The heat source in an autonomous heating system is a boiler. A gas-fired design is the most profitable option. The fuel price is the lowest, the efficiency is high, the device is compatible with any kind of pipes and radiators. An example of such an apparatus is the Beretta boiler.
Specifications
The device is manufactured by RIELLO S.p.A. The assortment is large: double-circuit and single-circuit models, floor and wall, with different types of burners. For the convenience of consumers, boilers of various designs are presented in series. Specifications are different, so any buyer will find the right option.
- Kompakt - single-circuit boilers with a capacity of 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 dual circuit models with power ratings from 24 to 28 kW. Combustion chambers, both open and closed. This also includes condensation boilers up to 50 kW. The peculiarity of the series is that the models work both from natural and from liquefied gas. Equipped with LCD displays.
- Ciao - double-circuit, provide the heating system and water heating. Combustion chambers make both closed and open. Bithermic heat exchangers are installed on all devices - they increase the level of heat transfer. The Beretta boiler of this series is protected against freezing of the coolant in the pipes. The Nord models are part of the series - they automatically start heating water if its temperature drops to +5 C.
- Mynute is an advanced line. All models are equipped with options for frost protection, automatic ignition, own diagnostic system. An expansion tank of up to 8 liters is also provided. A series of both conventional double-circuit boilers and condensation ones is presented.
- Novella - Models are designed to work in systems with natural circulation. The combustion chambers are open. Piezo ignition is provided. 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 against freezing. Bonus - circulation pump and simulated burner.
- Exclusive - designed for operation in closed heating systems. The boiler is equipped with its own pump and a separate heat exchanger. The device operates in 4 modes. The company produces models with power from 16 to 35 kW.
Models of all series are equipped with a security system: control of the coolant pressure, control from blocking the pump, flame control and more.
Varieties of boilers
Gas domestic boilers are designed to work in apartments and private houses, this requires compactness, noiselessness and sufficient power. Company RIELLO S.p.A. produces various options suitable for work in a 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 by hanging over a sink or a table.
The power of the products is small - up to 28 kW. Equipped only with steel heat exchangers.
Floor
It has much larger dimensions and weight, but is equipped with all modern improvements. Power is much higher: from 25 to 290 kW are indicators of 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 in low temperature mode. Its service life is longer - up to 25 years against 10-15 for steel.
Double-circuit
They heat water for the heating system and for hot water supply. In such devices, two heat exchangers are installed: the heat carrier, leaving the first, enters the second, where it heats water for washing dishes, hygiene procedures, and washing. The sizes of double-circuit boilers are larger.
According to the type of heat exchangers are distinguished:
- boiler with a separate heat exchanger: heating of the heat carrier for heating and for domestic hot water is carried out on 2 different elements;
- with combined - bithermic: hot water and heat carrier are heated alternately in one heat exchanger according to the coaxial type; such a model consumes less energy for heating, but gives less hot water.
The boiler heats 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 sizes are small. Possible floor and wall execution. The company produces atmospheric and turbocharged devices. The first take air for the burner from the inside, so they are placed only in well-ventilated rooms. Turbocharged models take air from the outside with a fan. They better remove the exhaust gas.
All single-circuit boilers can be remotely controlled.
Other classifications
Classify devices and other signs. According to the type of heat transfer, there are:
- Convection apparatus - standard heating on a flame of a gas burner.
- Condensation - heating is carried out in 2 stages. First, the energy obtained by condensation of moisture from 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 indicated temperature. Condensing apparatus is more economical, but more expensive.
According to the type of removal of combustion products, there are:
- Natural draft boilers - combustion products enter the chimney and are discharged by draft. An important working condition is a quality chimney.
- Forced draft models - fans are installed here that exhaust exhaust gases forcibly.
When choosing devices, other features are also taken into account: heat exchanger material, type of burner, frost protection options.
Mounting Features
The user needs to know about the main requirements for installing the device:
- Do not place the unit in a living room.
- In the utility room, the boiler is located 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 case and chimney become very hot during operation. If the device is placed next to a heat-sensitive surface, it is necessary to insulate this area.
- Before entering the boiler on the gas pipeline, a shut-off valve must be installed. This device is not included. With low water quality, it is recommended to install a filter.
At the end of the work, it is necessary to check the tightness of all connections. After that, they begin to check the equipment.
How to turn on the boiler
The gas boiler Beretta is installed and tested by a specialist. The first ignition is performed in his presence.
First check the following parameters:
- the availability of electricity, water and gas;
- chimney and air intake functionality;
- gas pressure in the gas pipeline;
- gas tightness;
- the presence of a security device.
After checking, light the boiler. The procedure is as follows:
- include power;
- open the gas valve on the incoming gas pipeline;
- set the temperature controller to +20 C;
- turn the knob to the desired position - summer, winter, heating water for domestic hot water.
The boiler turns off when the regulator is put into the off position. At the same time, the device is not disconnected from the mains, gas supply remains possible. If the user is 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 operation manual
The Beretta gas boiler manual contains precise recommendations for the operation of the device:
- If there is a gas smell in the room, immediately turn off the supply tap and turn off the device. The room needs to be aired. Prior to the arrival of the gas service, it is forbidden to use the device or attempt to troubleshoot it yourself.
- Do not block the ventilation openings, as this is a prerequisite for functioning.
- Do not touch the case with wet hands.
- Before inspecting, repairing or cleaning the device, disconnect it from the power supply.
- Flammable substances must not be stored near the appliance.
- 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 coolant. The easiest way to do this is to use ready-made work modes: winter and summer.
Beretta boilers are equipped with a self-diagnosis system. In this case, an error code appears on the LCD. This allows you to quickly identify the cause of the malfunction and eliminate the problem. Self-removal is prohibited.
Store the device before connecting in a warm, dry room.
Popular models
According to consumer surveys in 2019, the following models are considered the most popular:
- Beretta CIAO - wall-mounted double-circuit modification with a bithermic heat exchanger. Economical and compact option. The disadvantage is sensitivity to hard water.
- The Beretta Boiler is a dual-circuit design with a built-in 60 liter stainless steel boiler. There is a 2 liter expansion tank, so the boiler does not leak. There is no temperature control for hot water, by default it is +43 C.
- Novella Avtonom 55RAG is a 57.9 kW non-volatile outdoor model. Piezoelectric ignition.
- Beretta Novella 55RAI is a floor-mounted version with electronic control. A boiler is released with and without a boiler.
- Beretta Fabula - floor standing boiler. Equipped with an indirect heating boiler of 80 or 120 liters.
The cost of boilers is determined by power, design features, performance, material of heat exchangers and other factors. The wide range of prices: CIAO
costs up to 43 thousand rubles, Novella 55RAI - up to 93 thousand rubles
