pipe-in-pipe chimney. Air flows into the boiler from the street through the outer pipe, and combustion products are ejected through the inner pipe. The diameter of these pipes is 60/100 mm, which is also indicated in the instructions.
For those situations, if the installation of a gas boiler is impossible according to the project, practical and cunning Koreans came up with a boiler with the possibility of installing the so-called separate chimney.
This type of turbo-boiler is already equipped with two pipes for connecting: the first pipe, which ejects combustion products, and the second one for air suction. Instead of the second pipe, you can also put aluminum corrugation, it is cheaper. The nozzle diameter is 75 mm and 70 mm, respectively.
This type of boiler is marked with the letter "K", i.e. Korean version of the chimney. For example, if you see the designation Navien Deluxe 16K on the price tag of a boiler in a store, this means that you have exactly this type of Korean-made double-circuit gas boiler. See photo below.
When choosing a boiler, also keep in mind that boilers with a Korean version of the chimney are produced with a maximum power of up to 40 kW inclusive, while with a coaxial pipe - only up to 30 kW.
Boiler Navien Deluxe 24K with channel separator
Line of gas boilers Navien with open combustion chamber represented by models with a capacity of 13, 16, 20 and 24 kW for space heating from 30 to 240 m2. They are marked Navien Ace 13-24 A.
The symbol "A" tells us that this device is atmospheric, and the numbers - about its power. On boilers of this type there is no fan (turbine), and the output of combustion products occurs by natural draft.
An atmospheric boiler can be bought if your house already has a chimney, for example, from asbestos-cement pipes, sandwich pipes or brick pipes. It will simply be necessary to purchase separately pipes made of steel (preferably stainless steel), and bring them into an existing chimney.
The diameter of the nozzle on the boiler is 130 mm. This is important to remember, because it is impossible to narrow the chimney.
And, if, for example, you have an asbestos pipe with an inner diameter of 100 mm, then it will have to be replaced with pipes of a larger diameter. Otherwise, the boiler will not work correctly and will quickly fail.
The device of double-circuit gas boilers brand Navien
Like most modern double-circuit wall-mounted gas boilers, South Korean-made boilers are equipped with:
The device of a double-circuit gas boiler Navien Deluxe Coaxial
- the main heat exchanger for heating water in the heating system;
- secondary heat exchanger for heating hot water;
- circulation pump;
— membrane expansion tank;
- electronic board ("brains" of the boiler);
- burner assembly;
- safety group (air and safety valve, pressure gauge, sensors);
- a three-way valve for switching the operation of the circuits;
- turbine (for versions with forced draft).
Design features of double-circuit boilers Navien
1. Navien boilers have two separate heat exchangers: one for heating, the second for running domestic water. An important feature is that both heat exchangers are made of stainless steel.
Then, like most competitors, only the secondary heat exchanger is made of stainless steel, and the main one is made of copper, or there is only one bithermic copper heat exchanger for heating both circuits. Stainless steel in itself guarantees a long service life of a gas boiler.
2. Another important point is that the company produces all the elements of the boiler itself. Both the pump and membrane tank and heat exchangers are made in South Korea. Unlike, say, many others, in which parts from different manufacturers are often installed.
3. The electronic board of the Navien boiler has a special built-in chip to protect against power surges. The same protection of the "brains" of the boiler is provided only on wall-mounted gas boilers made in Germany, but the heating equipment of this brand belongs to a different price category.
But, despite this chip, experts still recommend buying it, given our Russian realities, when the range of power surges in the mains can be quite decent.
4. And finally, the most noticeable distinguishing feature Korean manufacturers are remote boiler control unit Navien. This is such a special "box" that has a digital display and buttons for controlling the operation of the boiler.
Boiler control unit Navien
The display shows information about any malfunction and error during the operation of this equipment, the set temperature of water, coolant, air, as well as time. Using the buttons, the operation parameters are manually set: mode, temperature, turning the boiler on and off.
Very important point- this is the presence in the control unit, a built-in sensor for the air temperature in the room. Usually, for other manufacturers, this sensor is considered as additional option and is purchased separately.
The "Koreans", however, it comes with a boiler. And you don’t even need to buy wires: they are already on the boiler and on the block. The difference is made by boilers of the series Navien Prime And Navien Deluxe Plus. The control unit here is built into the body of the device and, as a result, there is no ambient temperature sensor.
Connection and installation of the Navien boiler
Like all wall-mounted double-circuit gas boilers, the "Koreans" have 5 fittings at the bottom of the body for connecting water and gas. The order of fittings from right to left: gas connection, running water inlet and outlet, coolant inlet and outlet.
The diameter of fittings for domestic water is 1/2 inch, gas and coolant 3/4 inch.
Be sure to install on each supply pipe.
Between the boiler and the wall on which it will hang, it is necessary to install protective screen from stainless steel measuring 1000 by 600 mm for fire safety purposes. Also for correct installation boiler on the wall, a special mounting plate is included in the package.
Connecting the gas boiler Navien Deluxe Coaxial
Advantages of Navien boilers:
— good price-quality ratio;
- two stainless steel heat exchangers;
- the presence of a remote control unit with a built-in air temperature sensor;
- the presence of a protective chip against a power surge;
- a wide range of models and colors;
- cheap spare parts.
Disadvantages of Navien gas boilers:
- noise during operation;
— Fit only native spare parts;
is an Asian brand.
So, we reviewed the range of Korean wall-mounted double-circuit gas boilers Navien, their differences, dismantled the external and internal organization boiler. Watch a video review of the boiler.
Looking at the technical characteristics, as well as reviews of owners and specialists, Korean-made Navien boilers are perhaps the best for choosing heating equipment today, if we take into account such a parameter as price-quality. In general, this is a very worthy and inexpensive device for modern system heating your private home.
For residents of Moscow and all of Russia, water heaters of the most different brands, both well-known and yet unpopular. You can buy them in just a few clicks, and the most difficult thing is to choose the right model, because our online catalog includes hundreds of different solutions for the home, commercial and industrial sectors. The price of units has a wide range and completely depends on their technical and consumer indicators.
Water heaters for industrial use
Devices for use in enterprises are represented by storage water heaters, boilers with indirect and combined type of heating, as well as flow devices. The range of accumulative devices includes units with a capacity of 100 liters, and modules working with running water have high power and provide prompt water heating. The most sought after manufacturers are
- Stiebel Eltron
- Ariston
- Gorenje
- Atlantic
- Australia Email
Home water heaters
The household sector is represented by many brands. From high-end Bosch, Stiebel Eltron, Vaillant and Aeg to Electrolux, Ariston, Zanussi and Timberk from the middle price category, as well as Edisson, Ballu, Garanterm, Zota and Superlux from the budget category. Here are located electric and gas appliances that meet international quality requirements and are simply convenient, durable and productive.
In the assortment you can find accumulative devices of flat and round shape, with a stainless steel tank and covered with enamel. There are also models of pressure type - for several water consumers - and non-pressure, which are ideal for country use.
The functionality of the devices deserves close attention. Absolutely all units have convenient control, which allows you to adjust the main parameters of work. Many are additionally equipped with several power levels and the ability to heat water in a very operational mode. The best of the best boast features such as timer operation and remote access to performance monitoring.
Each buyer, when choosing heating equipment, wants to get a reliable, functional and efficient device adapted to the conditions of the Russian climate. These units include Navien gas boilers, which are not afraid of voltage drops and are able to operate in a system with a water pressure of 0.1 bar. Increased demand for relatively young trademark justified by the low cost, thought out to the smallest detail design, functionality and the possibility of using it for heating apartments, houses, office and warehouse premises.
The country of origin of Navien heating boilers is South Korea, but some of the components (mainly gas fittings) are manufactured in Japan. The company has recently been engaged in the design and manufacture of thermal equipment, but quite successfully incorporates the best practices of European companies and introduces its own technologies, offering consumers a high-tech product at an affordable cost.
The largest Korean company Navien modernizes and expands the range of manufactured gas heating equipment. The main models are presented in floor and wall versions, in three colors: white, gold and silver. Unique technological solutions in the design of heat generators:
- a heat exchanger made of stainless steel has an increased service life;
- the SMPS chip installed on the microprocessor guarantees protection against power surges within ± 30%;
- the anti-freeze system automatically starts the circulation pump at a coolant temperature below 10 °C;
- a sensor built into the control panel provides control and regulation of the climate regime in the room;
- each model has a circulation pump, water filter and expansion tank.
Varieties of Navien products
1. Wall-mounted double-circuit gas boilers Navien of the Ace series are presented on the Russian market in two modifications - with an open (ATMO) and a closed (Turbo) combustion chamber. They can work with priority on hot water supply or heating (at the user's choice), fully adapted to the conditions of unstable supply of energy carriers - gas, electricity and water.
- Ace ATMO is called the traditional series of atmospheric boilers, which is the best offer from the company in terms of price and quality - the cost of equipment ranges from 18,700 to 19,200 rubles.
- In Ace Turbo boilers, a modulated turbocharging system regulates the air flow into the combustion chamber so that its amount is proportional to the incoming gas. At the same time, the performance of the heat generator increases, while thermal losses and gas consumption decrease.
You can buy a wall-mounted gas boiler Navien Ace Turbo with a power range from 10 to 35 kW, sufficient to heat an area up to 350 m 2. Two variations of turbocharged heat generators are distinguished by a smoke exhaust system - an outlet for a Korean (Korea) or European (Coaxial) coaxial chimney (you can find out what a coaxial pipe is by). The price of Korean boilers of the Ace Turbo Coaxial and Korea series is almost identical and ranges from 20,000 to 25,000 rubles, depending on performance.
2. Floor boilers from Navien GA and GST are compact in size. Outlet pipes are located on both sides of the body for the possibility of tying on the left and right, which is very convenient in small spaces.
Each model is equipped with a silent pressurized gas burner, and the smoke exhaust system provides for the exhaust gases to be removed both into the existing chimney and through the outer wall.
- A feature of Navien GA is a conventional steel heat exchanger, which has a lower cost. For example, the price of a GA-35K is 10,000 less than a GST-35K floor standing boiler with a stainless steel heat exchanger.
- The GST series is structurally similar to the representatives of the GA line, but is a more powerful option for stationary generators - from 34.9 to 81.0 kW.
3. Navien NCN condensing boiler can be called a new generation appliance: thanks to advanced technology, the design is not only economical and energy intensive, but also meets all environmental safety requirements. Compared to traditional gas heat generators, when operating in condensing mode, the gas consumption is reduced by 30%, and the volume of smoke emissions is reduced by up to 70%. At the same time, the efficiency reaches 108%.
The built-in digital controller provides the collection and supply of information, and also conducts self-diagnosis. Due to the low temperature of the gases, the smoke exhaust system can be assembled from plastic pipes.
Description of Navien models
| Parameter | Ace ATMO | Ace Turbo Korea | Ace Turbo Coaxial | NCN | GA | GST |
| power, kWt | 13,0-24,0 | 10-40 | 10-30 | 19,6-37,9 | 11,6-34,9 | 34,9-81,0 |
| Efficiency, % | 80-86 | 90-92 | 90-92 | 98/108 | 91 | 90-91,5 |
| Heated area, m 2 | 130-240 | 100-400 | 100-300 | 190-380 | 110-350 | 350-810 |
| Mains voltage, V | 220; ±30% | |||||
To put into practice the initially laid down efficiency of devices will allow the correct setting geysers Navien, which should be carried out only by specialists.
Comparative characteristics of various Navien boilers:
| Model | Peculiarities | price, rub. |
| Ace-16A ATMO |
| 18 800 |
| Ace-24A ATMO |
| 19 200 |
| Ace-13K TURBO |
| 19 500 |
| Ace-30K TURBO Coaxial |
| 24 300 |
| GA-11K |
| 28 860 |
| GA-35K |
| 32 600 |
| GST-35K |
| 44 890 |
| NCN-25K |
| 40 800 |
| NCN-40K |
| 42 600 |
The main parameters and characteristics for the correct selection are indicated in the operating instructions for gas heating systems:
- Power is an indicator that affects the ability to effectively heat the required area.
- Installation - wall or floor. The installation option depends on the required power and the availability of free space in the room. On the Internet you can find photos of Navien gas heating boilers with various types canopy (most often in the kitchen).
- Type of burner - atmospheric or turbocharged. In the first case, the flame will be constant, and in the second, it will change smoothly and continuously, which provides more economical consumption gas.
- Smoke exhaust system - with natural or forced draft. The choice of boiler according to the type of chimney depends on the ventilation of the building.
- Traditional boiler or condensing. The additional thermal energy of the combustion products makes it possible to economically consume gas, but the cost will be much higher than a conventional gas thermogenerator.
