Long burning solid fuel boilers with a water circuit

Solid continuous burning boilers with a water circuit Housing: types of units

Unfortunately, there is still a lot of settlements and housing estates, where the carrying gas lines only planned. In such circumstances, it becomes an alternative equipment, for which the fuel is coal, wood or pellets (pellets). To provide a comfortable climate and availability of hot water for domestic use have resorted to the use of a long solid fuel combustion boiler with a water circuit for the home. Ease of use is that the loading of equipment is carried out once a day (in some models loading occurs once a week).

Solid continuous burning boiler thereby has a high (95%) efficiency.

The device is a single-and dual-circuit models

By design distinguish boilers with one combustion chamber with under-grate blast furnace and boiler with a two-piece upper and lower blast (pyrolysis boilers). Types of the solid body of the boiler water circuit: cast iron or steel.

Apparatus single loop boiler providing coolant heating system for heating the batteries, has a structure:

• firebox - camera combustion of solid fuels;
• ash tray - a collection of the waste generated during combustion;
• chimney - channel for the withdrawal of spent combustion gas;
• Shirt - embedded into the furnace heat exchanger with water.

The principle of operation of the boiler is as follows: fuel is laid into the combustion chamber, the combustion of which generates heat. It accumulates heat exchanger and gives it to the coolant, which circulates through the coil. Hot water enters the battery, and cooled down back into the boiler.

Unlike bypass solid fuel boilers for the home it is that it provides an additional heat exchanger (coil), which is used for hot water supply. This heat exchanger is connected to a water pipe, providing a flow of domestic hot water.

Additional boiler equipment

Upon heating the water, due to the expansion, its natural circulation takes place: being heated, it moves upward and cools and returns. Wood-fired boilers long burning able to heat only a certain amount of water. This option should be considered when choosing the boiler.

Related article:

The use of solid fuel boilers for heating private houses.The use of solid fuel boilers for heating private houses at times allows to reduce fuel costs.

To increase the efficiency of the equipment, it is proposed to equip the boiler circulating pump. With its installation efficiency will double, but then the operation of the boiler becomes volatile. If electric power is supplied intermittently, it is recommended to equip the boiler switch (bypass), able to translate the forced movement of water in the natural.

Useful advice!By purchasing the boiler, you should choose a model that will provide domestic hot water without the water supply to the heating system. This will allow the use of hot water in the summer season.

To long fuel combustion boiler is not working for heating radiators, but provide hot water for household use, it is equipped with electric Tan. Such boiler is called hybrid multifunctional equipment.

Boilers bodywork features (e.g., a fan for providing draft in the chimney, a pump for pumping hot water in the tubes) makes equipment volatile, on the other hand, a network connection allows automatic control process.

We offer to view the video: "solid fuel boiler long burning his own hands":

Apparatus pyrolysis coal-fired boiler with a water circuit

A feature of the operation of pyrolysis boilers is that in which the combustion chamber consists of two separate sections. In one section of the furnace is combusted solid fuel in the other - the products of combustion. When the cold season in the first division lay wood (often raw), steam appears when burned. To exclude the negative influence on the combustion process using a second furnace separated. That hot gas is moved in him, which removes excess moisture from the secondary air stream. Such a method is referred to as double blower. The two chambers are separated divided grate, where lie the wood, through which passes a primary blowing. Operation of pyrolysis boiler contributes forced draft, induced-draft fan created.

Operation of the pyrolysis unit:

• on the grate is placed a solid fuel (firewood);
• made ignition of the boiler, the furnace door is locked and switched exhauster;
• in the combustion process inside the chamber to create a high temperature, which promotes the formation of charcoal, carbon monoxide and volatile formations hydrogen and nitrogen;
• all these products are fed into the second chamber separated, where it is mixed into the secondary air stream and these products are burned;
• the heat from the combustion products of the re-supplied to the first chamber separated.

As a result of this construction, the boiler, it is maintained sufficiently high temperature by the combustion of wood wastes are decomposed thermally to form the pyrolysis gas. Thus, the solid fuel is used efficiently, and the heat from the waste combustion set in motion again.

Comparative analysis of models of solid fuel boilers with water circuit for the house

For error-free selection of the boiler on solid fuels for heating private houses, it is necessary to analyze its characteristics:

• the aggregates used in the pyrolysis re-air supply, which provides burning duration Bookmarks fuel, prolonging it to 10-12 hours, while the burning time similar tabs in the conventional boiler 4 hours. From the point of view of profitability, Pyrolysis boilers are loading less fuel and spend less;
• boilers occurs in the pyrolysis of wood combustion is practically no waste. Ash remains low. This in turn facilitates the maintenance of equipment not so often required to shovel the ash out of the boiler and flue cleaned;

The advantages of pyrolysis of solid fuel boilers for heating private houses a lot, but there are also some disadvantages that should be mentioned:

• high price;
• dependency on electricity - due to the use exhauster;
• in some cases, the discrepancy to the specs of power;

Useful advice! Before you purchase a solid-long burning boiler, read the reviews of its manufacturer. Very often there are models with inefficient pyrolysis process.

• incomplete use of boilers in power leads to the formation of tar clogging the flue;

Useful advice!To provide hot water at home, home to a large family, you should buy a model with built-in boiler or water heater to provide heat storage unit.

• convenience and service intervals. Pay attention to how often need to load firewood and clean the ash pan. Prefer models with bulk hopper, where cleaning is done once every three months, and the combustion duration reaches up to five days;
• materials from which the pot is made. Durable equipment is made of cast iron (service life up to 30 years). The coil for hot water supply has to be made of steel or copper.

Current models of solid long burning boilers can replace gas completely. Besides, due to high performance, they are environmentally friendly and economical. Purchase of coal-fired boiler with a water circuit will be profitable when you consider all the requirements and parameters of the equipment.