The heat source in the autonomous heating system is the boiler. Gas-powered design is the most profitable option. The fuel price is the lowest, the efficiency is high, the device is compatible with all types of pipes and radiators. An example of such an apparatus is the Beretta boiler.
Specifications
The devices are manufactured by RIELLO S.p.A. The assortment is large: double-circuit and single-circuit models, floor-standing and wall-mounted, with different types of burners. For the convenience of consumers, boilers of different designs are presented in series. The technical specifications are different, so that any buyer will find a suitable option.
- Kompakt - single-circuit boilers with power from 13.5 to 14.2 kW. Only the heating system is connected to the device. A feature of the models is an open combustion chamber. These are the cheapest devices.
- City - the series includes both single and double-circuit models with power ratings from 24 to 28 kW. Combustion chambers, both open and closed. This also includes condensing boilers with a capacity of up to 50 kW. A feature of the series - the models work both from natural and from liquefied gas. Equipped with LCD displays.
- Ciao - double-circuit, ensure the operation of the heating system and water heating. Combustion chambers are made both closed and open. All devices are equipped with bithermal heat exchangers - they increase the level of heat transfer. The Beretta boiler of this series is protected against freezing of the coolant in the pipes. The series includes the "Nord" models - they automatically start heating the water if its temperature drops to +5 C.
- Mynute is an advanced line. All models are equipped with options for frost protection, automatic ignition, and their own diagnostic system. An expansion tank with a volume of up to 8 liters is also provided. A series of both conventional double-circuit boilers and condensing boilers is presented.
- Novella - models are designed to work in natural circulation systems. The combustion chambers are open. Piezo ignition is provided. The devices of this series can work in the absence of electricity. Only single-circuit modifications are produced.
- Boiler - the power of the devices is relatively small - up to 28 kW. However, all models are equipped with 60 liter boilers with separate heat exchangers. Protected from freezing. Bonus - circulation pump and simulated burner.
- Exclusive - designed to operate in closed heating systems. The boiler is equipped with its own pump and separate heat exchanger. The device works in 4 modes. The company produces models with power from 16 to 35 kW.
Models of all series are equipped with a security system: coolant pressure control, pump blockage control, flame control and more.
Varieties of boilers
Gas household boilers are designed to work in apartments and private houses, this requires compactness, noiselessness and sufficient power. RIELLO S.p.A. manufactures different versions, suitable for work in a wide variety of conditions.
Wall mounted
Such devices are installed on the wall directly in the bathroom or in the utility room. They are distinguished by lightness and compactness. The device does not take up space, it can be placed in the smallest kitchen, hanging over a sink or table.
The power of the products is low - up to 28 kW.Equipped with steel heat exchangers only.
Floor standing
It has a much larger size and weight, but is equipped with all modern improvements. The power is much higher: from 25 to 290 kW - these are the figures for the Novella Maxsima model. Cast iron heat exchangers are installed here. Cast iron is more resistant to corrosion and more ductile than steel, so the apparatus can operate at low temperatures. Its service life is longer - up to 25 years versus 10-15 for steel ones.
Double-circuit
They heat water for the heating system and for hot water supply. In such devices, 2 heat exchangers are installed: the coolant, leaving the first, enters the second, where it heats the water for washing dishes, hygiene procedures, and washing. The dimensions of the double-circuit boilers are larger.
The types of heat exchangers are distinguished:
- boiler with a separate heat exchanger: heating of the coolant for heating and for hot water supply is carried out on 2 different elements;
- with combined - bithermal: hot water and coolant are heated alternately in one heat exchanger of the coaxial type; this model consumes less energy for heating, but gives less hot water.
The boiler heats up a strictly defined volume of water. But the second circuit can be turned off when it is not needed.
Single-circuit
They work only for heating. The dimensions are small. Floor and wall execution is possible. The company produces atmospheric and turbocharged devices. The former take air for the burner from the inside, so they are placed only in well-ventilated rooms. Turbocharged models draw in air from the outside using a fan. They are better at removing waste gas.
All single-circuit boilers can be remotely controlled.
Other classifications
Devices are also classified according to other criteria. By the type of heat transfer, they are distinguished:
- Convection apparatus - standard heating on a gas burner flame.
- Condensing - heating is performed in 2 stages. First, the energy obtained from the condensation of moisture from the smoke is used, then the water is heated to the desired temperature using a gas burner. Since the liquid is already heated to some extent, less gas is consumed to reach the specified temperature. Condensing units are more economical, but more expensive.
By the type of removal of combustion products, they are distinguished:
- Natural draft boilers - combustion products enter the chimney and are removed by draft. An important condition for work is a high-quality chimney.
- Forced draft models - fans are installed here that force exhaust gases out.
When choosing devices, other features are also taken into account: heat exchanger material, burner type, frost protection options.
Installation features
The user needs to know about the main requirements for the installation of the device:
- Do not place the device in a living room.
- In the utility room, the boiler is placed in any convenient place. In the kitchen, do not mount the unit over the dining table or over the stove.
- The distance specified in the instructions is maintained between the wall, surrounding objects and the apparatus.
- The body and chimney become very hot during operation. If the apparatus is placed near a heat-sensitive surface, the area must be insulated.
- Before entering the boiler, a shut-off valve must be installed on the gas pipeline. This device is not included in the package. If the water quality is poor, it is recommended to install a filter.
Upon completion of work, it is necessary to check the tightness of all connections. After that, they start checking the equipment.
How to turn on the boiler
The gas heating boiler Beretta is installed and tested by a specialist. The first ignition is performed in his presence.
First, the following parameters are checked:
- availability of electricity, water and gas;
- chimney and air intake functionality;
- gas pressure in the gas pipeline;
- tightness of the gas pipeline;
- the presence of a safety device.
After checking, fire up the boiler. The procedure is as follows:
- turn on the power supply;
- open the gas valve on the incoming gas pipeline;
- set the temperature regulator to +20 C;
- turn the selector knob to the required position - summer, winter, heating water for hot water supply.
The boiler turns off when the regulator is moved to the off position. In this case, the device is not disconnected from the mains, the gas supply remains possible. If the user will be absent for a long time, it is better to turn off the device completely: turn the main switch to the off position, shut off the water and gas supply and disconnect from the mains.
The first ignition is carried out at an air temperature above 0 C.
Boiler operating instructions
The Beretta gas boiler manual contains precise recommendations for operating the device:
- If there is a smell of gas in the room, you must immediately turn off the supply valve and turn off the device. The room needs to be ventilated. Until the arrival of the gas service, it is forbidden to use the device or try to troubleshoot problems yourself.
- The ventilation openings must not be covered, as this is a prerequisite for functioning.
- Do not touch the cabinet with wet hands.
- Before inspecting, repairing or cleaning the device, it must be disconnected from the mains.
- Do not store flammable substances near the device.
- Do not twist or pull the wires even when the unit is turned off.
- To reduce energy consumption, it is necessary to adjust the temperature of the heating medium. The easiest way to do this is by using the ready-made operating modes: winter and summer.
Beretta boilers are equipped with a self-diagnosis system. At the same time, an error code appears on the LCD. This allows you to quickly identify the cause of the malfunction and eliminate the problem. Self-elimination is prohibited.
Store the device before connecting it to a warm, dry place.
Popular models
According to consumer surveys in 2019, the following models are considered the most popular:
- Beretta CIAO is a wall-mounted double-circuit version with a bithermal heat exchanger. Economical and compact option. The disadvantage is sensitivity to hard water.
- The Beretta Boiler is a double-circuit design with a built-in 60 liter stainless steel boiler. There is a 2 l expansion tank, so the boiler does not leak. There is no hot water temperature regulation, by default it is +43 C.
- Novella Avtonom 55RAG is a non-volatile floor-standing model with a capacity of 57.9 kW. Ignition from a piezoelectric element.
- The Beretta Novella 55RAI is an electronically controlled floor-standing version. A boiler is produced with and without a boiler.
- The Beretta Fabula is a floor standing boiler. Equipped with an indirect heating boiler with a volume of 80 or 120 liters.
The cost of boilers is determined by power, design features, design, material of heat exchangers and other factors. The price range is large: CIAO
costs up to 43 thousand rubles, Novella 55RAI - up to 93 thousand rubles.
