Double-circuit gas boiler Navien. Heating boilers Navien. The device of double-circuit gas boilers brand Navien

Offered by our stores today is very wide. Choosing the most suitable model in terms of reliability and quality at the lowest price is a very difficult task. Among the manufacturers of such equipment, the South Korean company Navien is not the last. To give the potential buyer the necessary information about what the Navien gas boiler is, and is the purpose of this article.

What is the principle of operation of Navien boilers

The operation of Navien boilers is based on the same principles as those of similar devices from other manufacturers.

Composition and types of boilers

The structure of each such device includes the following main components:

  • gas stove;
  • gas supply control mechanism;
  • heat exchange device.

In the modification, hot water immediately enters the heating system of the house. models incorporate an additional water heating circuit for the hot water supply system at home (DHW). When this circuit is activated, the heating system is suspended.

Exhaust gas removal

Gas combustion chambers in boilers are open (atmospheric) and closed (). In atmospheric models, smoke leaves the room on its own through the chimney. For turbines, exhaust gases are removed by means of a fan forcibly through a pipe through the outer wall of the house.

Important! In rooms where a gas boiler is installed, permanent exhaust ventilation is required. This is especially important for atmospheric models.

Gas-burners

One of the main components of a gas boiler is, of course, a gas burner. As a rule, modern models are equipped with modulating burners. They allow you to modulate the flame, controlling the gas supply, depending on the need to adjust the temperature of the air in the premises or the water in the DHW system. When equipping the device with an automatically controlled modulating burner, the heating system will accurately maintain the set temperature.

Control and protection systems

When there is a power outage, the gas boiler stops working, when electricity appears, it starts automatically.

In the event of a gas supply interruption, the automation will close the solenoid valve, which will block the possibility of fuel entering the device. In such situations, it is only possible to open the gas supply to the boiler manually.

Modern models have the ability to save energy and protect against freezing. The water temperature is controlled by sensors that automatically turn on the heating of the coolant when its temperature drops to the set value.

Most gas devices, including the Navien wall-mounted gas boiler, include self-diagnosis systems. These systems monitor the operation of all nodes and display on the scoreboard, with the help of codes, information about the problems that have arisen.

Specifications from the technical side

In our market, Navien offers double-circuit wall-mounted gas boilers with the following characteristics:

  1. Combustion chambers of any type - both open and closed.
  2. The power range of the manufactured devices allows you to heat rooms ranging from 30 to 400 square meters. m.
  3. Double-circuit modification makes it possible to heat water for the DHW system.
  4. Heat exchangers are made of stainless steel.
  5. Both liquefied and natural gas can be used to operate boilers.
  6. The amount of water produced for the DHW system is determined by the capacity of the device. For example, a 13 kW device produces water in a volume of up to 11 liters per minute, and with a power of 30 kW - about 17.
  7. The electronic control unit has the function of protecting the device from power surges.
  8. Most models of heating boilers are equipped with a remote control unit with the following features:
    • the unit displays data on the set values ​​of the temperature of heating water, hot water in the DHW system and indoor air;
    • the display shows information about the problems that have arisen in the operation of the nodes;
    • the buttons on the block turn the boiler on and off, set the temperature mode;
    • the built-in air temperature sensor provides information for regulating the gas burner.

Each Nevien gas boiler is supplied with an instruction manual that describes in detail the rules for working with the control unit. There are also more detailed technical characteristics of the device.

Mounting Features

Before buying a gas boiler, you must:

  1. Prepare a place for installation. Atmospheric apparatus requires a separate room, at least 2x2 m in size, with exhaust ventilation.
  2. The device must be powered from a stabilizer connected to a circuit breaker or a socket that has an emergency shutdown capability.
  3. The boiler body must be grounded, so you need to bring a ground wire to the installation site.
  4. The wall where the device will hang, if it is flammable, must be sheathed with non-combustible material.

After purchasing the boiler, it is not an easy task to connect it. The factory instruction manual recommends that a specialist from an authorized service center be involved for this.

But if you have the skills to work with pipes and taps, you can try to hang it on the wall and connect the device yourself. The factory manual says it all in detail.

But do not forget that in any case, you will need to call a gas service specialist to conclude a service contract and obtain a special permit for the operation of gas equipment.

Important! Unauthorized connection of gas to the boiler threatens with penalties and even criminal liability.

Advantages and disadvantages of Navien boilers

A careful study of the models of different companies allows us to conclude that the Navien gas boiler has many advantages over competitors' products. Namely:

  • good quality at a relatively low price;
  • a large number of service centers for their maintenance;
  • strict quality control mechanisms are in place at the company's enterprises;
  • heat exchangers are made of high quality stainless steel, which ensures their long service life;
  • the presence of an air temperature sensor built into the remote control unit;
  • protection against power surges;
  • a very large selection of models;
  • cheap spare parts.

Disadvantages are much less:

  1. noises and thuds at work;
  2. Only branded spare parts are suitable for replacing failed parts.

One of the important points for the owners of a private house is the arrangement of the heating system and the provision of housing with a constant supply of hot water. The best solution to this issue is to install a double-circuit one, which is able to simultaneously heat the room and heat the water.

On the market, such boilers are presented in a wide range from different manufacturers. In turn, each company has its own model range, which further complicates the choice. The Korean company Navien supplies gas boilers to the Russian market, which are highly competitive due to their high technical characteristics, build quality and operational reliability.

The device and principle of operation of Navien boilers

The design consists of many individual parts and assemblies. Therefore, before choosing the necessary model, you should familiarize yourself with its device and the principle of operation. The heating equipment of the South Korean manufacturer does not differ from German, Italian and other European analogues by the introduction of unique components or the use of individual developments. It is available only in a wall-mounted version and consists of the following main components:

  • Frame. It is made of two parts. The back wall, on which there are elements for installing and fixing the components of the device and mounting holes for mounting to the wall. The front cover functions as a protective cover. It has a window for a pressure gauge and equipment controls.
  • Water circuit. This assembly includes several pipes: for supplying cold water, the outlet of the heating liquid (coolant) from the boiler to the heating system supply, the return inlet from the heating circuit, the outlet for connecting the hot pipeline. The water line wiring inside the device is made of stainless steel. To circulate the coolant, a circulation tank is connected to the water circuit, the excess pressure is compensated by the presence of a membrane-type expansion tank.

Attention! Navien equips its gas boilers with components that are manufactured at the company's facilities. Due to this approach, the cost of production is several times lower compared to European counterparts, in which nodes from different manufacturers are installed.


The principle of operation of the equipment is the same as in all analogues. The control system sets the desired temperature for the heating circuit and hot water. The heat carrier is heated in the main heat exchanger. With the help of a circulation pump, it moves through the internal pipeline to the coil, which provides heating for the hot pipeline and further to the heating system.

Advice. Heat exchangers made of stainless steel have a longer service life than conventional steel or bithermic versions.

Model range of Navien boilers

The Korean manufacturer produces two modifications of its products:

  • Atmospheric - the removal of combustion products and the flow of air occurs due to natural ventilation. In such boilers, an open combustion chamber is provided.
  • Turbocharged - removal of exhaust gases and air injection is carried out by an installed supply and exhaust fan. In these models, the chimney is made in two variations: coaxial and separate. In the first version, the exhaust pipe is located inside the supply pipeline.

All models of boilers are manufactured with different power from 10 to 40 kW and are able to heat an area from 30 to 400 sq.m. When water is heated to a temperature of 25 °C, the productivity of the equipment is 7 - 23 l / min, up to 40 ° C from 4 to 14 l / min. The installed automation allows you to take hot water at several points at the same time and at the same time maintain the set temperature.

In the domestic market, Navien products are represented by two brands Deluxe and Ace. The marking of the models indicates its power - a digital designation in kW. Turbocharged modifications have a letter designation of the type of chimney: E - Euro means coaxial, K - Korean version, i.e. separate. Options with an open combustion chamber in the marking are indicated by the index A - atmospheric.

Attention! The electronic control of the equipment is equipped with a protective chip that is able to compensate for voltage drops and surges in power lines up to 30%. A similar technology is used in the boilers of the German manufacturer Vailant.

Navien equips its products with an air temperature sensor. Unlike European counterparts, where it is an additional option, the Korean manufacturer included it in the basic package. Almost all boiler models are equipped with a remote-type control system, with the exception of Navien Prime and Navien Deluxe Plus, which have integrated control.

The main advantages and disadvantages of heating equipment

Boilers of the Korean manufacturer have their advantages and disadvantages. Among the advantages are the following:

  • two separate stainless steel heat exchangers;
  • electronics protection sensor;
  • air temperature control sensor;
  • the optimal combination of price / quality;
  • wide range of colors;
  • cheap repair.

Disadvantages:

  • relatively high noise level;
  • Only original parts are used for repairs.

Gas boilers manufactured by the Korean company Navien are an alternative replacement and a worthy analogue of this equipment manufactured by European brands. Numerous positive customer reviews testify to the high quality, reliability and stable operation of the heating device.

Gas boiler Navien 24: video review

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

Turbocharged boilers Navien Deluxe Coaxial

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

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

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

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

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

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

Turbocharged boilers Navien Ace Turbo Korea

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

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

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

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

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

Condensing boilers Navien NCN

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

The boiler comes with a remote control.

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

Useful options:

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

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

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

Atmospheric boilers Navien Ace Atmo

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

Gas boiler Navien 24 kW specifications:

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

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

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 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.:

(( reviewsOverall )) / 5 Owner rating (7 votes)

Your opinion

0"> Sort by: Most Recent Highest Score Most Helpful Worst Rated

Be the first one to leave a review.

Navien are functional and durable.

When choosing a heating boiler for a private house or an autonomous heating system for an apartment, a person first of all pays attention to the functionality of the equipment and its performance. The second selection criterion is durability, the availability of warranty service. And last, but no less significant, is the appearance of the device, its “tuning” and dimensions. If we trace the recent turnover of heating elements in the domestic market, we can conclude that buyers prefer European products.

However, this trend is not permanent. Indeed, in recent years, the Korean company Navien has declared itself quite loudly, and Navien gas boilers are able to compete with any European manufacturer.

Advice! The Navien Ace wall-mounted double-circuit gas boiler is especially popular.

This device is equipped with an open or closed combustion chamber, its functional part is durable. At the same time, the price of this equipment is lower compared to European counterparts, which is the key to the popularity of Navien products.

Characteristics of the Navien Ace range of wall-mounted heaters

A wall-mounted, double-circuit gas heating device from the manufacturer Navien, belonging to the Ace line, is represented by the following models: Navien Ace ATMO, Navien Ace TURBO. At the same time, the latest model is presented on the market in two modifications - Korea and Coaxial.

The Navien Ace wall-mounted boiler, regardless of modification, has a power of 13 kW to 40 kW, which allows you to place equipment from this manufacturer in rooms of various sizes.

Features and characteristics of Navien Ace TURBO

The Navien Ace gas wall-mounted boiler can be placed in rooms of any size.

The manufacturer claims that Navien Ace TURBO boilers are ideal for domestic use. They can operate at reduced gas pressure in pipes, significant power surges, retain their functionality even when they are not turned on for a long time and the coolant in the heating system begins to cool.

In addition, wall-mounted double-circuit heating elements, Navien Ace TURBO have other characteristics:

  1. this is a two-circuit unit, that is, it is suitable for space heating, and for preparing hot water for domestic purposes;
  2. the double-circuit heating device has a steel heat exchanger with a protective anti-corrosion coating. It is several times lower in cost compared to copper counterparts. And the insufficient power of the boiler due to the reduced thermal conductivity of steel is compensated by the turbocharging of the gas burner. Today, Navien Ace TURBO can compete in power with devices that have a copper heat exchanger;
  3. This gas wall-mounted heating element ensures that the coolant in the heating system does not freeze. So, when the temperature of the water in the heating system drops to + 10 ° C, the boilers immediately turn on the circulation pump. It, distilling water through the heating system, does not allow ice crystals to form. If the temperature of the coolant drops below +6 ° C, the gas burner is already turned on here. It heats the water in the heating system up to +21°C;
  4. Navien Ace TURBO gas heating units are characterized by economical energy consumption. This is due to the synchronous operation of the turbocharging system and the APS (Air Pressure System) air pressure sensor. The boilers, using a pressure sensor, control the rotation speed of the fan under the burner, thereby the gas is mixed with air in the optimal proportion, which allows the energy carrier to be completely oxidized. Consequently, the efficiency of the equipment increases, but the gas consumption does not increase;
  5. these boilers are characterized by a long service life, due to the reduction in the number of on / off cycles in case of voltage drops in the mains and low water pressure in the system. So, double-circuit boilers will continue to work if the voltage drops by 30% of 230 V. They will not turn off if the water pressure is 0.1 bar, which is important for houses with autonomous water supply.

Double-circuit boilers Navien have two modifications. The Navien Ace TURBO Coaxial gas unit has a coaxial chimney. It is useful for those rooms in which it is difficult to provide air flow for the boiler. That is, a coaxial chimney draws air for the combustion reaction from outside the building. Korea boilers take air from the room. They work silently.

Features and characteristics of Navien Ace ATMO

Navien Ace ATMO gas boilers work even at low voltage.

Navien has developed double-circuit heating boilers that run on gas, but with an open combustion chamber, that is, without turbocharging. These are Navien Ace ATMO boilers. They are characterized by the same functionality as for turbocharged models. This is an adaptation to domestic operating conditions.

These heating boilers have the same chip, which ensures their constant operation at low voltage in the mains and system pressure. Gas equipment is equipped with a steel heat exchanger. A double-circuit boiler makes it possible to prepare hot water for domestic needs. However, the open combustion chamber ensures quiet operation, unlike turbocharged boilers.

Navien Ace gas units - their advantages over expensive European models

Navien Ace gas wall-mounted boilers are affordable.

The first thing that attracts buyers to Navien products is the affordability of the price. But can a low cost speak of poor quality, because gas heating units are bought for more than one year. The manufacturer claims not. Their boilers are distinguished by their functionality and durability, and the low cost is ensured by the structural features of the equipment for the heating system.

Steel heat exchanger - makes boilers cheap. After all, steel is several times cheaper than copper. And the durability of the steel heat exchanger provides an anti-corrosion coating. At the same time, the heat exchanger consists of two parts, that is, if one part is clogged or broken, it is not necessary to change the part completely.

Advice! European heating boilers operate in the range of voltage surges of 20 V, when Navien Ace gas unit models do not stop functioning with a voltage surge of 30% in both directions. That is, the boiler in the second case is switched off less, which prolongs its service life and reduces gas consumption.

The gas double-circuit boiler Navien has a remote control with a remote sensor.

A gas heating unit from this manufacturer, even with a rated power of 13 kW, will heat the same volume of water as the boiler, with a power of 24 kW. And this is a direct saving on energy consumption. It's all about the control system of the gas burner.

When the consumer turns on the hot water tap, the boiler, which previously produced 13 kW, now increases it to 24 kW. That is, it also heats hot water, at the same time it does not disregard the heating system. In the house, the air temperature remains at the same level.

Like expensive European models, Navien boilers have a remote control with a remote sensor and a liquid crystal display. However, in the first case, the equipment is more expensive, the second option is of Japanese origin, which ensures affordability and durability. The temperature sensor reacts to changes in the atmosphere, sends commands to the burner, which, in turn, either increases or decreases the power of its work. Which also helps to reduce gas consumption if the temperature rises outside.

Fitting © 2022 Design and interior of apartments