Gas heating boiler navien. Gas boiler "Navien": reviews. Navien gas boiler: price and specifications. Gas boiler Navien design features

To this day, an autonomous heating system that runs on gas remains popular. Residents of country houses and plots use such devices very actively. This can be said about the owners of apartments in multi-storey buildings. This is due to the fact that modern gas heating devices have many positive features, they are easy to use and install, as well as during operation. Having visited the store, you can get acquainted with a large assortment of similar products, but the Navien boiler is the most popular today. Malfunctions can occur during its operation, as is the case with any other equipment. However, you can try to solve the problems yourself by using the error code that is indicated on the interactive panel.

Most common problems

The Navien boiler, whose malfunctions are able to be eliminated by almost every user, sometimes breaks down during operation, like any other equipment. This is due to the fact that low quality coolant can be used. In order for the consumer to be able to determine the cause and make a decision, Navien brand boilers issue an error code. The following are examples of problems that occur most frequently:

• overheat;
• no flame signal;
• open circuit in the temperature sensor;
• chain damage;
• problems in the operation of the fan;
• short circuit of the flow sensor;
• violation of the system;
• control board failure.

You may experience hardware overheating issues as well as false flame warnings.

Troubleshooting

If you purchased the Navien boiler, malfunctions may occur during its operation, then you, like every user, need to know the main error codes and troubleshooting options. Some owners immediately turn to the service workshop and do the right thing, since only in this case, when repairing the device, the equipment warranty will apply.

If you saw error 01 on the display, then you should know that this malfunction is the most common. It is expressed in a decrease in the flow of heating or blockage. The same error code also occurs when the circulation pump fails.

You can solve this problem by performing the following manipulations. It is important to check the filter in the heating system for air pockets, if necessary, they should be bled. The master needs to make sure that the pump is working properly, and the coil resistance is closed. It is necessary to take care of the performance of the impeller, it should not be damaged, and you can find it in the circulation pump.

Error number 02

The Navien boiler, the malfunctions of which are displayed on the display, may encounter an error, which is indicated by the numbers 02. If the two-circuit equipment issues such a code, then warm water may flow from the hot tap for several seconds, then it is cold, and the water temperature rises on the remote control to maximum, then this parameter drops sharply. In this case, everything can be normal with heating, and sometimes the causes of the error are a lack of water or air in the system.

In some cases, you may notice that it works, but does not have the ability to gain the desired speed. Sometimes, with error 02, users note that the impeller is mechanically damaged. Sometimes the flow sensor in the coolant system does not work, and the heating distribution valve is closed.

Error 02 troubleshooting options

The Navien gas boiler, whose malfunctions can be an unpleasant surprise for the user, sometimes gives error 02. At the same time, the master should adjust the pressure, rid the system of excess air, and also analyze the resistance of the pump coil. The impeller should be checked for damage as in the case above. The resistance of the flow sensor must be checked for a short circuit, open the distribution valve, and then disassemble the sensor housing, which will allow you to clean the box. The Navien gas boiler, the malfunctions of which led to the error message 02 on the display, most likely encountered an air lock problem. At the same time, the water is in the circuit, it heats up, but after air enters, the temperature drops sharply, it reaches a critical level, which is why error 02 appears on the display.

Error 10 occurs

Error 10 is issued when the fan malfunctions, it may be bent, and in some cases the air pressure sensor tubes are incorrectly connected. They should lead to the fan snails. Sometimes error 10 is indicated by a clogged chimney or strong gusts of wind.

Ways to solve the problem

The Navien wall-mounted gas boiler, whose malfunctions may be indicated by the number 10, must be repaired, which sometimes involves replacing the fan. If necessary, the master should clean the chimney. You should make sure that the connection of the pipes that lead to is carried out correctly. They must have an inflection.

The occurrence of noise

Sometimes users notice that a double-circuit boiler starts making noise when turned on, and no error appears on the display. The pressure in the heating circuit can be 1.5 atm, and the solution to the problem is to use a high-quality coolant that cannot lead to a breakdown of the heat exchanger. If you still encounter this problem, then the heat exchanger must be removed and cleaned, if necessary, replaced with a new one.

Error 011

Malfunctions of the Navien Ice boiler are sometimes accompanied by an error in the form of 011. It indicates the filling of the coolant. If you purchased equipment designed for the European market, then such an error may occur, but for adapted boilers it is impossible.

Conclusion

"Navien" - boilers, the fault codes of which were listed above, are characterized by reliability, ease of operation and installation, as well as versatility and safety. These qualitative characteristics often force consumers to choose such devices for providing housing with hot water and arranging a heating system.

In those places where there is a gas distribution line, gas equipment is used to create autonomous heating systems. Recently, the popularity of boilers of this type has increased significantly. As consumer reviews show in apartments located in high-rise buildings, it is best to install navien gas equipment. This is the most suitable option. The products of this company appeared on the market of our country relatively recently. However, she quickly gained popularity.

Navien is a company that is considered one of the largest enterprises in South Korea. The organization has established the production of power engineering, designed for operation in domestic conditions. Judging by the reviews, gas boilers of this company are in no way inferior to heating equipment from other manufacturers known all over the world. The range of Navien equipment is quite large. However, a special niche is occupied by double-circuit boilers, which have a fairly long service life and are quite convenient during operation.

Gas boilers Navien: advantages

Consumer reviews show that Navien's heating equipment has clear advantages and minor disadvantages. Among the advantages of gas boilers should be highlighted:

1. Each model is energetically justified. In the reviews, many consumers write that gas is an efficient and cheap energy carrier.
2. Wall-mounted double-circuit boilers Navien are environmentally friendly devices. After all, such equipment emits only carbon dioxide, which is absorbed by various green spaces.
3. In addition, gas boilers of this brand are automated equipment. It is able to work for a long time according to a predetermined program without failures.
4. In the production of Navien gas boilers, only modern technologies are used that provide a sufficiently long service life without service checks.

disadvantages

Also, among the advantages, consumers highlight the simplicity and accessibility of management. This makes working with the boiler comfortable and easy.

Of course, the reviews also indicate the disadvantages of such equipment. Gas boilers Navien need a constant power supply during operation. Of course, this problem can be solved. To prevent various power surges in the network, as well as to avoid problems associated with power outages, it is worth installing a stabilizer. You can use models with plug-in or built-in batteries.

Principle of operation

To determine the advantages and disadvantages of Navien gas boilers, it is necessary to understand the principle of their operation. Double-circuit heating equipment operates according to the standard scheme. Due to the absorbed heat, which is generated during the combustion of fuel, the heat exchangers of the boiler are heated. The circulation of the coolant, as well as water, occurs using a pump, which is built into the heating equipment system.

Air is forced into the combustion chamber. This process is carried out through the ventilation system, which is also built into the boiler. Oxygen enters the system through the chimney. This part is mounted in various models with a closed firebox.

It is worth noting that Navien products are made of stainless steel. This allows you to significantly increase the life of wall-mounted gas boilers. After all, such a material is perfectly protected from corrosion and is able to withstand prolonged thermal loads, as well as thermal shocks.

Boiler design

The cost of heating equipment depends on several indicators. So, single-circuit boilers cost much less than double-circuit ones. However, it is worth considering that the latter provide not only heating of individual rooms, but save on hot water. After all, one of the circuits supplies hot water.

In general, Navien wall-mounted gas boilers consist of:

1. Corps.
2. Heat exchanger.
3. Burners.
4. circulation pump.

Installation of Navien gas boilers is quite simple. As the reviews show, it is enough to connect all pipes to the mounted mixers. After that, they should be connected to the entrance to the heating system. That's all.

Burner Design Features

Modern models of Navien gas boilers differ mainly in the structure of the burner. There are open and closed devices. In the first case chimney required which works on the principle of natural traction. In open-type equipment, oxygen for the burner is taken from the room where the gas wall-mounted boiler is located. In this case, the arrangement of good ventilation is required so that an uninterrupted flow of air from outside is present in the room.

Closed burner models must have a coaxial chimney. Oxygen is supplied through it, as well as various products of combustion are released. A similar type of system is activated by forced draft. This happens due to the ventilation hole, which is located between the pipes of the coaxial chimney. In the reviews, many consumers write that it is better to take the chimney outside through the wall. In this case, the structures should be placed at the same height where the boiler is located. The distance from the floor should be at least 50 centimeters. This is much more economical when compared with a chimney, where natural draft is provided.

Other features of Navien boilers

Navien gas heating equipment is available in three colors:

• gold,
• silver
• white.

The main advantages are aesthetics and compact dimensions. These advantages are noted in many reviews. Of course, this is allows boilers of this brand to fit into almost any interior. In addition, a certain model range is ranked by the power of all devices, which can be 9 - 35 kW.

Also, many consumers in their reviews indicated another advantage of gas boilers of this brand - a special system that prevents the coolant from freezing. For these purposes, a separate sensor is provided in the design, which is responsible for starting the pumps exactly at the time when the temperature in the room drops to 10 degrees Celsius.

Main lineup

ATMO

Such a gas boiler is equipped with a fairly convenient system that allows you to naturally remove the forming vapors. It is worth noting that the design of such equipment is designed specifically to work in fairly harsh conditions, where there are noticeable changes in gas pressure, as well as various fluctuations in the main gas pipeline.

The power of such heating equipment is 9 - 24 kW. This figure depends on the specific model. Such power is quite enough to heat the coolant in the heating system up to 80 degrees, as well as hot water - up to 60 degrees above zero, taking into account the intensity of use: up to 10 liters per minute.

NSN

Many consumers in the reviews note this model range as the most modern achievement of the manufacturer Navien. The efficiency of this heating equipment is 110%. Such indicators are achieved by using the temperature of the vapors that are emitted through the chimney. The heated condensate moisture is collected in the heat exchanger. It also heats up the water flow.

It should be noted that Navien boilers of this model range are equipped with a system that collects condensate containing a minimum of various harmful emissions. In addition, the equipment provides a system that allows you to adjust the power. In turn, this implies the ability to control the heating of the coolant.

Ace Coaxial

Judging by the reviews, gas wall-mounted boilers of this model range have all the advantages of Navien equipment. Units of this kind are quite simple to operate., differ from others in a significant indicator of efficiency and reliability. To make it convenient to use such equipment, the manufacturer installed a wide LCD screen that displays technical information.

In addition, navien heating equipment can be controlled remotely. Boilers of this model range are equipped with a special remote control, which has a built-in temperature sensor. In turn, this allows you to change the boiler settings automatically depending on the microclimate in the room where the remote control is located.

Navien gas boilers, according to reviews, do not cause problems to their owners during operation. They are made in Korea, but with a focus on our market. The range includes models with a hermetic and non-hermetic combustion chamber, as well as with a condensing heat exchanger. All of them are double-circuit, equipped with programmable microchips and multi-level protection.

Turbocharged boilers Navien Deluxe Coaxial

Deluxe and turbo models differ in the method of connecting the chimney.

The Navien deluxe gas boiler must be hung on the wall, it is double-circuit, the combustion chamber is sealed. This means that it can heat water in two directions at once: heating and hot water. The air for the fire is not supplied from the premises, but from the street through. A turbine is installed above the burner to take in air and exhaust gases. It is powered by the mains and without it the functioning of the boiler is impossible.

This heater is designed in such a way that it can work in our conditions. This applies to gas pressure, the quality of the coolant, and the harsh Russian winters. This unit has a useful feature that prevents the system from defrosting. This option in Navien gas boilers, according to reviews, saved more than one circuit. When the coolant temperature drops to 10 degrees, it automatically turns on. It drives the liquid along the circuit so that it does not freeze. If the temperature continues to fall and reaches 6 degrees, then the boiler turns on and heats the liquid to 21 degrees.

The burner is made of stainless steel. It can be set to turn on and off according to the desired room temperature. The heater easily tolerates:

• water pressure drop to 0.1 bar;
• gas pressure drop to 4 atmospheres;
• malfunctions of the Navien boiler associated with power surges are excluded.

The heaters of this line are produced with a capacity of 10, 13, 16, 20, 24, 30 kW. The power can be adjusted. The boiler heats water for heating in the range of 40-80 degrees, and for hot water 30-60 degrees. To remove the products of gas combustion, a 75/70, 60/100 or 80x80 chimney can be connected to the heater.

Turbocharged boilers Navien Ace Turbo Korea

The filling of the Ace Turbo Korea boiler is no different from the Deluxe Coaxial. That is, both units are dual-circuit, can operate under the same conditions, are equipped with identical systems for maintaining the temperature in the room and preventing defrosting of the circuit. The combustion chamber is also sealed and works in tandem with the fan. Malfunctions of the Navien gas boiler during power surges are excluded thanks to a special chip in the microprocessor.

The operation of a sealed combustion chamber is impossible without a turbine.

There are two modifications with a capacity of 35 and 40 kW. Naturally, such Navien boilers consume more gas according to the instructions. At the minimum power, the consumption is 1.48 m3/h of natural gas, at the maximum power - 4.4 m3/h. In addition, the heater can operate on liquefied gas, in which case the consumption is somewhat less. Main characteristics:

• Efficiency 91.5%;
• minimum power 14 kW;
• minimum water pressure in heating 0.6 atmospheres;
• the minimum pressure of the DHW system is 0.1 atmospheres;
• throughput 20.1 or 22.9 l/h depending on power.

For such units, only the FF 75/70 chimney is suitable - this is one of the main differences between this model and Deluxe Coaxial. Heater weight 30 kg. The cross section of the pipes for connecting to the heating system and the central gas pipeline is ¾ inch. ½ inch hot water connection. The installation of the equipment may only be carried out by a specialist with the appropriate level of authorization.

Condensing boilers Navien NCN

Condensing boilers are the most modern type of heaters for heating. The unit is always assembled from the latest components, so its price is not small. The peculiarity of this heater is its high efficiency, which reaches 98%.

The boiler comes with a remote control.

Closed combustion chamber. Due to the special design of the heat exchanger, the unit is able to heat the coolant or water for hot water supply not only with a flame, but also with smoke formed as a result of combustion. The combustion products are not immediately taken out into the street, but pass through a special channel, where they have time to cool down. At the outlet of the heater, the temperature of the gases is low, so even plastic chimneys can be used. By the way, the technical characteristics of the Navien gas boiler allow the use of coaxial chimneys 60/100 and 80/125, as well as separate chimneys 80x80.

Useful options:

• frost protection;
• auto diagnostics;
• programmable microprocessor;
• remote control with LCD display.

As the smoke cools, condensation occurs. It is collected in the boiler and when its volume becomes critical (about 250 ml), the condensate is simply thrown out through a special pipe. A sewer pipe must be connected to this pipe.

From the remote control, you can send commands to the boiler in manual mode, or you can program it to maintain the temperature in the room. In this case, the remote control performs the function of a remote temperature sensor. The condensing heating boiler Navien is available with a capacity of 25, 32 and 40 kW. The package includes a circulation pump and 6.5 liters. All modifications run on natural and liquefied gas. The minimum power for heating is 4.9 and 7 kW, for hot water supply - 4.8 and 6.8 kW. The operation of the heater is possible only if the pressure in the DHW system is at least 3 atmospheres.

Atmospheric boilers Navien Ace Atmo

The peculiarity of this line lies in the open type combustion chamber, into which air enters directly from the room where the unit is installed. All models are double-circuit, power 13, 16, 20, 24 kW. A processor is installed in the boiler, which prevents the system from defrosting, protects against power surges and pressure drops in the heating, hot water and gasification system.

Gas boiler Navien 24 kW specifications:

• Efficiency 86%;
• minimum power for heating 9 kW;
• minimum water pressure 0.1 bar;
• minimum DHW pressure 0.6 atm.

For such boilers, a chimney with a cross section of 130 mm is required. The diameter of the pipes for heating is ¾ inch, and for hot water and gas ½ inch. The unit runs on natural and liquefied gas. This is a volatile device that consumes 110 W / h.

Wall-mounted gas double-circuit boiler NAVIEN Ace 13-40 kW

Gas equipment, which is used to create autonomous heating systems, has been most in demand over the past few decades in those places where there are gas distribution lines. For the installation of this type of heating in apartments of multi-storey buildings or cottages, navien gas boilers are one of the most suitable options. The products of this brand appeared on the domestic market not so long ago, but they quickly won the loyalty of customers.

Navien is a company belonging to one of the largest companies in South Korea. She is engaged in the production of universal power engineering for use in everyday life. And the boilers of this brand are practically in no way inferior to the products of world leaders in the production of equipment for autonomous heating. Among the large range of products, a special place is given to double-circuit wall-mounted boilers, which are easy to use and have a long service life.

Advantages and disadvantages of equipment

Like any other heating equipment, Navien gas heaters have an extensive list of advantages:

• All models are economically justified, given that gas is currently the cheapest and most efficient energy carrier.
• Double-circuit wall-mounted boilers are environmentally friendly appliances, since only carbon dioxide is emitted into the air, which is absorbed by green spaces.
• Gas-fired equipment is fully automated, so it can operate for a long time according to a given program.
• The technologies used in the production of Navien boilers provide long service life without periodic service checks.
• Affordable and simple controls make working with products from Korea easy and as comfortable as possible.

Among the minuses of Navien equipment, only the constant need for power supply can be noted.

Therefore, in order to protect yourself from problems associated with power outages and surges in the network, you should use various stabilizers with built-in or plug-in batteries.

Design features and principle of operation

Navien double-circuit boilers operate according to the standard scheme for this type of equipment. The heat exchangers of the unit are heated by absorbing the heat generated by burning the gas. The circulation of water and coolant is carried out using a pump built into the boiler system.

Air is forced into the combustion chamber through a built-in ventilation system. It takes oxygen through a chimney mounted in a model with a closed firebox.

To increase the duration of operation, navien wall-mounted boilers are made of stainless steel. It is reliably protected from corrosion and withstands long-term thermal loads, as well as sharp thermal shocks.

Boiler design

Of course, the cost of dual-circuit units is significantly higher than the price of a single-circuit device. But do not forget that with the help of the Navien boiler, not only heating in the room is provided, but also the supply of hot water.

The wall unit includes the following items:

• Frame.
• Circulation pump.
• burner.
• Heat exchanger.

The connection scheme for such a unit is extremely simple - during the installation of a wall-mounted boiler, it is quite enough to simply connect all the pipes to the mounted mixers, and then bring them to the entrance to the heating system.

All modern Navien models differ from each other in the device of the burner. If these are open-type devices, then they provide for the mandatory supply of a chimney that operates on the principle of natural draft. For the burner, oxygen is taken directly from the room in which the wall-mounted boiler is located. Therefore, the owner will have to ensure an uninterrupted supply of fresh air.

The design with a closed burner provides for the presence of a coaxial chimney through which oxygen is supplied, as well as combustion products are removed. This type of system is activated by creating forced draft through a vent between two pipes of a coaxial chimney, which is led through the wall to the street. At the same time, the structure is located at the height of the boiler itself, about one and a half meters from the floor level, which is more economical than a natural draft chimney.

The most popular models of wall-mounted boilers Navien

Boiler NAVIEN Ace TURBO Coaxial

All models of double-circuit gas boilers of the Navien brand have both pluses and minuses. In order to understand at least a little about each line presented by the manufacturer, you should familiarize yourself with their characteristics.

Navien gas appliances are available in three colors - white, silver and gold. Their main advantage is their compact size and aesthetics, thanks to which the boilers can be installed in any interior. The Navien Ace range is ranked by instrument power, which ranges from 9 to 35 kW.

All products are equipped with a special system that prevents the coolant from freezing. To do this, the design provides a sensor responsible for starting the pumps when the temperature drops to +10 degrees.

Now more about each presented series:

• ATMO - gas boilers are equipped with a convenient system of natural removal of the resulting vapors. The design of such a unit was created to work in harsh conditions with significant gas pressure drops or fluctuations in the gas pipeline. The power of products in this series ranges from 9 to 24 kW, depending on the model. This power is enough to heat the coolant in the heating system up to +80 degrees and hot water up to +60 degrees with an intensity of its use of 10 liters per minute.
• HSN - this model range is the most modern achievement of the manufacturer Navien. The efficiency of such boilers can reach 110%. Such indicators are the result of using the temperature of the vapors emitted through the chimney. The heated moisture of the condensate is collected in a heat exchanger, which heats the incoming water flow. In addition, the boilers of this model range are equipped with a condensate collection system, which contains a minimum of harmful emissions. The devices provide a system for regulating the power of work, and hence the control of the heating of the coolant.
• Ace Coaxial - wall-mounted boilers of this series have all the advantages of Navien units. They are easy to operate, have a high degree of reliability and significant efficiency. For maximum ease of use, all devices are equipped with a wide LCD display that displays the technical information of the device. For remote control, the unit is equipped with a remote control with a built-in temperature sensor. This makes it possible to automatically change the settings of the boiler, depending on the microclimate in the room where the remote control is located.

About installation

Installation Features

Installation of all models of wall-mounted double-circuit gas boilers Navien is a simple and simple procedure. After all, detailed instructions are attached to each unit of this manufacturer. Therefore, all work on its installation can be carried out on its own or by specialists from companies offering heating installation services.

But do not forget that the installation of a heating gas boiler is associated with various activities that are carried out only by specialists who control gas consumption. In any case, you will have to invite a gas company employee to conclude a service contract and obtain a permit to operate a gas boiler. Otherwise, high fines cannot be avoided, up to a ban on using a gas installation.

An important point that should be taken into account is the need for a rational choice of a gas removal system. In most cases, for the operation of wall-mounted boilers of the Navien brand of all modifications, an inexpensive, but at the same time incredibly efficient coaxial chimney can be used. Installation of the exhaust system can be carried out not only vertically, but also horizontally.

Conclusion

Navien wall-mounted gas boilers are made in Japan and Korea, which is a guarantee of their reliability and impeccable quality. They have several control modes, a remote control in Russian and many other little things that make the operation process easier. It is very important that even with power fluctuations the equipment works flawlessly, safely and according to the highest quality standards.

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

1. heating water filter
2. drain plug
3. safety valve
4. make-up tap outlet
5. heating water supply (inlet) 3/4 inch
6. heating water return (outlet) 3/4 inch
7. domestic hot water 1/2 inch
8. cold domestic water supply 1/2 inch
9. 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 about 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 .