Boilers for heating a private house on electricity. Combined electric wood heating boilers - the principle of operation of a hybrid installation
Electric wood heating
Country buildings: cottages, dachas and houses of rural residents, as a rule, do not have a central heating supply and are not gasified, therefore, they most often use electric, wood-burning or combined (double) electric wood heating .
Among all heating systems, electric has the highest efficiency - almost 100%. Besides electric boilers cheaper than gas and the cost of their installation is less.
Electric heating is the only one that does not produce any harmful emissions. With its help, rooms quickly heat up, and the equipment works automatically.
Significant drawback electric heating- the cost of electricity, and in the countryside there are often power outages, and in the winter cold you can be left without heat for a long time.
Wood heating
Firewood is the cheapest type of fuel, so it is profitable to heat houses with firewood.
Wood heating is autonomous, does not depend on gas pressure or voltage in the mains, accidents on gas pipelines and power lines.
It is also important that when burned, wood emits much less harmful substances than gas or oil products.
The disadvantage of such heating is that it is necessary to constantly add firewood, have a lot of space for storing it and constantly replenish stocks. True, there are already stoves where firewood is fed into the furnace automatically (no more than once a day).
Combined (hybrid) option
The specialists of the Teplostroymontazh company, given that electric and wood heating have disadvantages, recommend using a combined option - electric wood heating. Its advantages are obvious: in cases of lack of electricity, the house is heated with wood, so to speak, a safety option. If the heating is carried out mainly by firewood, then in the morning, in order to quickly heat the house that has cooled down overnight, it is enough for a short time turn on the electric boiler.
An electric wood burning boiler is a device that can run on electricity or wood. It combines a heating element and a firebox for firewood. To switch from one type of heating to another, you just need to change the boiler burner.
Electric wood heating is one of the latest developments. The Teplostroymontazh company has already equipped hundreds of houses in the Moscow region with it. And all consumers note its high efficiency and reliability.
In addition to heating, electric wood boilers able to provide housing hot water. Some models are equipped with cast iron burners that allow you to cook food. Due to its versatility, such heating is popular in all regions of the country.
▼ Electrical heating: ▼
wood burning boiler
Far outside the city, where there are no gas pipelines, it is difficult to organize efficient heating houses with one type of water heating equipment. After all, domestic power lines do not always have the necessary power, and solid fuel boilers do not have autonomy. Some manufacturers have tried to solve this problem and have offered potential buyers electric wood-fired boilers. Using them, you do not need to be afraid of a power outage and you can count on certain indulgences in terms of maintenance of the installation.
When is it worth buying a hybrid?
It is clear that the combination of several principles of work for the buyer will be expensive. Electric wood boilers are not cheap, so their purchase can only be justified if it is necessary to use it in one heating season multiple types of fuel.
In some regions of Russia, preferential tariffs for electricity are established, and if they are exhausted, the cost of electricity increases significantly. In such a situation, the use of electric boilers is economically unprofitable, therefore, here, combined units can be the best way out.
Note! Some models are able to work on almost all types solid fuel. By choosing the right equipment, you can heat the house not only with firewood, but also with pellets, briquettes, sawdust and even coal.
Working principle of hybrid equipment
How is an electric wood-fired boiler arranged? How does he work? The principle of operation of the installation is based on the use of several combustion chambers and electric heaters. A separate heat exchanger is connected to each furnace. It is this design feature that allows you to use the type of fuel that is at hand.
If electric heating elements are turned on, they do not heat the coolant, but the water that is in the boiler.
There are many advantages to this heating option. At any time, you can use the most affordable type of fuel, for which you just need to change the burner. Doing it yourself is not that difficult. Detailed description The wiring diagram is in the manual.
Series AOTVK 22-6
Practice shows that in most cases the owners of hybrid heating installations country house use electricity. But when it is turned off, the house will not cool down. The hybrid stove can be fired with wood, charcoal, and even woodworking waste.
Any electric wood-burning boiler is able to work offline for several days, without requiring the presence of a person. If the electric heating option is chosen, the installation does not need to be monitored at all. The time of its operation will be limited only when the supply of current to the network stops.
Note! When installing the described equipment, experts recommend starting an electric wood-burning boiler from heating the furnace, and only then transferring the unit to network operation. This will help to significantly save on electricity and warm up all the rooms in the house in a matter of minutes.
A huge range of the described equipment is on sale. In order to choose the right model, several important factors must be taken into account.
Features of the choice of model
Electrical installation
Modern manufacturers offering to evaluate the features of electric wood-burning boilers produce series for domestic and industrial services. Among them are compact floor installations, and mini-boilers. Each unit has its own equipment and its own scope.
Therefore, when choosing a specific model, it is worth considering:
- Installation power.
- The number of contours.
- Unit dimensions and weight.
Protherm BOBER series
The number of coils that will allow you to heat water using the combustion chamber is also important to consider. In some electric wood boilers, heating hot water occurs mainly with the help of tenov. And this is not always convenient. After all, electricity can be turned off at any time, and then the owners of the property will be left without hot water.
When purchasing an electric wood-burning boiler with several combustion chambers made of cast iron, you must be prepared for the fact that such equipment will weigh too much. The total weight can sometimes reach several centners, so a powerful foundation will have to be prepared for the equipment. And these are additional costs, and considerable.
When buying a hybrid model, it is useful to ask what material the grate is made of. Experts recommend choosing units with cast-iron or steel grates coated with ceramic enamel.
What else is important to know about hybrid boilers?
hybrid model
Before buying hybrid boilers for heating a country house, you need to consider that such installations will require a professional connection to the mains. It is possible to install equipment only after receiving all permits, and when a separate line is connected to the residential facility, designed for 380 volts.
To ensure the necessary safety during the operation of hybrid equipment, it is necessary not only to connect the installation to the devices, but also to perform grounding. However, you can't experiment. The only correct option is when the grounding is connected to a special circuit dug deep into the ground.
Basic installation requirements
Experts warn that the efficiency and reliability of an electric wood-burning heating boiler will largely depend on a well-executed installation. Here are its basic rules:
Pellets Fuzzy Logic
- All elements floor structure must be securely installed and properly connected.
- Directly in front of the firebox, it is necessary to lay a large metal sheet on the floor.
- It is advisable to place asbestos cardboard under the bottom of the installation.
- Except correct connection to electricity, it is necessary to install a chimney, observing all safety rules, as well as the norms of SNiPA.
- As a rule, an electric wood-burning boiler designed for heating a house is installed in a separate room, where, in addition to electricity, there must be good ventilation.
- When installing, it is important to choose a pipe diameter that will correspond to the power of the heating system.
Note! Failure to comply with this paragraph will provoke a different level of pressure. This will lead to leaks and even gusts. Therefore, it is advisable to install locking mechanisms along the entire length of the circuit, blocking the system without stopping the operation of the boiler.
Generalization
Aesthetic appearance
Any electric wood-burning boiler is able to solve the problem of heating a country house. Sometimes use electrical unit economically impractical or impossible due to frequent power outages. And I don’t want to heat the house with firewood - it takes too much time to maintain such installations. Manufacturers took into account these shortcomings and offered potential buyers a good compromise. Many people use it successfully today.
Ensure comfortable living country house possible only with an efficient heating system. Unfortunately, the choice in favor of one or another option does not always depend only on the desire of the owners. Often the possibility of installing, for example, gas boiler absent due to the remoteness of the settlement from the gas main, which forces the owners of a private house to look for other acceptable options for arranging the heating system.
Advantages and disadvantages of electric and wood boilers
One of these options, by the way, is very popular, is the installation of an electric or wood-burning heating boiler, because access to fuels such as electricity or firewood is almost unlimited. In addition, each of these heating systems has a number of advantages.
As for electric heating, these include the absence of harmful emissions, rapid heating of rooms, the highest possible efficiency and convenient boiler control. It would seem, what else could the owners wish for when the electric unit fully copes with the tasks assigned to it?
A significant disadvantage of such a heating system is the dependence of the heater on the mains voltage and the high cost of the energy carrier, which becomes especially relevant during the period of rapidly most crisis population. Trying to save money, people are looking for alternative heating options. Fortunately, today the market offers them in sufficient quantities.
Wood boilers, distinguished by their convenience and ease of use, are in high demand among homeowners who are not able to install a gas heating unit. Wood heating is completely autonomous, does not depend on gas pressure in the main, power outages, possible accidents on the highway and other factors. Among the minuses, the most important is the need to have an adequate supply of firewood and regularly monitor their presence in the firebox to ensure comfortable living conditions.
Modern manufacturers, having analyzed all the pros and cons of the above heating systems, decided to offer their potential customers the so-called hybrid boilers. Combined-type electric wood-burning heating boilers combine the advantages of both electric and wood-burning heating systems and allow you to choose the best operating option depending on your current needs.
Using such units, you should not be afraid of a power outage or lack of the required amount of wood reserves. You can heat the room with any of the resources that the homeowners have access to at the moment.
The advantages of electric wood burning boilers are obvious. Judging by the feedback from consumers who note the high efficiency and reliability of such heating equipment, its purchase is fully justified. Moreover, some models can work not only on wood, but also on other types of solid fuels - pellets, sawdust, briquettes and even coal. Of course, the price of such boilers will be much higher, but it’s not so insulting to pay for the opportunity to have the so-called safety option.
Principle of operation
The heating electric wood-burning boiler works, as mentioned above, on electricity and on wood. Its design combines a firebox for firewood and a heating element. Due to the fact that each furnace is equipped with a separate heat exchanger, the consumer gets the opportunity to use the type of fuel that is currently available. The transition from one type of heating to another is carried out by changing the burner. Doing it yourself is very simple, just follow the instructions that come with the unit.
As practice shows, the owners of electric wood-burning boilers mainly use the electric version of home heating, turning to wood heating only as a last resort. Any such installation can work offline for several days without requiring supervision. When choosing electric heating, you do not need to monitor the boiler at all. The time of its operation will be limited only by the lack of electricity.
Experts recommend starting a combined electric wood-burning heating boiler from heating the furnace. Only after that the installation should be transferred to work from the network. This little trick will reduce energy consumption and for short term warm up living quarters.
Features of choice
A wide range of boilers operating on the "wood-electricity" principle, presented on the heating equipment market, includes installations for domestic and industrial use. You can choose from the available variety of models both a compact unit and a mini-boiler room. Each option differs in configuration and scope.
Should be considered:
- . equipment power. In this case, it is necessary to rely on the type of fuel, the use of which is supposed to be the main one. In the selected model, this indicator should be higher than the heat consumption.
- . the number of circuits. Double-circuit combined boilers, in addition to heating the home, will also provide water heating.
- . installation dimensions and weight. Equipment equipped with several combustion chambers often has a significant weight, which will require the preparation of a serious foundation and, accordingly, considerable costs.
Typically, such a boiler is installed in a separate room with a 380-volt dedicated line and forced ventilation. Connection of equipment will be possible only after receiving the necessary permits. A safe connection option is one in which the grounding of the unit will be connected to a special circuit dug deep into the ground.
When buying a combined heater model, you should pay attention to the grate. It is desirable that they be made of cast iron or steel and covered with ceramic enamel.
Electric wood boiler - a compromise option autonomous heating. It has optimal operational characteristics and does not adversely affect environment. In regions where power outages are not uncommon, such a unit will be especially relevant. It is guaranteed to provide you with heat in case of possible problems with the power grid.
The cost of combined installations starts from 13-15 thousand rubles. At the same time, the price of double-circuit electric wood-burning units will be slightly higher than single-circuit ones.
If there is no gas pipeline in the region, then the choice of a boiler for heating depends on the type and price of the fuel that can be used. If it is firewood, then a rational solution would be to use a combined boiler using firewood with the ability to provide heating of the coolant from electricity. There is no doubt that the wood and electricity heating boiler was invented by an unknown craftsman, and the industry simply used this idea to produce popular combined boilers.
The use of electric heaters (heaters) in solid fuel boilers on wood provides redundancy, for example, after burning firewood or protection of the circuit from defrosting in the absence of the owner. The principle by which wood-burning electric heating boilers work is not complicated.
Wood is the main fuel, and electric heaters are switched on:
- when starting the boiler, to speed up the heating of the circuit;
- after burning firewood, to maintain the temperature in the circuit;
- to protect the circuit from defrosting in the absence of the owner;
- in the absence of the main fuel (firewood).
The design of the unit, which provides combined heating of a private house, wood and electricity, in which they are used as independent sources of energy, is quite simple. In a water jacket solid fuel boiler or in a container that is heated in a wood-burning boiler, electric heating elements are installed, which in total can provide the necessary thermal power for heating. Together with electric heaters automatic equipment is installed that controls the inclusion of heating elements depending on the temperature of the liquid.
If a boiler for a wood-burning house is installed in the circuit, then after they burn out, the coolant begins to cool down and it is necessary to produce new download fuel. The combined wood and electric boiler works according to a different algorithm. If wood loading has not occurred, then the coolant temperature sensor sends a signal to the control unit, which turns on the heating elements that will maintain the set temperature in the circuit. After loading firewood and starting warming up, the automation will turn off the electric heaters, and the combined boiler will work only on wood.
The main advantages of combined boilers
Heating circuits using combined boilers heating wood electricity in which are used jointly or separately, combined the advantages of solid fuel and electric boilers. In addition, the presence of two energy sources provides redundancy and reliability of the heating system.
Their main advantages:
Any complex technical products, and even more so combined devices, have their inherent disadvantages. The disadvantages that a wood-fired heating boiler has in a combined appliance will not go away, the same applies to the electrical part of a universal product.
The main disadvantages of boilers for wood and electricity are as follows:
A boiler that runs on everything that burns
If the region has the ability to connect to the gas pipeline, then for country houses most often choose heating boilers combined gas electricity firewood, which almost completely exclude the occurrence of any force majeure circumstances. The probability that all three sources of energy will disappear at the same time is extremely small.
The advantage of combined boilers is the operation on several types of fuel.
Wood, coal, gas, diesel and electricity can be used as fuel. If an accident occurs, for example, a gas pipeline, then it is enough to switch to another type of fuel. You can read more about universal heating boilers in our article.
Homemade wood-fired heating boiler
Sometimes circumstances develop in such a way that the owner cannot buy expensive equipment and, moreover, there is no gas in his region and firewood is the main type of fuel. In this case homemade boilers wood-fired heating can completely solve the problem of heating a home. Of course, you can buy a wood-burning heating boiler, but it is not uncommon that a home-made water boiler is significantly superior in its characteristics to industrial boilers. Much depends on the experience and knowledge of the owner.
To make a wood-burning boiler for heating at home, you need materials that are easy to purchase, automation for any systems is also on sale.
If the owner has sufficient skills and knowledge, then he draws a sketch of the future boiler, draws up a list necessary materials and start making.
Sometimes a home-made wood-fired heating boiler is made from decommissioned old boilers, which must be carefully inspected and the deficiencies noticed should be eliminated. Such boilers wood heating private house can be modernized. If you install heating elements in a water jacket and connect them to automation, then the old boiler found in scrap metal will turn into a universal heating device. You can read about other homemade products for home heating.
A homemade wood-burning boiler has certain advantages: