The best diesel boiler Diesel heating boilers, their device and varieties

Usually, most areas located far outside the city, due to some circumstances, do not provide central gas supply for a long time. Using electric types of heating equipment is a very costly business. Melting the house with logs or firewood is also not an option, it is tiring. It is precisely for such cases that diesel heating boilers are needed, the prices of which are not so high.

Liquid fuel (diesel) heating boilers - maximum comfort away from civilization

The main purpose of diesel boilers

The main scope of their application is rather large (by area) premises, ranging from 100 square meters. Of course, most often diesel heating boilers are purchased for - impressive in size - industrial or semi-industrial buildings (factory workshops, warehouses, country hotels), but there are also diesel boilers for heating a house that have not too high power and, accordingly, a lower price ( quite suitable for most buyers).

Diesel boilers are easy to operate

Almost any modern diesel fuel boiler is very easy to use: in fact, you first need to fill the fuel tank, after which you just turn it on. That's all! The principle works: "turn on and forget". The system functions completely automatically, and the user will only adjust the temperature indicators that are necessary for himself.

It is definitely worth noting here that not even an industrial (i.e., highly powerful) version, but simply an ordinary diesel heating boiler for a private house is capable of heating your home in a matter of minutes, which is very useful for a winter evening when all the family gathers at home after work.

What to consider when choosing a diesel boiler

1) Heat exchanger material. There are 2 options: cast iron or steel.

The diesel boiler operates according to a fairly simple scheme, partly similar to the principle of operation of gas heating equipment.

First, the fuel pump starts, followed by a special air booster. With the help of a pump, fuel is supplied to the burner, heated and carefully filtered. Further, the pressure is formed in the nozzles, which is necessary for the atomization of diesel fuel.

The ignition transformer then supplies ignition voltage to the electrodes. Both fuel and air masses enter the combustion chamber at the same time. After that, the combustible liquid ignites, as a result of which heat energy is generated, which directly heats the walls of the combustion chamber and the heat exchanger. As a result, the coolant is heated in the heat exchanger, which ensures uninterrupted heating of a private house.

During the combustion of diesel fuel, gases are formed - they are discharged through a conventional chimney.

Advantages of diesel boilers

The use of a diesel boiler for heating a house is justified by several advantages of the unit at once:

• High performance - a large amount of heat is released during the combustion of liquid fuel: the boiler efficiency varies between 91-96%. According to this indicator, it is not too inferior to gas equipment.
• Efficiency - a diesel boiler allows not only to heat a private house of any area with high quality, but also to provide it with hot water.

Diesel boiler is very efficient

• Minimal fire and explosion hazard - diesel fuel is many times less dangerous than gas. Thanks to this, it is not necessary to issue permits for the installation of the boiler.
• Possibility of automatic control - due to the presence of a fully functional automation system, the user can control any parameters of the equipment.
• Low power consumption - diesel equipment requires a minimum amount of electricity: it is consumed only to ensure the operation of fuel pumps and automation. That is why boilers are effective even in regions where there are interruptions in the supply of electricity to the house.
• No restrictions on use - diesel boilers can be used in houses of any size. The main thing is to correctly determine the required power of the unit.

Cons of diesel boilers

Diesel boilers cannot be called absolutely ideal, since along with the advantages they have several serious drawbacks:

• Increased installation requirements - for the installation of a diesel unit, you will have to allocate a separate technical room with high-quality ventilation and non-combustible finish of all surfaces. In this case, the room must be at least 2 m in height.

Important! Liquid fuel should be stored in a special plastic or steel container.

• Abundant soot formation - when the boiler is operating, a large amount of soot is formed, the deposits of which increase fuel consumption. That is why equipment needs to be cleaned regularly.
• Thickening - diesel fuel tends to thicken when the temperature drops below + 5 degrees, which complicates the movement of the coolant through the heating system.

Advice. To prevent thickening and its negative consequences, insulate the pipeline and filters or provide them with heating.

• High noise level - the operation of diesel equipment is accompanied by a strong unpleasant noise.

Types of diesel boilers

Diesel heat generators are classified according to two main features: burner type and heat exchanger material.

Burners can be of three types:

1. Single-stage - the cheapest and least efficient models. They work continuously, therefore, to adjust their power and change the temperature in the heating system, it is necessary to completely turn off the boiler.
2. Two-stage - can operate in two modes: at 100% and 40% of their base performance. Due to this, they can save a little on fuel consumption for heating the house.
3. Modulated - the most efficient and profitable models that allow you to adjust your performance from 10% to 100%, focusing on the required heating temperature.

A separate room is required for the installation of a diesel boiler

As for heat exchangers, they are of two types:

1. Cast iron - are heavy, high price and susceptibility to overheating, but resistant to corrosion.
2. Steel - characterized by low resistance to condensation and corrosion, but are affordable and easy to maintain.

Fuel consumption

When calculating the approximate amount of fuel required to heat a house with a diesel boiler, three parameters must be taken into account:

• heated area of ​​the house;
• boiler efficiency;
• unit power.

If the heated house is well-insulated, the ratio of the volume of combustible fuel consumed to the heat energy released looks like this:

1. Combustion of 1 liter of diesel fuel in 1 hour gives about 10 kW of heat energy.
2. 10 kW of heat energy allows you to heat 100 sq.m. area.
3. A burner operating at full power consumes 24 liters of diesel fuel in 1 day.

Fuel consumption for a diesel boiler is easy to calculate

Thus, we have a ratio of 1 l / 1 hour. Based on this, it is possible to calculate how much liquid is spent in one heating season to heat a dwelling with an area of, for example, 100 sq.m. Let's take a season of 200 days as a starting point. Let's say that for 100 days the boiler works at 100%, and for another 100 days - at 50%. We get:

• 100 x 24 liters = 2,400 liters for full capacity operation;
• 100 x 12 l \u003d 1,200 l for half-hearted work;
• 2400+1200 = 3600 liters for the whole season.

Now you are familiar with an alternative to gas and electric heating - diesel boilers. As you can see, these heat generators have many pros and cons - we advise you to carefully study all the indicated visual and functional features in order to choose the most suitable heating equipment for your private home.

Diesel boiler: video

Gasification has not reached all areas, so many owners of suburban housing have to look for a reasonable alternative to gas. In most cases, they stop the choice on such an autonomous system as diesel heating at home. Even with the regularly rising cost of fuel, the positive properties of this method can be identified.

Positive and negative factors

Diesel heating of a private house is widely practiced in many progressive countries, for example, Belgium is proof of this. This is not surprising, because with this method it is possible to obtain a fairly clean ecological process with safe and effective parameters. At the same time, the system has an excellent indicator of automation.

When compared with a gas system, diesel fuel boilers may be inferior, but this happens when the main is already brought into the house and the owner has been using gas for a long time. For a new connection, the supply will be incomparably expensive, in some regions an amount in the range of 500-900 thousand will be required, which forces you to switch to a diesel fuel boiler for heating a private house.

Installation of a diesel boiler does not require any coordinating bureaucratic delays, which distinguishes it favorably from a gas counterpart.

It is easy to work with such a heating device, since modern models of devices are equipped with an intuitive interface and are distinguished by a wide range of informative devices.

A diesel fuel boiler can work for a long time before a gas main is connected to the house. However, even this is not an obstacle, since a good master is able to clean the chimney and firebox from soot, replace a diesel burner with a gas one, and at the same time he is obliged to figure out the current settings for automatic operation. Such procedures are carried out within one working day, and then the device is ready for operation on gas. In some situations, the diesel plant is a duplication of the gas system.

What should be especially noted is the safety of this type of heating. Diesel fuel is non-explosive, although no one has canceled the ignition factor. Unlike liquefied or main gas, it cannot catch fire for no reason and even more so explode. That is why the regulatory authorities do not require permission to install diesel equipment. By the way, the requirements for the boiler room are not strict and they are easy to fulfill.

In addition to the advantages, diesel fuel boilers for the home have negative factors. The initial costs will be significant not only for the purchase of equipment, but also for the purchase of a significant amount of working fluid.

The installation is carried out by highly qualified specialists, since the quality of the procedure depends on the safety and efficient operation of the entire heating system on diesel fuel.

It is necessary to ensure regular maintenance of the boiler, otherwise it will soon be able to fail or reduce its output characteristics.

Operation is carried out on high quality fuel. Approximate consumption for central Russia in a season will be about 5,000 liters of diesel fuel per 200 sq.m of living space. To the cost you need to add maintenance costs of about $ 200 per year.

VIDEO: Diesel heating boiler Kiturami Turbo 30R

Equipment selection

Due to the large selection in the domestic market of boilers for diesel fuel for the home, you can choose the most optimal device that produces an efficiency of up to 85%. There are also design features of the devices. You can choose a double-circuit unit that will provide the house not only with heat, but also with hot water.

Diesel fuel boilers for heating a private house consume about 0.9 liters of liquid per hour. More economical ones are able to lower this figure to 0.5 liters, but this value can be achieved if reliable thermal insulation work has been carried out with the room.

Any diesel heating boilers for a private house need enough space for installation. Usually about 4 sq.m of area is enough to install the unit. In the room it is necessary to organize supply external ventilation at the level of 8 cm 3 for every 1000 W of boiler power or 30 cm 3 if the inflow is carried out from the rest of the building.

The installation must be grounded. This approach will save the owner from the occurrence of static electricity, which can lead to unwanted processes.

When operating a diesel fuel boiler for the home, you will not need to install complex chimneys or other superstructures. It is enough to use coaxial pipes to remove combustion products.

Power Criteria

Before choosing how to heat a house, it is worthwhile to calculate the area and cubic capacity, because based on these values, the required installation power is selected. With a standard ceiling height, the power is selected as follows: we divide the heated area in m 2 by 10 and get an approximate value in kW.

It is advisable to round the figure up to ensure a power reserve. If the ceiling height is about 3 m, then we increase the final power value by 10%. For double-circuit boilers that use warm water heated by the boiler for domestic purposes, the power indicator rises by 20% of the calculated one.

In this case, it is necessary to take into account the materials from which the heat exchanger is made. Sulfur is included in the composition of diesel fuel. It contributes to the formation of caustic condensate, which causes corrosion processes that contribute to the destruction of metal walls. Manufacturers are trying to combat these phenomena with the release of cast-iron boilers and stainless steel tanks.

Fuel reserves

The selection of capacity is a crucial moment in the process of starting the operation of a diesel system. For her, it is necessary to select and equip a special place. It can be based in two places:

• directly in the boiler room next to the consumer;
• near the house.

In any case, it will be necessary to provide a spacious entrance for the tanker, who will be able to drain the required volume into the installed cavity.

According to building codes, the maximum value of the tank located in a household boiler room should not exceed 800 liters. However, in this case, you will have to refuel several times during the season. The output will be the external installation of a large capacity of 2-4 thousand liters. It is customary to install large tanks vertically and carry out piping for them in order to increase work at one gas station.

VIDEO: Diesel boiler piping

External tanks need reliable insulation so that diesel fuel does not freeze. Pumping into the internal cavity is carried out by a pump. It should be borne in mind that at negative temperatures, the viscosity of diesel fuel increases, which automatically increases the load on the pump.

How to calculate fuel consumption

The thermal power of boiler equipment is, on average, 10 kW, which can be achieved at a flow rate of 1.2 liters per hour. When calculating, a flow coefficient of 0.1 must be taken into account.

Let's take an example.

We need to determine the fuel consumption in a house with an area of ​​120 sq.m. The power of the boiler required to heat the said house is 15 kW. Now we determine what will be the fuel consumption

15 kW x k 0.1=1.5 kg/h

Thus, the boiler consumes 1500 ml of fuel per hour during normal operation of the burner. Per day, this amount will be 3600 ml at the rate of 1.5 kg / hour x 24 hours.

The number of days of the heating season in each region is different. In Astrakhan, this is 106 days, in Stavropol - 85, in Anadyr 240, and in Khatanga (the northernmost settlement) - 256. If we take an average of 150 days, it turns out that 5400 liters of diesel fuel will have to be spent per season.

A liter of diesel fuel costs an average of 32 rubles, the total cost of the heating season will be almost 173 thousand rubles. Calling such heating cheap will not work.

For comparison, an electric boiler consumes 16.8 kW / h in one day. The cost of electricity is 3.26 rubles. (average price of a kilowatt of energy), total per day 55 rubles. For the heating season, the total cost will be 8215 rubles.

VIDEO: Comparison of different heating systems

Diesel boilers cannot be called the most budget option; they are selected when it is impossible to connect private houses to a gas main. But this does not mean that these devices do not have advantages, on the contrary, they are safer and more autonomous. The approximate consumption of diesel fuel for a boiler with a power of 15 kW is 1.5 liters per hour; in the face of rising prices for electricity and gas, such heating is considered an acceptable and even profitable alternative. When choosing, the volume of the room, the need for hot water supply, the material of the heat exchanger, the possibility of reconfiguring to other types of fuel and other design features are taken into account. Manufacturers such as Buderus, Lamborghini, Navien, Kirov, Ferroli, De Dietrich, Kiturami have positive reviews, most of them produce universal models.

The principle of operation is based on the transfer of heat during the combustion of diesel fuel in an open firebox to water or another liquid heat carrier circulating behind the wall of the exchanger. Diesel fuel is cast with a high calorific value, the efficiency reaches 90% and higher (when using flue gas energy in condensing boilers - up to 108). The heat transfer process is fully automated, subject to uninterrupted supply of energy, the heating system can operate unattended for months. Installation and connection does not require a special permit, such boilers are used both as the main heating unit and as a temporary option with subsequent reconfiguration for gas (for this, you should purchase a universal model).

According to the type of heat exchanger material, steel and cast iron units are distinguished, the second variety is deservedly considered more durable. Energy efficiency is also related to the type of burner; according to reviews, the maximum efficiency is observed in boilers with preheating. If there is a need for hot water, models with a second circuit are selected, such a characteristic as performance must be taken into account. Another decisive indicator is the consumption of diesel fuel - the lower, the faster the cost will pay off.

Operation features

Diesel heating of a country house implies the fulfillment of a number of requirements:

1. Placement in a special boiler room with walls from 2.5 m and a separate exit.

2. The location of the fuel storage, taking into account fire safety standards and an increase in the viscosity of diesel fuel at low temperatures. The best option is deepening into the ground.

3. If it is necessary to install the tank directly in the boiler room, its volume should not exceed 0.8 m3 (this is not enough for uninterrupted heating).

4. It is allowed to use only certified containers.

5. An energy supply system is being thought out, the gravity option is only suitable for tanks located above the device itself.

Product Description

1. Buderus Logano G125 SE 25.

Floorstanding single-circuit boiler for diesel fuel with a heat exchanger made of high quality gray cast iron, it is possible to connect an indirect heating boiler or a standard hot water tank. The open combustion chamber is cooled by water, eliminating the possibility of overheating. The advantage of the model and series is the simple operation and precise control of the main functions and parameters with the corresponding status notification on the external panel. When using standard diesel fuel or low sulfur diesel fuel, the burners leave a minimum of soot. Reviews note the noiselessness of the unit and good heat dissipation, the power is enough to heat a private house up to 250 m2.

2. Navien LFA-13K.

Double-circuit boiler with steel heat exchanger for space heating up to 130 m2. It is distinguished by low fuel consumption (not higher than 1.5 l / h), the efficiency of the device is 90%. The performance of the second circuit is sufficient to meet the needs of a family of two - 7.5 liters at a heating temperature of up to 25 ° C. Installation type - floor, weight and compact dimensions will allow you to choose a location convenient for the owner of a private house. The coolant pressure in the circuit does not exceed 3 bar.

3. Lamborghini AX 3 47.

A powerful boiler with a burner-nozzle, the body and the sectional heat exchanger are made of cast iron. Additional installation of weather-dependent automation and reconfiguration to gas is allowed. It is located in a separate boiler room, suitable for heating large private houses (up to 400 m2). A design feature is an improved firebox and good thermal insulation of the panels. Self-diagnostic system of a modern type, equipped with a safety thermostat, an emergency mode indicator. Customer feedback confirms the functionality and high performance of the Lamborghini of this series, in particular - heat retention and low energy consumption.

4. Kiturami STS-21R.

Universal double-circuit boiler: runs on diesel fuel, but is easily reconfigured to gas. The body and heat exchanger are made of stainless steel, the seam processing technology eliminates the leakage of the coolant. The presence of a turbocyclone burner contributes to an increase in efficiency up to 90%, and a universal flue gas exhaust system is also among the advantages. The electronic control module and status indicator lights are located at the front of the diesel boiler. Implemented the possibility of remote control (for this you need to buy a remote thermostat) at a distance of up to 30 m from the unit. The power of the heating and DHW circuits is regulated separately.

5. KChM-5-K-38, Kirov Plant.

Pig-iron boiler with a blast burner for diesel fuel with an efficiency of up to 88%, (universal, initially the model is set to gas, it can be reconfigured to coal and peat coal). Optimal for areas from 230 to 385 m2 with a maximum flow rate of 3.8 l/h. The cladding is made of steel; an insulating mineral layer is provided to reduce heat loss. It works at low draft, while providing the necessary vacuum (the exact value is indicated in the description of the device and confirmed by the design organization), a cascade installation of two or more boilers is allowed, most often such a need arises when heating industrial premises.

Customer Reviews

“I have been using the Buderus diesel boiler for many years, the evaluation of the work is completely positive. For all the time of service there were no failures, breakdowns, the walls of the heat exchanger do not burn out. The only negative I can name is the high price, but the quality of the diesel fuel boiler is appropriate. ”

Yaroslav, Moscow.

“I was building a cottage outside the city, the gas line has not yet been connected, I had to buy a diesel heating boiler. I preferred a Korean manufacturer and a dual-circuit design and did not regret it. Without increasing fuel consumption, the Navien LFA-17K produces about 10 liters of hot water per minute, enough power to heat an area of ​​​​160 m2.

Kirill, Rostov-on-Don.

“I installed a liquid fuel boiler from the Korean company Kiturami for heating water and heating a private house. At the time of connection, the main criterion for me was the cost of a diesel unit, but the choice turned out to be successful, and the device was reliable. The performance of the water heating circuit is small - only 8 liters, but it covers the needs of two people.

Konstantin, Krasnodar.

“I consider diesel heating boilers an acceptable alternative to gas boilers, but only if they are operated in individual circuits and it is impossible to connect a centralized gas supply. When starting up and installing liquid fuel devices, there are no problems with utilities, but many questions arise when placing a fuel storage. I advise you to immediately provide for electric heating of pipes for supply, this will eliminate the risk of thickening in cold weather.

Alexey, St. Petersburg.

Price

Model name, country of manufacture	Heat exchanger material	power, kWt	Dimensions, mm	Weight, kg	Price, rubles
Buderus Logano G125 SE 25, Germany	Cast iron	25	915×600×880	175	122700
Navien LFA-13K, Korea	Stainless steel	13	754×320×520	49	43000
Kiturami STS-21R, Korea		24,4	700×325×602	32	53700
Lamborghini AX 3 47, Italy	Cast iron	47	500×500×850	175	79000
KChM-5-K-38, Russia		38	835×1150×500	100	61000

There are different opinions as to whether a diesel boiler is beneficial for heating a private house. To determine how expedient and economical it is to use diesel fuel boiler equipment, you will need to carry out simple calculations and calculations, as well as consider general selection recommendations.

Is a solar boiler profitable for a home

The benefits of heating a house with diesel become obvious if we consider the main advantages:

A diesel boiler, in its efficiency, is inferior to a classic heat generator running on natural gas. But, given the high cost of obtaining permits and approvals, a diesel-fuel heating device is quite capable of competing with gas-fired boilers.

Recommendations for choosing diesel boilers for country houses

Heating boilers for the home, on diesel fuel, are presented in a large assortment. For an unprepared buyer, an independent choice can be a real test.

Diesel boiler equipment for the home is selected according to several performance characteristics:

In order for the heating system of an individual country house with a diesel boiler to be efficient, fully comply with the technical characteristics of the building and consumer preferences, when choosing, pay attention to four more important characteristics:

1. The number of contours.
2. Performance.
3. Manufacturer's mark.
4. Price.

Single-circuit or double-circuit diesel boiler

Diesel boilers for heating and hot water supply of a country house are produced with one and two circuits. Each device has its own advantages and disadvantages:

• Single-circuit boilers- models of high performance, designed for connection to the heating system. The possibility of heating hot water is not provided.
  If subsequently, a DHW connection is required, an indirect heating boiler is built into the heating system. The advantage of single-circuit models is the ability to heat large houses.
• Double-circuit boilers– the device is provided with DHW and heating circuits. Depending on the manufacturer, the design uses a bithermic or separate heat exchanger.
  Modern models are equipped with built-in storage capacity. The advantage of this design of a diesel boiler on diesel fuel is the instantaneous supply of hot water to the consumer, immediately after opening the water supply tap.

The choice of a diesel boiler is based on the actual need of a heated building for heat and hot water supply. Boilers with one circuit, installed for large houses, with two circuits, are used if there is a need for hot water supply.

Calculation of the power of a diesel boiler

The performance of the heat generator is calculated according to the heated area of ​​\u200b\u200bthe house. When calculating, use the formula, 1 kW \u003d 10 m². In each case, add 15-20% of the performance margin necessary to prevent the heat generator from operating at maximum loads.

For double-circuit boilers, the stock is increased by another 20%. Calculations of boilers connected to an indirect heating boiler are carried out in accordance with the minimum heat output declared by the manufacturer of the storage tank.

The performance of the heat generator should be sufficient to maintain a positive temperature in the house and at the same time heat hot water in the storage tank.

What brand of diesel fuel boiler to choose for home

Prices for domestic solar boilers

Prices for diesel heating boilers for private homes vary, depending on the brand, performance and degree of work automation. So, German heat generators are premium class equipment, they are sold starting from 100-120 thousand rubles. in the basic package. For additional equipment with a remote control unit and other functions, you will have to pay an additional 15-20% of the initial cost.

Household diesel fuel boilers for the home, Korean manufacturers, are offered starting from 50-80 thousand rubles. Additional equipment also affects the cost: fuel pump, storage facilities. All these necessary elements of the boiler room are purchased separately. Tank volumes vary from 0.5 m³ - 15 m³ and more.

Requirements for a diesel boiler house in the house

Installing a diesel boiler in a house is a complex technical process that requires qualified assistance. When connecting, take into account the current regulatory requirements and fire safety regulations. Adjustment and maintenance are carried out using special computer software.

The organization of heating in a private house with a diesel boiler is carried out subject to the following conditions:

• The room for the boiler is chosen from technical rooms with sufficient area, lighting, ventilation.
• The placement of diesel boilers in residential country houses is carried out on a non-combustible base. Wall and floor decoration is carried out using non-combustible building materials: ceramic tiles, plaster.
• Automation - maintaining the temperature in the house is carried out automatically. Human participation in the operation of the heat generator is reduced to a minimum. Be sure to install safety automatics that turn off the operation of the boiler in the event of an emergency.
• Ventilation in the boiler room is provided through channels with natural and forced supply and air exhaust. The cross section of the ventilation duct is calculated based on triple air exchange for an hour.
• Diesel fuel storage is installed in a separate building. In the boiler room, it is allowed to store a reserve tank, with a maximum capacity of not more than 3-5 m³.

The correct installation of a diesel boiler in a residential private house is based on an understanding of work processes. The burner device creates strong noise interference, therefore, soundproof measures are carried out in the boiler room.

Additionally, a UPS and a stabilizer are installed to ensure the system's performance, even during power surges or power outages.