Thermostat for a heating boiler: a temperature controller or something more? Thermostat for a heating boiler: types and installation of the device Thermostat on a heating boiler.

It is usually difficult to maintain the same temperature in a room, so a temperature regulator for a heating boiler helps to combat this problem. Everyone has come across a situation when it is very cold at home in the morning, and in the evening, because of the stuffiness, you really want to open the windows.

The thermostat controls the temperature and creates comfort in the room. Its main advantage is savings in energy and fuel costs. Also, thanks to the device, the heating equipment gets a longer service life.

The thermostat contains a sensor, which sends information to the boiler about the required air temperature. In this article we will talk about the temperature regulators of the heating boiler, its types, principles of operation and the main advantages.

A room thermostat allows you to automate combustion processes and transfer energy to heating radiators. And also this device minimizes the risk of accidents that are associated with a sharp increase in temperature in boilers.

A room thermostat for a solid fuel boiler makes it possible to make heating most suitable for residents of a house or apartment. If the temperature in the rooms is comfortable, the boiler will simply not start up. Programmable electronic room thermostat to simplify the settings of heating equipment.

You can set the desired temperature for any period. If the owners are not at home from 7 a.m. to 4 p.m. to 5 p.m., then you can set the temperature for this period using the thermostat to about 15-16 degrees, and for the rest of the time - 23 degrees. This approach allows you to effectively save electricity and the boiler resource itself.

If the room thermostat is installed in a country house that you visit only on weekends, set the temperature from Friday to Monday morning. The device will not work for the rest of the week.

Overhead room thermostats for boilers are very convenient due to their miniature size. It easily locks onto and controls its temperature, controls heating devices. If you want to optimize heating costs, the purchase of this equipment will be very useful.

The thermostat for a gas boiler is a compact device equipped with a user-friendly interface in order to set the required temperature regime. Any boiler thermostat is equipped with a temperature sensor and has terminals for connection to the boiler.

Thermostat for a boiler is a shut-off and control valve for automatic regulation of the boiler, corresponding to the air temperature set by the consumer.

The thermostat has a built-in temperature sensor, which is installed in an area free from direct influence of heating devices and provides the thermostat with information about the air temperature in the area where the temperature sensor itself is located. Based on this data, the thermostat controls the heating boiler in the room.

    They are classified according to various criteria:
  1. appointment;
  2. installation method (installation);
  3. types of used temperature sensors;
  4. functionality (programming, remote control).

It is recommended to install thermostats in the same room where heated floors are installed, except for rooms with high humidity) and place them in a convenient place on the wall in the immediate vicinity of light switches and sockets.

If you are a fan of various novelties, modern devices and simply stylish things, then you should pay attention to the Salus thermostats. For connoisseurs of the European manufacturer, who are usually famous for their functionality and reliability, we recommend paying attention to the Auraton room thermostats.

If your main goal is to buy an inexpensive thermostat with a weekly cycle, then the Computherm programmer is ideal.

    Instruments for controlling the operating modes of boilers are divided into two main types:
  • wired - the regulator is connected to the controller via a wired connection;
  • wireless - regulate the process of heating the house from a radio signal.
    Functionally, room thermostats for heating are:
  1. simple;
  2. programmable;
  3. with hydrostat function.

Simple devices are only able to maintain a stable set temperature in the room, do not have a direct effect on reducing gas consumption.

    Programmers have a number of functions:
  • remote control of the boiler operation parameters;
  • installation and adjustment of day and night modes of equipment operation;
  • programming the operation of the heating system on days of the week;
  • significant reduction in fuel consumption.

The hydrostat function allows you to control the humidity in the premises, reduce or increase it, depending on the preferences and desires of the owner.

Wired devices are distinguished by their reliability and simplicity of design, low cost, and long service life. A thermostat for a heating boiler of this type is able to maintain only one temperature regime, which is set by changing the position of the handle located on the front side. On most devices, the range of possible temperatures is 10-30 ° C.

Depending on the brand, the room thermostat can be connected to the power supply from the mains, directly from the boiler controller or from the battery.

The main disadvantage of this type of device is that it is possible to set only one temperature value. To change it, you need to reinstall the handle to a different position.

In addition, certain inconveniences are caused by cable laying, therefore it is better to install a wired thermostat to a gas boiler during finishing work and installation of the heating system.

If the heating system is already installed, it is more convenient to install a wireless programmable thermostat for a gas boiler, the installation of which will not violate the aesthetics of the interior.

The wireless thermostat for gas boilers consists of two units. One of them is placed near the heater and is connected to the gas valve or controller using terminals. Another is installed in the room from which it is planned to monitor the operation of the boiler equipment.

Communication between the blocks is carried out over a radio channel. For ease of use, the control unit is equipped with a miniature keyboard and a small LCD display.

A wireless temperature controller for a heating boiler is installed simply and quickly, does not require any significant costs for the purchase of fasteners.

A significant drawback of devices of this type is the limited resource of the batteries, which must be changed periodically. When the device is disconnected from the power supply, the sensors will stop transmitting a signal to the heating boiler, which will be guided only by the readings of its meters and excessively heat the coolant.

All modern thermostats for heating boilers, powered by batteries, have a warning function about the state of charge of the batteries. A room thermostat for a gas boiler allows you to fully automate the heating control process.

Wireless programmers will facilitate the control of heating devices located in hard-to-reach places. You do not have to pull a pile of wires to a convenient location for the temperature sensor. The wireless boiler thermostat consists of two modules that work by radio.

A wireless room thermostat is indispensable when all the decoration in the room has already been completed and it is not possible to lay a cable from the thermostat to the heating boiler or the "comb" of the underfloor heating control.

In this case, the wireless thermostat is installed in a room whose temperature needs to be controlled, and the receiver, as a rule, is located in the immediate vicinity of a heating boiler (gas or electric), a thermoelectric actuator, or other devices for regulating the heating system.

The transmission of control commands between the thermostat and the receiver is carried out via a radio frequency channel at a frequency of 433.92 MHz or 868 MHz. Thanks to the individual coding of the signal in each thermostat-receiver pair, reliable interference-free communication is ensured.

The thermostat is powered by 2 AA batteries. The service life of one set of batteries is approximately 12 months, depending on the communication range and the presence of obstacles between the thermostat and the receiver. The receiver is powered from a 220 V network and has powerful switching relay contacts designed for loads up to 3000 W (depending on the model).

    Devices of this type consist of two elements:
  1. The working part is mounted directly near the boiler and is connected to its terminals with a special cable.
  2. The second element is a display tracker. It is usually installed in a heated room. The sensor can be equipped with a touch screen or a push-button screen. These nuances affect the cost of the device.

Devices communicate with each other using a radio channel that does not affect other electronic devices in the house (the latter also do not affect wireless room thermostats for gas boilers or for any others).

They can be conditionally divided into simple and complex. The first includes, for example, a wireless thermostat for a gas boiler, the function of which is to turn off or supply gas, depending on whether the air temperature in the room has risen or dropped. They are relatively inexpensive, but they also have only two functions: turning the unit on or off.

More sophisticated wireless thermostats, both for gas boilers and for all other types of heating equipment, are equipped with a program that allows you to make weekly settings with hourly changes in air parameters.

As a rule, these models are volatile and operate either on batteries or on rechargeable batteries that need to be recharged. If you have a long trip, then it is worth taking care in advance to ensure that the supply of batteries is sufficient for the entire period of absence.

Advantages of wireless thermostats

A room thermostat in a gas boiler circuit precisely regulates the temperature and reduces energy consumption. Besides, it works in automatic mode - there is no need for manual settings.

    The use of the programmer relieves the user of problems with maintaining the microclimate in the house or apartment, opening the following possibilities:
  • Accurate and fast temperature control. The alignment accuracy is 0.3 degrees.
  • Day-night modes, functions of setting temperatures by time intervals for several days in advance.
  • Connecting a GSM module or a control system via Wi-Fi further reduces the need for human participation in boiler control.
  • Air temperature regulation in different rooms.
  • Economical operation of gas equipment. A thermostat costs money, but pays off by reducing overall heating costs, including electricity, by 20-25%. The fact is that when the boiler is turned off, the automation turns off the pump, which is its consumer.

Payback is achieved in two seasons of operation. A reduction in the number of starts / shutdowns leads to a saving in the resource of a gas boiler, the cost of which exceeds the price of additional equipment. Programmable devices regulate the threshold of the temperature sensor.

And the use changes the delay time for turning on / off the gas boiler, which minimizes the likelihood of automatic operation during short-term temperature fluctuations, for example, due to a draft.

A modern wireless thermostat with an ergonomic design that fits seamlessly into any interior design. No wiring is required for installation, which is convenient when designing a system in old houses.

The only drawback is that the thermostat and the boiler can work together efficiently, often if they are made by the same manufacturer. Differences in electronics sometimes make devices from different manufacturers incompatible.

Although these types of devices are the easiest to operate, they are no less high-quality and efficient in operation than their expensive electronic counterparts.

The main field of application for mechanical devices is thermostats for wood-fired heating boilers or other solid fuels, but they can also be installed on equipment that runs on gas. Depending on the brand of the boiler, they can be mounted both horizontally and vertically, which does not affect their efficiency.

    According to its structure, a mechanical thermostat for a heating boiler is divided into:
  1. Devices based on a bellows filled with a liquid or gas that is sensitive to changes in air temperature. Their task is to shut off the supply of the carrier to the system if the indicators become higher than the specified ones, and to pass it when the batteries have cooled down, and with them the air.
  2. Temperature regulator for solid fuel boilers, based on a bimetallic plate, bending when the temperature rises, and shutting off the supply of electricity to the heater, and reconnecting it to the network when it decreases, and it straightens.
    The main advantages of the device:
  • low cost;
  • long service life;
  • they are subject to repair in the event of a breakdown;
  • well tolerate voltage drops in the network.
    The disadvantages that thermostats for heating boilers "suffer" from are the following:
  1. Manual setting is never accurate, so you should expect that the difference between the set temperature range can be 2-3 degrees with real heating of the air.
  2. Each time when external factors change, such as warming or cooling, the presence of sunny weather or lack of it, either you have to endure the heat in the first case, or a cold snap in the second, or manually make adjustments.
  3. The temperature range for mechanical devices is limited and there is no adjustment function for the time of day and days of the week.

If there is a question to buy, an electronic or mechanical thermostat for a boiler, then it should be noted that, in addition to the difference in price, the former have significant advantages in tinctures and the way they are controlled.

A thermostat for an electric heating boiler, regardless of its principle of operation, is equipment that is capable of controlling the operation of a heating element, depending on the temperature of the coolant in the heating system of the house or on the ambient temperature.

In a simplified way, the operation of any thermostat can be represented as follows: the user on the equipment panel sets the required temperature range for either the coolant in the heating circuit or the air in the room. The thermostat switches on the boiler.

The latter works until the temperature of the coolant or air reaches the specified upper limit. Then the thermostat turns off the boiler heating element. Heating automatically turns on when the room temperature does not fall below the limit specified on the thermostat.

As a result, such automation for electric heating boilers without constant human control is capable of maintaining the desired microclimate in the house and allows rational use of the energy carrier.

The thermostat for heating can be mechanical and electronic, wired and wireless. The price varies depending on the type of equipment. Each type of thermostat has its own advantages and disadvantages.

The block-by-block principle of operation of the control system is shown in the figure:

To better maintain the microclimate in the premises, sensors that monitor the air temperature in the room help. It is customary to call them thermostats and add the word "air".

Thus, it turns out that the thermostat simply maintains the temperature of the coolant in a certain range, and the thermostat works more accurately, stabilizing the microclimate of the room.

If the air in the room is additionally heated by some sources, for example, by the sun's rays through the glass of windows or from the heat of operating electrical appliances, the thermostat will not quickly sense these factors, and the thermostat will react quickly, saving energy and equipment resource.

    Thermostats operate as part of electronic automatic devices, have a certain temperature stabilization range and, by their design, can transmit information to the logic and control unit:
  • by wire;
  • using radio waves.

They all need power supply. The former are supplied with electricity using the power supplies of the circuit, while the latter are powered by built-in batteries or accumulators.

To save their energy, intermittent mode is often used, when the air thermostat takes measurements for fractions of a second and transmits them to the logic block, and then turns off for a few minutes. The following measurements are repeated in a similar cycle.

    The quality of the room temperature to be maintained is influenced by the installation location of the thermostat. For example, it must be borne in mind that:
  1. additional appliances often work in the kitchen, emitting heat, which will be taken into account by the thermostat;
  2. when heated, air masses rise to the ceiling, and near the floor the temperature decreases;
  3. when the vents are opened, heat exchange with the street begins;
  4. isolation of the thermostat from natural air circulation disrupts the operation of the automation;
  5. Frequent use of the door can affect the mechanical contacts of the sensor located in the vicinity.
    Logic blocks equipped with microprocessor control circuits in automatic operation have different functions:
  • individual models allow you to set the temperature regime in the rooms, depending on the time of day (during working hours, comfort is created, and at night - savings) and the day of the week;
  • availability of the "frost protection temperature" mode;
  • installation of protection against the loss of communication between the receiver and the transmitter, when the boiler control switches to the mode of "memory of switching cycles" for the last 24 hours;
  • the function of accounting for the operation of heating equipment, as on separate electric meters;
  • use of potential-free executive contacts;
  • increased communication range between transmitter and receiver;
  • protection of radio channels from interference;
  • touch control;
  • the presence of a program output timer for a period from one hour to several months for setting your own settings. This is convenient to use when you are away from the premises for a long time, for example, when traveling on business trips or vacation.

Many world famous manufacturers are engaged in the production of thermostats and air thermostats for electric boilers.

    Devices provided by companies are popular:
  1. BOSCH;
  2. Ariston;
  3. SALUS Controls Ltd;
  4. Viessmann;
  5. Vaillant;
  6. Ferolli;
  7. Baxi;
  8. Beretta;
  9. Alpha Calor.

When choosing a temperature control scheme, a thermal sensor should be selected for the specific conditions of its operation, taking into account the needs of the consumer.

Room temperature sensor for gas boiler

On a large living space, it is advisable to use weather-dependent automation. Under such conditions, the function of replenishing heat energy losses is assigned to the boiler.

Outside the room, a special remote sensor is installed, according to which the boiler operates. To choose the optimal operating mode and correctly configure the equipment, it is better to contact a specialist.

In the absence of special devices, the boiler has to be adjusted manually, focusing on the temperature of the coolant. This is quite inconvenient and completely wasteful. But if you buy a room thermostat and set it up correctly, you can see a number of benefits.

For example, an optimal comfortable temperature for living is set in the room - 22 degrees. The threshold for the most powerful and high-precision thermostats is 0.25 degrees.

As soon as the value set by the user reaches 22.25 degrees, the automation turns off the heating system and. Until the sensor gives the boiler a signal that the air temperature has dropped to 21.75 degrees, the system will not turn it on. As soon as the signal is received, the boiler starts to heat the room.

The air cools down much more slowly than the coolant in the heating system, therefore, using a thermostat, you can reduce the ignition cycle of the boiler and circulation pump. When the weather is sunny outside and the room warms up a few degrees from the sun's rays, the heating system saves energy and rests.

Thus, by ordering a room thermostat for gas boilers in an online store or another place, you can even leave in the winter, leaving your home and not worrying about whether it will be warm and comfortable there.

By design, thermostats are divided into types: wireless and with wires for communication with the boiler. The thermostats are installed in a convenient place, the temperature sensor is connected, connected to the boiler control system and used.

Room thermostats need a constant supply of air for proper and proper operation, so they should not be covered with curtains or blocked by furniture. Devices adjacent to an electric thermostat can interfere with the correct operation of the device: lamps, televisions, nearby heating devices.

The programmable electronic room thermostat allows you to select the desired and comfortable temperature at any time, it is easy to reconfigure and change the operating mode. The time timer allows you to set a different heating pattern on weekdays and weekends.

Some timers allow you to set different parameters for each day of the week, this can be useful for people who work part-time or in shifts. Many Terneo and KChM models are equipped with such thermostats.

The programmable room thermostat allows you to set individual heating standards for each day in accordance with your lifestyle and maintain the temperature of the house at all times, regardless of the presence or departure of the owners.

Connecting the thermostat to the boiler

After choosing a model, a person usually thinks about how to connect a room thermostat to a gas boiler, electric, etc. The launch is carried out in accordance with the recommendations described by the manufacturer in the data sheet for the device. Find the required section in the documentation and look carefully at the diagram.

Professionals agree that installation work should be carried out in residential premises at a distance from electrical equipment, namely TVs, lamps, refrigerators, etc.

In this case, the device is located far from the boiler and is responsible for the "turn on / off" heating function. Unlike previous versions, it sends a signal to the control node. Modern double-circuit boilers are equipped with expensive thermostats (Russian brand AOGV).

The capillary type room unit can be installed separately, fixing it to the wall with screws and connecting the wires.

    To do this, we adhere to the scheme:
  • We connect the neutral.
  • Wire for supplying power to the boiler. It should link the thermostat and voltage sockets. The process will make it easier to have an anchor.
  • The box is closed.
  • Initial temperature parameters are set.
  • The demanded thermostats of certain brands, for example, Protherm, are controlled by means of a remote control, and the option is typical for boilers of any type.

The thermostat focuses on the degrees, and reacts to the slightest fluctuations in them. The temperature in the house is usually based only on the system's climate microcontroller. The device should be placed in a rarely visited room.

    Tips for connecting the thermostat to a gas heating boiler:
  1. In order for the temperature in the room to be measured correctly, it is worth freeing up air access to the programmer.
  2. Do not cover appliances with pieces of furniture.
  3. Install in cool rooms and where residents are most of the time.
  4. It is worth making sure that no direct sunlight falls on the device.
  5. It is not recommended to install in the vicinity of heating radiators or heaters.
  6. It is necessary to protect the devices from drafts.

You can buy everything, and if you wish, you can assemble the thermostat yourself with your own hands. The design does not require rare radio components, but you cannot do without certain knowledge and experience in working with such components.

To begin with, we take into account the fact that automatic devices are prone to self-generation (self-excitation). Therefore, the proximity of the sensor to the device can stimulate it to uncontrolled switching on or off.

These aspects should be taken into account in the scheme of a simple mechanism. The sensor will replace the thermistor, and when it heats up, its resistance will drop. The part is included in a circuit with a variable resistor, which is responsible for the temperature indicators required for the sensitivity of the thermostat, and a voltage divider.

Device action

At high temperatures, the unit reacts to the operation of the cooling system. In this case, the resistance of the thermistor is negligible. Cooling the air activates its rise, and affects the increase in voltage across the divider.

At maximum resistance, the thermistor turns on, and the process of charging the capacitor begins. The chain reaction is caused by turning on the fan. To get rid of autogeneration, you should resort to using blocks. They will temporarily provide a turn-off delay, and the time interval can be significant.

    The thermostat has a universal purpose, and can be used in rooms where constant temperature control is required.
  • It is recommended to install the device in the room at 20 degrees.
  • Night mode should vary between 17-19 C.
  • Practice convinces of the simple process of assembling the thermostat.

The device is indispensable for owners with autonomous heating. After all, it's easy to buy an irreplaceable part for a couple of hundred rubles, capable of ensuring the safety and functionality of the heating system, than to repair it in the near future. You will be able to control the volume of water supplied to the pipeline and batteries, and save on heating resources.

A device such as a room thermostat for a gas boiler is an important element in a heating system. Its main task is to compare the data entered from the temperature sensor specified by the user. This allows you to turn on and off the heating in a timely manner, which minimizes energy consumption, while obtaining the optimal temperature in the house.

A thermostat is required to minimize energy consumption

general description

The room thermostat for a gas boiler consists of 2 metal strips used as an electrical contact for a switch in the heating system circuit.

The nominal contact drops with a sharp increase in temperature, due to this, the heating function is turned off. When the microclimate changes, the necessary valves are automatically turned on and the boiler starts to work again.

The body of this device is usually made of white plastic. LEDs are used to illuminate the display. The range for determining the temperature in the house for many devices is in the range of 0 ... + 45 ° C.


In addition to saving finances, there are many more advantages.

Usually thermostats for a gas heating boiler are purchased to save money. Lowering the room temperature even by a few degrees reduces gas consumption by 5%. Due to the fact that the device reduces the number of switching cycles of heating equipment, the costs of the owners for utilities are also reduced. At the same time, the equipment additionally ensures the safety of all boiler elements, which do not wear out so much.

The advantages of using a thermostat:

  • installation of a comfortable microclimate - you can select up to 7 modes;
  • savings when paying for gas (about 20%);
  • an increase in the operating time of all elements of the heating system, including the circulation pump;
  • prevents strong air dryness and overheating in the house;
  • reduction in the number of starts of boiler equipment.

Individually set temperature settings for the thermostat are especially relevant for families with children, when it is necessary to maintain a comfortable microclimate at all times, as well as for those people who are especially sensitive to temperature extremes.

In this video, you will learn how the wireless thermostat works:

Varieties and principle of work

There are many varieties of boiler room thermostats, from expensive wireless devices to mechanical devices. Even simple electronic equipment pays for itself quickly. But the benefits of its use are very significant, and this has long been noticed by many owners of gas boilers.

Thermostats can be operated using:

  • connections to the electronic board of the boiler;
  • built-in rechargeable battery;
  • electrical network.

Equipment can be remote, built-in, digital, analog, wireless and wired.

The cost will depend on the specific model, which varies in the range of 200-15000 r. The most expensive are wireless devices that control the operation of the boiler using a radio signal. The cheapest are mechanical models that are connected using a special cable.


The thermostat can be operated, for example, on battery power

The most advanced are wireless devices with a digital display that displays the current room temperature and other parameters. Modern thermostats for a gas heating boiler have the ability to select up to 7 temperature setting modes.

Electromechanical, electrical, mechanical

Mechanical equipment is the most affordable device. They are connected to the boiler using a two-core cable and fixed to the wall at a distance of 50 cm from window or door openings, as well as away from direct sunlight.

Main characteristics:

  • measurement error - 1 °;
  • the measurement range varies between 3 ° and 45 °;
  • approximate power 4 kW;
  • gas-filled siphon.

The thermostat is connected to the boiler with two copper cables, through which the necessary commands are transmitted. The required temperature parameters are set by turning the knob.

Electromechanical models are the most modern devices that, at the same time, can provide temperature control with an error of no more than 1%. Inside this equipment there is a thermal relay, signal and temperature sensors. The cost of electronic devices is higher compared to mechanical ones.

Main characteristics:

  • convenient digital screen;
  • the measurement range is within 7-30 °;
  • determination of temperature with an accuracy of 0.2 °;
  • humidity control;
  • multicore cable;
  • installed LED for backlighting.

These devices have a very small error.

Electrical devices can be programmed for a day or a week, set up to 7 time intervals with a certain temperature, there is also a "vacation" mode and a sleep mode. The boiler operation is monitored using an LCD screen. There is a relay inside the electrical appliances, it is responsible for turning on and off the boiler equipment. This equipment is slightly more expensive than mechanical devices, but cheaper than electromechanical ones.

There are devices equipped with a capillary tube, as well as with a group of contacts and a bimetallic plate. In the latter version, the boiler is turned on due to the fact that the plate, warming up to a predetermined temperature, bends and opens the contacts. In the first variant, the signal is transmitted due to the expansion of the water in the tube during warming up.

Main factors:

  • stainless siphon;
  • the measurement range varies from 7 ° to 45 °;
  • automatic shutdown of heating;
  • convenient screen for temperature programming.

The control accuracy in these devices is not very high.

Remote controlled and wired

There is a special wire in the device for transmitting the command. These are affordable devices that are not often found in stores today.

These thermostats can be manually programmed to the desired temperature. There are also expensive wired devices that regulate the coolant in the heating circuit due to the temperature characteristics in the room.


In devices with remote control, there is a remote control that transmits a signal with a distance of up to 50 m.

The equipment memory is non-volatile. In the event of a power outage, all data is saved. In some cases, one remote control can run several devices at the same time. Connection of a GSM module or a control system via Wi-Fi can only be done for wireless thermostats.

Programmable and regular

Conventional devices have an on / off key and a rotating dial for manual temperature programming. This is the simplest equipment and is very cheap. As a rule, it is purchased for a summer residence or other housing, in which strict control over the heating system is rarely needed.

Programmable devices make it possible to set the required temperature values. They have a programming function (up to approximately 7 temperature switching functions per day). You can set one daily program for weekdays and another for weekends or individually for all days of the week. Optimal programming of the sensor lowers the temperature in the room when there are no occupants in the house, and also, for example, at night.

Savings with firmware are much higher than with a simple thermostat (up to 45%). Expensive devices may have an EBus communication bus and other functions. EBus makes it possible to exchange information between the sensor and the heating boiler and, thus, change the power according to the signal from the thermostat, taking into account the programmed temperature in the house.

Hydrostatic devices are not ordinary devices, but equipment with the ability to control the level of humidity in the house. Humidity can be monitored and the decrease or increase function can be selected.

Indoor and outdoor

There are weather-dependent thermostats that control the temperature in the room, taking into account the weather conditions outside. If it is cold outside, the boiler will independently increase fuel consumption, and during warming, heating will decrease.

You can control this device using your phone or other gadget. The price of weather-dependent devices starts from 7 thousand rubles. Thermostats are more economical and are quite in demand today.


Outdoor equipment is protected from frost. The thermostats can have modes such as "vacation" or "meeting", that is, it is possible to meet the owner after the lack of the required temperature or reduce energy consumption to a minimum during the absence of the tenants' home.

Room equipment is installed indoors and works thanks to air circulation, and not heating the coolant in the boiler. The device is equipped with a digital display and can be programmed. One device is installed for the whole house and it functions with the help of a bimetallic spring.

This equipment can be installed only at a distance of 1.2 m from floor level and away from a constant source of draft. The device will turn off the boiler if the room temperature reaches the preset threshold and turn it on if the temperature drops by several degrees.

Features of choice

To choose the right device, you need to decide how often the thermostat will be used. If regular use is expected, then wireless devices with different temperature functions are better off.


When choosing this model, one should pay attention to the presence of a control mode using a smartphone connected to the “smart home” system.

Frequent use of the thermostat is possible if a double-circuit boiler is installed and you heat bathing water daily.

Important: frequent switching on and off can provoke not only unnecessary costs, but also equipment wear. After purchasing a thermostat, manual boiler control will become a thing of the past.

If the boiler turns on and off rarely, then the simplest devices with a small number of functions and modes are quite enough. All the time, attention should be paid to what kind of savings will come out in the future due to the installation of the thermostat, as well as during its operation. Ease of management is also important. For example, using the remote control, you can set all the necessary parameters without getting up from the chair.

Optimal solution

The thermostat is a rather convenient thing in any household. With the help of this device, you can reduce the cost of paying for electricity or gas, as well as increase the operating time of an expensive boiler. An increase in temperature above the threshold of + 22 ° C increases fuel consumption by almost 15%. The thermostat will make it possible to reduce costs by 30% in winter, and at the same time it will be able to maintain a comfortable temperature regime in the room.

Weather-sensitive devices are the most expensive, but if you live in a cold area this is the best way to intelligently heat your rooms without overpaying. By the way, the savings from using these devices are higher than from conventional ones. According to users, thermostats quickly pay off thanks to savings on utility bills.
The most popular thermostats:

  • "Monolith";
  • Overtrop;
  • Salus. Protherm;
  • Vaillant;
  • Bosch.


When choosing a model, you need to pay attention to ease of operation, installation method, functionality and other important technical characteristics.

Installation of room thermostats will enable you to organize a comfortable microclimate and ease of use of boiler equipment, while reducing gas consumption. But it must be remembered that significant savings can be obtained only after preventing heat losses in the house. Otherwise, the gas consumption will only increase, since the thermostat will not stop the boiler until the required room temperature is reached.

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When a heating system is installed in the house using a gas boiler, it is necessary to manually adjust the optimum room temperature. Moreover, this heating option is very sensitive to weather changes. As soon as it gets colder outside, you have to increase the temperature of the coolant. Even expensive models with a high level of automation require these steps. To save consumers from such work, manufacturers have released a thermostat for a heating boiler (temperature controller).

Smart device options

Thermostat for a heating boiler (temperature controller): how it works

The installed heating system heats up the room to the set temperature, regardless of the level of heat or cold inside. At the same time, a person feels well the daily changes in the weather, if he does not change the mode manually.

To eliminate this problem in a small house without a second floor, it is enough to mount one thermostat in the walk-through room.

Note! It is necessary to correctly connect and install the device so that it works correctly and sends a signal to the boiler.

The design of a simple device includes an element with high sensitivity (an actuator) and a contact group with a regulator. In appearance, it is a closed bellows, inside which a gas mixture is usually placed, sometimes a liquid. This filler reacts to temperature changes and moves the stem to close the contacts when the temperature rises, and when the temperature decreases, the opposite action occurs.

The thermostat performs the task of turning on and off the heating system when the set temperature is reached autonomously, without human intervention. A simple circuit includes two contacts, the wires of which are routed to the boiler and connected to the valve.


When the device is turned on, the last element is open. When a short circuit occurs, the fuel supply to the burner is cut off and the flame is stopped. In the reverse process, ignition occurs from the igniter.

Related article:

Gas wall-mounted double-circuit boiler with a closed combustion chamber. What are its features, advantages and disadvantages, how to choose and install it correctly - read this review.

Varieties of home temperature sensors for a heating boiler

Thermostats for a heating boiler (temperature controllers) are of several varieties:

  • Wired. Correct wiring is the key to correct operation. This is necessary for uninterrupted communication between the equipment and the boiler.

  • Wireless. With the help of a radio signal, information is provided about a change in the temperature regime in the apartment. The device consists of two blocks, one of whichmounted in the room, the other on the boiler itself. The controller unit has an LCD display and a keyboard.


Let's analyze each option in more detail, with an approximate cost and an overview of several models.

Mechanical (wired) thermostat

The thermostat for a mechanical heating boiler has its own characteristics, the price of the model is different as well as the characteristics. Such a device must be preset in order to achieve the optimal room temperature. This is a difficult process, therefore it is better to consult a specialist.

The complete set of any model includes two parts: a thermal head and a valve. The operation of the device is influenced by:

  • frequent airing;
  • bright sun rays that come through the windows;
  • a sharp change in the weather.

Installation must be carried out only in a horizontal position, while choosing a place where there are no objects blocking the device and direct sunlight. Modern models provide for small dimensions that can be installed in a small niche.

The installation itself will not take long. If you turn off the heating, then next you need to turn the knob of the thermostat. This will protect the device from sediment build-up.

Here is an example of two popular mechanical thermostat models:

Review of Mikhail, Balabanovo:“I got it two years ago, installed it myself, not far from the boiler. It works properly, it is always warm in the house. "
Feedback from Dmitry, Tver:“I've heard a lot of good reviews and bought it a month ago. There were no problems with installation and configuration. So far, everything suits me. "

Mechanical room thermostats for a gas boiler are popular, have a low cost and can be independently installed.

Important! Correctly adjust the mechanical device before use, otherwise there will be no result. Better to call a specialist.

Remote equipment options

The thermostat for the heating boiler (temperature controller) can be operated remotely.

There are several types of such a device:

  • simple;
  • program rooms.

The first option is designed to maintain the set temperature in the room. And when installing the second option, the owner of the premises receives the following benefits:

  • remote control;
  • you can set the mode depending on the time of day;
  • the speed of changing the regime;
  • you can schedule changes for the week;
  • quick boiler response to changes;
  • low fuel consumption;
  • the battery is in use.

Remote programmed temperature sensors (room) for gas boilers are designed for people who love the maximum level of comfort and new technology. Here are some popular options for such a device:

Model nameSpecificationsPrice in rub.
Bosch TRZ 12-2Device typeElectronic9800
Mounting typeOverhead
Temperature regime+5 to +39 ⁰С
Block dimensions91 * 113 * 33mm
TimerWeekly
Feedback from Denis, Moscow:“I also have a Bosch gas boiler, so I bought this thermostat. It has been working for six months without problems, planning for the week is maintained regularly. "
Feedback from Ekaterina, Bryansk:“I suffered for a long time with manual regulation of the boiler. Then I installed myself Siemens REV13 (hired a specialist). For a year now I have been managing the temperature simply and quickly. "

Software temperature sensors for a heating boiler are different in cost and function. At the same time, all models do an excellent job of controlling the temperature in the room, and the convenience of adjustment allows you to add warmth in the house without getting out of bed.

Automation is used for ease of management, economical consumption of energy resources. To properly use the thermostat for (temperature controller) it is necessary to study modern engineering solutions. An overview of the current market situation will be useful. It is also necessary to evaluate the possibility of performing installation operations on your own, without resorting to expensive professional services.

Read in the article

Why do you need a thermostat for a heating boiler (temperature controller) in rooms

When developing new heating equipment, great attention is paid to the efficiency of the use of energy resources:

  • create in such a way that the formation of useful infrared radiation occurs with maximum efficiency.
  • In gas boilers, continuous flame control systems are installed that optimize the combustion process.
  • When used, they create chambers of complex shape on the way of the removal of combustion products. Here the temperature rises further.

But the rational use of electricity and fuel will be useless if the optimal consumption of the generated heat is not ensured. To solve such a problem, certain parameters of individual components are needed.



To fulfill the last condition, you will need a heating boiler (temperature controller). With the correct application of this technique, you can get the following advantages at your disposal:

  • Maintaining the set temperature in automatic mode, without the need for careful control.
  • Saving energy resources (money) up to 30% and more.
  • Possibility of remote control, quick transition to special modes.
  • Extending the service life of boilers due to careful operation.

For your information! Optimization of equipment operation using a thermal sensor for a heating boiler will extend the autonomous operation time when the mains power is turned off. The equipment will work from the built-in battery for a long time, which will increase the time for calling specialists, eliminating an emergency.

Functions of the temperature sensor for the heating boiler: regulation of the heating medium temperature

The modern boiler control system consists of several parts:

  • In this version, the temperature sensors in the rooms and outside air are directly connected to.
  • Power is provided by the AC adapter. Built-in rechargeable batteries ensure serviceability when 220V is disconnected.
  • A GSM unit is installed here for remote control. With its help, the user will receive real-time data on the indoor temperature. If desired, it turns on the desired mode by giving a control signal from a smartphone, tablet. These functions are performed under the control of specialized software.
  • The boiler is commanded via a wired connection. They include heating and pump. This is more economical than the built-in thermostat discussed above. The air temperature drops more slowly than the coolant temperature, therefore the burner ignition frequency is reduced. In such conditions, the service life of the equipment is extended.

Important! Boilers compatible with room thermostats must have special “Room Thermostat” input jacks on the control board. The respective capabilities are indicated in the manufacturer's official instructions.

The algorithm for the operation of such equipment in the complex deserves high marks. If the sun came out, the temperature outside has risen, the boiler will not turn on. It became colder in the room after airing - no need to readjust the heating equipment and then set the regulators to their normal position. The required actions will be performed automatically. In literally one season, you can recoup your investment. But in any case, a more thorough study of the parameters of equipment and models on the market will be useful.


In order to select the right fittings, consideration must be given to the use of outdoor temperature sensors. In some models, they are connected directly to the standard electronic control board. With their help, the parameters of inertial processes are optimized.

So if the user has set an excessively high temperature, and it has become warmer outside, they will continue heating even if the boiler is turned off by the thermostat. If there are sensors outside the room, the required command will be given faster. The actual savings in the process of their active use are small. Therefore, these enhanced capabilities are valued in conjunction with some added value.


Varieties of technology and selection criteria

For heating boilers (temperature controllers) are equipped with various hardware and software blocks. Additional functionality and technical features of modern models are listed below:

  • Temperature control sensitivity in 0.2-0.3 ° C steps.
  • Setting of individual time schedules for switching on for each day of the week.
  • Quick selection of a standard program and creation of algorithms, taking into account personal preferences.
  • The use of safe ones, in which the formation of sparks during switching is excluded.
  • Maintaining performance in a wide range of temperatures and.

Some important details are shown in the figures.





How to purchase a temperature sensor for a heating boiler: market overview

Drawing Brand / Model Adjustment range, ° C Minimum step of operation, ° C price, rub. Comments (1)

Salus / Controls RT1005-30 0,5 880-980 The simplest model, no screen. Suitable for adjustment.
Thermoval / RTE-E-35025-30 0,5 1050-1200 Protection against external influences according to the IP30 standard.

Thermix / РТ001Н16М10-40 - 1900-2050 Mechanical control.

Salus / Controls T1057-30 0,4 2050-2200 Programmable regulator. Monochrome display with.

Poer / PTC107-32 0,5 2100-2250 The ability to connect to the Internet using an additional set of equipment. Wireless connection between receiver and thermostat. More than 20 programs.

Salus Controls 091FL5-30 0,5 2180-2300 User programs, frost protection system.

Grand Meyer / PST-25-35 - 3400-3600 Concealed installation, programmable regulator.

Warmehaus / Touchscreen5-35 - 7300-7950 Touchscreen monochrome screen.
Salus / Controls iT5005-35 1 10800-11300 Remote control, touch screen, internet connection.

How to connect a thermostat to a boiler

It is more convenient to work with temperature controllers for heating boilers that support a wireless connection. For example, here is the algorithm for installing Salus / Controls iT500:

  • The controller unit of such a device can be placed in any room at a distance of up to 30-50 meters from the receiver. It is desirable to prevent unwanted external influences on the thermostat. It is fixed on the interior walls, away from, not in direct sunlight. But it is not recommended to install it in niches or other places where the natural circulation of air flows is difficult.
  • A smaller distance will be obtained if there are thick reinforced concrete walls or other obstacles to the propagation of radio waves on the corresponding line. Signals are transmitted at a carrier frequency of 868 MHz.
  • If several kits are mounted on site, you can change the encoding. For this, a DIP switch is used. Let's admit a choice of 32 options. The distance between the receiving units is kept more than 90 cm in order to exclude false alarms.
  • The Salus / Controls iT500 is designed in a safe design that can be used next to gas equipment.

The previous operations are performed with the 220 V power off.


General conclusion

The use of a wireless thermostat for a gas boiler simplifies the operation of heating equipment. The simplest models are inexpensive. But their installation is associated with the laying of wired communications. Therefore, the total costs can increase significantly compared to the preliminary plan. More complex sets use the radio band to transmit control and pilot signals. The installation of such products is not difficult to carry out on your own. Their high cost is due to their advanced functionality.