Boiler Navien 13 kW technical specifications. We choose double-circuit gas boilers Navien. Design features of double-circuit boilers Navien

The production company "NAVIEN" is absolutely deservedly considered the largest manufacturer of household appliances from South Korea. The company is engaged in the production of first-class gas boilers, each of which is doomed to success in the market in its niche. Amazing performance characteristics are noted both by experts in the field of household heating equipment and directly by buyers who prefer Korean brand equipment.

However, not only gas boilers are supplied by the company to the international market. In an effort to make their maintenance as simple as possible, the manufacturer also creates basic components for heating systems and other targeted equipment.

Under the NAVIEN brand, many heating units with various technological parameters are produced. In this regard, the South Korean manufacturer seeks to meet the needs of a wide variety of consumers. Boilers "NAVIEN" are able to heat both small apartments, and country houses, and administrative premises of a large area. The model range of the company is wide enough so that anyone can choose the perfect unit for themselves, focusing on personal goals and the characteristics of the heated room.

The NAVIEN Ace 13K boiler deserves special attention. This device combines both practicality and aesthetics. Its reliability is not in doubt, and the build quality is simply amazing. NAVIEN Ace 13K is one of the best units that can satisfy a variety of customer needs. Today, this model can rightly be considered a leader in its price category.

More about this product

The NAVIEN Ace 13K gas boiler is the best choice for a practical buyer. A feature of the unit is that absolutely all the components in it are made in South Korea and Japan, which indicates their high quality. The device is assembled at factories that belong directly to the Korean company, which can significantly improve quality control. NAVIEN products comply with international ISO 9001 standards. All this suggests that the Ace 13K unit is designed for a long service life.

This model is popular in many European and Asian countries. Its success was determined by its technical parameters. And today it successfully heats houses all over the world.

This machine is incredibly durable. In this parameter, this unit is comparable with European counterparts, which are much more expensive. In order to make sure of its excellent performance, it is important to learn more about the technical features.

Features Ace 13K from NAVIEN

The gas boiler NAVIEN Ace series 13K is a 2-circuit model that is installed on the wall. This high performance unit is suitable for a wide range of applications. You can install it anywhere, whether it is an office building or a small apartment. At the same time, taking into account the rated power of the 13K series, experts recommend installing equipment in rooms with an area of ​​at least 130 square meters.

This boiler is equipped with a closed combustion chamber, which greatly simplifies its installation and operation in a city apartment. The arrangement of a separate boiler room for this model is not necessary - the device can be installed in a bathroom, plumbing unit or another room.

NAVIEN Ace 13K is a boiler designed for aggressive external operating conditions. In this regard, from the point of view of the Russian consumer, this technique simply has no equal. NAVIEN offers a truly unique product that shows its ability to work even at very low temperatures outside the window, even with terrible quality of the coolant, even with unstable power supply. Many buyers from Russia are forced to face such problems. And that is why the NAVIEN 13K model with its advantages is especially valuable for the domestic market.


If you are looking for equipment that would be optimal both in terms of price and quality, then, most likely, after a detailed study of the market, you will come to the conclusion that NAVIEN Ace 13K is the ideal solution for you. Affordable price and technical excellence push eminent European brands off the podium. And the efficiency, which is proved not by documentation, but in practice, makes even specialists who have seen a lot to be surprised at all. Low fuel consumption allows you to save a serious amount throughout the year.

NAVIEN Ace is very easy and cheap to maintain. In the service center, qualified specialists will be able to quickly eliminate any malfunction. At the same time, the cost of repairs will practically not affect your family budget in any way.

Technical and design advantages

This model has a lot of advantages, each of which the potential buyer should read separately. The main advantage of NAVIEN Ace 13K is the presence of a system that prevents the coolant from freezing in the circuit. In the event of an unexpected drop in temperature in the system, the boiler immediately starts the circulation pump, which “drives” the coolant through the pipes. If the water temperature drops to a critical level, the burner will automatically turn on, which will heat the water to a temperature of 21 degrees Celsius.

This plus will be appreciated by those people who live in the northern regions of Russia. This design feature will allow you to enjoy comfort in any climatic conditions and exclude unforeseen "surprises" from your life in the form of ice in the pipes of the heating system.

The modulated turbocharging system is also one of the priority advantages of the Ace 13 model. Each unit is equipped with a furnace with a fan that rotates at a certain frequency depending on the air pressure in the system. In addition, the model has a special sensor that starts the cooler if additional air is needed for more efficient fuel combustion. This design feature helps the gas to burn as efficiently as possible, which significantly increases the efficiency of the entire unit.

Technical features

The rated power of this model is 13 kW. At the same time, the efficiency of NAVIEN Ace 13K reaches 92%. The system consumes 1.33 cubic meters of natural gas per hour or 1.16 kg of LPG per hour. The temperature of the heat carrier in the DHW system ranges from 30-60 degrees, and in the heating system it is 40-80 degrees Celsius.

The performance of the Ace 13K boiler at a coolant temperature of 25 degrees is 12.4 liters per minute. In turn, small dimensions (695x440x265 millimeters) and low weight (28 kg) indicate the ease of installation of the boiler in any conditions and in any premises.

Results

The NAVIEN Ace 13K gas boiler is a universal 2-circuit heating unit, which has become a very successful model of the South Korean brand. Excellent performance and long service life can be safely called among the main advantages of this technique.

Experts recommend calling qualified craftsmen to install the unit. However, if you want to do everything yourself, then the instructions for NAVIEN Ace 13K will become an indispensable assistant for you. In the documentation you will find everything you need for a complete high-quality installation of the boiler and its safe and efficient operation.

This is a double-circuit (heating plus hot water supply) wall-mounted gas boiler with a closed combustion chamber (turbocharged) and a coaxial (combined) smoke exhaust system, designed to organize heating and hot water supply for private, country houses, summer cottages, cottages and administrative premises.

Peculiarities:
  • work on natural gas (main) / li>
  • work on liquefied gas (balloon)
  • frost protection system - if the temperature in the room falls below 5ºC, the circulation pump will automatically turn on and ensure constant circulation of heating water in the system. This ensures the safety of engineering systems at home.
  • stainless steel heat exchanger - compared to copper, it reduces the likelihood of corrosion tenfold, which significantly increases its service life. The efficiency of a stainless steel heat exchanger is much higher than that of copper, which allows you to get much more hot water.
  • due to the use of an APS air pressure sensor, almost complete combustion of gas is achieved, which contributes to its economy.
  • these boilers can operate at low pressure of main gas (from 4 mbar.) and water (up to 0.1 bar).
  • the boiler is not afraid of mains voltage fluctuations (within +/-30%) due to the special protective chip SMPS (Switched-Mode Power Supply) integrated into the control board.
  • the remote control panel contains a temperature sensor, therefore it fully adapts to the heated room, maintaining any temperature that is comfortable for you, while at the same time allowing you to save gas. Remote control with Russian layout
Contents of delivery:

Boilers Navien Deluxe 10K/13K/16K/20K/24K/30K/35K/40K Delivered assembled after functional testing
Package Included:

1. Boiler - 1 pc.
2. Passport -1 pc.
3. User manual - 1 pc.
4. Warranty card 1-pc.
5. Control panel 1 pc.
6. Mounting plate for fixing the boiler - 1 pc.
Included with the mounting plate for fixing the boiler are supplied
- dowel-nail 6 X 55 - 4 pcs.
7. Complete with the control panel are supplied:
- Wall mounting bracket - 1 pc.
- Screw 3 X 45 - 2 pcs.

Features of the Navien Deluxe gas boiler (in detail):

Stable frost protection system When the room temperature drops, the boiler automatically activates the frost protection system. If the temperature of the heating water drops below 10°C, the circulation pump automatically starts, ensuring constant circulation of the heat carrier in the heating system. When the heating water temperature drops below 6°C, the burner automatically turns on and heats the coolant to 21°C.

Safe and stable operation of the boiler with frequent voltage fluctuations in the mains
When the mains voltage fluctuates +/-30% of 230 V, the SMPS (Switched-Mode Power Supply) protection chip on the microprocessor is triggered. At the same time, the boiler works without failures and stops, due to which its service life is extended and breakdowns are prevented.

Ability to use heating and hot water with low inlet gas pressure in the gas pipeline system
The boiler operates stably and safely at a gas pressure of 4 mbar (40 mm of water column).

Ability to use hot water with low incoming water pressure in the plumbing system
The boiler works stably when the incoming water pressure drops to 0.1 bar, so it can be used in residential areas with low water pressure in the water supply system, as well as with frequent pressure drops in the water supply system.


Remote control panel COMPLETE WITH THE BOILER!!!
Russified remote control panel allows not only to save fuel and reduce heating costs, but also to constantly maintain a comfortable temperature, taking into account the characteristics of the room and set the optimal mode for heating domestic water. The remote control is equipped with a liquid crystal display with built-in backlight.

Modulated turbocharging system
The turbo blower installed in the Navien Deluxe / Navien Deluxe Coaxial boilers under the combustion chamber measures the rotation speed using a signal from the APS (Air Pressure System) air pressure sensor. Thus, air is supplied to the combustion chamber of the boiler in an amount proportional to the amount of gas supplied. It is this system of operation of the Navien Deluxe / Navien Deluxe Coaxial boilers, with the installation of a fan under the combustion chamber and the use of an APS sensor, that made it possible to ensure the most complete combustion of gas and minimize heat loss associated with smoke removal. The performance of the Navien Deluxe/Navien Deluxe Coaxial boilers has increased without increasing the amount of gas consumed, and the efficiency of the Navien Deluxe/Navien Deluxe Coaxial boilers with a stainless steel heat exchanger has become the same as for boilers with a copper heat exchanger.

Stainless steel heat exchanger
A heat exchanger made of stainless steel, compared with copper, has a 5-6 times higher resistance to corrosion, which significantly increases its service life. Efficient use of a stainless steel heat exchanger made possible in the Navien Deluxe/Navien Deluxe Coaxial boilers, thanks to the use of a modulated turbocharging system to increase the efficiency of the boiler.
Residents of the Sverdlovsk region and the Perm region, this product is available in installments without overpayment

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I want to buy Wall mounted gas boiler NAVIEN DELUXE- 13K FF (white)

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Payment

We accept payment for goods in various ways:
  • Non-cash payment to the settlement account of the organization (with and without VAT)
  • Payment in cash or by card upon receipt of the goods from the courier
  • Payment by cash or card at the office of the company
Upon receipt of goods paid from the account of a legal entity or individual entrepreneur, a power of attorney for the person receiving the goods is required. You must also have an identity document with you.

Delivery of equipment

We deliver the equipment in any way convenient for you - by trucking companies, by our own motor transport, by rail. We DO NOT deliver equipment by Russian post and Russian Railways luggage department, and we do not transfer equipment to train conductors, bus drivers, etc.


Loads over 5 kg:

  • Delivery in Moscow
    • The cost of delivery in Moscow is 500 rubles. Delivery times and times are agreed upon when ordering.
    • Delivery of bulky goods (for example, kchm boilers) in the Moscow region: delivery to the region is 500 rubles + 30 rubles for each kilometer from the Moscow Ring Road. The cost of delivery depends on the amount of the order and can be free regardless of the distance.
  • Delivery in Kaluga and the region
    • Delivery in Kaluga is free.
    • Delivery to the region is free for the following settlements: Kirov, Baryatino, Mosalsk, Obninsk, Maloyaroslavets. Delivery to other settlements is coordinated with the managers of the Kaluga branch of the company.
  • Delivery to the regions of Russia
    • Delivery to the regions is carried out by trucking companies and own vehicles. Shipment to any trucking company in Moscow - FREE OF CHARGE!
    • Delivery is carried out if possible to your city. If it is impossible to deliver to a certain city, delivery is carried out to the nearest possible. You can also specify a specialized transport company that has a representative office in Moscow and performs cargo transportation to your city - delivery of equipment in Moscow to your trucking company will be free.

Cargo less than 5 kg:
Delivery in Moscow and regions of the Russian Federation

Delivery is carried out by the courier service SDEK according to the scheme "from hand to hand" from Monday to Friday from 10-00 to 18-00. By separate agreement with the operator, delivery can be made at other times, as well as on weekends. Delivery is carried out during the day, or at your request in the first (from 11-00 to 14-00) or second (from 14-00 to 18-00) half of the day. Also, for your convenience, we can offer evening delivery (negotiated with the operator personally).

Payment is made directly to the courier at the time of transfer of the order, if something does not suit you, you can refuse the order partially or completely.

We kindly ask you not to delay the courier at your address for more than 20 minutes. If it is impossible to transfer the order to the recipient within 20 minutes of being at his address, the courier has the right to leave the customer's address to ensure timely delivery of orders to other customers. On the day of delivery, we strongly recommend that you ensure the uninterrupted operation of the contact phone numbers you specified.

30-60 minutes before your visit, the courier will contact you and inform you of the exact time of arrival. Without a preliminary call to the customer, our couriers do not leave at the customer's address.

CDEK (Express Courier Delivery Service) has been on the market for more than 11 years and delivers goods and documents to more than 2,000 cities throughout Russia and the world. The courier service is engaged in express delivery, transportation of goods, delivery of flowers, gifts, mailing around the city.

The client is given the opportunity to track the delivery process on the company's website. CDEK provides services to online stores, including the delivery of goods to the buyer using a specially developed delivery module, as well as the acceptance of cash on delivery.


Payment for the ordered equipment

Payment for the ordered equipment is made in any way convenient for you:

  • For courier delivery (Moscow and Moscow region, Kaluga and Kaluga region) - cash / bank transfer
  • Delivery to the regions by means of transport companies - cashless payments

Mounting

Our company performs a full cycle of installation of the supplied equipment. Professional installation teams are equipped with all the necessary expensive installation and adjustment tools. This allows us to provide equipment installation services at the highest professional level.

When ordering installation in our company, you get a comprehensive turnkey service. We fully complete the estimate for the supply and installation of the facility without the involvement of subcontractors. This allows you to significantly save the budget and get a quality service with clear deadlines for the completion of work.

We have all the necessary licenses and permits for work on gas pipelines and gas-using equipment.

We work with organizations and individuals. One thing remains unchanged everywhere - this is the high quality and professionalism of the work!

Service

Any equipment during operation requires maintenance. Do not postpone maintenance "until the last moment", when the equipment is already on the verge of failure. Repairs, if they can be repaired at all, can be significantly more expensive than service maintenance.

In addition to keeping the equipment in working condition, timely maintenance allows you to maintain the operating parameters of the equipment in an optimal state, and this allows you to save energy. Indeed, in the process of operation, the efficiency of almost any technically complex device will inevitably decrease.

Our company has in equipping service teams the entire arsenal of the necessary equipment and tools for technical maintenance of heating, ventilation, air conditioning systems at the highest professional level.

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Gas
Natural gas consumption max.: 1.40 m3/h LPG consumption max.: 1.16 kg/h
Hot water supply
Hot water flow at ΔT 25°C: 9.2 l/min. Number of circuits: Dual circuit
Product information
Manufacturer: NAVIEN Country of origin: Korea
Design
Combustion chamber: Closed Type of equipment: Wall-mounted boiler
Connections
Gas pipe connection: 1/2" DHW connection: 1/2"
Dimensions and weight
Dimensions, HxWxD: 265x440x695 mm. Weight: 28 kg.
Fuel specifications
Fuel type: Natural gas G20 / LPG G31
Electrical characteristics
Supply voltage: 220 V
Energy characteristics
Efficiency: 91.7% Minimum power: 7 kW Power: 13 kW Heated area: 130 m2

Description

Navien LFA 13K is a high-power floor standing diesel boiler designed for heating and hot water supply of residential premises. Reliable design, extremely low noise level, high performance and simple operating principles are the main advantages of this series, thanks to which they have become so popular in the domestic market.

The equipment of this brand is delivered completely ready for use and does not require time-consuming maintenance. Navien boilers are installed in any convenient place in the house and provide exceptional comfort for solving typical domestic needs.

Distinctive features of the Navien floor standing diesel boiler series: models from the LFA range are equipped with plunger pumps, LST units with gear pumps.

Functional features of the diesel boiler Navien LFA 13K

Reliability and high resource. The body of the boiler is made of steel, which ensures a long service life even with intensive use. The production technology of this steel implies an excellent degree of protection against corrosion, sea water or climates with high humidity. This means that the Navien LFA 13K diesel boiler will be able to work in almost any conditions without failure.

Efficiency. The efficiency of this model is one of the highest in its class and reaches 91%. Thanks to this, the unit is characterized as energy efficient, contributing to rational heating and cost reduction.

Thoughtful functionality. The Navien LFA 13K boiler can be used for low temperature floor heating. Heat exchangers made of stainless steel are resistant to corrosion even when supplying heating water at low temperatures. At the same time, the hot water supply of the house is at the highest level - the boiler always produces exceptionally clean water.

Easy installation and comfortable operation. To connect the pipes, outlets are provided on both sides of the boiler, which greatly simplifies installation. In addition, the Navien LFA 13K diesel boiler has an extremely low level of noise and vibration. The main units of the unit and the most important components are easily replaced if necessary.

The ability to control the boiler remotely using the remote control.

On our website you can buy a floor diesel boiler Navien LFA 13K at an attractive cost and with the possibility of order delivery to any region of Russia.

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.