Gas boilers Navien (Navien). We study the Navien wall-mounted double-circuit gas boiler - design features, advantages and disadvantages Navien mounted boilers

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

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

Brief description

1. Navien Smart 30K.

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

2. Navien Deluxe 10K.

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

3. Navien Ace 24.

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

4. Navien GA 17KN.

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

5. Navien NCN 21KN.

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

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

6.Navien Prime 13K.

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

Buyer opinions

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

Egor, Yekaterinburg.

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

Sergey Trofimov, Moscow region.

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

Dmitry, Novosibirsk.

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

Denis, Moscow.

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

Andrey, Rostov-on-Don.

Price

* the weight of the boilers is indicated without water.

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 devices, 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. Such 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 gas heating 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.

Korean wall-mounted double-circuit gas boilers Navien today are the best option when buying, given the sharp rise in price of all imported heating equipment. Of course, the increase in the price of gas boilers has affected all manufacturers, but you must admit that it is one thing to pay 30-35 thousand rubles for a boiler, and another to buy it for 50-60 thousand.

Is it worth overpaying, in fact, for the same thing, only made in Italy or? Good build quality, reliability, customer reviews and, most importantly, low price have made the Navien brand very popular in Russia in recent years.

In this review, we will try to understand the models of Navien boilers on the Russian market, their differences, device and technical characteristics, as well as the advantages and disadvantages of boilers of this brand.

Features of models of gas boilers Navien

In the Russian market, the company sells double-circuit wall-mounted gas boilers, both with forced draft (turbocharged) and natural (atmospheric). They are designed for heating a house with a total area of ​​30 to 400 m2, depending on their capacity.

All models are double-circuit, which makes it possible to use them for heating household running water for domestic needs. They can operate on natural and liquefied gas.

Gas boilers Navien Prime and Navien Deluxe

The performance of hot water also depends on the power of the gas boiler. The higher its power, the more water it will give you. Boilers with a capacity of 13 kW produce 10-11 liters of hot water per minute, from 16 kW to 24 kW - 14 l / min., from 30 kW - about 16-17 liters. In practice, it has been proven that for a good supply of hot water to a family of several people, a capacity of 14 l / min is quite enough.

Turbocharged boilers are represented by a wide power range from 13 to 40 kW. The number in the abbreviation indicates the thermal power of a particular wall-mounted boiler model.

In stores you can find the following models:

— Navien Deluxe 13k;
— Navien Deluxe 16k;
— Navien Deluxe 20k;
— Navien;
— Navien Deluxe 30k;
— Navien Deluxe 35k;
— Navien Deluxe 40k.

Boilers Navien Deluxe Coaxial - Specifications

Table of technical characteristics of Navien Deluxe Coaxial boilers

In addition, turbocharged (with a closed combustion chamber) double-circuit gas boilers of a Korean manufacturer differ in the type of output of combustion products and air inflow.

They are of two types:

- with a coaxial chimney;

- with a separate chimney.

Boilers Navien with a coaxial chimney are labeled Deluxe Coaxial. In previous years, a 24 kW turbocharged boiler was designated as Navien Ace 24 E. Where the letter "E" meant "Euro", i.e. European type of chimney pipe.

A coaxial chimney is a pipe-in-pipe chimney. Air flows into the boiler from the street through the outer pipe, and combustion products are ejected through the inner pipe. The diameter of these pipes is 60/100 mm, which is also indicated in the instructions.

For those situations, if the installation of a gas boiler is impossible according to the project, practical and cunning Koreans came up with a boiler with the possibility of installing the so-called separate chimney.

This type of turbo-boiler is already equipped with two pipes for connecting: the first pipe, which ejects combustion products, and the second one for air suction. Instead of the second pipe, you can also put aluminum corrugation, it is cheaper. The nozzle diameter is 75 mm and 70 mm, respectively.

This type of boiler is marked with the letter "K", i.e. Korean version of the chimney. For example, if you see the designation Navien Deluxe 16K on the price tag of a boiler in a store, this means that you have exactly this type of Korean-made double-circuit gas boiler. See photo below.

When choosing a boiler, also keep in mind that boilers with a Korean version of the chimney are produced with a maximum power of up to 40 kW inclusive, while with a coaxial pipe - only up to 30 kW.

Boiler Navien Deluxe 24K with channel separator

Line of gas boilers Navien with open combustion chamber represented by models with a capacity of 13, 16, 20 and 24 kW for space heating from 30 to 240 m2. They are marked Navien Ace 13-24 A.
The symbol "A" tells us that this device is atmospheric, and the numbers - about its power. On boilers of this type there is no fan (turbine), and the output of combustion products occurs by natural draft.

An atmospheric boiler can be bought if your house already has a chimney, for example, from asbestos-cement pipes, sandwich pipes or brick pipes. It will simply be necessary to purchase separately pipes made of steel (preferably stainless steel), and bring them into an existing chimney.

The diameter of the nozzle on the boiler is 130 mm. This is important to remember, because it is impossible to narrow the chimney.
And, if, for example, you have an asbestos pipe with an inner diameter of 100 mm, then it will have to be replaced with pipes of a larger diameter. Otherwise, the boiler will not work correctly and will quickly fail.

The device of double-circuit gas boilers brand Navien

Like most modern double-circuit wall-mounted gas boilers, South Korean-made boilers are equipped with:

The device of a double-circuit gas boiler Navien Deluxe Coaxial

- the main heat exchanger for heating water in the heating system;
- secondary heat exchanger for heating hot water;
- circulation pump;
— membrane expansion tank;
- electronic board ("brains" of the boiler);
- burner assembly;
- safety group (air and safety valve, pressure gauge, sensors);
- a three-way valve for switching the operation of the circuits;
- turbine (for versions with forced draft).

Design features of double-circuit boilers Navien

1. Navien boilers have two separate heat exchangers: one for heating, the second for running domestic water. An important feature is that both heat exchangers are made of stainless steel.

Then, like most competitors, only the secondary heat exchanger is made of stainless steel, and the main one is made of copper, or there is only one bithermic copper heat exchanger for heating both circuits. Stainless steel in itself guarantees a long service life of a gas boiler.

2. Another important point is that the company produces all the elements of the boiler itself. Both the pump and the membrane tank and heat exchangers are produced in South Korea. Unlike, say, many others, in which parts from different manufacturers are often installed.

3. The electronic board of the Navien boiler has a special built-in chip to protect against power surges. The same protection of the “brains” of the boiler is provided only on wall-mounted gas boilers made in Germany, but the heating equipment of this brand belongs to a different price category.

But, despite this chip, experts still recommend buying it, given our Russian realities, when the range of power surges in the mains can be quite decent.

4. And finally, the most noticeable distinguishing feature of Korean manufacturers is remote boiler control unit Navien. This is such a special "box" that has a digital display and buttons for controlling the operation of the boiler.

Boiler control unit Navien

The display shows information about any malfunction and error during the operation of this equipment, the set temperature of water, coolant, air, as well as time. Using the buttons, the operation parameters are manually set: mode, temperature, turning the boiler on and off.

A very important point is the presence in the control unit of a built-in room temperature sensor. Usually, from other manufacturers, this sensor is considered as an additional option, and is purchased for a fee.

The "Koreans", however, it comes with a boiler. And you don’t even need to buy wires: they are already on the boiler and on the block. The difference is made by boilers of the series Navien Prime and Navien Deluxe Plus. The control unit here is built into the body of the device and, as a result, there is no ambient temperature sensor.

Connection and installation of the Navien boiler

Like all wall-mounted double-circuit gas boilers, the "Koreans" have 5 fittings at the bottom of the body for connecting water and gas. The order of fittings from right to left: gas connection, running water inlet and outlet, coolant inlet and outlet.

The diameter of fittings for domestic water is 1/2 inch, gas and coolant 3/4 inch.
Be sure to install on each supply pipe.

Between the boiler and the wall on which it will hang, it is necessary to install a stainless steel protective screen measuring 1000 by 600 mm for fire safety purposes. Also, for the correct installation of the boiler on the wall, a special mounting plate is included in the package.

Connecting the gas boiler Navien Deluxe Coaxial

Advantages of Navien boilers:

— good price-quality ratio;
- two stainless steel heat exchangers;
- the presence of a remote control unit with a built-in air temperature sensor;
- the presence of a protective chip against a power surge;
- a wide range of models and colors;
- cheap spare parts.

Disadvantages of Navien gas boilers:

- noise during operation;
— Fit only native spare parts;
is an Asian brand.

So, we reviewed the range of Korean wall-mounted double-circuit gas boilers Navien, their differences, dismantled the external and internal structure of the boiler. Watch a video review of the boiler.

Looking at the technical specifications, as well as reviews of owners and specialists, Korean-made Navien boilers are perhaps the best for choosing heating equipment today, if we take into account such a parameter as price-quality. In general, this is a very worthy and inexpensive device for a modern heating system in your private home.

Today, the Italian brand "Navien" offers people a wide selection of gas boilers. At the same time, there are many dual-circuit modifications on the market. However, this company is unfamiliar to many consumers, and in connection with this, many questions arise. First of all, it is important to evaluate the quality of the parts.

In particular, before buying a person should clarify information about the collector. At the same time, a wide variety of sensors are installed in gas boilers. Many models have copper heat exchangers, and this is an advantage. In turn, the cranes are installed three-way and do not stand out for special strength. In order to get acquainted with the models of gas boilers in more detail, it is important to realistically evaluate the parameters of the devices, as well as pay attention to consumer reviews.

Characteristics of the boiler "Navien Ace 16k"

These Navien gas boilers are suitable for many in size, because they are very compact. Their total weight without water is only 25 kg. As you can see from the name of the model, the maximum power is 16 kW. However, the user has the ability to adjust it. Thus, a person is able to save a lot of natural gas.

Additionally, from the parameters of the device, a high efficiency can be noted. At the same time, the heat exchanger is made quite high quality. For connection to the water supply system, the manufacturer provides a pipe diameter of 1.2 inches. The maximum temperature can be set to 80 degrees. These gas boilers "Navien" (market prices) cost about 30-31 thousand rubles.

Model "Navien Ace 24k"

This gas boiler "Navien" has good reviews, and many buyers appreciated this model on the positive side for its high performance. However, there are also dissatisfied owners. This is primarily due to bad sensors. In some cases, they fail, and then they have to be replaced. Also, breakdowns most often occur due to the controller. In this case, the repair is quite expensive.

Of the advantages, in turn, one can note a fairly high-quality heat exchanger. With the installation of this model to the wall, problems are quite rare. All fasteners are included in the standard set. The consumption of liquefied gas is at the level of 3 cubic meters. m. in one hour. The specified "Navien Ace 24k" will cost the buyer in the region of 35 thousand rubles.

Consumer reviews about the boiler "Navien Nsn 24 k"

This model is primarily characterized by high power at the level of 24 kW. The consumption of natural gas is within the normal range. The efficiency, in turn, is only 80%. Connecting pipes in a set come with a diameter of 1.5 inches. Maximum water can be heated in a gas boiler "Navien Nsn 24 k" up to 80 degrees. The controller in this model is installed in the Pete series. The specified gas boilers "Navien" (market prices) cost about 15-16 thousand rubles.

Gas boiler "Navien Ace 24a"

These Navien gas boilers are not in great demand today. This is largely due to the fact that their dimensions are quite large. With an empty tank, the gas boiler weighs as much as 35 kg. In this regard, its installation is quite problematic. In some cases, the fasteners begin to wear out. Ultimately, there is a lot of pressure on the outlet pipes. However, the Navien Ace 24a also has advantages. First of all, many note the high power of the device. Productivity at the same time makes 13 liters a minute. The maximum temperature model is able to reach 75 degrees. The specified boiler will cost the buyer about 37 thousand rubles.

Consumer opinion about the ACE 13k boiler

According to the characteristics, these Navien gas boilers are quite acceptable, and a standard pressure gauge is installed in them. The tank is quite extensive, and its protective layer prevents the formation of corrosion. There are a variety of sensors in the system. To control the total pressure, they are installed in the outlet pipe. In addition, there are temperature sensors that are located in the tank. At the same time, the collector copes with flue gases quite successfully. Among the shortcomings, a weak ignition transformer should be noted. Also, the circulation pump may fail, but this happens quite rarely. In general, this model is suitable for a large family, but compared to other models, it is quite expensive. On the market, this gas boiler will cost an average of about 35 thousand rubles.

What do they say about the Navien Ace 16a boiler?

This gas boiler "Navien" has positive reviews and today is very popular. First of all, it differs in that its total weight is only 22 kg. At the same time, the expansion tank is completely made of aluminum. Common pressure sensors are installed at the inlet and outlet. The flue gas collector is standard. Water is supplied through a special filter. Additionally, the specified gas boiler is distinguished by the presence of a differential type relay. Its throughput is pretty good. The specified element works for a couple with a secondary heat exchanger. This gas boiler costs exactly 35 thousand rubles on the market.

Model parameters Ace 35k

This wall-mounted gas boiler "Navien" is in demand among many buyers because of its parameters. The performance of the system averages 14 liters per minute. Among the models of the above series, this is the best indicator. The Ace 35k also boasts the high pressure it can handle. Fasteners in the standard kit are included quite high quality. In terms of dimensions, this model does not differ from its counterparts. In addition, it should be noted that the connection pipe for natural gas is 1.2 inches in diameter. The overall efficiency in this case is at the level of 85%. This model costs exactly 30 thousand rubles on the market.

Overview of the gas boiler Ace 13a

This model attracts many buyers with its simplicity. To do this, she has a fairly high-quality controller, which is very easy to set up. Additionally, this gas boiler boasts a low consumption of natural gas. In our time, this is an important factor, and it should be taken into account. The overall efficiency is at the level of 88%. The user can set the maximum water temperature to 85 degrees. The thermal power of the specified unit reaches 22 kW. At the same time, the system maintains the maximum pressure at 15 bar. The presented boiler on the market will cost about 39 thousand rubles.

Consumer reviews of the Ace 20a

Many buyers choose this model for its compactness. For a large family, it is better not to purchase the indicated gas boiler. It should also be borne in mind that its productivity is 13 liters per minute. The user can set the maximum water temperature to 80 degrees. The thermal power of the specified device is at around 15 kW. In turn, the labor productivity ratio is exactly 8%.

Compared to other models in this series, this gas boiler boasts a high-quality controller, as well as filters. In this regard, it can serve the owner for many years, and breakdowns occur quite rarely. The model kit includes the following: gas boiler "Navien", instructions, as well as fasteners. It costs about 32 thousand rubles on the market.

Model "Navien Ace 20k"

These Navien gas boilers are considered fairly new, and there are only three filters. In turn, three-way valves are installed above the pressure gauges. In this regard, the throughput of the device is quite good. In general, many buyers respond positively to the presented gas boiler due to the safety relief valve. Thanks to him, breakdowns occur very rarely.

In addition to the features of this modification, ignition of the electrode type can be safely attributed. Today it is considered more reliable. The expansion tank in the gas boiler is installed with a protective layer, so corrosion does not occur. The air vent in the system works automatically. The supply of natural gas to the secondary heat exchanger is controlled by a special sensor. The model kit includes the following: gas boiler "Navien", instructions, as well as fasteners. It will cost the buyer on the market about 30 thousand rubles.

Real reviews about Ace 30k

The specified double-circuit gas boiler "Navien" is able to withstand the maximum pressure at a level of 4 bar. The heated area in this case can be 160 square meters. m. Malfunctions of gas boilers "Navien Ace 30k" are most often associated with the controller. The connecting pipes in the kit come with a diameter of exactly 1.5 inches. The performance of this model is 12 liters per minute.

The maximum temperature is 80 degrees. The thermal power of this modification is at the level of 15 kW. In turn, the efficiency of the system is exactly 85%. As a result, we can say that this model is well suited for home or summer cottages. Also of note is the high quality of the parts. This gas boiler costs about 25 thousand rubles on the market.

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 automatic de-airing with DIP switch No. 1, which will start circulation for 2 hours and de-air little by little automatically.
• Turning switch #2 on switches 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 boilers of a Korean company 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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