TOP 12 best gas boilers Navien: rating 2024-2025 and what parameters should wall-mounted and double-circuit models have
Gas boilers from the Korean manufacturer Navien are not inferior in quality and functionality to equipment from leading European brands.
They combine modern design, durable materials and the practicality of heating elements.
The line includes devices that run on natural and liquefied gas.
Boilers differ in power and functionality, so you should familiarize yourself with the selection criteria and features of popular models.
| Place | Name | Price |
|---|---|---|
| TOP 3 best Navien gas boilers in price / quality ratio | ||
| 1 | Navien DELUXE COAXIAL 24K 24 kW | Ask for a price |
| 2 | Navien DELUXE 24K 24 kW | Ask for a price |
| 3 | Navien ATMO 24AN 24 kW | Ask for a price |
| TOP 3 of the best double-circuit gas boilers Navien | ||
| 1 | Navien Deluxe S COAXIAL-16k 16 kW | Ask for a price |
| 2 | Navien DELUXE 40K 40 kW | Ask for a price |
| 3 | Navien DELUXE 16K 16 kW | Ask for a price |
| TOP 3 best wall-mounted gas boilers Navien | ||
| 1 | Navien Deluxe S COAXIAL-13k | Ask for a price |
| 2 | Navien DELUXE PLUS 13K 13 kW | Ask for a price |
| 3 | Navien Deluxe S COAXIAL-24k | Ask for a price |
| TOP 3 best floor standing gas boilers Navien | ||
| 1 | Navien GA 35KN 35 kW | Ask for a price |
| 2 | Navien GST 49 kW | Ask for a price |
| 3 | Navien GST 60KN 60 kW | Ask for a price |
Content
- Rating of the TOP 12 best gas boilers Navien
- How to choose and what to look for?
- The best Navien gas boilers in price / quality ratio
- The best double-circuit gas boilers Navien
- The best wall-mounted gas boilers Navien
- The best floor standing gas boilers Navien
- Types of gas boilers Navien
- How to choose the power of a gas boiler
- Customer Reviews
- Useful video
How to choose and what to look for?
The main parameters for choosing a gas boiler for residential, administrative and industrial premises:
- power - the efficiency of space heating depends on it;
- mounting type – in the brand line there are floor and wall models;
- burner type - devices with a natural chimney of combustion products and are equipped with a closed combustion chamber;
- functional - there is equipment with the ability to connect a boiler to provide hot water;
- additional elements – models are equipped with overheating sensors, screens with information about pressure and temperature, remote controls and a scoreboard with information about the operation of the device.
The reliability of products from this brand is confirmed by numerous customer reviews. When choosing a boiler, it is worth studying the rating of the three popular Navien gas boilers.
Wall mounted equipment designed for rooms up to 240 square meters. 
Differs in high productivity.
Can be used to supply hot water to 2 points. Made in a compact package.
Equipped with corrosion resistant heat exchanger.
Heats water in volumes up to 13.8 l / min at a temperature of 30 - 60 ° C.
The temperature in the heating circuit is up to 8 degrees at a pressure of 3 bar. Consumes resources economically: consumes 2.58 cubic meters per hour. m of natural gas.
Can use liquefied fuel. Combustion products exit through a coaxial chimney with a diameter of 60/100 mm.
Characteristics:
- power - 9 - 24 kW;
- gas consumption: natural - 2.58 cubic meters. m / h, liquefied - 2.15 cubic meters. m/hour;
- coolant temperature - 40 - 80 ° С;
- dimensions - 44x69.5x26.5 cm;
- weight - 28 kg.
pros
- low price;
- Remote Control;
- fast heating;
- hot water organization
Minuses
- increase in pressure to a critical point;
- not suitable for heating systems with antifreeze.
Device for heating objects up to 240.0 sq. m and organization of hot water supply. Equipped 
separate heat exchangers, which is an advantage in hard water.
Powered by 220 V. For stable operation, it is recommended to install a stabilizer.
The model is equipped with a closed combustion chamber for a chimney 60/100. Management is carried out using the remote control.
2.58 cubic meters are consumed. m of gas per hour. The boiler efficiency is 90.5%. The gas pressure does not exceed 25 mbar. 13.8 liters are supplied per minute at a temperature of 25°C.
Characteristics:
- power - 9 - 24 kW;
- gas consumption: natural - 2.58 cubic meters. m / h, liquefied - 2.15 cubic meters. m/hour;
- coolant temperature - 40 - 80 ° С;
- dimensions - 44x69.5x26.5 cm;
- weight - 28 kg.
pros
- acceptable price;
- compact dimensions;
- convenient settings;
- remote control.
Minuses
- noisy work;
- flimsy mount on the valve.
A device with an open combustion chamber, suitable for heating residential and 
production facilities.
An additional function is to provide hot water. Due to the power of 24 kW, it takes a minimum of time to heat the room.
At the same time, fuel consumption is economical - 2.47 cubic meters. m/h, and the pressure does not exceed 18 mbar. Up to 13 liters of water are supplied per minute.
The volume is enough for 2 points. The efficiency of the device is 86%, which guarantees its efficiency.
For safe operation, a system of protection against overheating and gas control is provided.
Characteristics:
- power - 9 - 24 kW;
- gas consumption: natural - 2.47 cubic meters. m / h, liquefied - 2.15 cubic meters. m/hour;
- coolant temperature - 40 - 80 ° С;
- dimensions - 43x72x32 cm;
- weight - 27 kg.
pros
- simple installation;
- convenient settings;
- high quality;
- functionality.
Minuses
- weak control board;
- uneven temperature in the DHW office.
A double-circuit gas boiler not only heats the house, but also heats the water. The option is suitable in the absence of the possibility of connecting to a centralized water supply. The rating presents the best models of this type according to consumers.
A practical and reliable device for heating objects up to 160.0 sq. m. 
Connects to a 220 V network.
Equipped with a closed type combustion chamber. Due to the power of 16 kW, it does its job perfectly.
The advantage is economical fuel consumption - 1.72 cubic meters. m/hour. The maximum thermal load of the model is 24 kW.
The coolant is heated up to 80 °С. Hot water capacity depends on temperature: 25°C - 13.8 l/min, 40°C - 8.6 l/min.
Characteristics:
- power - 8 - 16 kW;
- gas consumption: natural - 1.72 cubic meters. m / h, liquefied - 1.43 cubic meters. m/hour;
- coolant temperature - 40 - 80 ° С;
- dimensions - 40x66.5x25.5 cm;
- weight - 28 kg.
pros
- Beautiful design;
- quality spare parts;
- external management;
- simple service.
Minuses
- noisy work;
- remote control breaks quickly.
Universal equipment for industrial and residential facilities. Effective for 
space heating up to 400.0 sq. m. and for the organization of hot water supply. Due to the weight of 30 kg, installation takes a minimum of time.
It is connected to the mains 220 V. The efficiency is 91.5%. 4.39 cubic meters are consumed per hour. m of natural and 3.58 kg of liquefied fuel.
Nominal gas pressure is 10 - 25 mbar. Up to 22.9 liters of water at a temperature of 25°C at a pressure of up to 8 bar are supplied per minute.
Characteristics:
- power - 14 - 40 kW;
- gas consumption: natural - 4.39 cubic meters. m / h, liquefied - 3.58 kg / h;
- coolant temperature - 40 - 80 ° С;
- dimensions - 44x69.5x26.5 cm;
- weight - 30 kg.
pros
- inexpensive;
- suitable for a private house;
- quickly heats up the room.
Minuses
- high fuel consumption;
- noisy work.
Heating boiler with antifreeze and heating protection system, gas control and others 
sensors that ensure the safety of operation.
Connects to a 220V network. It is possible to use hot water at low pressure.
Power of 16 kW ensures the efficiency of equipment in rooms of 160 sq.m.. The efficiency of the model is 91.2%.
The water in the coolant heats up to 80 degrees within an hour. Gas consumption depends on the type of fuel: natural - 1.72 cubic meters. m / h, liquefied - 1.43 kg / h.
Characteristics:
- power - 9 - 16 kW;
- gas consumption: natural - 1.72 cubic meters. m / hour, liquefied - 1.43 kg / hour;
- coolant temperature - 40 - 80 ° С;
- dimensions - 44x69.5x26.5 cm;
- weight - 28 kg.
pros
- quality assembly;
- compactness;
- stable operation during power outages;
- rapid heating of the room.
Minuses
- noisy;
- external control cannot be connected.
In small rooms, you can install a wall-mounted boiler. It can be single and double-circuit, which allows you to choose a model based on your needs. The rating presents heating equipment with the best characteristics.
Heating boiler with gas burner, equipped with two offices. Has a power of 13 
kW, which makes it effective in rooms up to 130 square meters. The efficiency of the device is 91.2%.
Management occurs with the help of the remote control. Operation information is shown on the display. Fuel consumption is 1.4 cubic meters. m/hour.
The fuel pressure is up to 25 mbar.
Combustion products are discharged through a coaxial chimney with a diameter of 60/100 mm. Hot water capacity depends on temperature: 25°C - 13.8 l/min, 40°C - 8.6 l/min.
Characteristics:
- power - 8 - 13 kW;
- gas consumption: natural - 1.4 cubic meters. m / hour, liquefied - 1.16 kg / hour;
- coolant temperature - 40 - 80 ° С;
- dimensions - 40x65.5x25.5 cm;
- weight - 26 kg.
pros
- compactness;
- durable case;
- convenient management;
- high performance.
Minuses
- flimsy sealing rings;
- loud noise.
Boiler with a closed combustion chamber and a simulated turbocharging system, due to which 
reduced fuel consumption.
Only 1.4 cubic meters are consumed per hour. m of natural and 1.16 kg of liquefied gas.
The device is connected to a 220V network, protected by a system of protection against power surges and frost protection when the water temperature drops below 10°C.
Power of 13 kW provides fast heating of small rooms. You can install a boiler for 8 liters. At a temperature of 25°C, the water supply will be 11.5 liters per minute.
Characteristics:
- power - 7 - 13 kW;
- gas consumption: natural - 1.4 cubic meters. m / hour, liquefied - 1.16 kg / hour;
- coolant temperature - 40 - 80 ° С;
- dimensions - 45x69.5x26.5 cm;
- weight - 28 kg.
pros
- acceptable price;
- effective work;
- remote control;
- DHW organization.
Minuses
- increase in pressure to a critical point;
- difficulties in finding original spare parts.
The equipment is universal, as it is suitable for residential and industrial premises with 
up to 240 sq. m.
It is equipped with a system of protection against freezing and overheating, as well as gas control. The efficiency of the model is 91.4%, which confirms its effectiveness.
The boiler consumes 2.58 cubic meters. m of fuel per hour. Combustion products are removed through a coaxial chimney with a diameter of 60/100 mm.
Water productivity at a temperature of 40 degrees is 8.6 l / min.
Characteristics:
- power - 8 - 24 kW;
- gas consumption: natural - 2.58 cubic meters. m / hour, liquefied - 2.15 kg / hour;
- coolant temperature - 40 - 80 ° С;
- dimensions - 40x65.5x25.5 cm;
- weight - 26 kg.
pros
- compactness;
- quiet work;
- remote control;
- inexpensive.
Minuses
- short cord;
- display does not light up.
A floor boiler is the best option for heating a room from 80 to 800 sq.m. At the same time, the fuel consumption of such equipment is economical. The rating presents the best models according to buyers.
High performance model for space heating up to 350 square meters. 
Equipped with a closed combustion chamber for spent fuel.
It has an efficiency of 91.4%. Equipped with sensors to ensure the safety of operation, including gas control.
Controlled with a remote control. Consumes 3.34 cu. m of fuel per hour. The heat carriers heat up in a short time up to 85 °C.
The hot water output is 12.5 l/min at 40°C.
Characteristics:
- power - 35 kW;
- gas consumption: natural - 3.34 cubic meters. m / h, liquefied - 2.94 kg / h;
- coolant temperature - 40 - 85 ° С;
- dimensions - 40.2x85.6x63.1 cm;
- weight - 26 kg.
pros
- Beautiful design;
- remote control;
- fast heating;
- durable body.
Minuses
- plaque on the heat exchanger;
- noisy.
Multifunctional model for home heating and hot water supply. 
The boiler is connected to a 220 V network.
Consumes 5.5 cubic meters per hour. m of fuel. Suitable for administrative and industrial facilities, as a way to heat a room up to 490 sq.m. in a short time.
Gas pressure does not exceed 25 mbar. The coolant temperature is 40 - 85 °C, and the water capacity is up to 28.1 liters per minute. Management is simple with a remote control.
Operational safety is ensured by sensors against overheating and freezing.
Characteristics:
- power - 49 kW;
- gas consumption: natural - 5.5 cubic meters. m/hour;
- coolant temperature - 40 - 85 ° С;
- dimensions - 49.1x90.6x76.4 cm;
- weight - 84 kg.
pros
- low price;
- Remote Control;
- high power.
Minuses
- heavy;
- noisy.
Powerful equipment for space heating up to 600 square meters. 
Made of stainless steel and equipped with high-quality heat exchangers, which guarantees a long service life.
The efficiency is 90%.
The boiler consumes 6.5 cubic meters per hour. m of natural gas.
The use of liquefied fuel is not provided. The coolant is heated up to 85 °C. Hot water performance is high - up to 34.4 liters per minute.
Characteristics:
- power - 60 kW;
- gas consumption: natural - 6.5 cubic meters. m/hour;
- coolant temperature - 40 - 85 ° С;
- dimensions - 49.1x90.6x76.4 cm;
- weight - 94 kg.
pros
- quality materials;
- simple operation;
- does its job well.
Minuses
- an expansion tank cannot be connected;
- cools down quickly when the power goes out.
Boilers from the Navien brand are classified according to the following criteria:
- Number of circuits. Odokonturny are intended for heating of rooms. They are installed if it is possible to connect to a centralized water supply system. Double-circuit is designed to provide hot water and simultaneous heating of objects.
- type of instalation. Boilers are installed on the floor and on the wall. The difference between them is in terms of power and dimensions. Floor mounted units are used for heating large areas.
- Camera design. For models with open chambers, combustion is carried out when air enters, therefore, high-quality ventilation is necessary. For devices with a closed chamber, combustion products are forced out.
How to choose the power of a gas boiler
If the thermal power of the equipment is 20 kW, then it is effective for heating rooms up to 200 m2.
It is worth considering the need for connecting hot water. In this case, an increase in the indicator by about 30% is necessary.
Customer Reviews
Useful video
From the video you will get acquainted with the review of the Navien gas boiler:
