To the house was comfortable and cozy in winter, you need to think over a heating system that will work under all conditions.
Combined heating boiler, which is capable of operating on two or more types of fuel, is becoming more popular.
If one of them is missing, it can automatically switch to another one and vice versa.
Combined boilers have the following advantages:
- Protection against interruptions in the supply of one type of fuel;
- Savings due to the flexibility of the choice of heating modes;
- High efficiency index( over 90%);
- It is possible to automate the heating process;
- Modern models allow the connection of more than one heating circuit;
- Combined boilers can have a different configuration, structure, some models can work directly on four types of fuel.
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However, such versatile devices are too expensive, therefore the most popular among consumers is the equipment operating on two types of fuel:
- Firewood-electricity;
- Firewood-Gas;
- Gas-electricity;
- Firewood - electricity.
The most popular among potential buyers - combined heating boilers - firewood - electricity.
A fairly practical and thoughtful design allows you to install similar equipment in a small storeroom of a private residential or country house.
From the traditional data of the model have only one significant difference: inside the tank of the heat exchanger an additional heating element - tan is installed.
Most models are equipped with automation, which facilitates the operation of equipment and performs a number of operations:
- Changes the operating modes of the boiler;
- Regulates power;
- Switches between the fuel used.
Modern combined boilers for home heating, which operate on wood and electricity, have a simple and complex design at the same time.
The furnace for solid fuel is usually located at the bottom.
On top of the heat exchanger, through which the coolant is transported in the system. When it enters, it receives heat transferred from the furnace.
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Inside the heat exchanger, a heating element is installed. When switching the heat source, it starts to heat up and maintain the desired temperature in automatic mode.
Combined double-circuit heating boilers are widely used, allowing simultaneous connection of, for example, a house heating system and a warm floor, it can also be used as a backup source of warm water in the pipeline.
Contents:
- Firewood - gas
- Gas - electricity
- Where to buy and what prices?
Firewood - gas
No less popular is a combined gas heating boiler - wood, presented on the market by both import and domestic manufacturers.
You can put not only wood in a solid fuel furnace, but also peat briquettes, coal and pellets.
Structurally combined gas heating boilers are divided into two types:
- Placed on the floor;
- Mountable to the wall.
The first type is a rather cumbersome equipment with a large capacity and designed for heating large areas.
It is customary to install such a boiler in a separate room. The second type is compact models designed for heating private houses.
The most popular among buyers are Finnish combined heating boilers, for example, manufactured by JAMA.
Most models allow you to connect more than one circuit and be used as a heating element for heating and hot water supply systems.
Advantages of gas-firewood boilers:
- Performance is independent of gas and electricity;
- The emission level in the atmosphere is minimized;
- High efficiency - over 90%;
- Ability to automatically switch between used fuel;
- Easy to maintain and do not require specialized care.
Gas - electricity
Despite the low popularity among consumers, the combined gas heating boiler - electricity is the most universal among the models proposed by the market, operating on two types of fuel.
From the name it becomes clear that such equipment is not intended for the storage of solid fuel.
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The advantages of a combined solid fuel heating boiler, running on gas and electricity, are obvious:
- Universality( use of two types of fuel);
- Work in automatic mode( since there is no need to manually store solid fuel and remove waste from its combustion, the switching process is fully automated and does not require human participation);
- Efficiency and high efficiency.
However, such equipment has a number of significant drawbacks:
- Complex design features;
- Installation and maintenance work should be carried out only by a professional craftsman;
- Performance depends on the availability of gas and electricity systems.
More common are such combined boilers for heating villas, which are seasonal residence.
They eliminate the need to store and store solid fuel, which eventually becomes damp and becomes unsuitable, and the likelihood that the gas and electricity supply system will not work simultaneously is small.
Where to buy and what prices?
The market is attached to buy a combined heating boiler of various manufacturers: from domestic( Raton, Metromash) and imported( Viadrus, Ferroli).
All of them have disadvantages and advantages. Each of the manufacturers offers their equipment in two variations: wall or floor.
It is recommended to give preference to brands of domestic production, as they are designed to work reliably in the harshest conditions of operation.
When choosing a heating boiler, it is recommended to carefully read its main characteristics: power, linear dimensions, power consumption( for models with electric Tan), the number of connected circuits.
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On the offered heating boilers the combined prices vary in a very wide range:
- Single-circuit - from 300 at.e.
- Multicontour - from 500 y.e.
The cost of expensive models can reach 1.5-2 thousand dollars. Combined boilers of industrial type can reach 5-6 thousand dollars.
