How to choose a turbocharged gas boiler, operating principle, advantages and disadvantages

Turbo boiler or atmospheric boiler

An atmospheric gas boiler is designed in such a way that the air required for gas combustion comes from the room in which the boiler is located, and combustion products are removed through a regular chimney.
It is necessary to provide and organize additional air flow into the room. This point needs to be remembered when choosing a gas heating boiler. In atmospheric gas boilers, an open combustion chamber is installed, which increases the fire hazard, but if safety rules are followed, the risk of open fire is reduced to almost zero. Such boilers are cheaper, because... simpler. An atmospheric gas boiler operates more quietly and is also independent of electricity. A turbo boiler is more complex. Before choosing such a gas heating boiler, you need to understand that it has a different system. A turbo boiler has a closed combustion chamber, into which air is supplied using special fans, and combustion products are removed using an exhaust hood. This means that such a boiler operates with a lot of noise and requires a constant supply of electricity, requires additional installation of air ducts and is generally more expensive. However, turbo boilers do not burn oxygen in the room and allow you to save up to 30% on fuel due to better fuel combustion.

Gas boiler heat exchanger

A heat exchanger is a device where energy from burned gas is transferred to water. Heat exchangers are made from several materials. Cast iron heat exchangers are cheap to manufacture, however, they do not like temperature changes. Copper heat exchangers are the most efficient and economical, but are more expensive. Steel heat exchangers are the most versatile, and most gas boilers are manufactured with steel heat exchangers. Volatile or non-volatile gas boiler

Before choosing a gas heating boiler, it is necessary to take into account such a parameter as energy dependence. After all, there are boiler models that are equipped with an electronic control system or supercharging. Therefore, if power outages are common in your area, it is not recommended to buy such a boiler, because it will not be able to work without a constant power supply.

Various additional options when choosing a gas heating boiler

Weather sensor. It will be useful in cases where people do not permanently live in the house, but, for example, in the country.

Temperature sensor. It makes at least some sense if the boiler is installed in the room that it heats. Otherwise it's useless.

Magnetic system to combat scale. Useful in areas with very hard water rich in calcium.

You should not completely focus on these options when choosing a gas heating boiler; we recommend that you first concentrate on its power and efficiency.

Gas boiler Federica Bugatti 32 Turbo 30.6 kW double-circuit

Photo: pokupki.market.yandex.ru

The gas wall-mounted boiler Federica Bugatti ECO 32 TURBO 2-circuit is an effective, reliable equipment installed in private houses, cottages, apartments to create a heating and hot water supply system.

Gas boiler Federica Bugatti 32 Turbo 30.6 kW double-circuit

Advantages:

Flame control electrode
Protection system against running without water
Frost protection system
Overheat protection system
Smoke removal safety system
Power failure protection
Pump anti-blocking system
Safety valve 3 bar
Automatic air vent
Low voltage protection system
Brass hydraulic group
Heat exchangers VALMEX (Italy)
Pump GRUNDFOS (Denmark)
Gas valve SIT (Italy)
Electronic flame modulation
13 protection systems
Automatic diagnostic system
DHW heat exchanger type – separate
Closed combustion chamber

Features of the chimney device

The coaxial chimney system of a turbocharged gas boiler has two channels. The “pipe-in-pipe” device allows for several processes to be carried out simultaneously: drawing combustion air in from the street and exhausting exhaust gas outside. At the same time, thanks to the special design of the boiler, combustion air penetrates through the chimney directly into the combustion chamber.

To increase productivity, the coaxial chimney is equipped with an electric turbine. The rotation speed of the blades can be adjusted. This function is very important during pressure drops in the main pipeline, as it equalizes the ratio of components in the gas-air mixture. That is, it is possible to make the rotation of the turbine correspond to the gas pressure. Thanks to this design feature, the boiler burner operates throughout the heating season with maximum heat output.

Turbo boilers are equipped with automatic sensors that monitor the safe operation of the unit. In the event of an accident, they will immediately turn off the system and cut off the gas supply.

A gas double-circuit turbo boiler does not require the installation of a large chimney structure, so its installation is significantly simplified. There is no need to build a separate boiler room, because it does not take oxygen from the combustion room. Such a boiler can be installed in both residential and non-residential buildings and structures.

Rating of the best models of wall-mounted gas boilers

Oasis BM-16

This boiler can be used in rooms where the air temperature is not lower than +5 degrees; it is installed in strict accordance with the gasification project. It is perfect for houses or apartments, has high performance and a good efficiency of about 92%. The design has a reliable circulation pump, which allows you to easily raise the coolant to the level of the second floor.

The average service life is about 12 years from the moment of first launch. The heat exchanger is made of copper, the combustion chamber is closed, equipped with a fan to remove combustion products. The device’s security system has several levels; the boiler can independently carry out diagnostics. If errors are detected, their codes are displayed on the device display; there is a built-in condensate drain. The device is economical and consumes a minimal amount of fuel. The weight of the unit is small - it can easily be lifted by one person.

The chimney can be used coaxial or separate. The boiler runs on natural or liquefied gas, the coolant temperature is regulated from 30 to 80 degrees, hot water - from 36 to 60 degrees. When installing a hot water supply system, it must be taken into account that the minimum volume of passing water must be at least 3 liters per minute. Ignition is carried out by a built-in piezoelectric element.

Advantages:

High reliability;
Reasonable cost;
Self-diagnosis with display of all errors;
Built-in frost protection;
The design has a 6-liter expansion tank;
Several programmable timers.

Flaws:

Large overall dimensions;
Some sensors fail quickly.

Wall-mounted gas boiler Oasis BM-16

9. Haier Falco L1P20-F21(T)

A double-circuit design equipped with a bithermal heat exchanger, the unit can be installed both in houses and apartments. The device is characterized by the presence of several degrees of protection: it has a flame failure protection system, the circulation pump is equipped with protection against jamming. The heat exchanger has a sensor that prevents overheating, excess pressure, and lack of draft.

The heat exchanger is made of copper, the modulating burner is made of stainless steel, the hydraulic block is made of brass. The total power of the boiler is 20 kW, the coolant temperature is adjustable from 30 to 85 degrees, the heated area can reach 190 square meters, the volume of the expansion tank is 6 liters. The design has small dimensions - 700*400*320 mm. Combustion products are removed from the closed chamber using a metal fan through a coaxial chimney. The pressure range in the heating system is from 0.3 to 6 bar.

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Advantages:

High-quality bithermic heat exchanger;
Small sizes;
Reasonable cost;
Large heated area;
A whole set of protective systems;
A powerful circulation pump that easily raises the coolant to the level of the second floor.

Flaws:

The location of the inlet and outlet pipes is not very convenient;
Lack of Russian language on the control display.

Double-circuit wall-mounted gas boiler Haier Haier Falco L1P20-F21(T)

MORA-TOP Meteor

This boiler has a fairly simple control system, equipped with a monochrome liquid crystal screen and two handles - one regulates the temperature of the coolant, the second is responsible for heating the water. During production, all current safety requirements were taken into account: the device is equipped with a closed combustion chamber. The boiler can be installed in place independently - it is lightweight. The control unit is directly connected to all connected elements: it receives signals from sensors of pressure, temperature, volume of passing water, regular and emergency thermostats and many others.

Depending on the information received, the control unit increases or decreases the supplied amount of gas. The device is characterized by excellent efficiency, since it consumes exactly as much fuel as is currently required. The efficiency of the boiler is about 91%. The water is heated quite quickly - in just a few seconds. The design includes a safety system that prevents the burner from being turned on and off too frequently.

Advantages:

Easy to manage;
Makes minimal noise during operation;
The kit includes a room thermostat;
Heat exchanger overheat protection;
Withstands voltage surges well;
Convenient to service;
Releases a minimum of harmful substances into the environment.

Flaws:

When connecting to the electrical network, you will definitely need to equip it with grounding;
The power of the circulation pump may not be enough for the second floor.

gas boiler MORA-TOP Meteo

7. Buderus Logamax U072-12K

This boiler has a closed combustion chamber, is perfect for any heating system in a private home, and is very convenient to control. It looks very attractive. The case is made of thin-sheet stainless steel, the assembly is reliable, there are absolutely no backlashes. Initially, the device was developed exclusively for difficult climatic conditions.

The control system is based on the Open Therm protocol: it is very reliable, exactly fulfills all user requirements, the settings are fine, down to the degree, which cannot but affect the efficiency of the device. It more than covers household needs - one such boiler is enough to create a heating system in a house with an area of about 120 square meters. The boiler is a double-circuit, flow-through type, and produces about 12 liters of water per minute - this is quite enough for a family of three to four people or three water distribution points.

Advantages:

Small overall dimensions;
Light weight;
Excellent withstands significant voltage drops: up to 30% up or down;
Does not fade when gas supply decreases;
Has frost protection systems;
Makes virtually no noise during operation;
Piezo ignition;
The size of the flame is regulated by the ionization electrode;
Well suited to the Russian climate.

Flaws:

The hood fan quickly fails;
The pump power is often insufficient when there is a second floor;
Flimsy feed tap.

Buderus Logamax U072-12K

6. Viessman Vitopend 100

This design can be chimney or turbocharged. The first is allowed to be connected to a central chimney, which creates natural draft to remove combustion products. The turbocharged device is intended for installation in rooms where there are no special exhaust systems. All waste here is removed outside the building using a special fan.

The boiler body is made of reliable stainless steel, the assembly is reliable, there are no backlashes. Equipment power ranges from 10.7 to 23 kW. The heating system can reach a pressure of 3 bar. Inside the boiler there is an expansion tank with a volume of 6 liters. The coolant warms up to a temperature of 85 degrees, hot water - up to 57 degrees. DHW capacity is no more than 11 liters per minute depending on the temperature.

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On the front panel there is a liquid crystal display, a power button, a pressure gauge and two levers responsible for the temperature of the coolant and water. Additionally, you can purchase a room thermostat, which facilitates the operation of the unit.

Advantages:

Made exclusively from high quality materials;
Does not make noise during operation;
Small overall dimensions;
Only modern technologies are used in production.

Flaws:

High cost;
High price for components and spare parts;
Hydraulic tubes are made of composite materials, which is why they can quickly fail.

Viessman Vitopend 100

5. Navien DELUXE 16A White

This is a fairly good wall-mounted boiler, which is characterized by high-quality assembly and a long period of operation. The device is a dual-circuit type and can withstand low temperatures well, largely due to the presence of a freeze protection system. The circulation pump automatically turns on when the room temperature drops to 10 degrees and begins to intensively distill the coolant, preventing it from freezing. When the water temperature level in the system drops to 6 degrees, the burner turns on, increasing this indicator to 21 degrees.

Gas is consumed quite economically, which has a positive effect on the service life of the heat exchanger and the boiler itself. The device is able to operate even at a minimum gas pressure of 4 mbar. The unit can withstand serious voltage drops in the network and operates stably when the water pressure in the system drops. The kit comes with a remote control and there is also a voice assistant. Under the front panel there is a control unit equipped with a digital monochrome display.

Advantages:

Well withstands changes in water, gas and voltage;
Reasonable cost;
Convenient control using a remote control or a block on the panel.

Flaws:

In some cases, the automation fails;
Weak hot water pressure;
Makes a lot of noise during operation;
There is no automatic diagnostic system for the device.

Navien DELUXE 16A White

Bosch Gaz 6000 W WBN 6000-24 C

Designed to heat a room up to 240 square meters, the boiler is equipped with a closed combustion chamber and a plate-type heat exchanger. It is capable of producing about 11.5 liters of hot water per minute, combustion products are discharged outside the room using a coaxial chimney with a diameter of 60/100 mm.

The control unit contains sensors that monitor the flame size, are responsible for automatic ignition, and fan rotation speed. The boiler is also equipped with a three-stage pump and a 6.5-liter expansion tank.

The body is rectangular, on the front side there is a control panel equipped with a liquid crystal display, a pressure gauge showing the pressure in the heating system, and several adjustment buttons. All pipes for connecting communications are located at the bottom, which ensures ease of installation.

Advantages:

Quickly warms up the room air;
Installation is easy;
High efficiency, low gas consumption;
A large number of individual settings;
There is a piezo ignition.

Flaws:

Sometimes it produces atypical errors - to eliminate them, just disconnect the boiler from the network for a couple of minutes;
The circulation pump vibrates strongly during operation;
Condensation sometimes forms in the differential relay tubes.

Review of the BOSCH wbn 6000-24c Gas Boiler

Bosch Gaz 6000 W WBN 6000-24 C

NAVIEN Ace-24A Atmo

This is a wall-mounted boiler for a home or apartment, which is perfect for even the harshest climatic conditions. It has good economic indicators, can last for quite a long time, can easily withstand low pressure of water and gas, and ensures stable operation even with significant voltage drops.

Despite all these positive qualities, the device is not too expensive. The boiler assembly is reliable, there is a heat exchanger with good performance, due to which hot water is provided literally a few minutes after turning on the boiler.

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The pipes are located on the sides of the body, so the piping can be done both on the left and on the right side, thanks to which installation can be carried out even in rather cramped conditions. The new generation gas burner ensures silent operation of the boiler.

Advantages:

Good level of security;
Small overall dimensions;
Easy to use;
Acceptable price.

Flaws:

The circulation pump is a little noisy, but otherwise the boiler is perfect.

Navien ace 24.avi

NAVIEN Ace-24A Atmo

Baxi MAIN 5 24 F

Italian equipment of high quality, which rightfully takes third place in our ranking of the best wall-mounted gas boilers. It is a two-circuit mounted boiler, equipped with a closed combustion chamber, turbocharged. The equipment is designed to be connected either to a coaxial chimney or to a two-pipe system for removing combustion products. The device consists of a gas burner, the nozzles of which are made of stainless steel, and a bithermic heat exchanger.

The Grundfos brand circulation pump is equipped with an automatic air vent; electronic automation is concentrated on a special board. The volume of the expansion tank is 6 liters. In addition, the boiler is equipped with several sensors: heating, hot water, draft, flame level. The maximum power of the unit at the highest loads is 24 kW, it is designed for reliable heating of a house with an area of up to 220 square meters. It has small dimensions - 700*400*280 mm.

For ease of control, the boiler is equipped with a liquid crystal monochrome display and several buttons responsible for adjusting the temperature of the coolant and hot water; an automatic equipment diagnostic system is provided; if errors are detected, their codes are displayed on the display.

Advantages:

All necessary functions are provided;
Small sizes;
Reasonable cost;
A large number of service centers.

Flaws:

The electronic board does not tolerate voltage surges well, so it is best to connect the boiler through a voltage stabilizer;
The maximum power of the equipment is 24 kW.

BAXI MAIN5 GETTING TO KNOW

Baxi MAIN 5 24 F

1. Protherm Cheetah 23 MTV

A fairly popular wall-mounted gas boiler that can be used in both private and apartment buildings. It has high performance and reasonable cost. The device is equipped with a closed combustion chamber, making it absolutely safe to use. Thanks to this functional element, the unit can be installed in any type of room, even one not equipped with a chimney. Combustion waste is removed using a coaxial system.

The assembly of the device is of high quality: the body is made of high-quality stainless steel, the service life is long, but the initial setup, like other boilers, must be carried out by an authorized specialist. The equipment is convenient to operate and has a high efficiency of more than 94%. There are several heating modes: holiday, winter, summer.

The design has an automatic air valve that removes excess air from the heating system, frost protection is provided, and there is a system responsible for the size of the flame and draft.

Advantages:

Ease of installation and operation;
Does not make noise during operation;
Preventive inspections should not be performed too often.

Flaws:

There is no service documentation;
The circuits depend on each other - if hot water is turned on, heating of the coolant stops.

Protherm Cheetah 23 MTV

Advantages

Supercharged devices have a number of features that allow them to be used there. Where it is impossible or difficult to install other types of wall-mounted or floor-standing boilers.

Consumers appreciated turbo boilers for the following qualities:

The design features of the turbo boiler make it the most cost-effective. When compared with other types of heating equipment. The relatively small dimensions of the coaxial chimney and ease of installation allow the use of many modifications of turbocharged heaters in those rooms where it is unacceptable or impossible to install other equipment. Air intake to support the process is not taken from the room itself. In this case, there is no danger of the release of toxic gases due to a lack of oxygen and incomplete combustion of fuel. One of the main advantages is the compact size of the boiler. Pressurized gas boilers have an efficiency level of about 95%. This is ensured by automatic control of the entire work process. In this case, the most optimal operating parameters of the installation are set. Using a coaxial chimney is the most cost-effective compared to other models

In this case, the organization of a stationary chimney is not required; it is very important when installing heating in an already occupied apartment or house

The wall-mounted device can even be installed in the bathroom or kitchen due to its safety and size. At the same time, it will not create additional difficulties or inconveniences.

Installation procedure for turbocharged boilers

Installing such a device usually does not cause serious difficulties. There is no need to allocate a separate room (boiler room) and build a stationary chimney for it.

Typically, installation of a gas boiler occurs in the following sequence:

Wall mounting. Wall-mounted gas units are now the most popular; for safety, it is necessary to ensure their secure fixation

To do this, it is important to select fasteners that are designed to hold the required weight and are suitable for the material from which the wall is made;

Connection to the heating main. Depending on the type of boiler (single-circuit or double-circuit) and the characteristics of the heating system, a different number of pipes can be connected;

Gas pipeline connection

This procedure, as already noted, must be performed by a specialist with the appropriate clearance;

Connection to the power grid. A prerequisite is the use of a voltage stabilizer and a grounding device;

Chimney installation. Wall-mounted boilers are usually equipped with the necessary piece of coaxial pipe. A hole must be cut in the wall through which the double-circuit chimney is vented to the street;

Setup and first launch. For proper operation of a turbocharged boiler, gas automation must be configured. It must be performed by a specialist certified by the manufacturer.

Gas boiler Vaillant turboTEC plus VUW INT 282/5-5 28.9 kW double-circuit

Photo: pokupki.market.yandex.ru

The gas wall-mounted boiler Vaillant turboTEC plus VUW 282-5 is equipped with a liquid crystal display, which displays complete information about the operation of the device. The control panel, closed with a special lid, ensures ease of adjustment and prevents accidental changes in the boiler operating parameters. This unit is used for both heating and hot water supply. The flow-through plate heat exchanger for heating water is equipped with protection against scale formation. It is possible to set the boiler to partial output in heating mode. A coaxial pipe can be used to remove combustion products.

Gas boiler Vaillant turboTEC plus VUW INT 282/5-5 28.9 kW double-circuit

Advantages:

Easy access to the internal parts of the boiler
Movable wall mount (20mm left or right)
Minimum required side clearance 5mm
Connection kit included in delivery
The sensor system is isolated from the boiler frame
Power adjustment thanks to modulating burner
Forced removal of combustion products using a fan
The burner is made of chromium-nickel steel
Electronic ignition
Automatic switching to hot water mode
Anti-scale protection
Circulation pump with automatic stage switching
Automatic pump control
Closed expansion tank
Automatic air vent
Integrated motorized priority change-over valve
Built-in pressure gauge
Hot water temperature adjustment
Can be set to partial output in heating mode
Aquasensor and sensor to maintain a constant outlet water temperature
Heating temperature adjustment: 35-85 degrees
It is possible to connect a room thermostat
AtmoGuard combustion control system
Self-diagnosis system
Integrated switching module for e-bus interface
Automatic adjustable bypass valve
Safety valve
Intelligent pressure control in the heating system
Frost protection
Protection against jamming of pump and three-way valve

#Choice #Heating #Recommendations #Top 10 #Boiler

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What criteria are used to choose a boiler?

The first thing consumers consider when choosing a heating boiler is the number of circuits. The double-circuit wall-mounted turbocharged gas boiler is in great demand among the population.

Its cost is much higher than that of a conventional boiler. But with its help you can save money on purchasing more equipment for organizing a hot water supply system.

Single-circuit units also have advantages:

lower price;
simplified installation;
light weight;
easy to repair if necessary;
reliable and durable.

Most often, single-circuit units are installed for heating non-residential premises.

A gas boiler must be selected according to its power characteristics in order for it to justify itself in terms of reliability and efficiency. With a ceiling height of no higher than three meters, 1 kW of thermal energy corresponds to 10 square meters. meters of heated area.

There is also such a criterion for choosing a boiler as its size and shape. In some cases, it is preferable to install a floor-standing boiler with a turbine. It has larger dimensions than the wall-mounted model, however, it also has a longer service life. Its design uses high-strength materials in the manufacture of main components.

Each consumer has his own requirements for a turbocharged gas boiler. All options - two-circuit and single-circuit, wall-mounted and floor-mounted - find their buyer. Of course, if there is a need for hot water supply, then a double-circuit boiler will optimally solve the problem.

Operation of a turbocharged boiler

In a conventional heating boiler, draft is created naturally. It is ensured by the presence of a temperature difference between unheated and warm air. Turbocharged boilers have a completely different draft principle. Such boilers have a built-in special fan and an automatic system for forced creation of air draft. The operation of the system is controlled by gas combustion.

The coaxial air flow is supplied through two pipes, rather rigidly inserted into each other. These pipes form the chimney. The outer pipe takes in air, and the inner pipe removes all carbon monoxide.

The entire boiler body is completely sealed; it can be installed not only in a special room, but also inside living rooms. It does not pose any danger to human health.

Both floor-mounted and wall-mounted modifications of gas boilers are popular. Their choice depends on individual conditions.

Criteria for choosing a double-circuit gas boiler model

Before choosing a specific model, it is necessary to correctly evaluate the advantages and disadvantages of the proposed equipment models. And also clearly formulate the main selection criteria.

To navigate among the huge variety of models, it is useful to read reviews about the work and performance characteristics of various modifications. Many consumers, in the process of installing boilers and their further use, have already encountered some technological problems, which they readily share in forums and blogs.

It must be taken into account that the power of almost all modifications of gas double-circuit boilers does not allow them to be used for heating very large areas.

They are usually installed in small apartments or private houses.

But due to their size, such boilers can be hidden behind pieces of furniture and placed in very convenient places for use without compromising the overall design of the room.

How to choose a gas turbo boiler

Turbocharged boilers are no longer a rarity. Domestic consumers are offered several dozen models from various manufacturers, differing in functionality and internal design. The choice of a turbocharged gas boiler comes down to the following:

Selection according to technical characteristics.
To the manufacturer.
Cost.

Experts recommend selecting heating equipment after analysis and thermal calculations of the room.

Selection by power and functionality

Choosing suitable boiler equipment begins with selection by power and functionality

Pay attention to the following characteristics:

Productivity - accurate calculations are performed after an audit of heated premises for heat loss. There is a formula for calculating the average productivity value, 1 kW = 10 m². Calculations using the above formula are not suitable for boilers with a separate heat exchanger (double-circuit), as well as for rooms where the ceiling height is more than 2.7 m. Boiler equipment with a bithermal heat exchanger is calculated taking into account the required power reserve (+15%) and additional performance required for heating water (+15%).
Number of heating circuits - if there is an urgent need for domestic hot water, choose a boiler with two heat exchangers. In other cases, a heat generator with one heating circuit is suitable. A modern 2-circuit gas turbo boiler for heating and hot water, operating in the “Winter/Summer” mode. After the end of the heating season, the primary circuit is turned off. The boiler continues to operate as a regular instantaneous water heater.
Heat exchanger material - the primary circuit is made of cast iron and steel. Secondary heat exchanger, made of copper or aluminum. Each material has its own parameters of thermal conductivity and service life. The material of the circuits affects the cost of the boiler.
Automation - the device of a double-circuit turbocharged gas boiler includes conventional or weather-dependent automation. Modern models are equipped with a remote control unit; at the customer’s request, they are additionally equipped with a remote warning module. The more functions the automation has, the more economically the boiler consumes gas.

Which brand of turbo boiler is better?

The rating of turbocharged gas boilers by company is headed by models from German manufacturers. The products of French and Italian factories are slightly inferior to them. Recently, Russian companies have begun to produce quite competitive boilers that are extremely popular due to their low cost.

The selection of turbo boilers in terms of reliability is led by Buderus, Bosch Gas, Protherm, Vaillant. In second place are Baxi, Neva Lux, Arderia. Somewhat worse in build quality and reliability are the products of Korean concerns: Navien, Daewoo, Kiturami, Hydrosta.

How much does a turbocharged boiler cost?

Pricing policy largely depends on the chosen manufacturer. A Buderus 12 kW double-circuit turbocharged gas boiler will cost 33-35 thousand rubles. The domestic analogue can be purchased starting from 20-25 thousand rubles.

Korean equipment, sold exclusively in the “premium” configuration. For a boiler equipped with weather-dependent automation, you will have to pay the price of a German boiler in the basic minimum configuration, 35-40 thousand rubles.

Gas boiler Federica Bugatti ECO 18 Turbo double-circuit

Photo: pokupki.market.yandex.ru

The Federica Bugatti ECO 18 TURBO 2-circuit gas wall-mounted boiler is convenient and easy to use. It is used to organize heating and hot water supply systems in apartments, cottages, and private houses. The unit is designed for a room up to 180 m². Has high indicators of efficiency and safety. The boiler is equipped with a brass hydraulic group, two VALMEX (Italy) heat exchangers for heating and domestic hot water preparation, a GRUNDFOS pump (Denmark), as well as a SIT gas valve (Italy).

Gas boiler Federica Bugatti ECO 18 Turbo double-circuit

Advantages:

Brass hydraulic group
Heat exchangers VALMEX (Italy)
Pump GRUNDFOS (Denmark)
Gas valve SIT (Italy)
Electronic flame modulation
13 protection systems
Automatic diagnostic system
DHW heat exchanger type – separate
Closed combustion chamber

Combustion chambers of gas boilers and their features

The combustion chambers of these types of boilers have significant differences in their design. This determines the method of removing carbon monoxide from them.

Turbocharged gas boilers

Here, “closed” combustion chambers are used to burn gas. Their peculiarity is that the chamber cavity does not communicate with the air of the room in which the boiler is installed. What does this give? The fact is that for normal combustion of gas, oxygen in the air is needed in the required quantity (for normal combustion of 1 m3 of gas, 10 m3 of air is needed) and it must be taken somewhere. So in this case, it is not taken forcibly from the room, but is sucked in directly from the street by a fan. This makes it possible not to arrange a fresh air supply for the boiler and not to place it in a specially designated and ventilated room. That is, in accordance with the technical requirements, such a gas boiler has more options for its installation location in a house or apartment.

Traditional chimney gas boilers

Boiler with open combustion chamber

These designs have an "open" (sometimes called "atmospheric") combustion chamber. It communicates with the air in the room where the gas boiler is located and the required amount of air for gas combustion will be absorbed naturally during operation of the boiler’s gas burner. That is, the oxygen in the air will gradually be consumed and its constant replenishment is necessary. For this purpose, supply and exhaust ventilation is needed. Its device must solve this problem, otherwise the normal operation of a gas boiler is both impossible and dangerous.

When there is a lack of oxygen, the following happens:

1) the gas stops burning completely, and we do not receive the amount of heat that we should receive during the normal process;

2) carbon monoxide (CO) is formed, which in certain concentrations is life-threatening (the presence of just 1% carbon monoxide in the air when inhaled can lead to fatal poisoning of the body).

Therefore, the operation of such gas boilers is considered more dangerous and, even with automatic protection, requires periodic monitoring of the process.

What is a turbocharged gas boiler

Gas boilers are used to heat private houses, apartments and other premises not connected to a centralized heating system. Comfortable temperature in the rooms is ensured by circulating coolant through the water heating system. The fuel used to heat it can be either natural or liquefied gas. Burning in a special chamber, it heats the water in the heat exchanger, and it is supplied to the heating system using a circulation pump.

When gas burns, components harmful to humans remain: soot, carbon dioxide CO2, nitrogen oxides, and sometimes even carbon monoxide CO. Therefore, one of the most important functions of a gas unit is to remove burnt gas residues from the room.

There are two ways to remove exhaust gases. The first, and simplest, is to allow combustion residues to escape naturally through the building’s standard chimney. Boilers in which this method is implemented are called atmospheric, and the combustion chambers in them are called open. The second method of removing exhaust gases is forced. Units with such a system are usually called turbocharged gas boilers, and their combustion chambers are closed.

Compared to atmospheric units, turbocharged gas boilers have the following advantages:

the closed version of the combustion chamber does not allow exhaust gases to escape into the room;
when burning gas, oxygen from the room is not used, which makes full supply ventilation unnecessary;
there is no requirement for a chimney in the building;
compactness;
high efficiency (up to 95%).

What to consider when installing turbo boilers

When installing boilers, you need to take into account some points that may affect its performance. First of all, it is dependent on the supply of electricity.

This is the weak point of tube boilers. The fact is that they cannot work with inertial coolant circulation. If there is no electricity, the electric pumps will stop and the boiler will be idle.

Another disadvantage is the high cost of parts and repairs of a turbocharged boiler.

However, these points are not so significant compared to the convenience and efficiency of such equipment.

Units are selected in accordance with the size of the house, radiator models and taking into account the rules of the heating scheme. Experts will help you perform the necessary thermal calculations and suggest which boiler is better.

With a competent approach to choosing equipment for gas heating, you can ensure its economical and durable operation.

Types of smoke exhaust ducts and features of their design

Types of chimneys that a gas boiler can be connected to.
Engineers of methane-fired boiler equipment have developed several types of chimneys that can be connected to:

vertical type;
horizontal type;
two-channel vertical design.

You can also always use an ordinary brick pipe as a chimney, having previously modified its design in accordance with the operating standards of boiler equipment.

Vertical chimney

A pipe with one channel is the simplest design. It can be made of stainless steel or galvanized steel. Such a chimney is assembled from separate sections of a thin-walled structure or with several walls, between which there is a layer of insulation. As a rule, this pipe system has a settling tank for settling soot or condensate. The heat generating equipment is connected to the channel from the side, just above the bottom end.

Horizontal smoke exhaust channel

A horizontal type chimney can be single-channel or two-channel, called coaxial. The latter option is often used for turbine boilers where the air supply is from outside the building. The coaxial system can be made of stainless steel, galvanized and special plastic. The most reliable option is a stainless steel chimney, as it has increased resistance to the acidic environment resulting from the combustion process.

The internal duct of the two-channel system is exhaust, the external one serves for air flow into the chamber.

Two-channel vertical system

You can use a brick stove pipe for the boiler.
A vertical pipe with two channels is most often used in multi-storey buildings with a centralized chimney system. Several units can be connected to such a pipe at the same time. A chimney exhaust project of this type takes place in houses where it is not desirable to weaken the supporting structure by drilling holes in the wall or in order to preserve the decorative facade of the building.

Connecting the boiler to a conventional chimney

In old houses with stove heating, you can use the existing brick pipe as a chimney for a heat-generating unit. The disadvantage of this option is that the smoke, consisting of steam and carbon dioxide, does not have a high temperature, condensation will constantly form on the pipe, it will begin to freeze and quickly collapse. Therefore, such structures need to be additionally insulated.

Single-circuit or double-circuit gas boiler

A single-circuit gas boiler is intended exclusively for heating the premises. If the boiler is required to provide the house with hot water, then you need a double-circuit heating boiler. In this case, calculating the required boiler power becomes a little more complicated - to the power required to heat the premises, it is necessary to add the power for heating water. The characteristics of double-circuit gas boilers usually indicate how much water and to what temperature a given boiler can heat

Please note that it is not the outlet water temperature that is indicated, but how many degrees the water will heat up, i.e. if it says “40 degrees” and the initial water temperature is 10 degrees, then the output will be 50

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Gas boiler Federica Bugatti ECO 12 Turbo 12.2 kW double-circuit

Photo: pokupki.market.yandex.ru

The Federica Bugatti ECO 12 TURBO 2-circuit gas wall-mounted boiler is recommended for installation for organizing a heating and hot water supply system in apartments, cottages, and private houses with an area of up to 120 m². Has a built-in heat exchanger. The boiler does not require minimum water flow to operate. The components are made of reliable, high-quality materials, which guarantees a long service life.

Gas boiler Federica Bugatti ECO 12 Turbo 12.2 kW double-circuit

Advantages:

Equipped with brass hydraulic group
Heat exchangers VALMEX (Italy)
Pump GRUNDFOS (Denmark)
Gas valve SIT (Italy)
Electronic flame modulation
13 protection systems
Automatic diagnostic system
DHW heat exchanger type – separate
Closed combustion chamber