The optimal solution for organizing autonomous heating is to install your own boiler.
The choice of such installations is wide; there are samples that operate on various types of fuel and are capable of serving premises of one size or another.
The most successful performance characteristics are demonstrated by gas boilers, which are economical and efficient.
European manufacturers offer a fairly wide selection of units, but their cost makes you think about looking for more affordable analogues.
One of the optimal solutions is gas boilers produced by Navien.
Information about the manufacturer Navien
The company has been operating on the market since 1978, when it was still called Kyung Dong Mechanics. Today, Navien provides comfortable temperatures in residential and industrial spaces by producing air conditioners, fans and, of course, water heaters and gas boilers.
The Korean organization exports its goods across the globe, including:
- Russia,
- USA,
- Japan,
- China and European countries.
Navien has its own representative office in the Russian Federation, thanks to which it has achieved full adaptation to our market. The equipment works with unstable gas and water pressure, and can also correct voltage fluctuations in the network. All this makes Korean products the best choice on the domestic market.
Where is it used?
Gas double-circuit boilers Navien Ace series are designed for organizing heating and hot water supply of residential premises or offices of the appropriate area.
This limits the scope of use of these units, although they can be installed in any premises. The main task is to ensure that the serviced area matches the capabilities of the equipment and the availability of all the necessary resources - gas, electricity and water (coolant).
NOTE!
In addition to the area, it is necessary to take into account the volume of the room, which may be too large for this Navien boiler model. The product passport indicates the maximum volume possible for the normal functioning of the system.
Construction of Navien gas boilers
The operating principle of the product is no different from that of other companies. The basic equipment consists of the following parts:
- Gas-burner;
- Circulation pump;
- Gas supply regulator;
- Heat exchanger.
Double-circuit devices boast two heat exchangers at once, one of which is for heating water, and the second for heating the coolant. The pipeline ensures an uninterrupted supply of gas to the device pipes.
The fuel burns and releases heat, which heats the water. The hot coolant is sent to the heating system, warming up the radiators and pipes.
The Korean technology is equipped with a smart electronic unit that monitors the temperature of the coolant and turns the burner on and off in time.
Operating principle
Combustion of fuel contributes to heating of the coolant in the primary heat exchanger.
The circulation pump ensures the movement of water through the system, constantly supplying new portions of the cooled flow to replace the heated one.
The three-way valve regulates the temperature by mixing a certain amount of cold coolant into the flow with the maximum degree of heating, resulting in the formation of a given temperature in the system.
Fuel combustion is supported and enhanced by the air flow supplied by the turbocharger fan.
All work is constantly monitored by appropriate sensors that transmit signals to the control board, which interacts with the remote control.
Types of gas boilers Navien
The organization covered all possible types of designs so that the end consumer could choose a model exclusively for their needs. That is why units can differ significantly from each other, which affects both the features of the initial installation and the further use of the equipment.
There is the following classification:
- By installation method;
- By the number of circuits;
- By function.
We will analyze each type in more detail so that everyone can choose the best option for their room.
Navien boiler installation method
The simplest, but one of the most important differences is the installation method. They differ in wall-mounted and floor-mounted. Wall-mounted ones are generally quite small in size, so they can be hung on vertical surfaces, for example, on a bathroom wall.
Due to their small dimensions, such units are often chosen for apartments, while floor units are installed in private homes. Floor standing ones are better suited for homes due to their large size and weight.
Usually these devices are placed in a separate room - in the boiler room, where such a large thing will not interfere. The marking of such products uses the letter “N”.
Functional
The manufacturer has created several product lines that differ greatly in the available functions:
- Prime. The most complete and expensive package. By purchasing products from this line, the consumer receives not only the most modern and reliable means of heating a home, but also the most convenient. Important information is shown on the liquid crystal display, boiler power from 13 to 35 kW.
- Deluxe. Most of the functions of the previous line were retained, but this series eliminated the display. There is an air pressure sensor, with which the air flow is controlled and thereby the boiler parameters are optimized. Devices with power from 10 to 40 kW are available.
- Ace. The most popular series due to its price-quality ratio. There is nothing superfluous in this product line, only the most necessary innovative technologies to control the optimal room temperature.
- Steel (GA/GST). Products with different numbers of circuits. The power of the products varies from 11 to 40 kW. The most durable materials are used in production, including stainless steel.
- SmartTok. A smart line of the 21st century for the most advanced users. This series is controlled using a smartphone, so you can control the devices remotely. You can also control it by voice or in the classical way. It is possible to install a special outside temperature sensor.
Condensation models
A modern series, distinguished by a special assembly that demonstrates the highest performance indicators. Due to their design, these heating devices use condensate, previously collected in a heat exchanger and highly heated.
These boilers use a third less fuel and also reduce harmful emissions by up to 70 percent. These innovative boilers are marked with the NCN symbol.
What's included
The unit components include the following elements:
- Heat exchangers (primary and secondary, the primary can be made of copper or stainless steel, the secondary can only be made of stainless steel).
- Remote control panel.
- Circulation pump.
- Expansion tank.
- Three way valve.
- Safety valve.
- Traction sensor.
- Automatic air vent.
- Connecting pipelines, other structural elements.
In addition to the main elements, the boilers are equipped with mounting brackets and other additional parts.
Atmospheric models
An important feature of this type is the increased safety and performance of the products - they are able to function properly even during serious fluctuations in gas pressure. The devices are supplied with an open combustion chamber.
- Due to their type, these Navien products must be connected to a chimney with a draft capable of eliminating combustion products.
- The units are capable of accelerating the coolant temperature to +80 degrees Celsius, and the water temperature to +60.
They can operate on both natural gas and liquefied gas, which will allow the equipment to be used even by those who are far from gas mains. The markings indicate "ATMO".
Price range
Prices for gas double-circuit boilers Navien Ace range from 26 thousand rubles. (Navien Ace 13K Atmo), up to 32 thousand rubles. (Navien Ace-24K Turbo). It is necessary to take into account that these amounts constitute only the cost of the boiler itself, without delivery, installation, warranty agreement and other additional costs.
Stores only carry out sales, and warranty repairs and maintenance are carried out by service centers, an agreement with which is concluded and paid separately. Many buyers believe that the warranty is automatic upon purchase, but this is a misconception .
NOTE!
The Ace series has been discontinued. It is still possible to purchase such units, since a lot of them were brought to the regions of Russia. But the possibility of warranty service must be clarified immediately, otherwise you may find yourself in an unpleasant situation.
Turbocharged models
This line not only monitors pressure fluctuations in gas pipelines, like the previous one, but is also resistant to sudden surges in power supply voltage. This is achieved thanks to the smart SMPS chip. Turbocharged boilers have a closed combustion chamber.
The equipment comes with different chimneys:
- With separate. In such devices there are two pipes, one for supplying air, the other for eliminating combustion products. In the marking you should pay attention to the letter “K”.
- With coaxial. The design provides two pipes installed inside each other, due to which the outer one supplies oxygen to the combustion chamber of the products, and the inner one removes these products. In the marking o.
Connection instructions
Installing the boiler is not difficult - you just need to install anchor bolts and hang the unit on the wall.
It is recommended to install elastic gaskets between the housing and the wall to dampen noise. Do not install the equipment on fragile or weak structures - plasterboard partitions or other similar surfaces.
You need a solid brick or concrete wall that can support the weight of the boiler (about 30 kg).
Communications should be connected to the appropriate pipes. It is necessary to carefully monitor the compliance and tightness of connections.
The main attention should be paid to connecting gas pipes. Check all connections for leaks using a soapy solution.
If there is a common chimney, separate pipeline connections are used - the air channel is led out into the street through the wall, and the smoke channel is connected to the common chimney of the house.
Coaxial chimneys are led outside through the wall, which is much simpler and more convenient for installation.
Download instructions
You can download the instructions here.
Advantages and disadvantages
Like any other company, Navien products have a huge number of advantages:
- Resistance to voltage surges, which is achieved using a special chip. With it, the creations of the Koreans will work even with network fluctuations ranging from 165 to 300 Volts;
- Ease of operation, the ability to control some models by voice and using a mobile phone over a long distance;
- Small dimensions of the devices, thanks to which they can easily be placed even in the smallest apartment or boiler room in a private house;
- Low cost of operation;
- Automated operation, the ability to program the operating mode in advance;
- Long service life with necessary maintenance;
- Excellent quality to price ratio;
- High heating rate of the heating circuit;
- Diagnostic function, which itself determines errors and breakdowns of the model;
- Caring for the environment.
Minor disadvantages include the following:
- Energy dependence;
- Connection to only one hot water tap;
- Noise during operation;
- The need to protect electronics during thunderstorms;
- Difficult repair due to the fact that only original Korean parts can be installed, since there are simply no analogues;
In the event of a breakdown, you must contact the repair service, because you cannot repair a gas boiler yourself.
Advantages
The brand positions its heating equipment as optimal according to the price-quality formula. Navien boilers can be used for heating a private house, apartment, or industrial premises. Their advantages:
- Resistant to voltage surges. Its surges often lead to equipment failure. The Koreans have provided reliable protection - they have installed a Switched-Mode Power Supply control chip - it expands the voltage range to 165-300 V.
- Resistant to low gas pressure. Many modifications refuse to work because of this, but not Navien - they continue to work at the lowest values.
- Pleasant, ergonomic design.
- Any Navien boiler is double-circuit. This means that, in addition to heating, its owner receives an addition in the form of hot water supply.
- A wide range of powers is offered - you can choose an option for any room.
- Equipment owners can always get professional help at the service center. Contact details can be found in the attached documentation.
The most popular boiler models
The organization has provided a wide selection of different models, so it can be difficult for a beginner to figure it out right away.
Let's look at the most popular options that regularly earn positive reviews:
- Navien SMART TOK 24K. Convection unit with a wide range of functions. It can handle an area of up to 240 square meters. Thermal power from 8 to 24 kW. Uses both natural gas (consumption - 2.79 cubic meters per hour) and liquefied gas (2.15 kg per hour). The kit comes with a remote control and LCD display. It is also possible to control from a smartphone. Weight – 28 kg. You can connect a coaxial or separate chimney.
- Navien DELUXE COAXIAL 16K. A model with two circuits, which is suitable for heating a house up to 160 square meters. The efficiency of the device is 91.2 percent. Thermal power from 9 to 16 kW. Operates on natural gas (consumption - 1.72 cubic meters per hour) or liquefied gas (1.43 kg per hour). The maximum available heating of the coolant is up to +80 degrees Celsius, heating of water up to +60. Includes remote control and display. Weight – 28 kg. Installed on the wall.
- Navien DELUXE 13K. Convection unit for wall installation. Heats houses up to 130 square meters. Electronic control, remote control included, closed combustion chamber, power from 7 to 13 kW. Consumption is either 1.4 cubic meters per hour if it is natural gas, or 1.16 kg per hour if it is liquefied gas. Heating of coolant up to 80 degrees Celsius, water up to 60.
The most common problems
Often the causes of problems are low quality coolant or gas. Error codes help you solve problems. Here are the most common malfunctions that can occur with Korean gas equipment:
- Overheating.
- No flame signal.
- The fan is faulty.
- Damage to the control board.
- Short circuit in the flow sensor circuit.
How to choose a Navien gas boiler
The correct choice of model can be made only when all the needs and goals of the future purchase are clear. If there is a need for hot water, you should buy a double-circuit unit, but if you only need to heat the house and nothing else, you should choose a single-circuit option.
- You need to decide where to install the equipment.
- If there is a separate room for arranging a boiler room, then it is worth buying a floor-standing type.
- Otherwise, you will have to opt for the wall-mounted option.
- It is necessary to calculate the area of the heated room in order to select the appropriate power.
After that, all that remains is to choose the design you like and answer whether you need a liquid crystal screen, a remote control, or control from a mobile phone.
Installation Features
The products are equipped with protection against power surges, but it is still worth providing stabilizers. This is especially true in case of frequent network failures and deviations from the normal value.
It is also necessary to ground the boiler body. Finally, if the model is mounted on a wall, then the surface must be sheathed with non-flammable material.
The device can be independently connected to the water supply system and heating circuit, but the gas supply must be made with a representative of the gas service.
Operation of Navien boilers
The simplest and most important thing you can do for proper operation of the equipment is to read the instructions. The manufacturer described in detail all the subtleties and rules of installation, connection and operation.
Different models of equipment are significantly different from each other, which means their instruction manuals are also different, so they should be studied in detail and saved just in case.
