Automation for gas heating boilers: device, principle of operation, review of manufacturers

Features and Properties

GSM heating boiler control has the following capabilities:

• ensure the required temperature regime in the house at any time of the year, and there is no need to be close to the boiler to change the temperature;
• from a distance, prepare the house for the arrival of the owners, setting a comfortable temperature there (even if the building has been empty for several weeks, its owners and guests will not have to return to the cold room);
• in winter, prevent freezing of pipes and their subsequent depressurization during unexpected frosts - you can increase the temperature in the boiler while away from home by simply sending a message;
  Boiler control via GSM - the possibility of optimal fuel consumption
• provide remote monitoring of the serviceability of the installed heating system - messages are sent in case of failures;
• heating operation in the shortest possible time in case of emergencies;
• ensure maximum fuel economy;
• increase the operating time of a gas boiler - due to timely response to emergency situations.

That is, GSM heating control by phone or via the Internet provides a previously inaccessible level of comfort in a country house or in a private home. This device is useful for those whose work involves frequent absences, who are often away, and have no one to constantly monitor the heating condition.

Remote GSM boiler control

Heating monitoring and control system

GSM boiler control is designed to control the operation of the heating system while being at a certain distance from the building in which it is located. This is an easy way to keep abreast of the current operation of heating equipment, as well as to find out in time about its breakdown. The user will need to install the sensor into the heating system, purchase and install the temperature control device in a convenient location. At the moment when the temperature changes to critical levels, an SMS notification will be sent by phone.

Purpose of the GSM boiler control module

The GSM boiler control module helps to start and stop the heating system using mobile communications, while at work or on vacation. The user will also be able to be informed about the temperature in the room, as well as critical indicators of the coolant via SMS message.

In addition, thanks to the operation of this module, it is possible to record parameters such as coolant temperature, room temperature, system pressure, power value and operating mode. All this is offered at a reasonable price. There are special programs for a mobile device that can greatly simplify and facilitate control of the boiler via the phone.

The main advantages of the GSM module are:

• ability to work with several phone numbers;
• the ability to obtain information about the operation of the heating system at a specific moment;
• function of changing the temperature level of the boiler and water boiler remotely;
• providing a lithium-ion battery, so that the device can work even when the power goes out.

Due to this, GSM boiler control is very popular today.

Thanks to this module, it is possible to control and regulate the heating system, regardless of the user’s location. You just need to send one SMS from any point, and you can set the required temperature of the coolant supply or the temperature of warm water in the boiler located in the country. Using the device, you can also adjust the functioning of the mixing valves. It can work in conjunction with a controller. The average price of GSM heating control is within 13,000 rubles.

Acquisition

You can order a boiler control system in our online store wholesale and retail. Here you will find a suitable device with the required configuration at the optimal cost, with a description and specifications. You can buy GSM heating boiler control by placing an order on the website or by contacting the manager by phone. The price for remote GSM control of a heating boiler is fully justified and is explained by the appropriate level of product quality, service and service life.

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Features of remote control

Controlling heating in a country house via GSM or via the Internet will be appreciated by owners of country houses or summer cottages designed for year-round use. If you have to leave the house unattended for a long time, concerns arise about the functioning of the heating system - for example, if the boiler goes out for some reason and does not turn on automatically, the system will freeze. This is fraught with depressurization of the circuit and the need to seriously invest in repairs.

Remote heating control has a number of advantages

:

• due to operation in an economical mode, energy costs are reduced and the life of the equipment is extended, since it wears out less under reduced loads;
• the heating system can be included in the general network of the house, created for engineering systems - this will reduce the total costs of their operation.

Boiler control, both via GSM (SMS) and via the Internet, makes it possible

:

• monitor the maintenance of the standard operating mode of the autonomous heating system with uniform heating of the entire house;
• if necessary, provide selective heating of rooms in accordance with personal preferences;
• prevent freezing of the heating system pipeline during a long absence of owners in the cold months;
• switch the heating system from economy mode to standard mode in advance so that the cottage or country house is warmed up when the owners arrive;
• monitor the condition and functioning of the heating system online and promptly receive information about problems.

Screenshot from the personal account of a GSM heating control controller.
An autonomous heating control system can be the first step towards creating a “smart home” and providing the most comfortable living conditions.

Which systems can be controlled remotely?

Automatic heating control is used for two-pipe autonomous systems with a membrane expansion tank and a pump for forced supply of coolant into the circuit. It is especially effective to control a system where each heating device is connected separately, through a distribution comb - a manifold. The system may include circuits with radiators and warm water floors.

The system is necessarily equipped with a safety unit, which operates automatically and prevents depressurization of the boiler water jacket and heating circuit due to excess pressure. Excess pressure is released through the emergency valve.

Additionally, equipment is installed that allows you to control the system - temperature and pressure sensors, devices that allow you to regulate coolant flow, controllers, and tools for creating a unified information network.

Weather-compensating system

Controlling a heating boiler is more effective if, in addition to temperature sensors installed in heated rooms, a device for measuring outdoor air temperature is added. This option provides precise temperature control and makes it possible to configure the system so that it independently adapts to changing weather conditions.

As a result, when it gets colder, the radiators will heat up more, and when it gets warmer, they will switch to energy-saving mode. This not only helps save energy, but also reduces the inertia of the heating system.

Wall-mounted weather-compensated heating controller for heating system control

Flexible zone control ensures a comfortable environment for people depending on the situation: for example, if there are many people in a room, it quickly becomes hot as bodies radiate heat. The temperature sensor in the room reacts to an increase in air temperature, as a result of which the heating of the radiators in this room is reduced to an optimal level.

Typically, a weather-compensated system is configured to automatically turn off the boiler if the outside temperature reaches a preset level. Wireless and remote control systems are ideally combined with weather-sensitive automation - the operation of the system does not require constant human intervention; it is enough to make adjustments to the operating mode as needed.

The best known manufacturers and models: characteristics and prices

"Kotel OK"

The most popular on the market, one of the best and most inexpensive GSM modules for heating boilers made in Russia. In addition to the price, it is distinguished by its compact size, extremely simple and easy setup, and the presence of an application that can send commands, including in the form of SMS, which is an excellent option that allows you not to use tariffs with Internet access.

The functionality of the device is quite simple, the minimum required: temperature control, setting alerts, checking boiler operating parameters, and the module also has a built-in relay that allows you to turn the boiler on and off.

Among the disadvantages, it is worth noting a rather simple application with the minimum required functionality and an outdated interface, the presence of an external temperature sensor with a cable length of only 0.5 meters, which does not imply its installation in other rooms remote from the boiler room. The antenna is also not remote, screwed into the device via a threaded connection.

XITAL GSM 4T

Another well-known, more professional and versatile device with a much richer package. The heating control functionality in it is approximately the same as in the previous “Boiler OK” - the minimum required, however, there are as many as 4 zones for additional devices (flow sensor, smoke sensor, motion sensor, flood sensor, door opening sensor, etc.). Also included is an electronic key and a reader (similar to those installed in intercoms), so you can influence the settings, if desired, only with an electronic key.

The main difference is the presence in the kit of two remote temperature sensors with a wire length of 10 m, as well as a remote wired antenna and a cord for connecting a backup external battery (unfortunately, there is no built-in one). Management and control can be carried out both via SMS and through the application.

The disadvantages, in addition to the lack of a built-in battery, are the ineffective and inconvenient, although understandable, application interface, less attractive appearance with exposed terminals and large dimensions. Please note that for heating you must choose a model that has a “T” at the end.

EVAN GSM CLIMATE

Also known as ZONT H-1, it features a more modern and convenient application, with ready-made “Economy” and “Comfort” modes, as well as the ability to program boiler operating parameters. It is enough to configure the boiler operating pattern once and the module will automatically issue commands to the boiler to change parameters depending on the time or day of the week. Control via a web interface is also available. The standard package includes one remote temperature sensor and a remote antenna.

How to choose a GSM module for a boiler

When choosing a notification module, it is important to pay attention to its functionality and technical characteristics:

• Control – settings are made using buttons on the touch panel and SMS commands sent from the phone. Programmers from leading manufacturers are controlled by special software. The companies Viessmann and Buderus produce programs for Android and iOS that allow you to quickly remotely access the boiler.

Equipment - depending on the selected model, the module is equipped with an automatic gas control system and remote room temperature sensors.

Number of control channels – this parameter determines how many temperature sensors and other equipment can be connected simultaneously. Standard models have two channels, one is used to connect a remote programmer for remote control of a gas boiler via GSM, the second is used to transmit signals via SMS messages.

Microprocessor - budget models of control units, have only a few simple functions and fixed operating modes. Premium class equipment, has a built-in weekly programmer for controlling the temperature of the gas boiler using GSM.

Battery – the control unit operates from the mains. In the event of a power failure, power is automatically switched to the battery. The battery capacity should be sufficient to ensure autonomous operation of the module for several hours. If power outages occur frequently, choose a battery with a larger capacity.

When choosing a module, they are guided by the recommendations of gas equipment manufacturers.

Cost of GSM remote control for boilers

A gas heating boiler with a GSM remote control module consumes up to 30% less gas. The initial costs of installing a remote controller will pay off within the first heating season. The cost of the remote control, depending on the chosen model and configuration, varies from 5-12 thousand rubles.

Some manufacturers of gas equipment offer consumers boilers with a built-in GSM control unit. In this case, you will need to buy remote room thermostats and configure them to operate the module.

How to install a GSM module on a boiler

It is not difficult to organize control over the operation of the boiler yourself. To do this you will need to do the following:

1. Using special connectors, connect the control unit to the boiler controller.

Insert the SIM card into the slot. To prevent third-party users from connecting, set a PIN code.

Enter all phone numbers to which alerts will be sent.

After completing all the manipulations, a verification code is sent from the phone, and in response you will receive a message about the operating parameters of the boiler. The information received will show that the unit is connected.

It is recommended that the installation of the remote control and GSM unit be carried out by qualified specialists - electrical engineers. Independent work is carried out at your own peril and risk, and is the reason for refusal of warranty service.

How to choose the right model

The main criterion is the specification of the model. There are devices that are suitable only for certain models of boilers from one manufacturer; they are produced as additional equipment for the boiler; information about their purpose is usually contained in the name itself. Of course, if this is possible, it is better to choose a GSM module from the same manufacturer as the boiler (it will be tailored to a specific line of models and their specifics).

But there are also universal models that are suitable for absolutely any boiler that has the appropriate terminals; it is these universal GSM modules that are discussed in the article.

Today, the choice of universal GSM modules is small (about 20-25 models), so it is difficult to identify a sufficient number of criteria. We recommend studying the most famous and successful models (see below) and choosing from them, studying the functionality and convenience of each, comparing prices. But we also recommend paying attention to criteria such as:

1. The presence of an application and web interface that significantly simplifies management and allows you to see and analyze work statistics. If the manufacturer has not provided interface examples, it is worth looking for screenshots in the image search of any search engine.

   
   An example of the web interface of ZONT modules, the interface is available in your personal account on the manufacturer’s website.

2. Standard equipment. Some modules are supplied with external temperature sensors, which can be placed in rooms remote from the boiler room and be guided by their measurements, which is an obvious advantage. A good option is the one with an external antenna, which allows you to seriously improve the quality of communication, and in some cases, when you move the antenna higher, you can even catch a signal that is missing on the ground floor or in the basement of a remote house.
3. The capacity of the built-in battery should be at least 100-150 mAh, with these parameters it will be enough for 2-4 hours of operation of the module.

Basic automation functions

The main purpose of automation in heating systems is an instant response to changing situations. One of the main tasks of automatic control devices is to stop the supply of gas to the work area. Situations in which it may be necessary to cut off the supply of household gas may be the following:

• poor operation of the exhaust device, deterioration of draft, in which there is a high probability of harmful combustion products entering the interior;
• sudden changes in operating pressure in the main gas pipeline;
• unauthorized flame extinguishing on the main burner.

In these situations, it is thanks to the automation of the gas boiler that the supply of gas fuel is controlled, which ensures the safety of residents. It is for safety reasons that, in accordance with existing standards, it is necessary to equip all old models of gas heating equipment with automatic systems, the standard equipment of which did not include equipping with these devices. As for the latest gas heating units, these are boilers with automation.

Main article: DIY gas burner.

Popular models according to user ratings

The availability of a convenient option has created the preconditions for creating demand for new equipment that can solve many problems. The offer was not long in coming and many companies appeared on the market offering their equipment for sale. The following manufacturers received the greatest fame due to high consumer ratings:

• Vaillant;
• Wisman;
• Buderus;
• Protherm;
• Navien;
• Kiturami;
• Evan;
• Xital.

The list of VIESSMANN products includes heat generators in which adapted units are installed that can interact with boiler control controllers. Also different is the equipment, which is equipped with the latest algorithms that increase the reliability of cascade control.

Plus, the devices of this company are designed to duplicate the system using an additional network; they have the ability to install an additional SIM card.

Elements of a gas boiler control circuit

The electrical circuit of a gas boiler includes blocks of electronic boards and their radio elements. You can consider an example of a diagram of a typical Ariston UNO 24MFFI unit, which displays the location of the boiler elements.

A – temperature regulator.

A11 – flame sensor.

B – button that allows you to clear the error and reboot the device (Reset).

C – on/off (Power).

D – switch to “Comfort” mode.

E – hot water temperature regulator.

F, G, H, I – LEDs that indicate faults or certain operating modes.

J – connector for connecting a thermostat.

K – pump power supply relay.

L – three-way valve power relay.

M – fan control relay.

N – gas valve relay.

O – remote control control connector.

P, Q, R, S – jumpers responsible for sparking, ignition, temperature selection and smooth ignition with maximum power.

T – two-wire connector for external thermostat and control of the set temperature.

U – power supply of the electronic circuit.

Connection CN301 terminal block, to which the gas valve, circulation pump, transformer and three-way valve actuator are connected.

The CN201 connector is connected to supply and return water temperature sensors, a chimney sensor, and a water flow sensor.

Connector CN102 in position A is responsible for setting the ignition power of the burner device. During the setup process, the red sensor will blink.

Jumper CN101 on A turns off the ignition delay, in position B it turns on the delay by 2 minutes.

CN104 – sets operation in different temperature ranges: A – 35-45ºC, B – 43-82ºC.

CN100 is responsible for setting the maximum power of the unit.

Advantages and disadvantages of GSM devices

This is what the client will receive by connecting the GSM module:

Safety. The main purpose of the GSM module is to control the heating system and additional equipment, timely informing about existing or possible breakdowns. By connecting, for example, an additional broken glass sensor, you can quickly react if thieves break into your house.

Comfort. Management of key indicators of heating and related systems without the physical presence of the consumer next to them. For example, when returning home, you can easily preheat the water in the boiler to the required levels or increase the temperature in the entire house by sending one message.

Saving. When no one is home, the temperature can be as low as possible, and you will thus reduce your heat bill by a significant amount. And the absence of constant load on the heating system will help extend the life of the boiler, boiler and other equipment.

The diagram shows all the benefits of the module that its owner receives. They are implemented through proper device settings and correct connection

Thanks to these three advantages, the commercial attractiveness of the module is formed.

And GSM equipment also has its drawbacks. Fundamental, of course, is the high price of the device. Users note the need to constantly monitor the cash balance of cellular communications, dependence on the operator’s work and coverage (which is especially inconvenient for owners of houses outside the city or in villages remote from metropolitan areas). Also inconvenient is the complexity of connecting yourself and the additional costs of installation.

Reviews of GSM boiler control modules: advantages and disadvantages

Remote heating control system "GALAN-GSM" from.

GALAN- GSM GALAN- GSM
• Ability to control the on/off of the boiler and the “ NAVIGATOR”

«.

• Temperature control of the heating system based on room temperature with a built-in sensor.

• Adjusting the temperature of the heating system based on the temperature of one of the remote temperature sensors.

• Accuracy of temperature control according to the set value with hysteresis +-1 deg. Celsius.

• Warning when the heating system temperature is exceeded.

• Indication of loss/appearance of mains voltage.

• Control of two independent devices (three relays with changeover contact).

• Organization of a security system with electronic, programmable keys.

• Connecting an external microphone. (Room listening)

• Connecting glass break sensors, motion sensors, door opening sensors. (up to 4 zones)

• Ability to view the temperature of up to 5 rooms, and also choose which sensor to use to regulate the temperature of the heating system.

• Availability of a siren activation relay.

Impressive functionality isn't it? You can organize control not only of the temperature of the heating system, but also of turning on, say, the lights in the house in the evening, the water heater or other devices, for example, a spotlight when approaching the dacha. And the integrated simple security functionality will allow you to be aware that everything is fine at home.

Expert advice: how to protect yourself from controller breakdowns

Repair of control units for gas boilers is not a common occurrence. However, before purchasing equipment from a certain manufacturer, ask if there are service centers in your region.

To protect yourself from troubles at the wrong time, you should, with the help of specialists, inspect the boiler before and after the heating season. A network voltage stabilizer will help protect the electrical controller from pressure surges, thereby protecting the device from damage.

You can prevent possible damage to the control unit the first time it is put into operation. The unit system is complex and fragile in its own way; settings may be lost during transportation or assembly of the equipment. Therefore, during installation, they first carefully check all the subtleties associated with the wiring, water and gas supply, and then check the operation of the CU sensors.

The latest models of controllers have been brought to almost complete independence. The gas boiler control unit reports faults using indicators, as can be seen in the diagram below.

If you notice any failure, even a minor one, it is better to immediately call a boiler service specialist, this will prevent a serious breakdown and save yourself from more serious problems.

Heating appliances are often the subject of experiments, which result in towel dryers for example. At a technology competition in 2007 in the United States, among the various designs one could see a radiator in the form of a rack of hangers, designed in the shape of a chair with a heated seat.

Modern home heating equipment is as convenient as possible for users. Having set the necessary parameters for the device, you do not need to constantly monitor its operation, relying on the automatic mode. And timely diagnostics of heating devices will allow you to avoid troubles due to incorrect operation or breakdowns.

An example of installing the controller can be found in the video:

Advantages of remote control systems

First, you need to determine the method of future remote control of the heating boiler by choosing one of two options. In the first case, the boiler is controlled via the Internet, for which you must have an Internet connection. In the second case, this mission is performed by cellular communications, which is more suitable for a home located at a distance from city communications.

Internet control

If you install remote control of a gas boiler using the Internet, you can get a series of additional benefits.

After installing the necessary control elements into the heating system, the following options open up:

• remote control of various functions of the heating boiler, including operating modes of the circulation pump;
• by installing the required number of sensors, you can determine different temperature conditions for several zones;
• remote coordination of hot water supply, in case of installing a double-circuit boiler;
• 24-hour monitoring of the current state of the operating heating system;
• the most economical fuel consumption, because during a long absence there is no need to maintain the usual microclimate.

The indicated advantages constitute only a basic set of possibilities provided for an individual heating system. If desired, control over the internal temperature of the house can be taken to the next level by using a more versatile version that uses an Internet gateway and an automated heating control unit.

In this case, it will be possible to additionally control heating elements, oil radiators or electric convectors. Among other things, the list of systems for remote control of the boiler may include a fire alarm, which will not be superfluous if the house is built of wood.

Cellular control

An alternative to the control unit for the heating system of a country house is a GSM module operating from a cellular network. Remote activation via SMS messages in order to transfer information to the control panel of the water heating boiler has personal advantages:

• small dimensions of the device that interacts with a smartphone;
• mobility – easy to install in any suitable location;
• ease of operation;
• For insurance, you can use two communication lines at once; the device is designed to install an additional SIM card.

This device is used when it is not possible to connect to the Internet. This quality allows the use of a remote control unit for a gas boiler even in remote areas.

Controlling a gas boiler via a smartphone: how to properly organize remote control

Everything that seemed fantastic and impossible yesterday is becoming a reality today. This also affected autonomous heating systems.

Along with Russian stoves laid out in the “old-fashioned” way, “smart” heating units have appeared that are capable of receiving commands and changing the operating mode from a distance. Remote control of a gas boiler via a smartphone has become accessible and popular.

We offer useful information on using a mobile device as a control panel for the heating system of a house with a gas boiler. If your equipment runs on natural gas, but you have not yet used remote control, pay attention to the new opportunities - with them, life in a private home is much more comfortable and attractive!

Pros and cons of the device

Like almost any technology, the GSM module has a number of advantages and disadvantages. Although, of course, it has more advantages, thanks to which the device is becoming increasingly popular among domestic consumers.

This is facilitated by the development of the production of such systems by Russian and foreign companies, as well as the increasing number of boilers on which such a device can be installed.

Advantages of the module

The main advantages of the device are:

1. When using it, there is no need to maintain heat in a room where there are no people. The heating can be turned on, for example, by sending an SMS an hour before arriving at the house.
2. The ability to always control the temperature in the room, leaving the boiler to operate in autonomous mode and without fear of an accident. Indeed, in this case, the GSM module will immediately inform the owner about all problems.
3. Receive a warning about equipment shutdown as a result of a power outage. Knowing about the situation that has occurred, the user can take measures to correct it and eliminate the negative consequences that could result from stopping the heating system.

Disadvantages of the system

Naturally, when choosing such a device for your home, you should also know about its disadvantages. There is only one main drawback - the high cost of the entire complex, with the help of which the system is remotely controlled. Therefore, when purchasing a GSM controller, it is worth considering whether it is really needed in your home, or whether the system can be replaced with conventional automation that copes with all problems without human help.

Sometimes a problem with using the device may arise when the owner travels, for example, abroad. In this case, system messages may simply not reach the recipient. And using roaming will not be very beneficial for simply informing via SMS about the operation of the boiler.

Options for controlling the boiler via smartphone

Three solutions are available for remote control of a domestic gas boiler:

• GSM module connection;
• use of a “smart thermostat” via WI-FI communication;
• installation of thermostats.

Each remote control method is good in its own way, and its choice depends on several factors: availability of the Internet, gas boiler model, financial capabilities.

Let's consider all three options - one of them may suit you, and as a result of a partial upgrade, managing the heating system will become much easier.

Option #1 – connecting the GSM module

This is the most common solution, applicable even in areas not covered by the Internet.

The gas boiler is controlled using a GSM unit - a compact controller module. A SIM card is inserted into it, which personalizes the owner and makes it possible to keep in touch with remote equipment

In order to save money, the homeowner can choose the most suitable cellular operator and favorable tariff.

The GSM module is programmable and its operating principle resembles a computer with limited functions. This block is connected to sensors installed both in equipment and in the environment - in rooms, on the street. Depending on the parameters produced by the sensors, the gas unit automatically changes the program or is controlled from a smartphone.

To communicate with the control unit installed in the house, you will need any electronic device - a laptop, tablet, but it is most convenient to use a smartphone, which is more compact and versatile

For ease of control, selection of modes and programs, developers have created applications for various operating systems: iOS, Android, Windows Phone.

There are several modes by which a gas boiler is controlled:

• Fully automatic control. The unit operates according to the specified parameters entered into the program in advance. If changes are required, the program should be adjusted.
• Transmission of alarm notifications in the event of emergency or repair situations. If there is a gas leak or the boiler suddenly stops working, a signal is sent to the smartphone.
• “Communication” using SMS messages. There is a list of commands that the automatic gas boiler recognizes and then makes changes to the operation of the equipment.
• Advanced management options. Using a special program, you can control all systems connected to the GSM unit.

The advantage of remote control via mobile communication is considered to be almost constant control and unlimited possibilities, depending only on the selected application and installed equipment.

A few more advantages of using a GSM module:

To communicate with the control unit installed in the house, you will need any electronic device - a laptop, tablet, but it is most convenient to use a smartphone, which is more compact and versatile

For ease of control, selection of modes and programs, developers have created applications for various operating systems: iOS, Android, Windows Phone.

There are several modes by which a gas boiler is controlled:

• Fully automatic control. The unit operates according to the specified parameters entered into the program in advance. If changes are required, the program should be adjusted.
• Transmission of alarm notifications in the event of emergency or repair situations. If there is a gas leak or the boiler suddenly stops working, a signal is sent to the smartphone.
• “Communication” using SMS messages. There is a list of commands that the automatic gas boiler recognizes and then makes changes to the operation of the equipment.
• Advanced management options. Using a special program, you can control all systems connected to the GSM unit.

The advantage of remote control via mobile communication is considered to be almost constant control and unlimited possibilities, depending only on the selected application and installed equipment.

Depending on the modification of the unit, you can connect several mobile phones to the module, and then from 2 to 10 people will be able to monitor the operation of the unit

In addition to the gas boiler, you can connect sensors installed in various rooms heated by the boiler to the module: in the kitchen, in the hall, bedrooms and even in the basement or attic

In addition to the controller, key reader, antenna, sensors and power supply, you can connect a microphone, gate control unit and other “smart” devices

By installing temperature sensors outside, you can set automatic mode changes depending on weather conditions

Monitoring the operation of the boiler by all family members

Connecting additional sensors to the program

Possibility of connecting basic or extended configurations

Automatic operation of weather sensors

Problems can happen if the cellular connection is poor. The homeowner needs to carefully monitor the expenditure of funds - if the balance is negative, the ability to control the heating equipment will be interrupted.