BAXI gas boilers: review, design, technical characteristics

Failure protection

For stable operation of Baxi equipment you must:

provide protection against power surges;
perform grounding;
install mechanical filters on water and gas so that there are no particles in the system that could harm its operation.

Installation, connection, configuration and maintenance must be carried out by specialists. For any issues related to the operation of the equipment, consumers should contact certified service centers. This, firstly, will allow you to take advantage of the warranty, and secondly, it will prevent mistakes that are made when performing technical work yourself. The manufacturer warns that stable operation is impossible without proper installation.

Advantages

The company produces floor and wall devices of two types - turbocharged and atmospheric. Double-circuit modifications of the mounted type have been adapted to Russian conditions. Even when the gas pressure drops to 5 bar, they continue to function normally. Advantages:

Self-diagnosis - information about problems is displayed on the display.
Weather-dependent automation – parameters are adjusted depending on the weather.
There are quality certificates and permits.
Maintainability - breakdowns can be easily repaired.
Affordable price – 25,000-50,000 rubles.
Attractive appearance – the models are ergonomic and easily fit into modern interiors.
Automatic operation and adjustment save fuel.
The electronics quickly respond to changes in operating conditions, making adjustments to the operation.
Electronic flame modulation – the set temperature is maintained.
The elements of the hydraulic unit are made of composite materials and are therefore durable.
Overheat protection.
There are control panels - portable and built-in.
For instant water supply – built-in boiler

The technical characteristics of Baxi gas heaters and the level of reliability have determined their place in the Russian market - Italian equipment is chosen by both ordinary consumers and specialists in the field of heating engineering.

Types of Baksi boilers

The manufacturer produces several lines of gas heaters, each of which has options for any circumstances and financial capabilities. The devices are classified according to their functionality:

Single-circuit - for heating only.
Double-circuit - heat and provide hot water.

Two in one - economical and compact. The separate approach also has its adherents - it is more reliable and durable.

By installation method:

Wall-mounted. Low power. Compact - the size allows you to install them in a kitchen cabinet. Hangs on the wall.
Floor-standing. Heavy and powerful. If the first ones are usually installed in apartments, then these ones are intended for private houses that require high heating output from the equipment.

According to the method of smoke removal:

With an open combustion chamber. It is often called a chimney. To remove combustion products, draft is needed - it is created in a long gas duct.
With a closed camera. It is called turbocharged. The draft here is pumped by a fan. Combustion products are discharged through a coaxial chimney passing through the wall. The burner is supplied with outside air.

Based on the operating principle:

Convection. The fire heats the coolant, but some of the heat is lost. Such devices are simpler.
Condensation. There is an additional heat exchanger - hot gas condenses on it and the coolant receives additional heating. The efficiency of such devices is higher. If you compare how much convection and condensation versions cost, the former are definitely cheaper, but they also have lower efficiency.

Also distinguished:

Non-volatile. Not connected to the mains.
Energy dependent. Connected to the mains. Such devices are more advanced and functional. But we have to provide backup power in case of a power outage.

Gas boilers from Baxi

The Italian company Baxi has recently become part of the BDR Thermea industrial group.

Baxi is one of the oldest European companies, founded about 100 years ago.

It has been producing heating equipment for about half a century. During this time, extensive production and technological experience has been accumulated, techniques for manufacturing complex components and structural elements have been developed, and the most critical structural elements have been identified.

Gas boilers are one of the company's activities. We produce a wide range of equipment designed to service private homes, office or public premises of various sizes and number of floors.

The main emphasis is on installations designed for heating residential premises according to the principle of “one boiler - one house”. The user has the opportunity to choose an installation that corresponds in power to the size of his home and does not overpay for excess kilowatts.

All installations have a basic set of functions:

Self-diagnosis (the sensor system provides full control over the condition of the units and elements of the unit).
Protection against freezing of the system (when the coolant temperature drops to 5°, increased circulation starts).
Possibility of setting the heating mode and operational control of the temperature of the coolant (HW) if necessary.

Additional functions, such as climate control or advanced methods for regulating the operation of units, can be connected as an expansion of the installation capabilities or purchased outright as a feature of a certain boiler series or model.

The Baksi company has its own iron foundry and metallurgical divisions, which allows it to produce absolutely all equipment components independently and not depend on subcontractors.

Range

Baxi gas heaters are presented in lines that combine modifications with similar features. Models included in the line may differ in thermal performance and other characteristics. Series of wall modifications:

Eco Four is a dual-circuit version. Two heat exchangers. Copper hydraulic tubes.
Main – with bithermic heat exchanger.
Eco Compact – similar to Eco Four, but more compact.
Four Tech - also repeats Eco Four, but the tubes are plastic, not copper - so their price is lower.
Luna - dual-circuit, except modification 3 1.310Fi.
Nuvola - built-in boiler. There are atmospheric and turbocharged ones.

The estimated cost of single-circuit models is 27,000-47,000 rubles. Double-circuit atmospheric - 27,000-37,000, and double-circuit turbocharged - 35,000 - 40,000 rubles.

Floor-standing versions are presented more modestly. The most popular line is SLIM. All with cast iron radiator. Power range - from 22 to 107 kW.

Condensing boiler is a new generation of gas equipment. Models - Power Ht45—150 / Ht230—650 with stainless steel/silumin heat exchangers. These are the best devices from - they have great power, they can be connected in cascades.

Gas wall-mounted boilers BAXI (Baksi)

Gas wall-mounted boilers Baxi Main Four series

The MAIN Four boiler is the fourth generation of BAXI wall-mounted gas heating boilers, a continuation of the well-known MAIN Digit series. The compact dimensions of the boiler (730×400×299 mm) can be easily installed in confined spaces. The new digital control panel with a wide LCD display and push-button controls makes checking the boiler operation very convenient.

Gas wall-mounted boilers Baxi Eco Four series

Wall-mounted ultra-compact (730×400×299 mm) gas boilers of the fourth generation are a development of the ECO-3 Compact series. Single-circuit and double-circuit models with open and closed combustion chambers with a power of up to 24 kW, and are easy to install, use and maintain. The large and bright liquid crystal display is easy to use and accurately displays the current boiler parameters.

Gas wall-mounted boilers Baxi Luna 3 series

High-performance wall-mounted gas boilers of the third generation Luna 3. Electronic board and self-diagnosis guarantee high reliability of the boiler operation, as well as ease of use and maintenance. Luna 3 boilers are equipped with a large liquid crystal display that displays all information about the operation of the boiler.

Gas wall-mounted boilers Baxi Luna 3 comfort series

Electronic board, high performance ensure maximum comfort under your control. The removable digital panel is also a room temperature sensor and controls all boiler functions. The remote design of the control panel allows you to install the panel in a convenient place (a wireless option is optional). Operation in weather-dependent mode provided that it is equipped with an outdoor temperature sensor. Preparation of domestic hot water using an external boiler (for single-circuit models).

Gas wall-mounted boilers Baxi Nuvola 3 comfort series

Wall-mounted gas boilers with a remote control panel and built-in boiler Nuvola 3 Comfort. Thanks to the built-in 60-liter stainless steel boiler, these boilers are indispensable where high water flow is required, providing 510 liters of hot water within 30 minutes. The removable digital panel is also a room temperature sensor. The remote design of the control panel allows you to install the panel in a convenient place (a wireless option is optional).

Gas wall-mounted boilers Baxi FOURTECH series

Extremely compact (730 x 400 x 299 mm). The main differences between the boilers of this series are two separate heat exchangers for heating and domestic hot water and a turbine flow sensor - a flow meter that gives the consumer even greater comfort when using hot water. The undoubted advantage of FOURTECH boilers is the LCD display with push-button control, which provides the user with the most complete information about the operation of the boiler, including advanced self-diagnosis. The BAXI temperature control system allows you to implement: weather-dependent boiler control, external boiler control, room thermostat and programmer control.

Model overview

LUNA 3 Comfort1.240.

Wall-mounted single-circuit. Approximate price 48,000 rubles. Weight 31 kg. 91% efficiency. Heating capacity 9.3-24 kW. Open firebox. There is automatic ignition. “Comfort” models provide a connection to “warm floors”. Copper heat exchanger.

ECO Four 24 F

Dual-circuit. The Ecofor device is a representative of a new generation. Compact. Hangs on the wall. Closed firebox and separate heat exchangers. Heats rooms up to 240 sq.m. There is an LCD display that displays the current parameters. Power 9.3-24 kW. 91.2% efficiency. Almost silent operation. Power consumption – 80 W.

Luna Duo-Tec1.28

Double-circuit turbocharged. Efficiency – 106%. Connection to heated floors. Outside temperature sensor. There is a remote control unit. 28,000 W – heating capacity. Heats up to 210 sq.m.

Nuvola Duo - Tec+

Wall-mounted version. Condensing type. Closed firebox. Can run on liquefied gas. Electronic control. There is an LCD display. Weighs 62 kg. Warm floors mode.

POWER HT 45

Floor-standing condensing type unit. The cost is more than 138,000 rubles. Open firebox. Without DHW. Powerful boilers can be connected in cascades. Width – 45 cm. Power 48.7 kW. Weight 60 kg.

SLIM 2.230i

Floor installation. Open firebox. Weight – 155 kg. Two circuits. 22.1 kW. Heats an area of up to 166 m2. Capacity 13 l/min. The capacity of the expansion tank is 10 l. The price is about 100,000 rubles.

SLIM 2.300 Fi

Powerful floor-standing boiler. Efficiency 90%. Nominal heating output 30 kW. Closed firebox. Heat exchanger – cast iron. Turbocharged gas exhaust. Weighs 184 kg. The cost is about 140,000 rubles. Expansion tank – 10 l. Dimensions (HxWxD) – 85x65x60 cm. There is a circulation pump.

Wall-mounted double-circuit models

The main advantages of wall-mounted double-circuit models of Baxi boilers are ergonomics and functionality of not only heating, but also the boiler.

This solves the problem of hot water supply.

The best models according to customer reviews and ratings.

BAXI ECO-4s 24F 24 kW dual circuit

Convection-type gas boiler with rich functionality and stylish exterior.

The BAXI ECO-4s 24F 24 kW model is equipped with a high level of safety. Despite its rather large dimensions, the device is light in weight, which greatly facilitates installation.

Pleasant design will harmoniously fit into the interior of any room.

Specifications:

thermal power - 9.3-24 kW;
combustion chamber - closed;
control type - electronic;
heat exchanger material - copper;
Efficiency - 92.9%;
dimensions - 400x730x299 mm;
weight - 30 kg.

Advantages

quiet in operation;
acceptable price;
heats water quickly;
reliability;
maintainability;
Beautiful design.

Flaws

The hot water temperature changes periodically;
there is no way to regulate power;
uneconomical.

BAXI LUNA-3 COMFORT 240 Fi 25 kW dual circuit

Mid-size model with convection heating system.

The beautiful exterior of the device will be a pleasant addition to your home interior.

To install the BAXI LUNA-3 COMFORT 240 Fi 25 kW, you do not need to purchase additional components - everything is included in the kit.

The unit uninterruptedly provides heat and plenty of hot water.

Specifications:

thermal power - 9.3-25 kW;
combustion chamber - closed;
control type - electronic;
heat exchanger material - copper;
Efficiency - 92.9%;
dimensions - 450x763x345 mm;
weight - 38 kg.

Advantages

quiet in operation;
Beautiful design;
efficiency;
high build quality;
multifunctionality;
long service life.

Flaws

high price;
difficulties in settings;
expensive spare parts.

BAXI LUNA-3 240 Fi 25 kW dual circuit

Convection model with a good level of safety, which is ensured thanks to a closed combustion chamber.

The BAXI LUNA-3 240 Fi 25 kW device with a laconic design will fit into any interior.

Rich functionality allows you to use both heating and hot water.

The unit heats about 15 liters of water per minute, which is a very good indicator.

Specifications:

thermal power - 9.3-25 kW;
combustion chamber - closed;
control type - electronic;
heat exchanger material - copper;
Efficiency - 92.9%;
dimensions - 450x763x345 mm;
weight - 38 kg.

Advantages

multifunctionality;
high performance;
reliable design;
high quality materials and components;
does not make noise during operation;
efficiency.

Flaws

high price;
large dimensions;
Without the appropriate technical skills, it is difficult to configure.

BAXI ECO-4s 18F 18 kW dual circuit

Convection type model with an ideal price-quality ratio.

The BAXI ECO-4s 18F 18 kW device has a long service life and is less susceptible to breakdowns due to the high quality of the materials manufactured.

Laconic dimensions allow you to install the boiler anywhere.

Specifications:

thermal power - 9.3-18 kW;
combustion chamber - closed;
control type - electronic;
heat exchanger material - copper;
Efficiency - 92.5%;
dimensions - 400x730x299 mm;
weight - 30 kg.

Advantages

high efficiency;
efficiency;
convenient control;
reasonable cost;
a light weight;
Beautiful design;
quiet at work.

Flaws

phase dependence;
installation requires purchasing additional components;
non-ergonomic model.

Wiring diagram for Baksi heating systems

The purpose of the strapping is to prevent the device from overheating. Properly executed piping saves resources due to the effective distribution of thermal energy. At the same time, expensive automatic adjustment loses its relevance. There are the following strapping schemes:

Single-pipe. The coolant rises up, enters the radiator, and leaves it, ending up in the same pipe. After passing through all the radiators, the water returns to the original pipe.
Two-pipe. The coolant is heated in the boiler. Gas is supplied to the radiator through the supply pipe. The coolant, having cooled, returns through the second pipeline.
Combined.

Baxi condensing boilers

Condensing boilers are manufactured using innovative developments. Therefore, such boilers are different from others. And the efficiency is 100%. In conventional gas boilers, gas and water exit through the chimney, losing approximately 11% of the heat in the house. In condensing boilers, the temperature of the gases is converted into useful energy, therefore no heat is lost.

How to use the self-diagnosis system?

All BAXI modifications are equipped with a self-diagnosis system. The information is displayed on the screen; the user’s task is to decipher the error codes using instructions and take measures to eliminate them. What do the codes mean:

E01 – no ignition.
E02 – thermostat activation.
E03 - no normal traction.
E05 - the temperature sensor is broken.
E10 – low water pressure.
E12 – pressure switch is faulty.

Device Description

The instructions provide schematic diagrams of the device. Each modification has its own, but the main components are made in the same way. At the top there is a chimney. Directly below the chimney there is a ventilation system. Below it is a heat exchanger. It looks like a radiator or coil. On the left is the temperature sensor and thermostat. In the center is a firebox. There is a burner in it. On the right is the pipe coming from the heat exchanger. The pipe goes into the expansion tank and connects to the pump. On the left is a pipe with a hydraulic relay and a safety valve. From this pipe water flows into the heating system.

Device

Baksi gas boilers consist of the following components:

Gas burner of open or closed type.
Turbocharger fan (for models with a closed burner).
Heat exchanger (primary and secondary if the boiler is double-circuit).
Three way valve.
Circulation pump.
Gas valve.
Sensor system connected to the control board.
Housing with connecting pipes for gas and water lines.

Some models have additional elements that provide climate control or advanced control capabilities of the system.

You can see the device in the photo below.