Overview of models of gas boilers manufactured by the Korean company Navien. Wall-mounted gas boilers NAVIEN Ace TURBO

Navien Ace gas boilers are distinguished by high quality and reliability in operation. However, the duration and features of operation depend on how correctly you were able to install and configure the Navien Ace boiler, as well as on the quality of the fuel used.

Gas heating equipment of the Korean manufacturer Navien is represented by double-circuit boilers, including condensing ones. Its design advantages include the presence of two heat exchangers made of high-quality stainless steel, a remote control unit and the possibility of modulating the burner power. The entire range is certified, a protective chip against voltage surges is mandatory, it is allowed to start at low pressure in the supply gas and water supply.

The hallmark of Navien gas boilers is the anti-freeze function, the heating system effectively responds to sudden changes in ambient temperature. The feedback from the owners is mostly positive, the shortcomings include noise (only for models with a Coaxial chimney) and low maintainability (in case of malfunctions, only spare parts from the manufacturer are suitable). In general, this is an affordable technique, you can buy it without any problems in any store, the minimum warranty period is 2 years.

Brief description

1. Navien Smart 30K.

Lightweight wall-mounted gas boiler with a hot water circuit for servicing an area up to 300 m2, runs on natural and liquefied fuels. It is characterized by high performance: when heated to 25 ° C - up to 17.2 l / min, up to 40 - 10.8, this is enough to meet the needs of an average family. The model is designed to operate at power surges and pressure drops in the gas main, including the operation of the water heating circuit. If desired, the heating mode is selected according to the temperature of the incoming or return coolant, a three-stage power adjustment, this made it possible to reduce fuel consumption in comparison with analogues (the range declared by Navien is from 1.27 to 3.23 m3 / h, the owners' reviews confirm it). The turbocharging system is Coaxial modulated, the efficiency of the boiler reaches 90.9%. The control is fully automated, the outside temperature data is taken into account, the parameters are changed remotely using a smartphone or a remote control.

2. Navien Deluxe 10K.

Double-circuit boiler with wall placement with frost protection and a Coaxial turbo fan under the firebox. This model is characterized by high efficiency (up to 91.2%), average DHW capacity - no more than 11.5 l / min, and economical gas consumption - natural from 0.75 to 1.16 m3 / h, liquefied - 0.63- 0.97 kg/hour. The control system is automated, the control panel is fully Russified. The entire Navien Deluxe series is adapted to work in conditions of frequent power supply voltage fluctuations (a chip with a response threshold of ±30% of 230 V is installed). Both circuits are active even at low pressure in the incoming water pipe (up to 0.1 bar). The presence of a turbocharged fan allows you to optimize the "fuel-air" ratio and reduce heat losses from the outgoing combustion products.

3. Navien Ace 24.

Sales leader Navien, according to reviews, this boiler from Korea is trouble-free even with unstable parameters of gas and water in the supply lines, often observed in our realities (for example, apartment buildings). An anti-freeze system is provided: when the gas boiler is turned off, the pump circulates the coolant, and when the temperature drops to -6 ° C, the burner automatically starts. The installed air pressure sensor allows you to optimize fuel consumption: it takes no more than 2.47 m3/hour to heat a room up to 240 m2 and meet the needs of hot water supply. The Coaxial chimney is not included in the standard kit (there are exceptions, but according to reviews, this should be clarified), to organize the forced removal of combustion products, it must be purchased separately.

4. Navien GA 17KN.

Floor double-circuit gas copper. Optimum in conditions of low gas pressure and water pressure, the performance when heated to 25 ° C reaches 9.8 l / min. The efficiency of this is 91%, due to the rational arrangement of steel heat exchangers, the fuel consumption is minimal - no more than 1.67 m3 / h with a thermal power of up to 1.7 kW. By analogy with the above-mentioned Navien gas heating boilers, this model provides reliable protection against freezing (it reacts to a sharp change in the temperature of the heated space) and voltage surges. A feature of Navien GA 17KN is a universal smoke exhaust system - the hole can be installed in the outer wall, it is not necessary to lead the pipe vertically. The remote control panel is Russified, it is possible to control the parameters of water heating.

5. Navien NCN 21KN.

A wall-mounted condensing gas boiler, due to the use of the heat of the outgoing combustion products, the efficiency of the device reaches 98-108%. This is an environmentally friendly heating technology, flue gases contain a minimum of hazardous substances compared to conventional two-circuit models with the same performance. The generated volume and speed of hot water supply is above average: 14 l / min when water is heated to 25 ° C, 8 - to 40. At the same time, Navien condensing boilers are not inferior in terms of safety to other varieties: there is a system of protection against freezing, power surges. Successful operation is allowed at low pressure of the energy and heat carrier in the supply lines.

Another feature of this Navien model is the ability to control power over a wide range: from 4.8 to 19.3 for the heating circuit, which leads to savings in gas consumption. For comparison: in the minimum mode, the gas boiler consumes 0.52 m3 / h, in the maximum mode - up to 2.09, while a rather significant heating area is covered - up to 190 m2. Savings are 30% or more, this is achieved both by modulating the heat output of the burner (from 20 to 100%), and thanks to climate control, which monitors temperature changes not only in the room, but also outside it. User reviews confirm the payback of this unit, maximum efficiency is observed when it is installed in low-temperature heating systems.

6.Navien Prime 13K.

Wall-mounted gas boiler with a remote return line sensor that monitors changes in weather conditions. The presence of a climate control system allows you to reduce fuel consumption and save heat exchanger resources. This characteristic for natural gas lies in the range of 0.75-1.4 m3 / h, liquefied - 0.63-1.16, the delivery of hot water reaches 13.8 l / min. The kit includes a remote control with a voice assistant, control is available to people with visual problems. The series is protected from voltage surges and is suitable for operation in domestic conditions.

Buyer opinions

“I chose the gas Navien Deluxe 24K as the main heating device for the cottage due to the impossibility of allocating a separate room for the boiler room, the wall model just fit. During the operation did not reveal any particular shortcomings or malfunctions. The disadvantages include dependence on the mains and specific noise - the greater the power, the stronger the rumble of the boiler.

Egor, Yekaterinburg.

“I decided to buy Navien Ace to replace a failed gas boiler, after wintering I noticed a slight decrease in gas consumption, convenient and accurate automation. During the year of operation, he stopped for no particular reason twice, after which he restarted manually, and did not understand what it was connected with. The chimney is noisy, but you can’t hear it behind the closed door, I didn’t find any obvious minuses or shortcomings. ”

Sergey Trofimov, Moscow region.

“I consider Navien boilers a good investment, this equipment from Korea is better suited for our conditions than European models, and it consumes gas more economically than Russian ones. Of course, they are dependent on electricity, but the same can be said about any heating circuit with a circulating pump, and the fans consume a little. Noise is called a generally recognized disadvantage, but they are located in a convenient place for the owner, the main thing is that the lighting is normal.

Dmitry, Novosibirsk.

“I installed the Prime 13K boiler from Navien at home, there are enough resources for efficient heating of all rooms and hot water for a family of three. I liked that the thermostat was included in the basic kit, I did not have to buy it separately. Malfunction signals are displayed, the control system is Russified, there are no problems with starting and maintenance.”

Denis, Moscow.

“I have been using a condensing double-circuit gas boiler of the Navien brand for heating and hot water needs for more than a year, during the operation I did not reveal any malfunctions. The cost of the model is one and a half to two times higher than the usual wall counterparts from Korea, but it is worth buying if you need a significant consumption of hot water. I advise you to connect the boiler through a stabilizer, in my area, for example, power surges exceed the 30% specified in the instructions.

Andrey, Rostov-on-Don.

Price

* the weight of the boilers is indicated without water.

It is well known that South Korea is a high-tech country that supplies the widest range of modern household appliances around the world, including 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 the Russian Federation for several years and managed to gain 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 trouble 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, as there are much fewer negative reviews, and the number of supporters of the South Korean manufacturer has grown significantly, primarily due to the reasonable 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. Only double-circuit boilers Navien are supplied to Russia and the CIS countries, both in 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. The main specifications of the 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

The line of wall-mounted boilers Navien with a closed combustion chamber 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 environmental conditions. 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 decoding of all codes is given at the end of the instruction manual, but not always in an 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:

• the circulation pump is out of order or disconnected from the power supply;
• 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.

If you choose a heating system for your home, then you should look at the Korean Navien Deluxe gas systems at a very attractive price. The Navien gas boiler is a reliable and durable device that is unpretentious in use. Only Korean materials are used in the manufacture. The Navien gas boiler has proven itself and is considered an ideal example of good quality and low price.

The country has developed service centers that service Navien double-circuit gas boilers, so with the slightest malfunction, you will always receive fast and qualified assistance. The Korean brand Navien is considered the leader in the manufacture of heating systems in Asia. The quality control mechanism, which is used at the plant where Navien double-circuit gas heating systems are manufactured, meets the most stringent quality standards.

Heating boiler Navien: sales leader

Navien gas boilers are leaders in the field of heating and water heating devices. Navien offers only high-tech solutions for any premises. In the heating systems market, you will always find a device that will serve you for a long time at a very low price. Navien wall mounted gas systems are designed for heating apartments and small private houses.

Deluxe brand Navien are household double-circuit boilers with open and closed combustion sections. They heat and heat water for domestic and technical purposes. All automation is in Russian, which allows not only to correctly read the instructions, but also save on heating and constantly maintain the optimum temperature in the room. Reliable and safe operation of the boiler performs its functions even with regular power failures. If the mains voltage fluctuates, the SMPS protective function is activated in the systems and then the mechanism works smoothly. That is why such wall-mounted double-circuit boilers have a long service life and protect the owners from breakdowns and further repairs.

Even with minimal gas pressure, you can use heating and hot water. A strong protection system prevents the owners from freezing. If the media temperature drops, the frost protection mechanism is automatically activated and the circulation pump starts to operate. The system provides reliable and uninterrupted circulation of the heat carrier. You can use hot water even at low pressure.

Wall-mounted double-circuit boiler Navien works great with low water pressure up to 0.1 bar, so it is widely used in residential areas with minimal water pressure in the water supply, as well as with constant power failures. The buyer receives a long service life of a wall-mounted double-circuit boiler, thanks to a heat exchanger made of reliable steel, which prevents rust and corrosion.

The Navien wall-mounted double-circuit boiler works on the basis of the APS mechanism, which guarantees stable combustion and reduces costs for gas. The mechanism controls the amount of gas that enters the burner, ensuring total combustion of the fuel, reducing its consumption. The fan with control of speed of rotation promotes safe burning. Therefore, the Navien wall-mounted double-circuit boiler can be used in apartment buildings. The convenient location of the APS mechanism prevents condensation.

Features of the Navien boiler design:

• circulation pump;
• universal separate heat exchanger;
• automatic control system;
• the ability to operate the boiler on natural and liquid gas;
• convenient choice of heating mode. You can choose any temperature that will be present in the house;
• timer function. You can set any time to stop the boiler. The Navien boiler will work for half an hour during the set time with a further shutdown. If you set the time to 4, then heating will be performed for four hours for half an hour;
• with one function can save fuel and, at the same time, to maintain the temperature at the moment when you are not at home.

Advantages and disadvantages of Navien gas systems

Navien gas boilers have a number of advantages, namely:

• frost protection device. When the room temperature drops, the system automatically activates the anti-freeze protection mechanism. If the water temperature drops to 10 degrees or below, circulation pump starts automatically, which ensures uninterrupted circulation of the heat carrier in the heating device. If the water temperature drops below 5 degrees, the burner automatically starts to work and the heat carrier warms up to 22 degrees;
• control of the turbocharging system. The turbocharging fan, which is located in the Navien Ice Turbo boilers under the combustion chamber, changes the speed of the counter. It moves from the APS air pressure mechanism. Thus, air enters the combustion chamber of the system in an amount proportional to the amount of gas supplied. Only such a device for the operation of the Navien Ice Turbo system with an installed fan under the combustion chamber and the use of the APS mechanism allows for total combustion of gas and minimal heat loss;
• stainless steel heat exchanger. Compared to copper, it is highly resistant to rust and corrosion. And this greatly extends the service life. Despite being resistant to rust, the stainless steel heat exchanger not widely used in boilers, since the heat conductivity is much less than that of a copper heat exchanger. And only in Navien Ice Turbo boilers can a modulated turbocharging system be used to increase the efficiency of the system;
• durable and safe operation of the system in case of constant failures. The SMPS mechanism installed in the microprocessor protects the system from power failures. Only the Navien boiler works without significant drops. So the service life of the Navien system is much longer than other devices;
• an amazing opportunity to use heating and hot water at low pressure;
• the device works great with low water pressure;
• amazing heating technology.

A portable system control distance with a built-in temperature mechanism helps not only save on gas consumption, but also significantly reduce heating costs. Therefore, your home will always have the optimum temperature.

The disadvantages of Navien gas boilers include a permanent connection to the network and, despite protection, the high sensitivity of sensors to voltage failures. To solve this problem, different stabilizers and batteries are used.

ATMO model

Navien ATMO gas boilers have a system for removing emerging vapors through a simple chimney. This design adapted to work in extreme conditions with strong changes in the voltage and pressure of the gas pipeline.

HSN model

This is Navien's most modern gas boiler, which has high performance through the use of steam temperatures. The heated condensate is collected in a heat exchanger, which heats the water flow. Thus, the costs of sources and energy carriers for heating the heat and water exchanger are reduced.

How to install a wall hung boiler?

So, you have purchased a gas boiler, installed a gas pipeline, installed heating, and now it remains to assemble everything into one system. Connecting any gas boiler is not a very easy task. And it's not even that such the system is a high-tech device, the problem is a little different - each device has its own connection method. Therefore, the installation of the boiler must be carried out by qualified specialists.

Before installing the boiler, if it does not have the necessary equipment, you must buy:

• temperature emergency mechanism;
• power device;
• thermometer;
• pressure mechanism;
• fuse.

Usually all boilers are equipped with such a complete set.

When installing heating systems with an open combustion chamber, you must have a separate room. Its area should be 4m2 or more, and the ceiling height should be 2.5 m. There should also be a ventilation system. When installing heating systems with a closed combustion chamber, such requirements do not apply. If you are installing a system need to have an outlet with automatic safety switch. It is important to connect the stabilizer. The boiler is grounded. If the wall on which the boiler is installed is not resistant to fire, then it must be sheathed with protective material. After getting holes between the pipe and the wall, they need to be sealed with cement mortar. Before connecting the thermoblock, check that there is no debris in the slots.

Connecting the heating system is a complex process that must be carried out by specialists. If you want to buy a Navien gas boiler, then everyone will be satisfied with its low cost, and even free installation will pleasantly surprise you.