Baxi with built-in boiler. Baxi gas boilers: overview, device, model range. Advantages of Baxi wall-mounted gas boilers

Description

Baxi NUVOLA-3 Comfort 240 i is a modern wall-mounted gas boiler focused on cooking hot water in large volume. The built-in boiler with a capacity of 60 liters made of AISI 316L stainless steel allows you not to worry about the consumption of hot water: the boiler is able to provide up to 490 liters for 30 minutes (at ∆t = 30°C).

Advantages of the Baxi NUVOLA-3 Comfort 240 i boiler

Reliable gas system. Like other Baxi gas boilers from this line, this model is fully adapted to domestic operating conditions, operating stably when the natural gas inlet pressure drops to 5 mbar. Continuous electronic modulation of a flame in the modes of heating and GVS is provided. If necessary, the Baxi NUVOLA-3 Comfort 240 i can be reconfigured to run on liquefied gas.

Hydraulic system. In addition to a storage boiler of 40 liters and a magnesium anode that protects the boiler from corrosion, this model is equipped with a multifunctional hydraulic system:

turbine sensor of hot water flow (flow meter);
energy-saving circulation pump with automatic air vent;
primary copper and secondary steel heat exchangers;
brass three-way valve with electric actuator (two-circuit models);
manometer;
automatic bypass;
pump post-circulation;
inlet filter cold water;
built-in three-way valve for the boiler (without servomotor) in single-circuit models.

Convenient temperature control. The Baxi NUVOLA-3 Comfort 240 i boiler has two temperature control ranges in the heating system: 30-85°C and 30-45°C (“warm floors” mode). Management is carried out through a convenient digital panel. The panel is removable and can, if necessary, be installed in any convenient location. The user requires a minimum of effort and time to set up: built-in weather-dependent automation eliminates the need to adjust the parameters, it is possible to program the boiler weekly. Maintaining the set temperature in the heating and hot water circuits is carried out automatically with high accuracy.

Modern security system. The wall-mounted gas boiler Baxi NUVOLA-3 Comfort 240 i is equipped with an electronic self-diagnosis system with the ability to remember the last errors in operation. Among the standard means of protection and safe operation: ionization flame control, protection against blocking of the pump and three-way valve, a thermostat against overheating of the coolant in the primary heat exchanger, a draft sensor, a pressure switch in the heating system, which is triggered by a lack of coolant pressure. The unit also has safety valves in the heating circuit (3 atm.) and in the DHW circuit (8 atm.), as well as a frost protection system in the heating and DHW circuits.

Full set. To provide a supply of hot water using a boiler without an internal tank, you will have to buy additional equipment - a storage tank, a three-way valve and a number of other circuit elements. This is not only a waste of money, but also certain difficulties in installation; have to choose a place rational placement devices and connect them. A lot depends on how well and professionally the work is done. After all, the more connections in the fluid system, the higher the likelihood of leaks. BAXI boilers with a boiler are compact, and factory assembly is a guarantee that there will be no problems with depressurization during the operation of the equipment.
Savings on en / resource. The prepared hot water is stored not just in a tank, but in a mini-thermos, and therefore the drop in the temperature of the liquid over time is so insignificant that it can be ignored. If you need it in small quantities (washing dishes, hands), you will not have to periodically turn on the same flow heater or another during the off-season. household appliance. Cooked once, it can be consumed for a long time.
No loop inertia. Water comes from the DHW tap already heated to the temperature set by the user, and immediately. And this is both convenience and a certain saving of en / resource, since fuel is not spent on additional heating of the liquid from the cold water system.
Partial reduction in expenditures under the items "water supply" and "water disposal". Since water of the required temperature immediately flows from the tap, it will not be necessary to drain the liquid coming from the cold water system into the sewer, waiting for it to heat up. This means that monthly meter readings will decrease.
Automatic solution of the DHW priority problem. She rarely comes across. And if the system is designed correctly, the equipment is correctly selected, then such a nuance of the operation of a wall-mounted boiler does not affect the heating of the house. But owners who prefer to do everything themselves run the risk of getting an undesirable effect; in the process of long-term, continuous consumption of water from the DHW circuit (for example, filling a bath), radiators under certain conditions ( low temperature on the street, large heat losses of the building) will gradually cool down. The purchase of BAXI with a boiler completely eliminates the occurrence of such situations.
The stability of the pressure from the hot water tap. Pressure surges in pipes are not reflected on it. And they are observed, and quite often, especially in high-rise buildings. After all, morning and evening hours for many are the optimal time for washing, cooking, bathing children and other household chores. The built-in boiler plays the role of a kind of compensator, leveling pressure changes.
Protection of the OB circuit against possible overheating. Not everyone knows this, but the internal reservoir acts as a temperature buffer.

An important plus of BAXI of this group is that the price of any wall-mounted boiler with a built-in boiler is lower than the kit: equipment without a hot water tank + storage tank indirect heating. If you take into account the cost of their installation, the difference becomes more noticeable. And you don’t have to deal with calculations of equipment parameters, which means that the result is always expected.

Myths about the disadvantages of boilers with boilers

They break more often. Any equipment has its resource, and the built-in tank does not affect this in any way. In the tank itself, there is simply nothing to break; sealed hollow container, nothing more.
Dependent on power supply. This is typical for all boiler equipment, if it does not belong to the TLO category or is not the simplest solid fuel plant. Problems with electricity in the private sector are solved quite simply: a good owner always has a diesel or gas generator at hand. As an option, purchase a UPS, which for some time will replace the industrial / voltage in both the house and the apartment.
Boiler maintenance will need to be done more frequently. Not true. The water for both the boiler and the heat exchangers is the same. And if there is a need to clean the internal cavity of the devices, then such work is performed simultaneously, at the next maintenance.
Boilers with a boiler are much larger. And this is from the evil one. Thanks to the rational layout of BAXI, the increase in linear dimensions is within 2.5–3.5 cm along each axis. Critical? It is unlikely - the user will not notice this, and it will not affect the installation.
Difficulty in choosing a model. This is true. The conventional formula 10 kW/100 m2 is not applicable in this case. And it's not just the degree of insulation of the building and a number of related factors; part of the thermal energy is spent on heating water in the boiler. When choosing a heater of this group, given its cost, it is advisable to consult a professional.

wall Baxi gas boilers literally flooded the Russian market of heating equipment over the past decade. This is not surprising. When a potential buyer faces a choice: to buy an inexpensive boiler, but unfinished and domestic, or a reliable, but expensive German-made boiler, the choice is often made in favor of Italian gas boilers.

As a rule, they are distinguished by a fairly good price-quality ratio and a developed network. Maintenance, easy to find spare parts. Consider the most popular brand of Baxi gas boilers in Russia, reviews of which we can often read on specialized forums, Internet blogs or on the company's official website.

Let us analyze in detail the main models, types, device, specifications wall-mounted (mounted) single-circuit and double-circuit gas boilers Baxi, we will identify their main advantages and disadvantages, and also we will understand how they differ from each other according to the operating instructions.

The main models of Baxi wall-mounted gas boilers

The following models of wall-mounted gas boilers from Baxi are presented on our market:

- Baxi Main Four and (fourth and fifth generation of boilers);
- Baxi Four Tech and Baxi Eco 4S;
- and its more compact counterpart Baxi Eco Compact;
- Baxi Luna-3 and Luna-3 Comfort with a remote control panel;
- Baxi Nuvola-3 with built-in storage boiler.

Baksi wall-mounted gas boilers differ in the type of combustion products removal and are:

1. Turbocharged gas boilers Baxi with closed camera combustion

A special fan (turbine) is installed in the boiler, with the help of which the combustion products from the boiler are forcibly removed into the atmosphere. To do this, you will have to additionally buy, or a pipe system for separate smoke exhaust and air flow.

The coaxial type of chimney of the "pipe in pipe" type is installed with one end (through the elbow) on the boiler, and the other end goes out through the wall. This is very convenient, because there is no need to specially block the chimney through the roof.

Gas boiler Baxi Main Four 240 Fi

Such models at Baxi are designated by the article "F" or "Fi". For example, mounted double-circuit gas boilers Baxi Main Four 18 F, Baxi Eco 4S 24F or Baxi Eco Four 24 F. The numbers indicate the power of the boiler, i.e. 18 or 24 kW.

2. Atmospheric boilers Baxi with an open combustion chamber

If your private house already has a chimney with a diameter of at least 130 mm, then you can buy a boiler with an open chamber, the emission of combustion products of which occurs due to natural draft. Such boilers are often called "aspirated".

On the Baxi boilers themselves, the diameter of the flue pipe is 121-122 mm, so an aluminum corrugation with a diameter of 125 mm is suitable for them, capable of withstanding temperatures up to 400 degrees Celsius, which can be stretched up to three meters. Alternatively, stainless steel flue pipes of the same diameter can be used. True, this version of the chimney will cost a little more.

These models do not have a turbine, and the article “i” is present in the labeling of the Baksi boiler, or it is not affixed at all. For example, "Baxi Eco Four 24i" or "Baxi Four Tech 24".

Baxi wall-mounted gas boilers are available in two versions:

1. single circuit.

This type of boilers provides only for heating the coolant in the heating system. These boilers have only one main heat exchanger. This type of boiler is not very popular, because its cost is slightly lower than for double-circuit models.

In turn, a wall-mounted double-circuit gas boiler can always be used only for heating, and the second circuit for hot water supply should not be connected at all.

You can simply buy a Baksi double-circuit gas boiler, even if there is no running water for the future. After all, it is possible that after some time the second circuit of this boiler will come in handy, and you will not have to buy a new device.

2. Dual circuit.

Such boilers are most popular with buyers, as evidenced by the numerous reviews of Baxi gas boilers. They are able to work both as a heating unit and as a flow geyser. Moreover, while using running hot domestic water, the heating of the heating circuit does not turn on automatically, unlike many brands of floor-standing gas boilers.

Double-circuit wall-mounted gas boilers have two separate heat exchangers, or one bithermic one for heating both circuits in one monolithic block. Boilers of this type are most in demand among potential buyers. Having bought such a boiler, we get in “one bottle” both a boiler for heating and for hot water supply.

Features of the device of double-circuit gas boilers Baxi: instructions

Double-circuit boiler Baxi Eco 4S 24F

1. All models are equipped with two separate heat exchangers (except for the Main Four and Main 5 series boilers) for heating water in the heating system and domestic, flowing for hot water supply. The main heat exchanger is made of high-quality copper, the secondary one for hot water supply is made of stainless steel.

2. All boilers are equipped with a circulation pump from German manufacturers, either Grundfos or Wilo. This pump is able to raise the water column in the heating system up to 6 meters, which is quite enough for two-story house or cottage. The circulation pumps built into the boilers are quite economical and equipped.

3. To maintain the required pressure in the heating system, Baksi boilers have a built-in membrane expansion tank volume of 6-10 liters. You do not need to buy an additional one more if the total volume of water in the system does not exceed 100-150 liters. This individual volume can also be found out independently by counting the total number of radiator sections, the length of the pipe, or when filling the system.

4. Baxi boilers are equipped with a Honeywell gas valve, the gas burner has stainless steel flame spreaders. All models automatically maintain the temperature of the water in the heating system and in the DHW circuit thanks to the smooth electronic modulation of the burner.

The boiler safety group includes:

- automatic air vent;
- safety valve with pressure gauge.

Consider a dual-circuit device gas boiler on the example of the model "Baxi Eco Four 24F" according to the scheme:

The device of a double-circuit gas boiler Baxi

1 - hydraulic pressure switch

2 - three-way valve

3 - three-way valve motor

4.22 - 3 bar safety valves

5 - Honeywell gas valve

6 - gas supply pipe to the burner

7 - water temperature sensor in the system

8 - flame spark plug

9 - overheat protection sensor (thermostat)

10 - main heat exchanger

11 - smoke hood

12 - turbine for ejection of combustion products

13 - Venturi tube

14.15 - points pos. and negative pressure

16 - traction control sensor

17 - gas burner

18 - expansion membrane tank

19 - circulation pump

20.21 - drain cock and pressure gauge
23 - tap for feeding the heating system
24.25 - temperature sensors of the DHW circuit

Besides, in wall boilers built-in electronic board, so-called. The "brains" of the boiler, various sensors: flow, temperature of the DHW and heating circuit, as well as draft and flame sensors. There is a system for protecting the boiler from freezing and blocking circulation pump. Which does not cancel the mandatory purchase for a boiler of this brand.

gas boilers Baxi: model differences and specifications

As you can see, the range of boilers from this Italian manufacturer is quite wide. Let's now take a closer look at each of the main models, and find out how they differ from each other and what features they have.

Features of models of boilers of the Baxi Main Four and Baxi Main 5 series

The predecessor of the boilers of this series were devices called Baxi Main, which did not have an LCD display and a number of other functions. In general, the word "Main" in translation from English means "main" or "main". Also in our case, the boilers of the “Main” series are basic version wall-mounted gas boiler from Baxi.

Their main distinguishing feature is the presence of a bithermic heat exchanger. This means that both the heating circuit and the DHW circuit are heated in the same heat exchanger. The water in the circuits does not mix, and the running water is heated precisely by the heating circuit.

The fifth generation boiler attracts with its compact dimensions, but is produced only with a closed combustion chamber, unlike the fourth generation boiler. They can be used for heating a private house or apartment with an area of up to 200-240 m2, they have a model range with a capacity of 14, 18 and 24 kW.

Specifications Baxi Main 5

Features of the Baxi Eco Four and Baxi Eco Compact boiler models

The main feature of these models is the presence of an additional stainless steel plate secondary heat exchanger for heating the DHW circuit.

The main (primary) - heats water only in the heating circuit, and the secondary one works independently of it, using the coolant from the heating circuit to heat running water. Thus, the load on the main heat exchanger is noticeably reduced. Thus, the service life of both it and the gas boiler itself is increased.

Model Baxi Eco Compact already in its name indicates to us its small dimensions, due to the better arrangement of internal elements, compared with the same boilers of the fourth series. In addition, they are equipped with a new electronic board. The "ancestors" of the Eco Four series boilers are wall-mounted gas boilers of the third Baxi Eco 3 Compact series.

Specifications Baxi Eco Four

Features of models of gas boilers Baxi Four Tech

Series boilers are a cheaper version of Eco Four series boilers. They are also equipped with two separate heat exchangers made of copper and stainless steel. Their distinctive feature is that the hydraulic part (water supply pipes) is not made of copper, as in Eco Four, but of plastic.

Due to this, the manufacturer managed to reduce the price of wall-mounted double-circuit gas boilers with two heat exchangers, and some buyers appreciated this: after all, boilers of this series also found their firm place in the market. This was especially noticeable during the collapse of the ruble against the dollar and the euro.

Specifications Baxi Four Tech

Additional functions and boiler control

All models are equipped with a digital control panel, on which you can set the boiler operation mode, the temperature of the water in the heating system and hot water, set the mode of underfloor heating in the temperature range of 35-45 degrees. It is also possible to regulate the operation of the boiler depending on the weather outside the window, thanks to weather-dependent automation, by connecting a special outdoor temperature sensor.

Or buy Baxi and set the temperature in the room.
But, unfortunately, these accessories are not included in the package and must be purchased separately.
The only exception is the Luna-3 Comfort model with a remote control panel.

In addition, the display shows errors when the Baxi boiler is operating under certain codes, for example, “E 06” - the DHW temperature sensor is faulty, etc.

Advantages of Baxi wall-mounted gas boilers

- a wide range of models;
- many service centers in Russia and the CIS countries;
— Availability of spare parts from official representatives (dealers);
- reasonable cost.

Disadvantages of Baxi boilers

- weak electronics (in particular, an electronic board);
- high sensitivity to running water of poor quality;
— not "native" spare parts.

Results
Today we have analyzed in detail the wall Baxi gas boilers, considered the advantages, disadvantages of models, their technical characteristics, according to the instruction manual. We also compared how the main models of this brand of boilers differ and made our own review on them.

I will not recommend or dissuade from buying, the choice is yours. Read reviews on Baxi gas boilers and analyze. Let me just say that the price-quality ratio for Baksi boilers is quite good, even despite the fierce competition in the heating equipment market. Watch video review.