The most economical diesel heating boiler

Updated: 02/19/2021 18:37:14

Expert: Konstantin Borisovich Polyakov

*Review of the best according to the editors of expertology.ru. About the selection criteria. This material is subjective in nature, does not constitute advertising and does not serve as a purchase guide. Before purchasing, consultation with a specialist is required.

When the gas main runs far from a populated area, diesel boilers help create a comfortable microclimate in the house. They allow you to organize a heating system with minimal intervention from the residents of the house. The advantages of the liquid heating method include economical consumption and the ability to automate the operation of the device. The Russian trading network offers a wide range of domestic and foreign models. Our experts will help you choose the optimal diesel boiler, taking into account the terrain and size of the house.

general information

If in the past homeowners who did not have a connection to a gas pipeline chose exclusively solid fuel boilers, today devices running on diesel fuel are becoming more and more relevant. This is explained by the improvement of the design of such installations, their simultaneous power, efficiency and complete safety in operation. The use of special nozzles and improved combustion chambers can significantly increase efficiency. The premises are heated efficiently, while utility bills are reduced.

Modern diesel fuel boilers for the home are fully controlled by automation, which monitors all operating parameters. This allows you to reduce or increase the heating intensity. Servicing such heating equipment is not particularly difficult, so you can do it yourself. The latter favorably distinguishes diesel boilers from gas installations, for the maintenance of which it was invariably necessary to contact the appropriate gas services, and the cost of such work was extremely high.

In this video we will look at diesel heating:

Design Features

The design of boilers operating on inexpensive diesel fuel is simpler than electric and gas ones. Such installations may be non-volatile or require an electrical connection. Taking into account the availability of electricity in the house, you can choose the appropriate boiler model and completely solve the problems with heat in the house. The diesel boiler includes the following elements:

diesel burner:
High pressure pump;
fuel filter;
coolant temperature sensors;
pressure gauge;
Remote Control.

The operating principle of the unit is extremely simple. A pump from the tank forces fuel into the system, which enters the burner under high pressure and is sprayed into a fine mixture in the combustion chamber. Further, due to the high pressure, the diesel fuel ignites in the burner. Hot gases heat the coolant , after which they are discharged outside through a coaxial pipe and chimney. Despite the simplicity of the design, such units are extremely efficient, allow you to quickly heat the room, and thanks to the use of control automation, they are characterized by excellent fuel efficiency.

Modern diesel heating boilers are safe to use. According to this indicator, they look preferable to natural gas installations. The operation of such equipment is fully controlled by automation. Built-in sensors monitor system pressure and proper combustion of fuel in the burner and, if necessary, make appropriate adjustments.

The presence of built-in control and automation units with developed logic allows you to optimally configure the operation of the equipment. It is possible to quickly reduce or increase the power of the boiler. You can set the heating so that the optimum temperature is maintained or the equipment turns on at certain hours. This ensures maximum efficiency and proper heating of the house while saving fuel.

Installation Requirements

A separate room must be provided for diesel heating boilers operating on liquid fuel.
Often, at the stage of designing a house, the boiler room parameters are calculated in advance. The area of the room for the boiler room should be at least 7-8 square meters. The boiler room must be sufficiently well ventilated and there must be space for storing the fuel tank. Reinforced foundations are installed in those rooms where the project plans to place a large number of heating devices.

The area of the room provided for installing the boiler should also be sufficient for convenient servicing and clean air supply. The distance from the boiler to the walls should be about 30-50 centimeters.

For every kilowatt of boiler power, 8 square centimeters of fresh air must be supplied, based on which the ventilation power is calculated. The entrance to the ventilation duct should be under the ceiling, and the opening to the chimney should be in the wall.

The chimney must be gas-tight. For this purpose, it is either plastered or an asbestos-cement pipe is placed inside the chimney. The minimum ceiling height in the boiler room should be 2.5 meters. And if you decide to install it in the basement of the house, this will only be possible if you have a separate exit to the street.

Fuel consumption figures

Previously, the disadvantage of such equipment was mediocre fuel efficiency, which somewhat limited its prevalence in the domestic market. However, today, with the development of technology and the advent of automatic control systems, diesel boilers began to consume less fuel, while at the same time their efficiency increased. Even when using a low-power unit, you can successfully heat a dacha or a small private house.

Calculating the fuel consumption rate of such boilers will not be difficult. For this calculation, a universal formula is used, in which the boiler power is divided by ten and the diesel fuel consumption per hour for operating the equipment at its full power is obtained. Accordingly, if a unit with a power of 20 kW is used and it operates at full power, then it will consume 2 liters of fuel per hour. Such consumption figures are observed only at maximum power ; in reality, diesel fuel consumption will be much less.

High power models from 30 kW

Keep in mind! Boilers with high power are ideal for heating large rooms even at very low air temperatures.

They create the necessary coziness and comfort. Let's consider the most powerful models with high quality.

The best high-power models according to customer reviews and ratings.

Kiturami Turbo 30R 34.9 kW dual circuit

Large-scale option with high performance for heating large rooms.

Electronically controlled model, all settings are displayed on the display. A remote control is included.

Maximum safety is ensured by: protection against freezing, overheating, and self-diagnosis.

For greater convenience, automatic ignition is provided.

Specifications:

installation - floor;
thermal power - 34.9 kW;
control type - electronic;
heat exchanger material - copper;
combustion chamber - open;
dimensions - 360x920x650 mm;
weight - 82 kg.

Advantages

affordable price;
the system is fully automated;
compactness;
efficiency;
high efficiency;
good equipment.

Flaws

mediocre design;
heavy weight;
not always high-quality assembly.

Kiturami TURBO HI FIN 30 34.9 kW dual circuit

A powerful unit with high efficiency and original appearance.

Installing the device is quite simple. If you understand heating systems, installation will not be difficult.

For maximum safety, the model is equipped with frost/overheat protection.

The boiler also has a built-in thermometer.

Specifications:

installation - floor;
thermal power - 34.9 kW;
control type - electronic;
heat exchanger material - steel;
combustion chamber - open;
dimensions - 365x930x650 mm;
weight - 80 kg.

Advantages

The kit includes a remote control for more comfortable control;
interesting design;
high performance;
rich equipment;
presence of a programmer;
auto ignition

Flaws

high price;
sometimes makes noise during operation;
uneconomical option when operating at maximum power.

Navien LST 40KG 40 kW dual circuit

A very powerful device capable of heating rooms up to 40 square meters.

This option is ideal for owners of large country houses where electrical problems are regularly observed.

Considering that the process is automated, setting up is quite simple, this is an indispensable boiler for older people who find it difficult to understand the intricate controls.

Specifications:

installation - floor;
thermal power - 40 kW;
control type - electronic;
heat exchanger material - stainless steel;
combustion chamber - closed;
dimensions - 370x858x670 mm;
weight 55 kg.

Advantages

stylish exterior;
compactness;
a light weight;
maximum protection against emergency fire;
made from quality materials;
good equipment.

Flaws

high price;
expensive components;
uneconomical option in terms of fuel consumption.

Navien LFA 40K 40 kW dual circuit

An ergonomic model with a beautiful design that will be a pleasant addition to any interior.

In general, this model is practically no different in functionality from the previous one.

The peculiarity is only in the exterior and dimensions. Also pleasing is the not particularly high price.

Setting the boiler parameters is quite simple.

Specifications:

installation - floor;
thermal power - 40 kW;
control type - electronic;
heat exchanger material - stainless steel;
combustion chamber - closed;
dimensions - 380x856x649 mm;
weight - 81 kg.

Advantages

affordable price;
multifunctionality;
stylish exterior;
rich equipment;
high power;
good efficiency indicator.

Flaws

expensive spare parts;
makes noise during operation;
uneconomical option in terms of fuel consumption.

Navien LST 60KRN 60 kW dual circuit

One of the most powerful liquid fuel boilers with high performance.

Designed for very large rooms.

Provides not only heat, but also a large amount of water in a short time.

Given the comparative compactness of the unit, finding a place for it in a very large house will not be difficult.

Specifications:

installation - floor;
thermal power - 60 kW;
control type - electronic;
heat exchanger material - stainless steel;
combustion chamber - closed;
dimensions - 491x906x764 mm;
weight - 91 kg.

Advantages

high power;
good build quality;
multifunctionality;
convenient control;
rich equipment;
long service life;
installation is not difficult.

Flaws

high price;
expensive spare parts;
At maximum power it consumes a large amount of fuel.

Boiler selection

The efficiency of the heating system will directly depend on how correctly the heating boiler is selected for a private home. Now there are dozens of different models on sale, which differ in power, the presence or absence of a second heating circuit and control automation, as well as a number of other important parameters.

When choosing fuel equipment for cottages and country houses, the following factors must be taken into account:

building area;
type of coolant used;
climate in the region;
mode of living in the house in winter;
presence or absence of insulation;
wall materials used in construction;

If the house is built from heat-efficient materials and has good insulation, the homeowner has taken care of high-quality windows, and the climate in the region is not too harsh, then there is no need to purchase a heavy-duty diesel boiler. A unit with a power of 5-8 kW will be sufficient, which will cope with heating a house with an area of about 100 m².

To heat a large two-story building, a diesel boiler with a power of 12-15 kW is enough. Such equipment will be equipped with automatic control; it consumes a minimum of diesel fuel, while a solid reserve of power will be enough to quickly heat the premises. To install a powerful boiler, you will need a properly organized boiler room with high-quality ventilation of the room.

If the house is not connected to a hot water supply, then it makes sense to purchase a double-circuit diesel boiler, which can simultaneously both heat the house and solve the problem with hot water.

Such units have a more complex design and include a thermally insulated storage tank for water. They are economical and can solve heating problems while quickly heating water for a large family.

When choosing a specific model, you need to pay attention to its energy independence. If the boiler is equipped with automatic control, then for its operation the unit will need to be connected to the power supply. But simple mechanical installations can operate without an additional connection to the electrical network, which will be appreciated by summer residents and owners of remote farms where power outages are often observed. However, the electricity consumption of such a boiler will be minimal, so you can solve existing problems with the help of a small battery, the charge of which will be enough for several weeks of operation of the heating equipment.

Models of small and medium thermal power up to 30 kW

Devices with a power of up to 30 kW are convenient in small and medium-sized rooms with a total area of less than 300 square meters. m . Let's look at the best models in this segment.

Rating of the TOP 5 best diesel models in terms of price and quality ratio.

Kiturami Turbo 13R 15.1 kW dual circuit

A device that can solve two problems in a room at once - heating and hot water.

A unit with a high efficiency, with good thermal power.

The boiler is sold at a very affordable price, thanks to which the model has become very popular among consumers.

It has many useful features that help you save money.

Modern design completes the pleasant impression.

Specifications:

installation - floor;
thermal power - 15.1 kW;
control type - electronic;
heat exchanger material - steel;
combustion chamber - open;
dimensions - 365x915x650 mm;
weight - 64 kg.

Advantages

low cost;
compact size;
convenient control;
rich equipment;
stylish design;
Availability of auto diagnostics, auto ignition;
high level of protection.

Flaws

makes noise during operation;
the steel heat exchanger is susceptible to corrosion;
In case of breakdowns, difficulties arise with repair or replacement under warranty.

Kiturami TURBO HI FIN 17 19.8 kW dual circuit

Compact model with a laconic exterior and good performance.

The peculiarity of this boiler is that the unit can be controlled remotely using a smartphone.

You can remotely set the required temperature and turn it on/off.

Also included is a remote control for more comfortable use.

Specifications:

installation - floor;
thermal power - 19.8 kW;
control type - electronic;
heat exchanger material - steel;
combustion chamber - open;
dimensions - 325x700x602 mm;
weight - 40 kg.

Advantages

works in automatic mode;
can be controlled remotely;
acceptable price;
laconic design;
presence of a room thermostat;
easy to set up.

Flaws

high cost of spare parts;
high fuel consumption at maximum power;
Sometimes it makes strange sounds during operation.

Navien LFA 13K 13 kW dual circuit

A device with an original design will become a decoration in any home.

An innovative model with a stainless steel heat exchanger, which guarantees a long service life.

Convenient and intuitive controls with a number of useful settings.

The unit does not require special skills for installation, but it is still recommended to contact professionals.

Specifications:

installation - floor;
thermal power - 13 kW;
control type - electronic;
heat exchanger material - stainless steel;
combustion chamber - open;
dimensions - 320x754x520 mm;
weight - 49 kg.

Advantages

acceptable price;
beautiful exterior;
quiet in operation;
high build quality;
good equipment;
comfortable control.

Flaws

there is no way to independently pick up fuel from the depths - an additional pump is needed;
there are difficulties connecting to remote control;
consumes a lot of fuel.

Kiturami TURBO HI FIN 13 16.8 kW dual circuit

A modern model with an unusual exterior and a set of useful settings.

The boiler is compact in size, but has good thermal output and high efficiency.

Equipped with protection against freezing and overheating, an on/off indicator, and automatic ignition.

A very convenient option for houses with medium square footage.

Specifications:

installation - floor;
thermal power - 16.8 kW;
control type - electronic;
heat exchanger material - steel;
combustion chamber - open;
dimensions - 325x700x602 mm;
weight - 40 kg.

Advantages

attractive price;
interesting appearance;
the heating process is fully automated;
high build quality;
compactness.

Flaws

high fuel consumption;
regular problems with fuel supply;
The instructions are not entirely clear.

Kiturami Turbo 21R 24.4 kW dual circuit

Comfortable to use model with clear electronic controls.

A special feature of this boiler is that it is equipped with a copper heat exchanger.

This allows it to work for several years without breakdowns or interruptions.

The device fully heats rooms with an area of up to 250 square meters. At the same time, it supplies the residents of the house with hot water.

Specifications:

installation - floor;
thermal power - 24.4 kW;
control type - electronic;
heat exchanger material - copper;
combustion chamber - open;
dimensions - 360x920x650 mm;
weight - 75 kg.

Advantages

good equipment;
compact size;
ideal price/quality ratio;
convenient display;
clear controls - easy to understand;
laconic exterior.

Flaws

not always high-quality assembly;
heavy weight;
Compared to analogues, the efficiency is rather weak.

Proper maintenance of equipment

The trouble-free operation of a diesel heating boiler will largely depend on the timeliness and quality of equipment service. This work is not difficult, so the homeowner can do it himself without turning to specialists.

When diesel fuel and oil burn in the burner, ash and soot are formed. Such contaminants settle on the combustion chamber, injectors and other elements of the fuel system, which impairs its performance. A 2 mm thick layer of soot and ash on the walls of the combustion chamber can lead to an increase in fuel consumption by 10%. By cleaning the burner from carbon deposits, the owner not only extends the life of the equipment, but also maintains optimal fuel consumption.

Cleaning a diesel boiler for a home can be done either manually or using special spray chemicals, which can be easily purchased in specialized stores. It is recommended to clean the combustion chamber from ash and soot once a month. If the unit is actively used, when in winter it operates at high power around the clock, cleaning may be required once every two weeks or more often.

How to calculate the required boiler power

For calculations, you can use the method of determining the minimum power depending on the area. To increase accuracy, the insulation of the walls of the room should be taken into account; losses depend on the material. For example, when using timber or installing a protective layer of mineral wool up to 150 mm thick, it is necessary to lay at least 0.5 kW for every 10 m² of area. In the case of improved insulation and the use of double-glazed windows, the value of heat losses is reduced to 0.4 kW.

The apartment owner can determine the parameter based on the methods set out in SNiP standards, which establish heat consumption coefficients:

0.034 kW/m³ for brick buildings;
0.041 kW/m³ for panel houses.

After measuring the area and determining the volume of the room, a calculation is made. For example, for a 120-meter apartment in a panel house with a ceiling height of 2.7 m without additional thermal insulation of the walls, you will need a boiler with a capacity of 120 * 2.7 * 0.041 = 13.2 kW. The rule applies when using standard windows, installing radiators along external walls and having working heating in neighboring apartments.

The boiler power is calculated depending on the area of the room.

A formula of the form Q=1000хSхk1…хk10 is also used, where:

Q – power in kW;
S – area in m²;
k1 – coefficient of the number of walls bordering the street;
k2 – correction for room orientation;
k3 – coefficient of thermal insulation of walls;
k4 – correction for minimum temperature;
k5 – ceiling height indicator;
k6 – indicator of heat loss through the ceiling panels;
k7 – window efficiency coefficient;
k8 – indicator that takes into account the total glazing area;
k9 – radiator connection indicator
10 – coefficient of location and shielding of batteries.

The best equipment manufacturers

Diesel heating boilers from domestic and foreign manufacturers are on sale today. The installations manufactured by Italian and German companies have proven themselves to be the best. This equipment is highly technologically advanced, it is reliable, extremely durable, and its maintenance is not particularly difficult. Among the best manufacturers of diesel boilers are:

In the assortment of these manufacturers you can find various models of diesel heating boilers, which will differ in power, performance characteristics and a number of other parameters. You can choose from entry-level models, the price of which will be affordable for every buyer, as well as top-line fully automated units that combine power and fuel efficiency.

The cost of boilers for autonomous heating running on diesel fuel can vary significantly. Premium models in basic configuration from German, Italian or French manufacturers will cost the buyer 100-120 thousand rubles. You can also additionally purchase various remote control units, which will increase the cost of the unit by 15-20%.

Inexpensive equipment from Korean, Czech and Slovak manufacturers will cost approximately 50-80 thousand rubles. Such equipment is made of reliable materials, equipped with automatic control and, in terms of its performance characteristics, is in no way inferior to models from the best German brands. In recent years, diesel heating boilers for private homes in the mid-price category have enjoyed the greatest popularity on the domestic market, which is explained by their availability and cost-effectiveness.

Thanks to the use of modern technologies and fully automatic control, a diesel fuel heating boiler is economical and efficient in heating the room. The homeowner will need to choose the right heating equipment, taking into account its power and room area, the presence or absence of automation and additional functions.

Today on sale you can find various modifications of diesel boilers that combine functionality, high technology and are offered to customers at affordable prices.

The choice of a heat generator for heating and hot water supply of a country house depends on many factors, primarily on the availability of a gas main. The use of a liquid fuel heating system is most often due to the lack of access to a centralized gas supply system.

Modern heating boilers using diesel fuel as an energy source have high efficiency and allow for complete autonomy of the heating system of a private home. In addition, some models can operate on fuel oil, waste engine oil and other liquid flammable mixtures, including liquefied gas.

Fuel storage tanks

Just as carefully as the diesel heating boiler itself, you need to choose a container for storing liquid fuel.
Since diesel fuel for heating purposes is purchased in large quantities, it is necessary to decide on the space where to store it, and most importantly, in what. Today, consumers often use special plastic containers to store liquid fuel. They have a rectangular shape, which makes their placement compact. As a rule, the width of the wall of the fuel container is about 75 cm, and its height is no more than two meters. The most popular among factory-produced containers are vertical tanks designed for a volume of 700 to 2 thousand liters.

Special manufacturing technologies allow you to make the container without seams, which is more reliable and will serve you for many years. Thanks to the anti-corrosion layer inside the container, large amounts of fuel can be stored for a long time, regardless of weather conditions. In addition to plastic containers, stainless steel storage facilities are also widely used.

Stainless steel metal containers can also provide all the necessary conditions for storing liquid fuel, since the metal from which they are made is resistant to aggressive environments and does not corrode, which ensures long-term trouble-free operation of the containers. Tanks designed specifically for storing diesel fuel are made from metal that has high corrosion resistance.

Design and principle of operation of a diesel boiler

The design of units using liquid fuels as an energy carrier requires the following basic elements:

Housings with a built-in combustion chamber;
Burners in which the formation of a combustible mixture occurs;
One or two heat exchangers;
Fuel pump;
Filtration systems;
Thermal sensors;
Electronic control and settings unit.

The material for the manufacture of heat exchangers can be steel or cast iron. Some premium diesel boilers are equipped with heat exchangers made of high-alloy heat-resistant steel.

The fuel entering the burner is mixed with air, thus forming a fuel mixture, which is sprayed through the nozzle into the combustion chamber. The completeness of fuel combustion depends on the correct adjustment of the burner itself and the quality of the nozzle. The fuel mixture entering the combustion chamber is ignited by a spark generated by an automatic control system (ACS), and the heat generated during the combustion process is transferred to the coolant through the walls of the heat exchanger.

The temperature of the coolant is controlled by a system of temperature sensors installed in the combustion chamber. When the set temperature regime is reached, the automatic control system turns off the burner, and when the coolant cools, the combustible mixture is automatically ignited. Exhaust gases are discharged through the chimney.

The burners of diesel heating boilers can be fan-driven or forced-air. In fan burners, excess pressure is created using a special built-in fan. The performance of such modules is quite high, but the operation of the installations is accompanied by an increased noise level.

In forced-air burners, a turbine is installed instead of a fan. The use of turbocharging can significantly increase the productivity of the installation and achieve complete combustion of the combustible mixture. Removal of exhaust gases from the combustion chamber can be done either naturally, due to the draft generated in the chimney, or forcefully, using a fan.

Another design feature of a diesel fuel boiler for heating a private home is the possibility of conversion to work with other types of fuel, in particular natural gas, for this you just need to replace the diesel burner with a gas one.

Advantages and disadvantages

Like any other heating boilers, diesel ones also have their advantages and disadvantages.
The positive points include:

- environmental friendliness of such a heating system. The level of emissions of harmful substances into the atmosphere will be minimal; — affordable price of equipment and installation. If we compare the purchase of a diesel boiler with a gas one, then this option is cheaper today; — automatic temperature maintenance. If the water in the system cools down, the burner will turn on automatically, and when the required temperature is reached, it will turn off again; — boiler parts are available for maintenance; — high productivity coefficient; — low level of electricity consumption.

As for the disadvantages, these include:

-increased requirements for the quality of the fuel used. Diesel fuel may contain various impurities that clog the nozzle and reduce the functionality of the pump. Such fuel requires purification using filters. The difficulty lies in resisting paraffin, which can literally immediately clog the cleaning system. — quite noisy burners, which is due to the specific nature of diesel fuel combustion; — the need to purchase a spacious tank to store a large supply of fuel so that it does not have to be constantly added to the container; — if the fuel line is located in an unheated room, it must be heated in winter, since the fuel temperature in a diesel boiler must be at least 5 degrees Celsius.

Advantages and disadvantages of diesel boilers

Like any other equipment, diesel boilers have their strengths and weaknesses. The advantages of such units include:

The device is fully automated and can operate autonomously without operator intervention. The duration of continuous operation is determined solely by the capacity of the fuel tank.
If the automation is working properly, boiling of the coolant is almost impossible, since the power of the installation can be instantly reduced to a minimum by turning off the fuel supply.
When stored, liquid fuel takes up much less space than a stock of coal, firewood or pellets.
Possibility of using waste oil and other liquid combustible waste as an energy carrier.
Unlike gas boilers for heating a private home, the installation of diesel heating equipment does not require coordination with the relevant services and can be done on its own.

TOP 10 best gas double-circuit boilers + which one is better to choose

Home heating systems using gas boilers as a heat source are becoming commonplace and widespread.
Often homeowners refuse the services of centralized networks in favor of autonomous systems.

They prefer to independently regulate the heating mode and the start or end of the heating season.

The range of functions of modern gas boilers is much wider than before, new features and additions have appeared.

Let's consider a group of double-circuit boilers, the most popular gas units.

Fuel consumption of diesel heating boilers

Since the cost of diesel fuel is quite high, fuel consumption is one of the most important characteristics of the installation. Overconsumption of energy leads to a significant increase in material costs for heating a home. Increased fuel consumption may occur due to the following reasons:

Incorrect burner adjustment
. Complete combustion of fuel is possible only with an optimal ratio of fuel and oxygen in the combustible mixture, otherwise diesel fuel consumption increases significantly.
Thickening of fuel
. With a significant decrease in temperature and insufficient thermal insulation of the supply pipelines, the viscosity of diesel fuel increases, which inevitably leads to an increase in fuel consumption.
Nozzle or injector failure
. Under the influence of high temperatures, the injector nozzle gradually burns out, which leads to improper atomization of the combustible mixture and, as a result, to increased fuel consumption.
Climatic conditions
. In severe frosts, more diesel fuel is required to maintain a given temperature.

There are a number of ways to reduce diesel fuel consumption while ensuring the necessary temperature balance in the house, these include:

Careful burner adjustment. The use of specially developed software allows you to reduce the fuel consumption of a diesel heating boiler for a private home by 10 - 15%.
The use of room temperature sensors and automation that monitors changes in external temperatures reduces fuel consumption by 15%.
Thermal insulation of external storage facilities and supply lines.
Correct choice of power characteristics of the unit.

When these conditions are met, diesel fuel consumption is reduced by 25–30%.

Determination of average fuel consumption

At the household level, we can assume with a reasonable degree of accuracy that with a power of 10 kW, a diesel boiler consumes 1 liter of fuel per hour, provided that the heat is spent exclusively on heating the house. When using a double-circuit boiler, diesel fuel consumption increases by an average of 30%.

Considering that heating 10 m2 of living space requires approximately 1 kW of thermal power, for efficient operation of the heating system in a house with an area of 100 m2, a heat generator with a capacity of 13 - 15 kW will be required. Such an installation consumes 1.3 - 1.5 liters of diesel fuel per hour, therefore, from 30 to 32 liters will be consumed per day. Provided it operates in nominal mode throughout the heating season, fuel consumption will be from 4.5 to 5 tons.

How to choose the best option

When purchasing equipment, you need to pay attention to such characteristics as:

efficiency;
heating area;

power consumption
fuel consumption.

An important indicator of equipment performance is the type of burner used. In boilers operating on gas and liquid fuel, replaceable burners are installed. The presence of a diesel fuel heating system allows you to reduce fuel consumption.

What diesel boiler is installed in your dacha?

Single-circuitDouble-circuit

Advantages of diesel heating boilers:

have high efficiency;
quickly warm up large rooms;
have automatic configuration and control of operating modes;
compactness.

Disadvantages of diesel heating boilers:

the need to install a boiler room and fuel storage system;
there is a need to organize an alternative source of power supply.

Criteria for choosing a heating boiler using diesel fuel

When choosing a diesel heat generator, special attention should be paid to the following aspects:

Thermal power of a diesel boiler. In general, it is generally accepted that to effectively heat an area of 10 m2 in the middle zone, 1 kW/h of thermal energy is required; in cold regions this figure can be 1.3 – 1.4 kW/h.

Possibility of temperature control. There are three main types of liquid fuel installations:

With a single-stage burner, constantly operating at maximum mode;

With a two-stage burner, providing the ability to operate in 50 and 100% modes:

With an adjustable burner that allows settings over a wide range, which significantly reduces energy consumption.

Fuel consumption. It is this indicator that determines the economic feasibility of using a diesel unit; in addition, based on these data, it is possible to prepare in advance the necessary fuel supply for the entire heating season.

In addition, one should take into account the possibility of creating a hot water supply circuit and converting the installation to use natural gas, in the case of a centralized pipeline supply.

Types of chimneys

The chimney is one of the most important thermal parts, which is necessary for its normal functioning.
The chimney must ensure the removal of fuel combustion products from the combustion chamber of a diesel boiler. There are internal and external chimneys. Internal ones are constructed inside the building to the top and lead out through the ceilings and roof. External ones are mounted along one of the walls of the house. In addition, there are individual and group chimneys. The first serves one boiler, the second, accordingly, works with several boilers.

Since many modern diesel boilers, during the combustion process, produce a low gas temperature at the boiler outlet, this feature places special demands on chimneys. One of them is that the diameter of the chimney must be no less than the outlet neck of the boiler. The chimney should not have bends or barriers to the exhaust gases. Also, condensation should not form in the chimney during operation. To prevent the formation of condensation, the chimney pipe must be insulated. A container for collecting condensate must be installed at the lowest point of the chimney. Chimneys with a height of more than 4-5 m are made of stainless steel. However, this material is quite expensive. Due to the formation of condensation, brickwork will not last long.

A new development has appeared on the market of products for heating systems - a universal chimney system with ventilation. It does not contain metal parts, therefore, is not subject to corrosion. This chimney system consists of lightweight concrete blocks, inside of which there is a ceramic insert. During installation, the blocks are placed on top of each other to the required height and glued with a special sealant. If we talk about cost, then such a chimney system is close in cost to a good quality stainless steel chimney.

Features of diesel boiler maintenance

Even with a correctly configured burner, during operation, soot and ash settle on the inner surface of the combustion chamber and the surface of the heat exchanger. Even a small amount of these deposits significantly reduces the intensity of heat transfer, so a layer of soot 2 mm thick reduces the efficiency of the installation by 10 - 12%. To prevent this, it is necessary to regularly clean the combustion chamber, heat exchanger and chimney pipe.

In addition, special attention should be paid to adjusting the burner, since the completeness of fuel combustion and, as a consequence, the amount of incomplete combustion products deposited on the walls depends on the correct ratio of fuel and oxygen in the combustible mixture.

To ensure maximum performance, it is also important to promptly flush or replace the nozzle that atomizes the air-fuel mixture. The use of high-quality fuel can significantly reduce soot and ash deposits on the walls of the heat exchanger and combustion chamber.

Timely cleaning of the device and proper operation will extend the life of the diesel boiler and ensure efficient operation of the heating system.