Double-circuit gas boiler for heating navien. Economical and inexpensive gas boilers Navien. Specifications from the technical side

Autonomous heating and hot water supply turn a private house into a comfortable home that provides considerable savings and does not depend on the appetites of resource suppliers.

Installing your own boiler allows you to independently adjust the heating mode, based on the need and climatic conditions, and not the average annual schedule for the supply of coolant.

The choice of equipment in the distribution network is extensive, but finding the most successful option is quite difficult.

The cost of European models of boilers is too high, the quality of domestic samples often leaves much to be desired.

Consider one of the most successful options that combine affordable cost and high quality.

Navien gas boilers are products of the South Korean industrial concern KyungDong NAVIEN.

The company specializes in the production and design of heating equipment operating on various types of fuel - liquid, solid, gas and electricity.

Navien Deluxe is a series of double-circuit wall-mounted gas boilers that replaced the discontinued Navien Ace family.

The design and feature set have not changed much, although some points have been improved and supplemented.

The units supply the coolant (RH) to the heating system and at the same time provide the dwelling with hot water (DHW).

Korean developments were carried out taking into account Russian conditions and are specialized to work with unstable parameters in all areas - gas and water pressure, power fluctuations. The equipment fully complies with the norms and standards in force in the territory of the Russian Federation.

Navien boilers are equipped with a special device that compensates for voltage fluctuations in the network up to 30%.

What models are included

The Deluxe series includes the following models of boilers:

• Deluxe.
• Deluxe Plus.
• Deluxe Coaxial.
• Deluxe Atmo.

The first three models practically do not differ from each other, having only minor differences in the design of the chimney or the amount of gas supply.

The Atmo model is boilers with an open combustion chamber, which are distinguished by air supply directly from the room.

All types of boilers are available in various power options.:

• 13k(kw).
• 16k(kw).
• 20k(kw).
• 24k(kw).
• 30k (kw).
• 35k(kw).
• 40k (kw).

Some models are created on the basis of one standard size with software-limited functionality.

So, 24 and 16 kW boilers are of an identical design, but the 16 kW models have slightly reduced power. This gives the units a noticeable power reserve, allowing them to freely overcome load changes and external influences.

Specifications

Consider the technical characteristics of Navien Deluxe boilers:

There may be some changes or additions in the values ​​​​of the parameters of the boilers, resulting from the improvement of the design by the manufacturer.

Advantages and disadvantages

It is customary to attribute to the advantages of Navien Deluxe boilers:

• The ability to provide hot water supply along with the organization of home heating.
• Environmental safety of equipment.
• Adaptability to Russian technological and climatic conditions.
• Simple and reliable control, the presence of a remote control.
• The presence of a self-diagnosis system through a group of sensors that monitor all systems and components of the unit.

The disadvantages of the units are:

• Dependence on the availability of electricity, gas and water.
• High noise level.
• The ability to use only standard components.

All the features of the Navien Deluxe boilers, in fact, are specific design features and can be fully compensated for by proper operation and maintenance.

Device

The Navien gas double-circuit boiler heats the coolant and circulates it in the system.

The gas burner, combined with the primary tubular heat exchanger, heats the RH flow, which at the outlet passes through a three-way valve.

To obtain the desired temperature, a certain amount of the cooled return is mixed, after which the coolant is sent to the system.

The combustion mode is regulated by the supply of fresh air, which is performed by the fan.

Hot water is heated by a secondary heat exchanger (plate). The operation of all devices is controlled by a system of sensors that signal to the control board about the occurrence of certain problems.

Where is used

Navien Deluxe gas double-circuit boilers are designed for heating and supplying hot water in private homes.

The power of the boiler corresponds to the area served, which makes it easier to choose the right device.

For heating industrial or public buildings, the use of the Navien Deluxe series is not recommended, since the specific capabilities of the equipment in such conditions will not be fully disclosed.

Often, such equipment is installed in apartments, if their size allows you to install equipment of similar power.

What's Included

The package of boilers Navien includes:

• Primary and secondary heat exchangers.
• Expansion tank for 8 liters.
• Gas heater closed or open type.
• Three-way valve with electric motor.
• Fan for organizing turbocharging.
• Circulation pump.
• Sensor system connected to the control board.
• Built-in voltage regulator.
• Remote control.
• Body with external connections.

Depending on the model and series, some additional components may be present. Constant development and improvement of the design contributes to the complication of old and the emergence of new elements.

User manual

The operation of Navien boilers takes place automatically and practically does not need human participation.

The only thing that is required from the owner is to set a comfortable temperature for the heating. If liquefied gas is used as fuel, it is necessary to monitor the timely replacement of cylinders.

The ability to operate for a long time without specialized service checks is a feature of Navien equipment, which is convenient for users and relieves them of concern about the condition of the unit.

If any malfunctions occur, the corresponding error code appears on the display, the water pressure is shown by a pressure gauge, which allows timely detection of system leakage.

The owner may be required to purchase and install a special filter or water softener, which will extend the life of most boiler components - the heat exchanger, pump or three-way valve. If the water supply is from your own well, the installation of a softener becomes a necessity.

Do-it-yourself device setup

To configure the boiler, set the debug mode. Then you should adjust the gas pressure limits - minimum and maximum.

It is necessary to release air from the circulation pump by unscrewing the plug. This is done after a set of pressure during the circulation of RH.

The boiler operation is set using DIP switches.

• It is possible to turn on the automatic de-airing with the DIP switch No. 1, which will start the circulation for 2 hours and gradually de-air automatically.
• Switching on switch #2 sets the system to maximum power, at which the maximum gas pressure can be adjusted.
• When switch No. 3 is turned on, the boiler is switched to forced operation at minimum power, at which the minimum gas pressure is adjusted.

All switching must be done with the power off.

Boiler adjustment should be entrusted to specialists from the service center. Independent performance of work is possible only in case of urgent need and the absence of a guarantee contract.

Main malfunctions and their solutions

Faults that occur are shown on the display as a numerical code. Each of them corresponds to a certain error, i.e. a signal from a certain sensor about the failure of the corresponding node.

There may be additional codes, which should be carefully read in the user manual.

Owner reviews

The most reliable and unbiased information about the properties of Korean company boilers can only be obtained from people who use these units for heating and supplying hot water in their homes.

Let's take a look at some of the reviews.:

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For many owners of country houses, the issue of choosing gas boiler equipment remains relevant. It is important first of all to pay attention to the manufacturer.

Criterias of choice

The supplier company must prove its product in the market of relevant products. If you decide to prefer the Navien gas boiler, reviews of which will be presented below, then you should pay attention to a number of parameters, namely the power of the equipment, efficiency, and performance, which is very important when considering such equipment.

Power of boilers brand "Navien"

"Navien" - gas reviews about which you should find out, has a certain power, which is a combination of relevant parameters inherent in heat consumers. This includes radiators and hot water consumption, which is true if the boiler has two circuits. Considering the Navien gas boiler, reviews of which it will be useful for you to read before visiting the store, you should consider that double-circuit models are in demand more than others when organizing a heating system in a country house. Quite often, additional branches are attached to such devices, supplying auxiliary outbuildings with heat. This includes garages, baths, saunas or pools. In this case, you will have to select a device that can withstand high loads and has impressive power. This is the only way to ensure the simultaneous connection of all heat consumers. If there are only two heat consumers in a country house, namely hot water and heating, then it is possible to make a calculation regarding the heating system.

Calculation features

The calculation will be quite simple, but for this it will be necessary to take into account the dimensions of the room, the number of windows and the thermal insulation of the building. Experts say that for 10 square meters of building area with a standard ceiling height of three meters or less, 1 kilowatt will be enough. If there are more than two heat consumers, then a more careful calculation will have to be made.

Characteristics for comfort and efficiency of the boiler manufacturer "Navien"

The Navien gas boiler, reviews of which you can read in this article, can belong to one of three classifications, so the model can be wall-mounted, floor-mounted or compensatory. Floor and wall boilers are standard equipment, which is characterized by the installation location. As for the compensation equipment, it can be floor or wall. The main distinguishing feature of these models is a high efficiency, which can reach 100%. Thermal energy is collected in such models not only due to the combustion of fuel, but also due to the energy released during the condensation of steam. The latter leaves the boiler together with the products of combustion. If you need a Navien gas boiler, reviews of which will allow you to make a choice, then you should pay attention to the operating conditions. Modern products of the described brand can be adjusted to any conditions. You must consider that each category has its own strengths, which determine the effectiveness of the operation.

Reviews of mounted boilers of the company Navien

Consumers choose for the reason that they have a low cost and are characterized by ease of installation. If the heating system does not require compliance with certain serious requirements, then the mounted unit will be the most suitable solution. Buyers note that such models act as mini-boiler rooms, where the manufacturer has laid automation, an expansion tank, a circulation pump, as well as special sensors that are designed to ensure the safety of the equipment. This indicates that an excellent heating device is being opened at a low cost.

Navien gas heating boilers, reviews of which are quite often the most positive, can be installed independently, without the help of specialists. However, you should take into account that the unit has an impressive weight, so you will need the help of a second person to install such a device. The firebox must be connected to a gas pipe, and then cold water should be connected, the pipe should be connected to the hot water supply and the pipes connected to heating. Experienced users note that this equipment has another indisputable advantage, which is expressed in small sizes. If you hang the boiler on the wall, then the space under it can be used for your own needs.

Characteristics of floor boilers from the manufacturer Navien

Gas heating boilers "Navien", reviews of which are presented in the article, can be floor-standing. The strength of such devices is maximum reliability. Modern cast-iron floor-standing boilers have safety features and control over the course of fuel combustion. When compared with condensing and wall-mounted counterparts, they require maintenance and inspection once a year. If we are talking about outdoor equipment, then such a unit does not need such care. It will be enough to open it once every three years, clean the furnace, which will allow it to continue operation.

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

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:

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 controller system 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.

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

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

Heating boiler Navien: sales leader

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

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

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

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

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

Features of the Navien boiler design:

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

Advantages and disadvantages of Navien gas systems

Navien gas boilers have a number of advantages, namely:

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

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

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

ATMO model

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

HSN model

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

How to install a wall hung boiler?

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

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

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

Usually all boilers are equipped with such a complete set.

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

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

What could be nicer than the hugs of a loved one? Once in them, we leave all worries and problems behind. The peace and warmth that they radiate 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 a warm home. But this is not possible without a heating system. The latter should be not only reliable, but also cheap to maintain. Also, the price of the main modules should not skyrocket.

The central component for heating systems is a gas boiler. You can find hundreds or even thousands of offers in conventional or online stores. Models of domestic and foreign production are presented. Due to the increase in prices, the latter is 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 case is very much appreciated. It allows you to achieve the desired result and incur the 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. The strengths include the following:

The disadvantages of such gas boilers are much smaller and for many they will be insignificant:

• the price is higher than that of domestic counterparts;
• 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 end up in a landfill.

The lineup

Double-circuit gas boilers "Navien" are represented by several lines. Each of them has its own specific features that may be required for a particular dwelling. 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 takes place 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 of this subsection are ready to work even at a gas pressure of 4 mbar. In winter, this can be very helpful. 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 trouble does not come alone, and along with the blue fuel supply indicator, the water pressure also drops, then for Navien wall-mounted gas appliances, everything is nothing. The voltage stabilization system mentioned above perfectly tolerates the instability of the power supply. 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 are easy to fix on their own. Are you planning to leave home and leave no one to control? Do not worry about freezing protection in wall-mounted gas boilers, everything will be done for you.

It is easy to adjust the temperature of the Navien boiler in the heating system within the range of 40º to 80º Celsius. Even the most heat-loving will be satisfied. For hot water supply, this figure is in the range 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 can easily operate on both natural methane and liquefied gas, so even in the absence of a centralized supply, it will be possible to power it. For the transition, it is enough to use a special kit. Models of gas boilers are available whose power starts from 13 kW, and the maximum value is 24 kW.

Range with Navien Deluxe Coaxial turbine

Double-circuit wall-mounted boilers of this line are in many ways similar to the previous ones. They also tolerate various differences in gas and water lines. These "Navien" double-circuit boilers also cope with power surges perfectly thanks to the SMPS chip. Such boilers are equipped with a remote control with a sensor for better control. But they also have certain differences.

The combustion chamber in these wall-mounted boilers is closed, so a different system is used to supply air and remove exhaust. A special turbine is mounted directly under a specialized compartment of a double-circuit boiler. It forcibly pumps the volume required for high efficiency and complete combustion of the fuel. This boiler system is modulating. The atmospheric pressure sensor monitors its value and controls the fan speed. The lower the pressure, the higher the rotation of the turbine of the double-circuit boiler, so that there is no power loss. There is no need for massive shafts to eject mining. It is enough to get a special coaxial pipe for these wall-mounted boilers.

Primary and secondary heat exchangers of Navien double-circuit gas boilers are made of stainless steel. Their service life is 6 times longer than that of similar copper ones. They are less susceptible to corrosion even from hard water. Some may worry that the choice of such material in the production of Navien boilers will reduce their performance. But this is offset by an intelligent boost system.

It is important to know! Representatives of double-circuit boilers Deluxe Coaxial received the highest performance up to 30 kW. If this is not enough, then you need to look towards the Ace TURBO Korea subsection. They have slightly modified the system of work with the supply and removal of atmospheric air, but they will allow heating the area from 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 Navien NCN double-circuit boilers. They use a unique technology that allows you to use the available resources more efficiently. This line combines the advantages of the previous three. There are all systems of protection and control. Additionally, the boiler has a large backlit display that shows the current status. But the whole point is to increase the efficiency up 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 first gas, 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 enter there. Further, the mixture is transferred and ignited through the turbocharging unit of the Navien wall-mounted boiler. 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 the common system. Water, passing through this component of a double-circuit boiler, partially raises its temperature. Therefore, it enters the main burner of a wall-mounted dual-circuit appliance with a higher temperature, which means that it needs less energy to bring it to the state set on the control panel. Thus, savings are achieved in the double-circuit products of this line.

Important! Navien NCN boilers have another nice bonus. These double-circuit wall-mounted boilers are able to adjust the operating parameters depending on the weather. Those. if the temperature outside has dropped by another 10º, then you will not need to go and turn the thermostat up 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 make the right choice. The issue of assembling and installing a heating system is up to everyone to decide for themselves. Some people can do most of the work on their own. 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 double-circuit unit into operation and sign all documents. Do not save on quality, and as a result, on your health, choosing low-quality double-circuit boilers. You won't be able to get it back for the rest of the money.