How does the Navien boiler work. Wall-mounted gas boilers Navien - model range, pros and cons. Model range and their characteristics
Korean wall-mounted double-circuit gas boilers Navien today are 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 a good supply of hot water to a family of several people, a capacity of 14 l / min is quite enough.
Turbocharged boilers are represented by a wide power range from 13 to 40 kW. The number in the abbreviation indicates the thermal power of a particular wall-mounted boiler model.
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 the membrane tank and heat exchangers are produced 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 of Korean manufacturers is 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.
A very important point is the presence in the control unit of a built-in room temperature sensor. Usually, from other manufacturers, this sensor is considered as an additional option, and is purchased for a fee.
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 a stainless steel protective screen measuring 1000 by 600 mm for fire safety purposes. Also, for the correct installation of the 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 structure of the boiler. Watch a video review of the boiler.
Looking at the technical specifications, 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 a modern heating system in your private home.
now deserves special attention of the scrupulous consumer. The company was founded in 1978, and in 1988, KD Navien became the first company in Asia to design and manufacture a highly efficient, environmentally friendly condensing boiler. This quickly made the company the market leader in the condensing boiler. Today, KD Navien produces the world's best efficient, energy-saving and CO2-burning water heating products. Kyung Dong Navien Co., Ltd. manufactures gas boilers and water heaters in South Korea.
The company offers gas, oil and medium/large boilers as well as gas and electric water heaters. Navien provides zone management systems, offers wireless and automatic heating control products. Geothermal heat pumps. Fans for heat recovery.
Communication systems, including home and home automation products, and video intercoms. In addition, the company's engineers produce air conditioning systems, as well as micro-CHP products. The company exports its products to 30 countries around the world, including the United States, Canada, China, Russia, Kazakhstan, Greece, Poland, Spain, Great Britain, the Netherlands, Turkey and Brazil and so on.
Gas boiler Navien price.
The Korean brand "Navien" rapidly broke into the Russian market of heating equipment. Against the backdrop of expensive and constantly rising in price analogues of imported production, the Navien gas boiler has taken the best position in the price niche for the average wallet. Navien's specialization in the production of reliable and energy-efficient gas boilers allows us to offer the consumer high-quality and functional equipment, sometimes half the price of famous brands.
It is well known in Russia that South Korea is famous for talented engineers and developers who implement innovative technologies in our daily lives, and the Navien gas boiler is another confirmation of this. The price for a Navien deluxe 24k gas boiler on store shelves starts at 30 thousand rubles.
Gas boiler Navien design features:
So, we present to your attention the Navien wall-mounted gas boiler, in which a two-circuit system with a closed combustion chamber fits. These modifications are widely represented on the Russian market. Consider their differences from each other, device and technical characteristics. and also let's talk about what advantages Korean manufacturers promise us and try to find the shortcomings that Navien's engineers are silent about.
The first thing you should pay attention to is all the Navien gas boilers we are considering, fully adapted to Russian operating conditions. As we have already mentioned, a double-circuit system, in addition to its direct purpose - to serve as a source of heat in heating systems, allows you to provide the homeowner with hot water in sufficient quantities.
Structurally, the Navien gas boiler can be divided into two types: the first is turbocharged, that is, they are made with forced draft using a fan. The second is atmospheric with natural draft and removal of combustion products. Each model, and there are only four of them, is represented by a wide variety of capacities - up to seven modifications. This range allows you to find a suitable version of the boiler with the most suitable power. The most powerful wall-mounted gas boiler Navien from the manufacturer KyungDong Navien is able to heat a living area up to 400 m2.
Turbocharged wall-mounted boilers with closed combustion chamber represented by three models: Navien Smart Current, Prime Coaxial and Deluxe. The hallmark of the Korean enterprise in the domestic market is the device H Avien deluxe 24k. Instructions for the device in Russian, for which special thanks to the Korean comrades.
Navien deluxe 24k instructions for use
Technical characteristics of boilers Navien Smart Current Coaxial, Navien Prime Coaxial
Navien deluxe 24k specifications
If you are planning to equip a coaxial type chimney, then you should buy a Navien Delux coaxial gas boiler, respectively, which is equipped with a coaxial chimney. This design is a device when one pipe is inside another pipe. A pipe with a smaller diameter, which is located inside, ensures the removal of combustion products, the outer pipe serves to supply air necessary to maintain combustion in a closed chamber.
The diameter of the coaxial pipe for this boiler is 60 x 100 mm. In addition, the Deluxe coaxial boiler allows installation with a so-called separate chimney if the situation requires it. When installing a separate system, the exhaust of combustion products is attached to the central outlet. The pipe providing the air supply is attached to the right or left branch pipe, depending on the situation at the place where the chimney is arranged.
Navien deluxe 24k customer reviews are generally positive, and given the 24-month warranty and the low price per unit, the purchase is becoming more and more attractive.
Wall-mounted gas boiler from Navien with open combustion chamber represented by only one double-circuit boiler without turbocharging model: Navien Ace atmo.
Navien Ace atmo manual
Each such boiler has an “A” index in its name, which indicates that the device is atmospheric. And as we mentioned earlier, the removal of combustion products is carried out using natural draft through the chimney. The room where the boiler is installed should be more thoroughly ventilated.
In case of insufficient or low ventilation of the heated room, the combustion process may be disturbed. Firstly, the service life of the boiler is reduced, and secondly, with insufficient ventilation, carbon monoxide can accumulate in the room, which causes poisoning of the household.
Boiler Navien Device and main elements
The double-circuit gas boiler Navien in its arsenal contains all the modern components that are included in the standard set of the device. You can see them in more detail in the figure below: 
The heat exchanger is made of stainless steel. Compared with the traditional copper heat exchanger, this solution allowed to increase the corrosion resistance by 6 times, which led to an increase in the service life of the gas boiler. Despite the advantages of stainless steel in corrosion resistance, the thermal conductivity is still inferior compared to copper heat exchangers. The company's engineers have developed a special simulated turbocharging system.
This system works with a change in fan speed. The command to change the speed comes on a signal from the air pressure sensor. Changing the fan speed provides the required air to the full volume of the closed combustion chamber, so the engineers have increased the efficiency of the boiler without increasing the gas consumption. And the efficiency of a stainless steel heat exchanger is equal to the efficiency of boilers with a built-in copper heat exchanger.
The company's engineers have taken care of the technology that constantly adapts the operation of the boiler to home conditions. This is facilitated by a remote control panel. The company's engineers provided the remote control with a temperature sensor, which is already included in the total cost of the equipment.
Remote boiler control panel with built-in room temperature sensor
It is worth noting here that most competitors sell such an option as a temperature sensor separately. For better adaptation of the boiler, it is recommended to mount the remote control panel at a height of one and a half meters from the floor. A place must be chosen where there are no drafts and where direct sunlight does not fall.
The correct air temperature readings to which the sensor reacts and transmits to the electronic control board depend on the selected installation location of the remote control. The remote control itself is mounted with screws, and it is connected to the boiler with just two wires. On the remote control unit you can see all the data on the operation of the boiler, as well as possible malfunctions or errors. Temperature indicators of air, coolant, and water, as well as the exact time, all this is displayed on the display.
Before turning on the Navien gas boiler, it is worth checking the reliability of the electrical wiring, among other things, it is necessary to ground the boiler, which will serve as protection against possible electric shock.
The main elements of the lower part of the Navien boiler
- heating water filter
- drain plug
- safety valve
- make-up tap outlet
- heating water supply (inlet) 3/4 inch
- heating water return (outlet) 3/4 inch
- domestic hot water 1/2 inch
- cold domestic water supply 1/2 inch
- gas supply 3/4 in.
Recommendations for installing the boiler are quite standard: The easiest way to make a protective screen is from a sheet of metal. Stainless steel sheet is the best for this purpose. The sheet should be installed between the boiler and the wall. The manufacturer prudently includes a mounting plate in the delivery set.
Boiler Navien errors and malfunctions
So let's summarize the review of the Navien gas boiler
Advantages
- Any consumer can afford to buy a Navien gas boiler. The price-quality ratio clearly speaks in favor of the Navien Deluxe 24k boiler from a Korean manufacturer.
- An unexpected decision to install a heat exchanger made of a material such as stainless steel makes the boiler more durable.
- A remote control unit with a built-in temperature sensor adapts the operation of the boiler to constantly changing conditions, which makes staying indoors more comfortable.
- the presence of a protective chip against a power surge
- wide range of models and colors
- 100% supply of original inexpensive spare parts
Disadvantages:
According to some reviews, the noise level is slightly too high for the declared parameters. Perhaps, as one of the solutions - installing the boiler in a specially designated place.
The reverse side of Korean quality - original spare parts are suitable.
Some consumers are skeptical of Asian companies, preferring "European" quality.
Taking into account the technical characteristics of the Navien Deluxe 24k and the ratio of price and quality, it is probably possible to pay special attention to Korean-made boilers when choosing a gas boiler. It is really reliable and up-to-date for a high-grade .
The popularity of autonomous heating is growing not only among residents of private houses, but also among apartment owners. This trend is associated with the positive qualities of modern boilers, the convenience of their installation and operation.
Among the mass of the proposed range, the demand is high atmospheric gas boiler Navien, we will describe further the principles of operation, the causes of malfunctions and how to eliminate them.
The South Korean association Kyung Dong Navien has long been present in the market of heating and water heating equipment. The main products of the company are gas boilers.
Did you know?Initially, Navien's equipment ran exclusively on natural gas, but over time, models adapted to work on liquefied gas began to be developed.
The corporation firmly holds its leadership in the market due to the fact that each Navien gas boiler is adapted to work under various operating conditions (including in the post-Soviet territory), it has an acceptable price and good technical characteristics. Today the company offers:
- heating equipment for floor and wall mounting;
- models with open and closed combustion chamber;
- double-circuit and single-circuit boilers;
- a wide range of power options.
In terms of the correct choice, Navien boilers should be divided according to power, and therefore - according to the volume of the room. From here comes the division into floor and wall models.
Important! The lower the boiler power, the smaller the heated area.
What are the advantages of Navien Ace boilers
Navien Ace is a double-circuit version of a wall-mounted boiler. It is equipped with an open combustion chamber with a natural release of combustion products. The instructions for their operation speak eloquently about the advantages of Navien boilers - they work even under conditions in which competitors' equipment fails.
Did you know? To increase the service life of Navien boilers, they are made of stainless steel, since stainless steel has a fairly high thermal conductivity.Among the main advantages of Navien Ace boilers, it should be noted:
- universality;
- simplicity of control commands;
- compactness;
- high-quality anti-corrosion material was used in the production;
- fully electronic, Russified control system;
- compliance with high European standards (quality, comfort, safety);
- reliability and resistance to various conditions (voltage surges up to 30%);
- the ability to work in a frankly emergency situation (low pressure of gas and liquid coolant, low-quality gas, unstable pressure in the water supply system);
- economical fuel consumption;
- environmental friendliness (mostly carbon dioxide is emitted);
- acceptable price.
Complete set and principle of operation of the Navien Ace boiler
If we consider the Navien Ace wall-mounted atmospheric gas boiler from the technical side, then this model cannot be called simple. This is, in fact, a mini-boiler room, which includes:
- circulation pump;
- automation block;
- universal separate heat exchanger;
- expansion tank;
- various shut-off valves.
Since most models of wall-mounted boilers use a closed combustion chamber, they are equipped with turbocharging and a coaxial (pipe-in-pipe) chimney.
The power of Navien Ace boilers depends on the model and varies between 7-40 kW. True, there are no special differences in the principle of operation of the Navien boiler - it operates according to the classical scheme, which uses a combustion chamber, burner and heat exchanger.
Important! The APS mechanism, on the basis of which the double-circuit version of the Navien boiler operates, ensures uninterrupted combustion and gas savings. A speed-controlled fan ensures safe combustion.The most popular models of wall-mounted boilers Navien Ace
The most reliable Navien boilers, the operation of which can only be found positive reviews, are distinguished by an optimal price-quality ratio. They are divided into two categories:
- Ace ATMO. Traditional boiler with an open combustion chamber. Equipped with atmospheric removal of combustion products.
- Ace TURBO. Advanced boiler equipped with a turbocharged burner and a special SMPS control system that regulates the process of gas combustion.
What to look for when installing Navien Ace boilers
Since detailed Russified instructions are attached to the Navien boiler, there are no special problems with its installation and launch - you can mount the equipment yourself.
However, experts advise paying attention to the combustion products removal system. They can be discharged through a standard chimney or installed as a separate structure. If the indicated methods of exhaust gases are not suitable, a coaxial chimney can be installed.
The most common malfunctions and elimination of problems in the operation of the boiler
With its functionality and provision with electronics, there are certain disadvantages and malfunctions that can be encountered during the operation of the Navien Ace boiler.
Most often, users are faced with a problem when the unit stops working, and the electronics signal a critical error. This situation can be caused by various factors, including the sensitivity of the sensors. The most common mistakes:
- Smoke removal. Fault code "10" indicates problems with the removal of combustion products. Possible causes: turbine malfunction, pressure sensor tubes connected incorrectly, chimney clogged, nozzle too long.
If none of these causes are identified, and the Navien Ace boiler continues to signal an error, then normal gusts of wind may be the cause. You can solve this problem by redoing the chimney. As a quick response option, you can open the boiler body and disconnect the air supply hose. However, this measure is temporary.
For common mistakes on the Navien gas boiler, see this video:
Important! The manufacturer recommends installing boilers with the chimney exit on the leeward side.
- Flame sensor failure. Fault code "03" may indicate poor gas quality. The problem can only be solved by elimination. First of all, the cleanliness of the gas supply nozzles is checked. If they are in order, you need to choose the optimal position of the controller electrode (it must be in the hot phase of the flame).
- Equipment overheating. Fault code "01". A possible cause is a blockage in the heating system, a malfunction of the circulation pump, or a decrease in flow. Ways to solve the problem: check the system and filter for the presence of air, check the health of the pump and the resistance of the coil for a short circuit, check the impeller in the circulation pump.
- Navien gas boiler is working, There is heating but no hot water. Error code "02". There is a jump in water temperature on the remote control (it rises sharply to a maximum and instantly drops). Perhaps there is a blockage in the hot water system. The reasons may be: lack of pressure in the water supply system, airiness of the system, the circulation pump cannot gain momentum, the distribution valve is closed, or the flow controller does not work. To eliminate this malfunction, first of all, it is necessary to adjust the pressure, bleed the air in the system, check the resistance of the pump coil and the impeller for damage, open the boiler distribution valve, disassemble the regulator housing and clean the box.
In addition, when hot water is turned on, the Navien boiler may hum or make an incomprehensible noise. At the same time, there is no error information on the display and the pressure is normal. As a rule, this is due to clogging of the heat exchanger. To fix the problem, you can clean the heat exchanger or replace it.
Did you know? It is best to choose boilers that are equipped with smooth adjustment - this will allow you to change performance depending on the air temperature.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.
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. The increased demand for a relatively young brand is justified by the low cost, thought out to the smallest detail design, functionality and the possibility of using it to heat apartments, houses, offices and warehouses.
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 standing 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% | |||||
The correct setting of Navien gas water heaters, which should be carried out only by specialists, will allow to put into practice the initially laid down efficiency of the devices.
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 of 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 ensures a more economical gas consumption.
- 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.
User opinions
“I have been using Navien 24 ATMO since 2009. It takes up little space, stable hot water supply. The temperature in the rooms maintains a constant regardless of the weather outside the window, the price is reasonable. It makes a lot of noise - when ignited, the outer lid slams. ”
Daniil Rudenko, Samara.
“Before buying, I carefully studied the description of the Navien 16K wall-mounted boiler and made a choice in the direction of this particular model. It is convenient to control the temperature of the heating circuit and hot water supply from the remote control, the modes are supported automatically. The system of controllers monitors the presence of coolant and, if necessary, performs pumping.»
Maxim Korzhik, Penza.
“After much thought, I decided to buy a GST-40K floor-standing boiler from Navien - the installation was simple, but I called specialists to guarantee it. Quiet operation, easy operation. Worked for two winters - no complaints. The house is warm and there is hot water. The only drawback is that it is volatile, I had to install an additional IPB. ”
Igor Pankov, Moscow.
According to reviews, Navien boilers are a reliable and budget option for heating equipment. Competent installation and commissioning with optimization of the main parameters allow using all the functionality of heat generators. The main disadvantages are increased noise when the burner is turned on and the volatility of the boiler.
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As you know, gas heating equipment is the most profitable and safe option for heating premises for various purposes. The same applies to the products of the famous Korean concern Navien. A gas boiler of this brand will not only serve you for a long time (at least 15 years), but will also be the most profitable investment for heating your home, office or store.
Equipment Features
Among the features of Navien wall-mounted gas heating boilers, the following are worth noting in the first place:
- minimal emissions of harmful substances into the atmosphere. This is achieved through high-quality assembly and the use of the most modern technologies, and for the Ace Coaxial series - also with the help of a closed combustion chamber design, which also increases the efficiency of Navien gas boilers (efficiency > 92%);
- a high level of automation of all processes of operation of Navien gas boilers. This includes automation that regulates the parameters of the coolant depending on the external microclimate, and protective systems that prevent the occurrence of emergencies (freezing, overheating, etc.);
- relatively low cost of the Navien Ace boiler itself, as well as its operation;
- the minimum required pressure parameters in gas and water supply systems, which is especially important in the conditions of operation of the Korean gas boiler Navien in our country.
Features of choosing a boiler
Before deciding which wall-mounted Navien gas boiler you need, you should pay attention to the following factors:
- the amount of hot water that you need, as well as the area of \u200b\u200bthe rooms that require heating. The performance line of the Navien Ace series boilers includes units with capacities from 13 to 30 kW. This allows you to heat, respectively, 130-300 "squares" (although the minimum dimensions of an efficiently heated room for units are approximately 65 square meters) and provide hot water with a flow rate of 8-23 l / min;
- possibility of installation in a heated room or a chimney building. If such a chimney already exists or its manufacture is not difficult, you can choose the less expensive Navien Ice models of the Atmo series. Difficulties with the device (lack of space, high ceilings, etc.) automatically make it possible only to use Navien Ace gas boilers of the Coaxial type;
- room color scheme. If it matters to you, boilers can be purchased in gold, silver, or plain white.
Purchase of appliances
It will be most profitable to buy all this equipment in the TeplovodService company, which is not only the official (and, therefore, giving a full guarantee) supplier of the brand, but also provides its customers with the highest quality service and the lowest prices for all the equipment presented.