Overview of Danko boilers with advantages and main faults

The right boiler is essential for maintaining a warm and comfortable home. Danko boilers are distinguished from the many other options by their special features and effectiveness. In this piece, we’ll examine Danko boilers in more detail, discussing their benefits and pointing out a few common issues.

Danko boilers are becoming more and more popular among homeowners because of their dependability and efficiency in heating buildings. Because of their strong build and creative design, these boilers are renowned for providing the best possible heat distribution throughout the house. Danko boilers come in a range of sizes to suit your heating needs, whether you live in a large family home or a tiny apartment.

Danko boilers’ energy efficiency is one of their main benefits. These boilers’ long-term cost savings on energy bills come from their design, which maximizes heat output while consuming the least amount of fuel. Purchasing an energy-efficient boiler like Danko can have a big impact on the environment and your pocketbook, especially in light of the rising cost of energy and growing environmental concerns.

Danko boilers are also commended for their dependability and minimal upkeep needs. Danko boilers are made with premium components and cutting-edge technology, meaning they require little maintenance and years of dependable service. Because of this, they are an affordable option for homeowners seeking a hassle-free heating system.

Nevertheless, Danko boilers have issues just like any other heating system. Although they are usually dependable, a few users have complained about problems like sporadic leaks or control system malfunctions. These errors can be annoying to deal with and may need to be fixed by professionals. Furthermore, compared to alternative options, the initial cost of buying and installing a Danko boiler may be higher; however, many homeowners discover that the long-term savings outweigh the initial outlay.

In conclusion, Danko boilers’ effective operation and sturdy design make them an appealing option for insulation and heating needs. For many homeowners, the advantages of them outweigh the disadvantages, despite possible downsides. When selecting the best heating system for your house, you can make an informed choice if you are aware of Danko boiler benefits and potential drawbacks.

About the manufacturer

The Ukrainian business PJSC "Agroresurs," which also manufactures heating equipment under several brands, is the owner of the "Danko" brand. Danko boilers are produced using imported machinery from Denmark, Finland, and Japan. As a result, manufactured goods now have much higher operational quality and are more dependable and long-lasting.

Modern assembly and metalworking equipment, as well as a powder coating line, are used in the production of boiler equipment.

Automation is used in the great majority of technological processes. Every boiler unit has an efficiency of more than 88%. The assortment set has been modified to include a cast-iron heat exchanger with a service life exceeding 25 years.

The affordability of the kit, dependability, and market availability of spare parts are among the benefits offered to users of such units.

In practice, many units operate for more than 15 years. Models with high efficiency up to 20 kW are defined by their low fuel consumption, which ranges from 0.8 to 1.7 m3 of gas per hour.

However, there are drawbacks to the unit as well. Customers bemoan the poor quality of assembly. Automatic systems of today do not come in cheap kits.

Compared to their Western counterparts, assemblers address more complicated assembly procedures, integration with the home heating system, and higher background noise levels during boiler operation. Online reviews claim that Danko two-circuit models with high DHW water intake levels don’t always provide the required heating rate.

The official site, where you can see all models and factory instructions

The official representative of the company is Organization LLC TD "Finist" located in Taganrog. You can familiarize yourself with the boiler models on Danko.rf. The heating boilers "Danko", "Danko-Breeze", and "OK" are available in Russia and have been certified in compliance with Russian Federation standards.

The company’s official website in Ukraine is danko.ua. You can acquaint yourself with the latest boiler modifications, features, and user feedback online.

The factory handbook and boiler strapping schemes can be downloaded, and you can schedule meetings with the company’s top managers.

The most reliable models with prices and technical characteristics

More than 300 different types of heating boilers, ranging in heat output from 2 to 1000 kW, are included in the assortment set and are installed for independent heating:

  • natural/liquefied gas, solid fuel and pellets, electricity;
  • open and closed;
  • single-circuit and double-circuit;
  • with natural and forced circulation;
  • floor standing boiler;
  • heat exchanger metal: steel, cast iron and copper.
  • micro-flare burners made of heat-resistant non-corrosive steel.

Every unit has an automated safety complex installed.

  • HONEYWELL – Netherlands;
  • SIT – Italy;
  • KARE – Poland.

The top 150 m2 solid fuel boilers:

  • DANKO-12 SMR, power 12 kW, efficiency 91.5%, open combustion chamber, steel heat exchanger, mechanical control, centrifugal pump, price – 21 219 rubles.
  • DANKO-20VSR, capacity 20 kW, efficiency 92%, open combustion chamber, steel heat exchanger, mechanical control, centrifugal pump, price – 32 685 rubles.
  • OK-18V, power 18 kW, efficiency 90.5%, open combustion chamber, steel heat exchanger, centrifugal pump, electronic control, price – 27 172 rub.

Well-liked Danko gas-fueled boilers for heating spaces between 150 and 500 m2:

  • DANKO-16LS, power 16 kW, efficiency 90%.0%, open combustion chamber, cast iron heat exchanger, centrifugal pump, mechanical control, price – 38 001 rubles.
  • DANKO-25LC, power 25 kW, efficiency 90.0%, open combustion chamber, cast iron heat exchanger, centrifugal pump, mechanical control, price – 47,531 rubles.
  • DANKO-33LC, capacity 33 kW, efficiency 90.0%, open combustion chamber, cast-iron heat exchanger, centrifugal pump, mechanical control, price – 60 238 rubles.
  • DANKO-41LC, power 33 kW, efficiency 90.0%, open combustion chamber, cast iron heat exchanger, centrifugal pump, mechanical control, price – 68,814 rubles.
  • DANKO-50LC, power 50 kW, efficiency 90.0%, open combustion chamber, cast iron heat exchanger, centrifugal pump, mechanical control, price – 85 492 rubles.

Danko pellet boiler characteristics for heated areas between 150 and 1500 m³:

  • DANKO-150 TEM, power 150 kW, efficiency 88.0%, fuel supply, steel heat exchanger, centrifugal pump, mechanical control, price – 330 400 rub.
  • DANKO-100 TEM, power 150 kW, efficiency 88.0%, fuel supply, steel heat exchanger, centrifugal pump, mechanical control, price – 296 200 rub.
  • DANKO-75 TEM, capacity 150 kW, efficiency 89.0%, fuel supply, steel heat exchanger, centrifugal pump, mechanical control, price – 330 400 rubles.
  • DANKO-50 TEM, capacity 150 kW, efficiency 88.0%, fuel supply, steel heat exchanger, centrifugal pump, mechanical control, price – 267 100 rub.
  • DANKO-25 TEM, power 150 kW, efficiency 89.0%, fuel supply, steel heat exchanger, centrifugal pump, mechanical control, price – 182,300 rubles.
  • DANCO-17 TEM, power 150 kW, efficiency 88.0%, fuel supply, steel heat exchanger, centrifugal pump, mechanical control, price – 152,200 rub.


To maintain a hygienic thermal environment in the space, the unit’s thermal capacity needs to be chosen in accordance with the home’s heating supply project.

During operation, the lowest ambient air temperature does not fall below 5 C. The total volume of coolant in the network and the centrifugal pump’s circulation speed must be considered when installing the boiler.

Basic requirements for Danko boiler installation:

  1. Before installing the unit, a heat-resistant horizontal foundation base is made. Walls are shielded with heat-resistant materials, the gap between the wall and the boiler leave at least 250 mm. The insulation layer must protrude 150 mm beyond the dimensions of the body.
  2. In front of the front working wall of the unit, a free passage of at least 100 cm.
  3. It is forbidden to brick the base of the unit into the floor, because the process of air intake into the furnace chamber will be disturbed.
  4. The boiler unit is placed below the level of the batteries, for the efficiency of the coolant circulation inside the heating circuit.
  5. The expansion tank is installed at the highest point of the heating network, preferably in a heated place.
  6. The unit is installed with a flue pipe more than 5 m from the level of the chimney, which is placed in the boiler .
  7. The height of the chimney above the roof must be higher than the level of wind support and at least 50 cm above the roof ridge.
  8. The main flue duct must be located vertically, with smooth internal surfaces, without turns and bends.
  9. The design of the chimney must ensure that the temperature of the flue gases at the boiler unit outlet is higher than the dew point temperature.
  10. The connection of the unit"s gas connection to the chimney is made with a zinc or non-corrosive pipe.
  11. The unit must be installed and serviced only in rooms with stable supply and exhaust ventilation
  12. Connection of the boiler with the system is carried out using easy-to-connect connections: couplings, coupling nuts or flanges and can not be accompanied by high tension pipes.
  13. The sections of heating pipes operating with natural circulation are made with a slope: 10 mm per 1 m in the direction of the battery to collect air and remove it when filling the system with water.
  14. Connection of gas appliances of the boiler is carried out by the representatives of the state gas supply company.

In the realm of home heating and insulation, the choice of boiler can make a significant impact. When considering Danko boilers, it"s crucial to weigh both their advantages and common faults. Danko boilers are renowned for their efficiency and durability, offering reliable heating for homes. One of their standout features is their ability to efficiently burn various types of fuel, providing flexibility for homeowners. However, like any appliance, Danko boilers are not without their faults. Among the main issues reported by users are occasional reliability concerns and the need for regular maintenance to ensure optimal performance. Despite these drawbacks, Danko boilers remain a popular choice for many households seeking effective and efficient heating solutions.


It is essential to add heating medium—preferably soft water—to the heating system the night before the unit is turned on. To maximize the release of dissolved oxygen after that, raise the temperature to 90 C multiple times.

In order to avoid air locks forming in the network, filling is done very slowly and continuously.

The Danko boiler unit’s ignition order is as follows:

  1. Check the draught in the chimney system and the absence of gassiness in the room.
  2. Ventilate the furnace room for at least 10 minutes, the boiler inlet tap must be closed.
  3. Check the pressure of gas fuel in front of the boiler – less than 3000 Pa.
  4. With the help of automatic system "KARE" with closed boiler valve on the gas pipeline turn the temperature sensor knob counterclockwise as far as it will go.
  5. Open the gas tap.
  6. Press and hold the start button of the thermo-electromagnetic valve and press the piezo button until the burner starts to burn steadily.
  7. Heat the water to 80C, while controlling the pressure in the water network, check the quality of the burner, the torch should be bluish in color.

Operation and maintenance

Condensate builds up on the walls of the furnace chamber after the boiler unit starts up before the heating system warms up, and it then begins to flow into the furnace and the main burner underneath the boiler.

Under these circumstances, the condensate formation process will cease if the coolant temperature is raised to 70C. Additionally, using the heating system’s water for DHW is prohibited.

Keep an eye on the coolant’s pressure and temperature while the boiler is operating. Periodically checking the quality of the combustion nozzle and the rarefaction in the boiler is necessary.

First, look into the chimney system’s draught if the unit shuts down on its own. The presence of a back draft in the system is indicated by a hot draft sensor.

In order to ensure trouble-free operation of the boiler unit, a water purification filter is placed before the network water supply enters the device. Additionally, the heating circuit should be periodically flushed with clean tap water.

Danko Boilers Advantages and Main Faults
Advantages: Durable construction, efficient heating, reliable performance, cost-effective operation.
Main Faults: Potential for leaks, occasional maintenance issues, may require professional installation.

Selecting an appropriate heating system for your house is essential for both energy efficiency and comfort. To assist you in making an informed choice, we have examined the benefits and primary drawbacks of Danko boilers in this post.

Danko boilers are a popular option for many homeowners due to their many benefits. They fit well in homes with limited space because of their small size, and they are simple to install in a variety of spaces, such as utility rooms and basements. Danko boilers are renowned for their efficiency as well, which lowers their impact on the environment and energy costs.

The dependability of Danko boilers is one of their main advantages. These boilers can keep your house warm during the coldest months of the year for many years if they receive regular maintenance. Their longevity is attributed to their robust construction and superior components, providing homeowners with peace of mind.

Danko boilers do have some disadvantages, though, just like any other heating system. One frequent problem is the possibility of leaks, which can happen as a result of poor installation or general wear and tear. Furthermore, inconsistent heating and noisy operation have been reported by a few users, which can be annoying to deal with.

Danko boilers are still a popular option for many homeowners despite these drawbacks because of their small size, dependability, and energy efficiency. If you carefully consider the benefits and drawbacks and speak with an experienced expert, you can decide whether a Danko boiler is the best choice for the heating needs of your house.

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Sergey Ivanov

I like to help people create comfort and comfort in their homes. I share my experience and knowledge in articles so that you can make the right choice of a heating and insulation system for your home.

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