Pros and cons of the parapet gas boilers. Parapete gas boilers for heating a private house how to choose. Distinctive features of parapet gas boilers heating
The parapent gas boiler is a CO apparatus and a hermetically isolated combustion chamber, which is used to heal the coolant and water in gVS system. He carries out the fence clean air and the removal of combustion products outside the room, excluding carbon monoxide gas to boiler room.
Features of the device
The case of such equipment has a rectangular shape, which adds convenience when mounting, and the method of its attachment can be left, right or universal (double-sided).
Enjoy the greatest popularity parapet boilersThe power of which does not exceed 15 kW, although there are more powerful samples for 35 kW and more on the plumb market.
Difference from analog
At the time of development, the boilers with a convector conceived as a replacement wall technology Similar destination. After all, their predecessors require frequent maintenance, they are capricious and need high quality Gas.
It is believed that a new type of heating technique is less demanding in operation and does not need frequent maintenance. In addition, there is no binding to chimney, which is a significant advantage and makes it possible to install in any convenient room having an outer wall.
Place Installation
In most cases, the parapede boiler is fixed in a niche under the window, where the radiator is usually placed. The main difference from wall and floor devices is the power range, the installation method and equipment of the output channel. Currently, this unit is a convector and gas boiler at the same time, and can be installed not only in country houses, but also in apartment buildings.
The only thing that is worth remembering is the complete energy efficiency of the device, because it will require a continuous supply of electricity to its functioning. This is completely similar to similar turbocharged devices designed to work in the heating system with forced circulation Energy.
Device device
Thanks to the design features and type of destination, such devices firmly occupied the niche of the most popular elements of the heating system. Their device allows you to universally use the unit in different conditions.
Contours
The parapet boilers, like most of such aggregates, can be single-circuit or double-circuit, so they perfectly cope with the Water Heating Task for household needs Where there is no hot water supply, and do it simultaneously with the fulfillment of the main purpose.
Chimney
For the normal functioning of the device, it is not necessary to preserve the vertical chimney, since the process of outputting combustion products is performed through the through hole in the wall.
Such a coaxial chimney consists of two pipes that are interconnected. One of them is responsible for the supply of oxygen, and the other for the withdrawal of carbon monoxide.
Convector
The convector integrated into the boiler housing allows you to do without an additional installation of radiators and other heating devices, if it won't disrupt the thermal balance.
In order to create a comfortable microclimate in the room, it is necessary to correctly pick up the parapent boiler, after reading it with its technical characteristics.
Main advantages
Having familiarized with the features of the design heating device and its application can be determined by the main advantages with which it possesses:
- closed combustion chamber and, as a result, the possibility of installation anywhere;
- the presence of convection holes, thanks to which you can do without additional installation of convectors;
- power sources - gas and electricity, and therefore, you can install the device in urban apartments;
- a large selection of models with a power corridor from 15 to 40 kW, which facilitates the selection for premises with different areas;
- the presence of single-circuit and double-circuit boilers;
- modern design, which allows you to install the device in a prominent place;
- low cost, thanks to which the boiler becomes available to all segments of the population.
Right choice
Naturally, various models differ in the technical parameters that directly affect the advantages and disadvantages of the boiler.
Reliability
To judge the reliability of the device, it is necessary to figure out which thickness steel of its housing. To great regret, some manufacturers neglect such a rule and do not indicate this parameter on the heat exchanger packaging.
The optimal thickness of the steel wall is considered to be the parameter within three millimeters. If the thickness of the case exceeds this value, heat exchanged processes will be slowed down, which will certainly affect the comfortable heating of the room.
Along with the metal thickness, the indicator of its quality is very important, which can be determined by the level of permissible pressure specified by the manufacturer. Of course, the higher the indicator, the better and rushing the unit.
Economy
The economy of parapet boilers speaks their design and efficiency in the work. To find out how economical the heat exchanger is, it is necessary to find out its efficiency. It is this parameter that best can tell about the ability of the device to save energy resources.
To date, the overwhelming majority of manufacturers seeks to conquer the market, therefore watches the energy-shocked qualities of their products. So, the optimal value of the efficiency can be considered 90 - 93%.
Remember, this is the only figure that will most definitely tell you about the efficiency of the device. However, it is still necessary to take into account the features of the heated room, its size and the degree of thermal insulation.
Technical specifications
When choosing heating boiler It is necessary to pay attention to its dimensions, power and placement of connectors and fasteners. All these indicators affect the mounting process and the placement of the boiler.
Carefully monitor the execution of the connection to the water supply and gas highway (left, right). This does not concern the devices with a universal (double-sided) connection method.
The capacity of the power is hardly inferior to the efficiency of the equipment. From the optimally selected parameter will depend on the thermal balance in the room and fuel saving. If power is unnecessary, you will come across overalls of gas and electricity.
The average calculation looks like 1 kW of 10 m² of premises, but there is no thermal insulation, wall material and other features of the building, so desirable to double the digit. Thus, the negative effect of drafts, thin walls, dilapidated window frames will be neutralized.
Installation
Parapete boilers are installed on the same principle as convectors. First of all in outdoor wall Create a hole with a small diameter for removal of exhaust gases and oxygen intake.
The output point is best equipped next to the window, which will allow access to control over its working condition and, if necessary, maintenance. There are a number of rules according to which they spend mounting work. They are simple enough and can be done with their own hands at the following steps:
- cuts coaxial chimney;
- the first air conduit is installed;
- a plumbing pipe is connected;
- fasteners are tightened, the heating device is installed;
- the second nozzle is mounted;
- under the tilt set smoking sections;
- sections are connected to the nozzle;
- the protection is mounted, pipes for water supply are mounted, the expansion tank is connected.
Requirements regulating connection gas equipment, so high that in some cases installation is impossible, for a number of reasons. The parapent gas boiler has a principle of operation other than the classic analogues. Changes in the domestic device, slightly reduce the requirements associated with the connection, which makes it possible to install, even in apartments of high-rise buildings.
The device of the parapet boiler heating on gas
The inner device of parapet gas equipment was designed to prevent the oxygen burning from the room in which the boiler was installed. For this purpose, several changes in the design were introduced. As a result of modifications, a gas-powered boiler was obtained by the following characteristics:
The internal device and the operation of the parapet boiler, largely resembles what is used in the aggregates of the classic design. But, there are differences that make it possible to widely use equipment.
Than the parapet boiler differs from chimney
Non-volatile parapes gas boiler - this is an aggregate closed type. The combustion of gas and all other processes occur in a fully sealed closed carriage chamber. The main difference from the classical aggregates is several characteristics:- Lack of classical chimney pipe. In classic boilers, the air fence is carried out directly from the room. After burning gas, combustion products go to vertical chimney under the action of natural traction. In the parapet equipment, the air fence and removal of combustion products occurs with the help of a chimney pipe.
- The special design of the furnace chamber is a steel heat exchanger, two burners, a GWS coil, are concluded in a hermetic chamber connected to coaxial chimney. The air fence is carried out according to the outer contour of the chimney pipe, after which it comes to the burner from the bottom. The heated air passes through the vertical heat exchanger and is derived from the housing of the boiler, through the core of the coaxial pipe.
The normal amount of gas consumption in the parapent boiler, by 10 kW, will be about 1 m³ / hour. The double-circuit unit will spend approximately 15-20% more than fuel required for the heating of the DHW.
What a parapet boiler is better to choose
When choosing any model of the heating boiler, focus on its heat engineering characteristics and additional functions. The calculation of the aggregate is taken into account, the possibility of heating water for household needs, as well as a plant manufacturing heating equipment:- Performance - average power indicators, are calculated by 1 kW \u003d 10 m² formula. This formula is suitable for well-insulated buildings in the middle regions of the Russian Federation, which have the height of the ceilings not more than 2.7 m.
- Functionality - a parapet one-mounted gas boiler, works only on heating. To connect a DHW, you will need to install indirect heatingWhat will require additional financial costs. Two-door parapety gas boilersIn this respect, it is convenient, since they have a built-in water heating function and a switch that allows you to translate the unit for summer or winter mode Work.
- The manufacturer is the rating of the most reliable boilers, heads German manufacturers, Austrian and Czech models immediately behind them. Domestic parapet gas boilers, with a closed combustion chamber, have an attractive cost and good heat engineering characteristics.
The models manufactured by plants located in the near abroad are popular with popularity:
- Household gas parapet boilers of Russian production:
- Lemax;
- Hephaest;
- Barsky Mashzavod;
- Helios;
- Danko;
- Condo;
- Heatline;
- Taganrog gas equipment.
- Ukrainian gas heating boilers parapet type, for apartments and private houses:
- TERMOMAX;
- Aton;
- ATEM;
- Mimax;
- TERMOTECHNIK;
- Lighthouse;
- Dani;
- Miscurities;
- Ross;
- Hearth.
How to install a parapent heating boiler
When installing the parapet boiler, the technical conditions and requirements apply to the room where gas equipment, connected chimney, and the like will be installed. The order and rules of the installation are negotiated in, and.It is allowed to install parapet gas boilers in a private house or apartment multi-storey house. At the same time, the room must comply with the minimum requirements of the above-mentioned regulatory documents. During installation, it is required to strictly follow the order and rules of installation.
Requirements for the room under the parapet boiler
Installation restrictions, negotiate the minimum size and height of the room used for the needs of the boiler room. Additionally, the requirements associated with lighting, ventilation type, and the like are described:- Parapet boilers up to 30 kW, can be installed indoors, with with total area up to 7.5-8 m². It is allowed to use the kitchen and household premises.
- The minimum ceiling height is at least 2.2 m.
- Room ventilation - a working supply-exhaust ventilation must be present in the boiler room. Doors are installed without thresholds. Necessarily the availability of opening windows.
- Lighting - for each 1 m³ of boiler room, should account for at least 0.03 m², window opening.
- Features of operation - the maintenance of gas equipment is carried out at least 1 time per year. Together with the boiler performance, work is checked support and exhaust ventilation. About the verification is drawn up with an act.
- Commissioning of the boiler is possible only after the examination by the representative of the supervision bodies, compliance with all requirements relative to the correct connection of gas equipment.
Chimney for the parapet boiler
Connect the parapet boiler to the traditional vertical chimney cannot be connected. Internal design, makes it possible to connect an exceptionally coaxial pipe. With simultaneously connecting several gas boilers at once, the use of vertical coaxial chimney.Proper connection K. horizontal chimneymust meet several requirements:
- The horizontal portion, the total should not exceed 3 m.
- When covering slabs, a special block is used - cutting.
- On the head of the chimney, the condensate and the wind protection is installed.
- Chimney is installed under a slight tilt from the boiler to prevent condensate running inside the device.
How to protect the parapet boiler from the wind
The parapet models installed properly work almost without complaints. Playing the boiler, indicates the presence of disorders when connecting the chimney, incorrect automation settings and other problems.If the intensity of termination of work is greater than 1 time in several heating seasonsIt will be necessary to eliminate the source of failures in work.
The reasons why the gas parapet boiler can be shred, the following:
- There is no wind protection on the chimney head. The casing made in the factory conditions already has a special insert that protects against wind gusts. Protection can be made from any galvanized steel, attaching it to the casing with press-washers or rivets.
- Incorrect settings are set - so that the parapet boiler does not bloom, it will be necessary to lower the allowable gas pressure, in which the module will maintain performance.
- Insufficient intensity of thrust - The device of the gas plant is made in such a way that the slightest disorders in the traction characteristics will lead to the boiler shutdown. To eliminate problems, check the correctness of the smoke connection and correct the assuming errors.
To prevent possible shutdowns from the boiler as a result of wind gusts, it is better to entrust the installation of the unit by a qualified specialist licensed to carry out these works.
One way to organize an economical and very effective system For heating at home and heating hot water in domestic purposes - these are parapent gas boilers. It is worth buying such equipment in the event that the device is not necessary for a private house, but for urban apartments. Such a wide sphere of use is due to their constructive features.
Distinctive features of parapet gas boilers heating
The line of any manufacturer of this equipment will provide for models with a wide power range, up to 45.0 kW. Thanks to this, buyers will be able to choose a wall-mounted gas boiler for a building with an area of \u200b\u200bup to 450 sq.m.
Installing the units of the presented type can be made in the most convenient place. They can be hung on vertical planeSo and convenience to locate on the floor. The indispensable condition is to place the apparatus near the outer wall, so the chimney must be placed horizontally and pass through the wall to the street.
All parapent gas heating boilers are performed with hermetic fireboxes. This means that for the fuel mixture, oxygen is closed from the outside, through one of the coaxial chimney pipes. This feature It is very convenient, it makes it possible to mount the unit directly in the residential area.
Functionality and equipment of gas wall boilers of parapet type
The devices can be equipped with gas-burner devices of various designs:
- single-stage
- two-speed
- modulated.
Modes of work are also different. There are devices only for heating, and there are models capable of preparing hot water To meet economic and household needs.
The aggregates are equipped with thermal exchanges from cast iron, copper and steel. Each of the species has its own pros and cons and should be seamless based on the operational conditions. For the ignition of the gas equipment, an electronic or piezoelectric ignition system is usually provided.
Advantages and disadvantages of parapet models
Positive features of the equipment are as follows:
- a wide scope of application due to the lack of need in additional facilities;
- small dimensions and mass;
- very affordable cost, especially compared to other devices;
- ability to use without a heating circuit for one room due to the presence of convection holes in the housing.
The lack of heating with parapet gas boilers is the same as in other heat generators using "blue fuel": the need to obtain permission of controlling organizations. For the approval of all parts of installation, obtaining a positive solution and sealing equipment can take several months.
For many owners of private houses, the choice of the heating boiler represents a difficult task.
Need to pick up optimal optionWith the most successful set of functions and characteristics.
This is possible only in the presence of sufficient knowledge about the design and principle of the operation of gas boilers, the understanding of their characteristics and advantages.
Exist different types Gas units with their own features and opportunities.
Consider one of the groups of such equipment - parapet boilers.
Parapete gas boilers are heating units that combine signs of atmospheric and turbocharged models. They are completely non-volatile, but equipped with a closed combustion chamber.
A feature of this design is the use of a coaxial chimney, which is joined to the rear of the unit and is excreted into the street. The withdrawal of smoke and the fence of fresh air occurs as a result of convection processes.
When you start the boiler to work in the room there is no odors, there are no traces of soot and other combustion products.
In addition, the room does not fade oxygen, which allows you to save the microclimate in the normal state.
Another feature of the parapet boilers is the possibility of using as independent heating elements. At the bottom of the case there are special holes, through which hot air leaves.
It circulates indoors and provides a set temperature in it.
What is the difference from the usual?
The main difference of parapet models from conventional boilers is the ability to get increased safety from non-volatile design and the lack of impacts on the inner atmosphere of residential premises.
If an ordinary atmospheric boiler consumes the ambient air, actively burning oxygen and demanding constant ventilation, the parapet models are fully separated and the air exchange mode is not disturbed.
Another difference is the ability of self-heating of air, making a parapet boiler such a stove.
Pros and cons
The advantages of parapet boilers should be attributed:
- lack of electricity consumption;
- inner air is not used, there is no additional load on the ventilation system;
- there is no need to attach to the overall chimney;
- low fuel consumption;
- efficiency, practicality, resistance to external loads.
- installation requires to do a hole in the wall from 25 to 31 cm with a diameter;
- installation is possible only near the outer wall;
- there is no possibility to ensure full-featured control and protection of nodes and parts of the unit (in non-volatile models).
Despite the existing shortcomings, the parapet boilers are highly valued by users. The demand for them is constantly growing.
Device
The design of the parapent unit almost completely repeats the device of any non-volatile boiler.
The coolant enters the primary (main) heat exchanger where it gets high temperature and enters a three-way crane (mixing knot). It occurs in a hot liquid of a colder "return", as a result of which the temperature of the US receives the parameters set by the mode.
In dual-circuit models, the coolant passes through the secondary heat exchanger, where the DHW preparation occurs.
The difference is the structure of the combustion chamber and chimney, which are not typical for such devices. For the output of smoke, a coaxial double tube is used, on the external cavity of which comes fresh airAnd the internal is chimney.
The air is sued in a closed combustion chamber and provides the combustion process. It expands from heating and displaces the smoke and other gases arising from burning fuel. Some models are equipped with two separate pipes, one of which serves air, and the other displays smoke.
This option allows you to strengthen convection and stabilize the processes of movement of gases.
Views
Exist different variants The design of the parapet boilers, which can be divided into specific features.
By Montaja method:
- wall. Installed by a mounted way to the outer (carrier) wall. Under the installation conditions are limited by weight and power;
- outdoor. Installed on the floor. If it is wooden, a non-flammable stand is required. Weight restrictions, dimensions and power do not have.
According to the method of power supply:
- energy dependent. The design contains nodes requiring the use of electricity - circulating pump. electronic control board, etc.;
- non-volatile. Operate only on mechanical management. A good choice For remote settlements and locations with power interruptions.
For set of functions:
- single-mounted. Capable only to ensure heating of the coolant;
- double-circuit. In parallel with heat heating, they can prepare hot water for household needs.
NOTE!
Most users prefer single-mounted outdoor models that demonstrate the greatest efficiency.
Principle of operation
The operation of the parapede boiler differs little from the usual functioning of gas convection units.
The burner heats the coolant, which gives part of energy to the preparation of the DHW or is displayed in the heating circuit after preparation in a three-way crane.
There are no changes in this. A specific feature is the ability of the boiler to perform the function of the convector, which allows not to install radiators indoors where the unit is located.
In addition, a special way of supplying air and withdrawing smoke is used. When Ignoring the burner in the upper part of the combustion chamber, an excessive air pressure arises, forcing it to be outlined along with the smoke.
At the same time, a vacuum generates a fresh flow sawmaker through the outer part of the coaxial tube is formed in the lower part. There is a difference in pressures like the one that is used in ordinary furnaces.
This allows you to use a closed combustion chamber without turbocharger fan.
In some structures, the chimney and air intake nozzle are made separately, but this does not change the principle of operation.
Top 5 Parapete Gas Boilers Rating
The parapet boilers are deprived of many shortcomings of wall models, so their range is constantly increasing.
Consider the most popular models:
Lemax Patriot-12.5
Outdoor non-volatile parapet pot of domestic production. The power of the unit is 12.5 kW. It is suitable for premises of up to 125 square meters. m.
The main characteristics of the aggregate:
- Efficiency - 87%;
- gas consumption - 0.75 m3 / hour;
- dimensions - 595x740x360 mm;
- weight - 50 kg.
The boiler is one-connecting, but it is possible to join the external boiler. This will allow you to get a full-fledged DHW line.
Lemax Patriot-20
Outdoor parapet boiler manufactured by the Taganrog Plant. The power of the unit is 20 kW, so the size of the room should not exceed 200 square meters. M..
Only the basic task is performed - heating the coolant. If necessary, to expand the functionality should be purchased and connect an external cumulative boiler.
Parameters of the boiler:
- Efficiency - 87%;
- the temperature of the coolant is 80 °;
- pressure in the system - up to 2 bar;
- gas consumption - 1.2 m3 / hour;
- dimensions - 670x790x400 mm;
- weight - 67 kg.
Users and specialists note the low fuel consumption, which increases the efficiency of the unit and allows you to get a noticeable savings.
Lemax Patriot-16
Another sample of domestic heat engineering. Parapete floor boiler with a capacity of 16 kWintended for use in rooms up to 160 square meters. m.
Like other models of the Patriot series, it is a single-mounted unit with a steel heat exchanger.
His characteristics:
- Efficiency - 87%;
- the temperature of the coolant is 80 °;
- pressure in the system - up to 2 bar;
- gas consumption - 0.95 m3 / hour;
- dimensions - 670x790x400 mm;
- weight - 67 kg.
The aggregates of the Patriot series with a capacity of 16 and 20 kW are the same design, only one of the models artificially reduced performance.
Lemax Patriot-10
Product of engineers from Taganrog. A 10 kW parapete boiler is suitable for a cottage or private house with an area of \u200b\u200bup to 100 square meters. M..
- Efficiency - 87%;
- the temperature of the coolant is 80 °;
- pressure in the system - to the bar;
- gas consumption - 0.6 m3 / hour;
- dimensions - 595x740x360 mm;
- weight - 50 kg.
NOTE!
Reliability and low fuel consumption make the parapet boilers Lemax Patriot as the most successful choice for all users.
Aton Compact 12,5E.
Gas parapet boiler Ukrainian production. The power of the model is 12.5 kW, and the maintenance area is up to 160 square meters. m. Non-volatile unit intended for floor installation.
The main parameters of the boiler:
- Efficiency - 90%;
- the temperature of the coolant is 90 °;
- pressure in the system - up to 1.5 bar;
- gas consumption - 1.39 m3 / hour;
- dimensions - 630x700x275 mm;
- weight - 50 kg.
The unit is equipped with a stainless steel heat exchanger, has a protective gas valve.
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The parapet boiler takes at very little space.
How to choose the right parapete boiler? Consumer reviews indicate the variety of models of this heating equipment. Today, the choice of the device can be carried out according to the following parameters:
- by the method of installation: wall and floor, left-sided and right-hand;
- by the number of contours: one- and dual circuit;
- according to the availability of automation: energy-dependent and non-volatile.
In addition, the classification of equipment is carried out by its performance. So, today you can buy a gas-parapet one-connecting boiler with a productivity of 15 kW to 40 kW. Choosing a double-circuit parapet gas boiler and reading his instructions, it can be noted that there is also a capacity of water to normal power. Thus, a device with a capacity of 12 kW-13 kW can heat up to 180 liters of water per hour, which is enough for a 4 water intake point.
In the number of circuits distinguish between and double-circuit boilers. The first option is equipped with a conventional heat exchanger. It has a plate structure, which increases the rate of heat exchange process between the flame of the gas burner and the heat carrier of the heating system. The heat exchanger is made of steel, 3 mm thick. This one construction material Provides the durability of equipment and high enough heat exchange rate. An increase in steel thickness reduces the degree of heat exchange between water in the heating circuit and the gas burner.
The design of the parapet boiler.
A double-circuit parapent gas boiler is equipped with an additional copper coil. At the expense of his work and prepares water for the contour of the DHW apartment or at home. Water heating is carried out only by flowing. Cumulative capacity Inside the boiler will significantly increase the dimensions of the equipment. Thus, it will be impossible to use it for mounting in a regular apartment.
Dimensions and dimensions directly depend on the performance of the boiler and the number of contours. Thus, the boiler the gas parapet one-connecting will be less and easier, compared with a similar device equipped with two contours. If you compare two single-circuit boilers, then there will be more that whose performance is higher. This is explained by the size of the gas burner and the heat exchanger.
How is the parapete boiler?
Inside there is a coil.
The body of the parapet boiler is performed from steel with a minimum thickness of 3 mm. Powder coating with the external and inner sides of the housing makes it resistant to the formation of corrosion. Even in conditions of high humidity, which is often observed in the kitchen, the gas heating element will retain a decent appearance and integrity. Tolstolic steel increases the stability of the device of the device to direct mechanical exposure. On its surface, dents and chips are not formed.
The device of the parapent gas boiler is characterized by simplicity and efficiency. The design of the equipment is as follows:
- steel case;
- closed combustion chamber;
- square and gas burner;
- coaxial chimney;
- steel heat exchanger, if it is a two-circuit equipment - a secondary copper coil.
Security system is presented:
- thermometer;
- thermocouple;
- sensor thrust.
Gas boilers Floor parawards do not differ from wall analogs. The difference is only in the capacity of the equipment. The weight and dimensions of the device increase with increasing power.
Read more to deal with the device of the parapet boiler will help the video:
Installing the parapent gas boiler can be made in any convenient place of the building. The main requirement - the equipment must be located close near the wall to remove the coaxial chimney into the street. The main advantage of parapet heating elements is a closed combustion chamber and coaxial chimney. These two structural elements allow you to mount the device in any convenient place, without fear for human health. After all, the sealed combustion chamber does not allow to penetrate the poisonous gas oxidation products inside the dwelling.
Coaxial chimney is a steel structure consisting of two pipes. One of them smaller diameter is located inside the pipe with a large diameter. A free space is formed between pipes of different diameters. Through this space, wall and floor parapes gas boilers produce air combustion of gas. Through the inner tube there is an energy oxidation products. As a result of the boiler, the air fence does not occur from the room. That is why the parapet heating devices do not need a separate boiler room with good ventilation.
Installing the parapent gas boiler with your own hands is strictly prohibited. Only specialists with the appropriate license must be installed. Connect the device to the gas highway only the employees of the gas service.
Installation of the parapet boiler is made similarly gas convector. Coaxial chimney is displayed out through the wall. The presence of wind protection is required! Next, the installation of gas pipes, the contour of heating and water supply is carried out.
How does the boiler work?
The flow of flow and the name of the structural elements.
If the non-volatile equipment has been bought, then its work begins with the Piezorozal button. As a result, the rebel or the primary burner of the boiler begins to burn. If the equipment is energy-dependent, that is, equipped with automatic, it starts to work using automation. However, the domestic market is more common non-volatile models due to their versatility.
The principle of operation of the parapes gas boiler is very simple. The main burner is flameled from the stobble. Its flame is directed to the heat exchanger, according to which heating contour coolant circulates. The burner works as long as the temperature of the coolant does not reach the top critical level. After that, the automation of the heating element is triggered. The gas valve overlaps. As a result - the gas burner goes out, while the scarlet continues to work. As soon as the temperature of the coolant in the heating circuit drops to the lower limit, the gas valve will resume the flow of the energy carrier on the burner. The latter will flame from the working stamp. Water in the heat exchanger will again begin to heal.
For the safety of the boiler answers several structural elements:
- first, it is a thermocouple, which is located in a gas burner flame;
- secondly, the boilers are equipped with an element for control for the presence of thrust;
- thirdly, there is a thermometer thermostat.
Buy a parapent gas boiler? The instruction is the document on which the choice should be based. The instructions contain information regarding the power of the device, the rules for its installation and operation.
The thermocouple from heat burner produces an electric current of a small voltage. It is fed to the gas valve and keeps it in the open position. If the flame inside the boiler for some reason goes out, the thermocouple stops the electrical current. The valve is automatically closed. Gas supply stops.
Wall-mounted parapet gas boiler in the context (rear view).
If there is no traction in the boiler, then the main structural element safety device (plate) - increases its temperature to + 65 ° C. The signal from it goes the gas supply valve. The latter closes and the gas burner stops working. Such a mechanism is characteristic of a non-volatile boiler. If the equipment connects to the power grid, then the control is controlled by automation.
The thermometer thermostat protects the boiler from overheating. Once the thermometer fixes the critical heat carrier temperature in the heating circuit, it transmits a thermostat signal. The latter also stops supplying gas to the gas burner.
The wall-mounted parapet gas boiler in its time was a worthy competition with ordinary wall heating elements, despite their multifunctionality. Thus, the latter were very demanding about gas pressure in the gas pipeline, their heat exchanger often formed a scale, they needed uninterrupted power supply. The parapet devices are not so demanding of pressure in the gas pipeline. Non-volatile models do not need power supply. Their coaxial chimney can be mounted as vertically and horizontally, which expands their installation.
Possible problems with gas equipment of this type
Ice formation on chimney.
Gas boilers for heating Parapete to their owners can create several problems. First, their hermetic chamber consists of two structural elements, which are connected with a porous, thermally resistant polymer-based material. If a maintenance The boiler is not held in time, then you can not notice how thermoplasty will lose its tightness. Carbon monoxide And other poisonous components of the exhaust gas can get into a residential premises and cause poisoning. It is because timely maintenance of parapet boilers - be sure.
Secondly, coaxial chimney in low-cost models is performed from steel ordinary brands. At the same time, the rules of operation of gas equipment requires only stainless steel when creating chimneys. Otherwise, accumulating on the walls of the chimney of soot and condensate can form a chemically active environment.
She eats steel walls. Durger gas inner pipe Enters the air current going to the gas burner. As a result, the gas chamber lacks oxygen for the full combustion of the energy carrier. Equipment performance drops. On the walls of the boiler, a soot is formed, which speeds up corrosion processes.
Thirdly, with coaxial chimney there is always a danger of strangling the burner flame by strong gusts of the wind. It is precisely why that producing the installation of the device, it is mandatory to establish protection against the wind.
How justified the use of parapet boilers?
The parapete boiler can be placed on the floor, right in front of the battery.
Parapete boilers today can make a worthy competition with similar full-fledged heating devices operating on gas. After all, the parapet equipment is characterized by compact sizes and dimensions, is not inferior to conventional boilers in terms of performance. The main advantage of parapet devices is the presence of a closed combustion chamber and coaxial chimney. This allows you to place the device in residential rooms. Chimney can be located both vertically and horizontally, which gives even more freedom in terms of placing heating equipment.
The equipment can also work as a boiler heating, and in parallel as a regular convector. In addition, the equipment can maintain the DHW circuit. The benefits of equipment include their durability, efficiency, long life, safety in use. The quality of the last parameter corresponds to the thermocouple, control of thrust and temperature of the coolant. TO possible problems There are poor quality coaxial pipes, late after-sales service, strangling the burner flame with strong wind gusts.
