What are the advantages of a closed combustion chamber
The very first and main plus is safety and less harm to health. In an open combustion chamber, air (oxygen is needed for the combustion process) is taken from the room where the boiler is installed. Also, combustion products are thrown into the room. In a closed chamber, air is taken from the street. Gas combustion products can also enter the room. Therefore, from the point of view of daily operation, such boilers are safer for humans.
Next is the ease of installation. Do not install a boiler with an open chamber in a room without an exhaust hood. In addition, the area of the room must be appropriate (depending on power). Boilers with a closed chamber can be installed in a small room without an exhaust hood. These are the advantages of boilers with closed combustion chambers, but there is also a disadvantage. In particular, this is the need for coaxial chimneys for air supply and exhaust gases.
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Documents
Boilers with a closed combustion chamber
The design of such a device is the most productive, since the gas entering it is burned almost to the end. Smoke has less toxic properties, in contrast to the type of combustion chamber considered above.The presence of a chimney is not necessary for him.
Principle of operation
The operation of gas boilers with a closed combustion chamber occurs due to the fact that air is forcibly sent to the zone where combustion occurs. The design of the heating unit has undergone some changes, and is a chamber, inside which there is a nozzle and a channel for supplying air from an external fan. Between the double walls is water. When the gas burns, it is heated, and the smoke exits through the chimney under pressure, which creates a supercharger, over long distances. Short chimneys are often used to carry the smoke out. In such cases, they are installed horizontally. Air enters the boiler in the same way that the ladies are removed. Due to the double walls of the chimney, the intake air is heated by the heat of the exhaust.
Advantages and disadvantages
A number of advantages of boilers with this type of combustion chamber include:
- minimum fuel consumption when compared with the consumption of open burners;
- if the turbine is in working condition, the thrust and stability of the boiler is guaranteed;
- suitable for installation in multi-storey buildings, since it is not necessary to build a chimney. Smoke is emitted under pressure over a distance of more than three meters;
- does not require the creation of a separate room or the provision of continuous ventilation. The gas mixture is prepared together with outside air.
In any complex unit, in addition to the advantages, you can always highlight a number of disadvantages that will help you make the right choice:
For boilers with this type of combustion chamber, it is quite often necessary to undergo maintenance
When checking, you should always pay attention to the condition of the turbine, clean the blades and lubricate.
The turbine has a limited lifespan. This is common to all units that have moving parts.
The combustion area may freeze
This happens due to the fact that the chimney is too short and in bad weather conditions in the form of wind and frost can promise an accident. Models that are produced in our time are equipped with additional parts in the form of plugs that react to the temperature from the outside. Such structures are more prone to breakage.
The noise from the boiler is at a fairly high level, it is created by a working turbine. Over time, the bushings wear out and the blades become dirty, which contributes to an even greater increase in noise.
Although fuel consumption is economical, the same cannot be said about electricity. The turbine and electronic control system needs a large amount of electricity.
Which type of combustion chamber is better to choose: open or closed?
Gas boilers with an open combustion chamber are rarely installed. They are usually installed when there is not enough money for wall-mounted boilers (for budget floor standing). Or they put it when, when there are partial interruptions in the light. They also serve as a good choice in houses with a large area where there is no stable power supply.
Boilers with a closed combustion chamber are the most popular and widespread, because they do not need to create boiler rooms, but act in their role themselves, accommodating everything you need in a size similar to one kitchen cabinet and much more economical than floor standing ones.
Autonomous gas heating is an effective alternative to centralized systems. When installing it in an apartment, the owner has the opportunity to turn on / off the heat at any time if necessary, as well as keep a face-to-face account of the gas spent, which ensures the reasonable use of resources.
The most popular for autonomous systems is a wall-mounted double-circuit gas boiler with a closed combustion chamber. It has a sufficient number of advantages over single-circuit counterparts, as well as with floor types of structures.
