What could be nicer than the hug of a loved one? Once in them, we leave all worries and problems behind. The peace and warmth that they emit calms and gives strength to fight on. All this is impossible without home comfort, where the whole family realizes its importance and members can express their gratitude to each other. Especially in winter I want to come to warm home. But this is impossible without a heating system. The latter must be not only reliable, but also cheap to maintain. Also, the price of basic modules should not skyrocket.
The central component for heating systems is a gas boiler. In regular or online stores you can find hundreds, or even thousands of offers. Models of domestic and foreign production are presented. Due to rising prices, the latter are becoming increasingly difficult to buy. But there is an option that is ideal in almost all criteria - this is a double-circuit gas boiler "Navien". He will become a hard worker and a reliable assistant.
Advantages and disadvantages
A balanced assessment of any matter is greatly appreciated. It is this that allows you to achieve the required result and incur a minimum amount of costs. This approach is also relevant when choosing Navien double-circuit gas boilers. This brand positions its gas boilers as excellent value for money. From strengths the following can be distinguished:
There are significantly fewer disadvantages of such gas boilers and for many they will be insignificant:
- the price is higher than that of domestic analogues;
- imported spare parts;
- the need for regular maintenance.
In most situations, it is better to overpay than to subsequently suffer from unstable functioning and other shortcomings. The required components will be delivered on time through authorized Navien centers, and without regular maintenance, any device will sooner or later go to a landfill.
The lineup
Navien double-circuit gas boilers are presented in several lines. Each of them has its own specific features that may be required for a particular home. It will be useful to consider each of them separately.
Atmospheric line “Navien” Ace ATMO
Double-circuit boilers of this model range were developed for the most unstable conditions, so they are as unpretentious as possible. The compartment where gas combustion occurs is open. Therefore, when installing such a heating boiler, you will have to take care of a properly designed chimney that will have the required draft. Gas appliances in this subsection are ready to work even at a gas pressure of 4 mbar. IN winter period This can be a huge help in terms of time. The fact is that in houses where a large number of gas boilers are installed, the supply rate can drop sharply when the temperature outside creeps down. But with such a boiler from Navien, you can forget about troubles.
If more than one misfortune comes and, along with the blue fuel supply, the water pressure also drops, then for Navien wall-mounted gas appliances it’s all right. The above-mentioned voltage stabilization system perfectly tolerates instability of the power supply network. In the event of any unforeseen situation, the wall-mounted boiler will conduct an independent analysis and display an error code on the control panel. Some can easily be eliminated on their own. Are you planning to leave home and have no one to keep you in check? Don’t worry, the frost protection in wall-mounted gas boilers will do everything for you.
It is easy to adjust the temperature of the Navien boiler in the heating system within the range from 40º to 80º Celsius. Even the most heat-loving people will be satisfied. For hot water supply, this figure ranges from 30º to 60º. The liquid transfer pump in a double-circuit wall-mounted boiler has an automatic air sensor that will immediately reset it.
Note! Navien boilers of this type easily operate from both natural methane and liquefied gas, so even in the absence of a centralized supply it will be possible to power it. To make the transition, just use a special kit. Boiler models available gas power which starts from 13 kW, and maximum value— 24 kW.
Line with turbine “Navien” Deluxe Coaxial
Double-circuit wall-mounted boilers in this line are in many ways similar to the previous ones. They also tolerate various changes in gas and water lines well. These double-circuit Navien boilers also cope well with power surges thanks to the SMPS chip. Such boilers are equipped with a remote control with a sensor for better control. But they also have their own certain differences.
The combustion chamber in these wall-mounted boilers is closed, so a different system is used to supply air and remove waste. A special turbine is mounted directly under a specialized compartment double-circuit boiler. It forcibly pumps the volume required for high efficiency and complete combustion of fuel. This boiler system is modulating. Sensor atmospheric pressure monitors its value and controls the fan speed. The lower the pressure, the higher the rotation of the turbine of a double-circuit boiler, so that there is no loss of power. There is no need for massive mines to release the waste. It is enough to get a special coaxial pipe for these wall mounted boilers.
Primary and secondary heat exchanger and double-circuit gas boilers "Navien" are made of of stainless steel. Their service life is 6 times longer than similar copper ones. They are less susceptible to corrosion even from hard water. Some may worry that due to the choice of such a material in the production of Navien boilers, their performance will be reduced. But this is compensated for by an intelligent supercharging system.
It is important to know! Representatives of Deluxe Coaxial double-circuit boilers received the highest productivity up to 30 kW. If this turns out to be not enough, then you will need to look towards the Ace TURBO Korea subsection. They have a slightly modified system for working with supply and output atmospheric air, but they will allow you to heat an area of 350 to 400 m2.
Boilers with increased efficiency "Navien" NCN
How do you like the proposal to reduce heating costs by 30%? This became possible with double-circuit boilers "Navien" NCN they use unique technology which allows for more efficient use of available resources. This line combines the advantages of the previous three. There are all protection and control systems. Additionally, the boiler has a large backlit display that displays the current status. But the whole point is to increase efficiency to 108%. How was this achieved?
There are several factors that contribute to this. In a double-circuit boiler, there is no separate supply of gas first and then air, which is required for its combustion. There is a pre-mixing chamber in front of the burner in the Navien double-circuit boiler, so the substances go there. Next, the mixture is transferred through the turbocharged pressurization unit of the Navien wall-mounted boiler and ignited. But the gases exhausted in a double-circuit boiler are not emitted. They contain a large amount of steam, which is easy to reuse. It enters the condensation unit.
The latter is another heat exchanger, to which a return current is supplied from common system. Water passing through this component of a double-circuit boiler partially increases its temperature. Therefore, it enters the main burner of a wall-mounted dual-circuit appliance with more high temperature, which means it requires less energy to bring it to the state specified on the control panel. This is how savings are achieved in double-circuit products of this line.
Important! Navien NCN boilers have another nice bonus. These double-circuit wall-mounted boilers are able to adjust their operating parameters depending on the weather. Those. if the temperature outside drops another 10º, then you won’t need to go and turn up the thermostat to a higher value, everything in the boiler happens automatically. To do this, you just need to mount an additional sensor, which is installed on the street.
Instead of a conclusion
Now you have complete information about Navien wall-mounted gas boilers, so you can certainly do right choice. Everyone decides for themselves how to assemble and install a heating system. Some people can do most of the work themselves. You can also independently prepare a site for a double-circuit wall-mounted boiler. But its connection is made only by specialists who can correctly put the dual-circuit unit into operation and sign all documents. Do not skimp on quality, and as a result, on your health, by choosing low-quality double-circuit boilers. You definitely won’t get it back for the remaining amount.
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 an extensive range of models, not to mention several dozen brands on the heating market.
The Korean-made Navien gas boiler simplifies this task - each line features the own developments of Navien engineers, optimized for power, energy consumption and ease of operation. Why, among all the variety, buyers prefer this particular heating equipment is 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. They do not produce OEM products here - modified early samples to increase sales. Each piece of equipment is worked out down to the nuances, which allows us to create equipment that is ideal for autonomous heating private houses, apartments and industrial enterprises.
Wall gas Navien boilers
Key advantages over products from other brands include:
- intelligent remote control via iOS or Android systems - SMART-TOK boiler line;
- modulated gas burners, responsible for the silent operation of the unit, a gradual change in temperature in a comfortable mode for humans 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 Russian conditions operation - 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 potential risks and proposed a completely new vision for gas equipment. It has become not only convenient, but also completely safe.
Studying real reviews for Navien gas boilers, it becomes clear that buyers have already appreciated the stability of the burners, the quality and insulation of the heat exchangers, and a very long period of trouble-free operation. Even according to estimates from service center specialists, Navien equipment breaks down 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 coaxial system chimney;
- atmospheric - with open camera combustion, where flue gases are discharged outside according to the principle of natural draft;
- condensation - direct the heat released during the condensation of water vapor to the coolant, thereby saving fuel consumption by 20%.
By number of circuits
- single-circuit - intended only for heating the room;
- double-circuit - for heating and providing hot water supply.
By placement method
- wall-mounted - mounted on the wall, compact sizes, do not require a separate or closed room;
- floor-mounted - 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, these products are in greatest 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 equipment power is 24 kW, which is designed to heat 200-220 sq.m. Maximum fuel consumption 2.47 m3/h. Volume hot water- 13.4 l/min. There are two heat exchangers:
- copper;
- made of heat-resistant steel.
There is only one burner included; if necessary, purchase a replacement one and switch the boiler to bottled (liquefied) gas.
The complex includes:
- expansion tank;
- remote control with 2 thermostats.
Price 25599 rub. In remote regions it reaches 27,000 rubles.
Wall-mounted gas boiler Navien DELUXE 24K
Deluxe 24K White (Korea Type)
Convection attachments With closed camera combustion. At the same price as 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. Hot water supply capacity - 13.7 l/hour.
When choosing boilers, managers advise sticking to the formula of 1 kW of power for every 10 square meters of room. But this - ideal conditions operation, when the house is well insulated (walls, floor and ceiling), insulated metal doors, metal-plastic windows, bimetallic radiators. We recommend taking 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.
Cost 24999-27999 rub.
Navien Smart Current 24K
Among all coaxial wall-mounted boilers, this one is the best. The “stuffing” includes:
- closed combustion chamber with copper heat exchanger;
- modulating gas burner, easy to switch for working with liquefied gas;
- electronic system control with self-diagnosis of problems - 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 sensors and room temperature to stabilize work;
- Intelligent remote control via iOS or Android systems.
If necessary, you can control it via voice. The operating time is limited by a timer.
The power is adjustable 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 supply even when the network voltage changes.
Cost - 45,500 rubles.
VIDEO: Simple solution main problem wall-mounted gas boilers
Studying the reviews of owners and specialists, it is clear that in general this is enough reliable equipment, which extremely rarely fails. But problems arise here too, and often this is due to errors or operating features.
In some cases, you need to immediately contact the service center, especially since the Navien double-circuit wall-mounted gas boiler is repaired under warranty only if there has been no third-party intervention.
Error code 01
This error means a decrease in pressure. The reasons may be a failure of the circulation pump or the formation of a plug (clogging).
Things to check:
- a filter so that there are no air pockets - you can bleed it on the radiators;
- operation of the circulation pump;
- coil resistance;
- operation and absence of damage to the pump impeller.
After the end of the warranty period, all problems must be checked and repaired by a qualified technician. A gas boiler does not allow amateurism, so there is no need to take risks.
Error code 02
This means the appearance of air pockets in the system, a decrease in water pressure, and damage to the pump impeller. In addition to the error code, which is displayed on the display or plateau, the indicators are:
- lack of hot water from the tap - first it can be warm, then generally cold, since the flow force is not enough for the burner to operate;
- cold water at maximum temperature on the remote control;
- There is no hot water supply, but the heating works properly.
What do we have to do:
- Release 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 faulty 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 chemical compounds.
- Check that the sensors are connected correctly.
The appearance of noise in the operation of the boiler
It is very rare, but it occurs when a Navien wall-mounted gas boiler begins to make a distinct noise when supplying hot water, but does not display an error. The reasons may be poor-quality coolant or increased water pressure. Usually, we're talking about This means that the heat exchanger is clogged, so it must be removed and thoroughly cleaned.
When the equipment has been in use 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 storage tank and it shows that the heat exchanger is clogged with low-quality coolant. In most cases, this error appears on original equipment that is not adapted to our conditions. From official dealers you can order an adapted gas boiler that 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 just the Korean Navien, can encounter this. Another thing is that the latter rarely fails, which is what Russian users appreciate.
VIDEO: Commissioning the NAVIEN gas boiler
If you are choosing a heating system for your home, then you should take a closer 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 easy to use. Only Korean materials are used in production. The Navien gas boiler has proven itself and is considered an ideal example good quality and low price.
The country has developed service centers, which service Navien double-circuit gas boilers, so if there is the slightest malfunction you will always receive fast and qualified help. The Korean brand Navien is considered a leader in the manufacture heating systems in Asian countries. The quality control mechanism used in the factory where Navien double-circuit gas heating systems are manufactured meets the most stringent quality standards.
Heating boiler Navien: bestseller
Navien gas boilers are leaders in the field of heating and water heating devices. The Navien company offers only high-tech solutions for any premises. On 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 intended for heating apartments and small private houses.
Navien Deluxe brand 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 you not only to read the instructions correctly, but also to save on heating and constantly maintain the optimal temperature in the room. Reliable and safe work The boiler performs its functions even with regular voltage failures. If the network voltage fluctuates, the systems are triggered protective function SMPS and then the mechanism works smoothly. That is why such wall-mounted double-circuit boilers have a long service life and protect owners from breakdowns and further repairs.
Even with minimal gas pressure you can use heating and hot water. A durable protection system prevents owners from freezing. If the media temperature drops, the frost protection mechanism is automatically activated and the circulation pump starts running. The system provides reliable and uninterrupted circulation of the coolant. 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 in cases of 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 operates on the basis of the APS mechanism, which guarantees stable combustion and reduces costs for gas The mechanism controls the amount of gas that penetrates the burner, ensuring total combustion of fuel, reducing its consumption. A fan with controlled rotation speed promotes safe combustion. Therefore, the Navien wall-mounted double-circuit boiler can be used in apartment buildings. Convenient location 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 for stopping the boiler operation. The Navien boiler will work for half an hour during the set time with further shutdown. If you set the time to 4, then heating will be carried out for four hours, half an hour at a time;
- with one function you you can save fuel consumption and, at the same time, maintain the temperature when you are not at home.
Advantages and disadvantages of Navien gas systems
Navien gas boilers have a number of advantages, namely:
- anti-freeze protection device. When the room temperature drops, the system automatically activates an anti-freeze protection mechanism. If the water temperature drops to 10 degrees or below, The circulation pump is automatically activated, which ensures uninterrupted circulation of the coolant in the heating device. If the water temperature drops below 5 degrees, the burner automatically starts working and the coolant warms up to 22 degrees;
- control of the turbocharging system. The turbocharging fan, which is located in Navien Ice Turbo boilers under the combustion chamber, changes the speed of movement according to the counter. It is driven by an APS air pressure mechanism. Thus, air enters the combustion chamber of the system in an amount proportional to the amount of incoming gas. Only such a device works Navien systems Ice Turbo with installed fan under the combustion chamber and the use of the APS mechanism allows for total combustion of gas and minimal heat loss;
- heat exchanger made of stainless steel. Compared to copper, it is highly resistant to rust and corrosion. And this greatly extends the service life. Although rust resistant, 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 the event of constant failures. The SMPS mechanism installed in the microprocessor protects the system from power failures. Only the Navien boiler works without significant differences. That's why The service life of the Navien system is much longer than other devices;
- amazing ability to use heating and hot water at low pressure;
- the device works great at 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 optimal temperature.
The disadvantages of Navien gas boilers include a constant connection to the network and, despite the protection, the high sensitivity of the sensors to voltage failures. To solve this problem, different stabilizers and batteries are used.
Model ATMO
Navien ATMO gas boilers have a system for removing generated vapors through a simple chimney. This the design is adapted to work in extreme conditions with strong changes in the voltage and pressure of the gas pipeline.
NSN model
This is the most modern Navien gas boiler, which has high performance using 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-mounted boiler?
So, you purchased a gas boiler, installed a gas line, installed the heating system, and now all that remains is to assemble everything into one system. Connecting any gas boiler is not an easy task. And it’s not even that it’s like this 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 purchase:
- temperature emergency mechanism;
- power device;
- thermometer;
- pressure mechanism;
- fuse.
Usually all boilers are equipped with this configuration.
When installing heating systems with an open combustion chamber, you need to have a separate room. Its area should be 4 m2 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 the system, need to have an outlet with automatic emergency shutdown sensor. 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 needs to be sheathed with protective material. After getting holes between the pipe and the wall, you need to seal them cement mortar. Before connecting the thermoblock, check that there is no debris in the cracks.
Connecting a heating system is a complex process that must be performed by specialists. If you want to buy a Navien gas boiler, then everyone will be happy with its low cost, and they will also be pleasantly surprised by the free installation.
Korean wall-mounted double-circuit gas Navien boilers today are the most the best option when purchasing, given the sharp rise in price of all imported heating equipment. Of course, the increase in the price of gas boilers affected all manufacturers, but you must admit, it’s one thing to pay 30-35 thousand rubles for a boiler, and another thing to buy it for 50-60 thousand.
Is it worth overpaying for essentially 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 Navien boiler models presented on the Russian market, their differences, design and technical characteristics, as well as the advantages and disadvantages of boilers of this brand.
Features of Navien gas boiler models
On the Russian market, the company sells double-circuit wall-mounted gas boilers, both with forced draft (turbocharged) and natural (atmospheric). They are designed for home heating with total area from 30 to 400 m2, depending on its power.
All models are dual-circuit, which makes it possible to use them to heat household running water for household needs. They can operate on natural and liquefied gas.
Gas boilers Navien Prime and Navien Deluxe
The productivity of hot water also depends on the power of the gas boiler. The higher its power, the more water he will give it to you. Boilers with a power 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 to provide a good supply of hot water to a family of several people, a capacity of 14 l/min is sufficient.
Turbocharged boilers are available in a wide power range from 13 to 40 kW. The number in the abbreviation indicates thermal power specific model of wall-mounted 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.
Navien Deluxe Coaxial boilers - Technical characteristics
Table of technical characteristics of Navien Deluxe Coaxial boilers
In addition, turbocharged (with a closed combustion chamber) double-circuit gas boilers from a Korean manufacturer differ in the type of exhaust of combustion products and air supply.
They come in two types:
— with a coaxial chimney;
- with a separate chimney.
Navien boilers with coaxial chimney are marked 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 chimney of the “pipe-in-pipe” type. Through the outer pipe there is an influx of air into the boiler from the street, and through the inner pipe there is an emission of combustion products. The diameter of these pipes is 60/100 mm, as indicated in the instructions.
For those situations where, according to the project, installation of a gas boiler is impossible, practical and cunning Koreans have come up with a boiler with the ability to install the so-called separate chimney.
This type of turbo boiler is already equipped with two connection pipes: the first pipe, which emits combustion products, and the second, for air intake. Instead of the second pipe, you can also use aluminum corrugation, it is cheaper. The diameter of the pipes 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 this is exactly the type of double-circuit gas boiler made in Korea. See the photo below.
When choosing a boiler, also keep in mind that boilers with a Korean version of the chimney are available with maximum power up to 40 kW inclusive, whereas with a coaxial pipe - only up to 30 kW.
Navien Deluxe 24K boiler with channel separator
Navien range of gas boilers with open combustion chamber presented in models with a power of 13, 16, 20 and 24 kW for heating rooms from 30 to 240 m2. They are marked Navien Ace 13-24 A.
The symbol “A” tells us that this device is naturally aspirated, and the numbers indicate its power. Boilers of this type do not have a fan (turbine), and combustion products are removed by natural draft.
You can buy an atmospheric boiler if your house already has a chimney, for example, from asbestos cement pipes, sandwich pipes or brick pipes. You will just need to purchase separate steel pipes (preferably stainless steel) and run them into an existing chimney.
The diameter of the pipe on the boiler is 130 mm. This is important to remember, because you cannot narrow the chimney.
And, if, for example, you have an asbestos pipe installed with an internal diameter of 100 mm, then it will have to be replaced with pipes larger diameter. Otherwise, the boiler will not work correctly and will quickly fail.
Installation of double-circuit gas boilers of the Navien brand
Like most modern double-circuit wall-mounted gas boilers, South Korean-made boilers are equipped with:
Construction 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);
— three-way valve for switching the operation of circuits;
— turbine (for versions with forced draft).
Design features of Navien double-circuit boilers
1. Navien boilers have two separate heat exchangers: one for heating, the second for running domestic water. 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 bithermal copper heat exchanger to heat both circuits. Stainless steel itself guarantees long term gas boiler service.
2. Another important point is that the company produces all the boiler elements itself. Both the pump, the membrane tank and heat exchangers are produced in South Korea. Unlike, say, many others, which often have parts from different manufacturers installed.
3. The electronic board of the Navien boiler has a special built-in chip to protect against power surges. The same protection for the “brains” of the boiler is provided only on wall-mounted gas boilers made in Germany, but heating equipment of this brand belongs to a different price category.
But, despite this chip, experts still recommend buying one, taking into account our Russian realities, when the range of voltage surges in the power grid can be quite decent.
4. And finally, the most noticeable distinctive feature Korean manufacturers are remote boiler control unit Navien. This is a special “box” that has a digital display and buttons for controlling the operation of the boiler.
Navien boiler control unit
The display displays information about any malfunction or error during the operation of this equipment, the set temperature of water, coolant, air, as well as time. Using the buttons, the operating parameters are manually set: mode, temperature, turning the boiler on and off.
Very important point- this is the presence in the control unit of a built-in room temperature sensor. Typically, from other manufacturers this sensor is considered an additional option and is purchased for an additional fee.
For the “Koreans”, it comes complete with a boiler. And you don’t even need to buy wires: both the boiler and the unit already have them. The difference is the 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.
Connecting and installing 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 the fittings is from right to left: gas connection, running water inlet and outlet, coolant inlet and outlet.
The diameter of the fittings for service water is 1/2 inch, gas and coolant is 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 protective stainless steel screen measuring 1000 by 600 mm for fire safety purposes. Also for correct installation The boiler on the wall includes a special mounting strip.
Connecting the Navien Deluxe Coaxial gas boiler
Advantages of Navien boilers:
— good price-quality ratio;
— two heat exchangers made of stainless steel;
— presence of a remote control unit with a built-in air temperature sensor;
— presence of a protective chip against power surges;
- wide the lineup and color scheme;
- cheap spare parts.
Disadvantages of Navien gas boilers:
— noise during operation;
— only original spare parts are suitable;
- Asian brand.
So, we looked at the range of Korean wall-mounted double-circuit gas Navien boilers, their differences, dismantled the external and internal organization boiler Let's watch a video review of the boiler.
Looking at the technical characteristics, as well as reviews from owners and specialists, Korean-made Navien boilers are perhaps the best today when choosing heating equipment, if we take into account such parameters as price and quality. Overall, this is a very worthy and inexpensive device for the modern heating system of your private home.
Gas wall-mounted boiler NAVIEN
When a consumer is faced with the question of choosing a gas boiler for heating, they have to take into account a large number of criteria to ensure its efficient and economical operation. In this regard, domestic and foreign units should be divided. Unfortunately, not all “foreigners” can withstand the difficult Russian operating conditions - low quality coolant, changes in gas and water pressure, periodic power outages. True, many foreign analogues today have already been adapted to Russian conditions. For example, the well-known South Korean model line “Navien Ace” with instructions that stipulate that these boilers can be used in Russia.
The Navien Ace brand is wall option double-circuit boiler. This model refers to Navien equipment with an open combustion chamber and natural removal of combustion products. What is included in the boiler design?
Boiler equipment
The design of the unit includes:
- Two heat exchangers are made of stainless steel, which guarantees their long and reliable operation.
- Remote display of the control unit, which is completely Russified. For the Russian consumer this is a very important condition.
- Built-in circulation pump.
- Expansion tank.
- Safety valve.
- Air vent operating in automatic mode.
- A bypass valve, which is also adjusted automatically.
- Traction sensor.
- Electric current stabilizer.
- Remote control with remote control, which is convenient in terms of maintenance.
The South Korean boiler navien ace is fully equipped with Japanese automation. In this case, the manufacturer provides a warranty period of 2 years. This is a fairly compact device with excellent technical characteristics. The operating instructions for Navien boilers make it easy to understand all the intricacies of setting up the device, modes and temperature ranges.
Classification
Navien Ace gas boilers are divided into two categories:
- Ace ATMO.
- Ace TURBO.
The first unit is a simple and traditional boiler with an open combustion chamber, which uses atmospheric exhaust of combustion products. The second is more advanced and has a turbocharged burner. This allows you to efficiently supply gas and burn it when the supply is unstable, which is associated with pressure surges. In addition, the second option is equipped special system SMPS control, which is based on highly sensitive chips. They are responsible for monitoring and regulating gas combustion processes. In all other respects, both options are no different from each other.
Both models can be classified as universal equipment. Adapted to difficult operating conditions, they are considered one of the most economical heating devices, which are present on the Russian market today. An important component of the design is the remote control. This is very convenient when you can set modes and indicators from a distance, quickly making adjustments.
But what’s surprising is that Navien gas boilers can operate not only in automatic mode, but also in manual mode. This is especially convenient when the temperature outside the window changes sharply. Manual installation allows you to more accurately set parameters and indicators, which eliminates the smallest errors during the operation of heating equipment.
Navien ace gas boilers can be called universal units. They operate on natural gas or liquefied bottled gas. To switch from one type of gas to another, you only need to change the burner. No other changes are required.
What to pay attention to during installation?
Steel gas boiler Navien Ace Since instructions are included with the equipment, there are no problems with installing and connecting the device. Doing it yourself is not a problem. Even a non-professional can understand the instructions. Moreover, it is written in Russian.
The only thing that experts ask you to pay attention to is the method of removing carbon monoxide. They can be discharged through a regular atmospheric chimney connected to the smoke exhaust system of the house or installed as a separate structure. But if you are not satisfied with any option, you can make a coaxial chimney. Its installation is several times simpler. But keep in mind that coaxial structures are used only when the heated area of the house does not exceed 110 m². They can be installed with boilers whose power does not exceed 11 kW.
Conclusion on the topic
Gas boilers "Navien Ace" are high-quality heating technology with excellent technical and performance characteristics. Adapted to the difficult Russian operating conditions, they have firmly taken one of the leading positions in the Russian heating equipment market. Their popularity is not falling, which means there is a high probability that other models will always be in demand.