Turbofan gas fired boiler with a sealed chamber

Weather in the house depends not only on the mood of the residents, but also by the warm atmosphere. In the literal sense of the word. You need for a comfortable stay maintain air temperature in living rooms at a certain level and a sufficient amount of hot water. With this object handles Turbofan gas fired boiler with closed combustion chamber. What distinguishes the heating device open or closed? How to calculate the power and performance of a two-circuit boiler? And finally, what a gas boiler it is suitable for your home or garden? Along with the online magazine HouseChief.ru understand these issues much easier.

What does the equipment

Turbofan boiler - universal equipment. The system allows to heat the water and to heating, and for water heating. These systems are installed not only in private houses but also in apartments. They can be used as a primary source or connected as needed.

Closed combustion chamber - that is, and how it differs from the open

When choosing a wall equipment should immediately determine the combustion chamber: open or closed. What is it, and how they differ among themselves, consider at this point. The main difference lies in the air supply mode and the subsequent withdrawal of the products of combustion.

In an open cameo thrust is maintained in a natural way. As a result of the atmospheric space consumed a certain amount of oxygen, this often has a negative impact on the health of people. Eliminate this detrimental effect helps reliable ventilation. A closed type of equipment during its operation does not affect the indoor air quality. All of the processes taking place within the wall of the boiler.

Attention! gas boiler installation with open combustion chamber manufacturers recommend be performed in a separate room.

The closed chamber of air supply and removal of smoke is carried out on a single pipe. Its installation is carried out in the outer wall of the house. equipment efficiency sufficiently high, as the incoming air is preheated by the combustion products.

Knowing this feature, the question of which is better combustion chamber - open or closed, you can not even ask.

Apparatus wall gas boiler a bypass

Heating equipment is compact. Apparatus wall gas boiler a bypass requires the presence of three main modules: a burner, a heat exchanger, an automatic control system.

The operating principle of the closed type boiler

Works closed type boiler as follows:

• cold water, once inside the enclosed chamber of the heat exchanger, heated by the flame of a gas burner;
• boiling water, moving along the heat exchanger, provides the heating of water in the second circuit and the air outside the boiler;
• sensor system It allows you to adjust working mode and quickly to prevent the problem.
• Pressure compensation resulting from increased fluid volumes used expansion tank.

Characteristics wall gas boiler a bypass

When choosing a suitable heating equipment with a closed chamber should pay special attention to its specifications. The correct choice will create a comfortable environment inside the house during the heating enough water.

Power and Performance

Power is a basic criterion when choosing a gas boiler with a sealed chamber. It should be sufficient to generate the required amount of heat. Select your desired capacities It depends on many factors:

• the size of the heated space;
• the insulating properties of materials used in building construction;
• quality insulating walls and the ceiling;
• location of the house.

Comment

Sergei Kharitonov

Lead engineer for heating, ventilation and air conditioning "GK" Spetsstroy "

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"If the ceiling height of 2.5-3 m, the necessary heat insulation work performed under calculation can be tentatively assumed that require 1 kW output for every 10 squares. The resulting value must be multiplied by the coefficient of 1.3-1.35. "

The increase in the calculated power at 30-35% to avoid overloading the equipment in the process of heating the house and heating the required amount of water. On the market are combi boilers with a wide range of capacities. The performance of the device is important when installing the flow model. In the absence of boiler number of concurrent intake points will be limited boiler capacity: it can heat a certain amount of water to a predetermined temperature per unit time. Most models has several meanings performance: Water outlet temperature will be 25 ° C or 35 ° C higher than at the inlet.

Attention! For an average family is optimal performance in 10-11 l / min by heating water to 25 ° C and 8.7 l / min at a temperature rise of 35 ° C.

Especially for our readers edition HouseChief.ru created a handy calculator that takes into account many parameters for accurate calculations.

A calculator for calculating the required power of the gas boiler

type heat exchangers

Gas combi boilers can be either with a secondary heat exchanger bitermalnym. Each type has its own distinctive features that define its working principle and technical characteristics. We offer to meet with every kind of detail.

Combi boiler with a secondary heat exchanger

The boiler comprises a primary and a secondary heat exchanger. Pervichnyy- curved tubular structure, wherein the coils are joined plate edges. Supplied with the input and output pipe.

Secondary - compact plate type. Used for heating water. It is located below the combustion chamber. Complete with four nozzles. It has two loops through which the liquid is moving in opposite directions. first used circulation heated coolant, and the second - for heating water.

Boilers with heat exchanger bitermalnym

The design of this type of equipment involves pooling the two heat exchange circuits in a single unit. Heated water is circulated through the central channel, which is arranged around the pipe, for moving the coolant. Such equipment is much more compact models with a secondary heat exchanger and has a lower cost. However, the design concept facilitates rapid scale formation, causing reduction in the cross channel size. As a result, performance is reduced, and the characteristic noise.

Comment

Sergei Kharitonov

Lead engineer for heating, ventilation and air conditioning "GK" Spetsstroy "

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"If the tap of the heating equipment with heat exchanger opens bitermalnym rarely increases the likelihood of scalding hands due to excessive heating of the water inside the circuit."

Such boilers with the closed chamber is complicated to manufacture. Due to the large number of joints significantly increases the likelihood of leakage. At infringement of working capacity of equipment to restore it will be quite difficult.

material of heat exchangers

Heat exchangers for gas combi boilers can be made of:

• of stainless steel. Durable element with low thermal conductivity level;
• galvanized steel. Affordable option with a short life;
• copper. Good performance at high cost.

types of burners

May be:

• single stage. They do not have the intermediate modes. Required heating mode is maintained by the periodic ignition of the burner;
• two-stage. You can select either the full power 50-60% of the nominal value. Economical one-step;
• modulating. Expensive option that allows you to reduce operating costs. Automation allows you to set the power consumption at any level. Reducing the number of inclusions reduces fuel consumption by 10-15%, prolonging burner life.

Attention! Boilers with modulating burners are the best choice. They will maintain the room temperature and the degree of heating water to a predetermined level.

Automatic control and protection levels of authorities

Automatic wall-mounted gas models constantly:

• tracks cravings chimney;
• controls the flame;
• check gas pressure.

Attention! If a parameter does not meet the regulatory requirements, automation will not allow the inclusion of the gas fired boiler.

Some models have additional features:

• temperature stabilization. Can control the degree of heating coolant or room temperature. The second preferred embodiment;
• post-circulation mode. Eliminates coolant after boiling off the burner due to its circulation along a contour to achieve a certain temperature;
• antifreeze. It is useful for houses and buildings with occasional accommodation. It assumes economical mode in which the coolant temperature is maintained at + 5 ° C;
• summer modeIn which the double-boiler is used only for heating water;
• the ability to connect to the "warm floor" system or solar cells.

Dimensions and appearance

The size and appearance of the wall-mounted boiler is largely dependent on the manufacturer. When you select a specific model should focus on the installation site.

Advantages and disadvantages

Wall pattern with closed combustion chamber has the following advantages:

The disadvantage is the complexity and the high structural performance requirements for water quality.

Select Turbofan gas fired boiler with closed combustion chamber by brand

Characteristics, service life and cost of gas fired boilers depending on the manufacturer. The most expensive is the equipment manufactured in Europe: Beretta, Baxi, Ferroli, Ariston in Italy; Viessmann, Vaillant, Wolf in Germany. Korean Navien - worthy competitors. Such gas equipment differs stability. Most Italian and German models calculated at the gas pressure of 2 atm.

Among domestic manufacturers of wall mounted boilers with sealed chamber popular Danko and Proterm. With the same functionality they are not as sensitive to surges and capable of maintaining performance at low gas pressure. In between are wall-mounted gas boilers Bosch. Under the trademark heating equipment with a sealed chamber is produced not only in Germany but also in Russia.

Related article:

Gas-fired boilers for heating private houses. In the paper, we consider the criteria for choosing a gas boiler, varieties, peculiarities of application, the rating floor and wall units, correct installation of your own hands.

Installation of a bypass gas boiler

gas equipment connection must be made by specialized services. Installation of a bypass gas boiler is made as follows:

Photo	Description of work
	Using a stencil, the supplied gas wall model, carry the marks on the wall, piercing the paper with a pencil. For proper use of spatial orientation level.
	Drilled holes to attach the mounting bracket.
	Fasten the mounting bracket.
	Prepare the hole for the flue.
	Install wall-mounted boiler on the mounting plate.
	Assembled and installed chimney. You can invite a gas service to connect a bypass gas boiler.

Related article:

Quality and according to the rules established flues for gas boiler in a private house They are an important component of effective heating system. In this article we will talk about how to properly arrange the equipment based on established standards and requirements, it was not necessary to alter the chimney.

Share in the comments what your gas boiler (with the combustion chamber is open or closed), and why.