Thermostat for gas boilers: why you need it and how to choose. Room thermostat for gas heating boiler

Union of Soviet

Socialist

State Committee

USSR for inventions and discoveries (53) UDC 621 646 (088.8) Published on 07.11.82 Bulletin No. 41

V. M. Murashko, V. I. Savenko, A. A. Chizhov and A. I. Shabanov (71) Applicant (54) THERMAL VALVE

The invention relates to pneumohydraulic engineering and can be used for remote opening and closing of hydraulic and gas lines.

Known thermal valve, in the body of which there is a stem associated with a shut-off body, and a heater, and the body and stem are made of materials with different coefficients of linear expansion (!).

The disadvantages of this device are low reliability and speed due to the fact that the closing time of the valve cannot be adjusted, the accuracy and constancy of the closing time depends on the constancy of external and internal factors, in addition, there is a risk of spontaneous opening of the valve during accidental uniform heating of the valve.

Known thermal valve containing a housing with inlet and outlet nozzles, which is loaded with an elastic element of the locking body, kinematically connected with a stem equipped with heating element (2) .

EN „„1

The disadvantages of the known valve are low reliability and performance.

The purpose of the invention is to increase the reliability and speed of the valve.

This goal is achieved by the fact that the body is equipped with an additional heating element, and between the rod and the body is placed a heat shield. The body and stem are made of materials with the same coefficient of linear expansion. The drawing shows a thermal valve, section.

In the body 1 there is a locking element 3 loaded with an elastic element 2, and a rod 4 equipped with a heating element 5. An additional heating element 6 is placed outside the body, and thermal insulation in the form of a heat shield 7 is installed between the rod 4 and the body 1.

The ingress of the working fluid into the gap between the rod and the body is prevented by the membrane 8. The temperature regime is provided by the radiator 9.

The thermal valve works as follows.

Claim

Compiled by I. Teravskaya

Tehred I. Veres Proofreader U. Ponomarenko

Circulation 990 Subscription

VNIIPI State Committee USSR for inventions and discoveries

113035, Moscow, Zh-” 35, Raushskaya emb., 4/5

Branch of PPP "Patent", Uzhhorod, st. Design, 4

Editor A. Vlasenko

Order 7668/24

When the heater 5 is turned on, the rod 4, heating up, expands and moves the shut-off body 3, the valve opens. The presence of a thermal screen 7 does not allow the case 1 to warm up and the heat is released through the radiator 9.

If it is necessary to close the valve, the heater 6 is turned on, which warms up the housing 1, the latter, in turn, expands, moves the stem, which, in turn, releases the shut-off body and the valve closes.

By increasing the body heater power, the valve close time can be reduced.

For a given power of the heaters and the flow area of ​​the valve (and, consequently, a given stroke), the speed of the valve is determined by the coefficients of thermal expansion of the body and stem. In this design, it is possible to manufacture both the body and the stem from materials with the highest possible thermal expansion coefficients independently of each other, thereby obtaining maximum speed.

This design of the thermal valve allows you to increase the reliability and speed of the valve.

Thermal valve containing a body with inlet and outlet nozzles, in which a shut-off element loaded with an elastic element is installed, kinematically connected to a stem equipped with a heating element, characterized in that, in order to increase reliability, the body is equipped with an additional heating element, and between the stem and the body is placed heat shield.

Sources of information taken into account in the examination

Similar patents:

The invention relates to gas valve, containing a body with inlet and outlet gas pipes, and this body contains an annular valve seat and a valve body located above it, and the valve body can fit snugly against the valve seat and is installed in the center of the membrane, while the annular edge of the membrane is fixed in the body, moreover, the side of the membrane that faces the valve seat is directly in communication with the gas inlet, and the side of the membrane that faces away from the valve seat is the boundary of the control chamber, which communicates with the gas inlet through the orifice, and there are means to allow gas to be released from control chamber in order to reduce the pressure to such a value that the valve body is raised above the valve seat, whereby the control chamber is connected to the outlet gas pipe, and these means contain a constant channel, coaxial with respect to the valve body, in connection with which the valve body ( 15), in essence, has a ring shape

The gate valve belongs to pipe fittings. Includes double acting piston actuator and actuator control system. The control system is installed on the upper flange of the drive housing 10, contains drive four-way plunger valves and connecting channels 13, made in the flanges and in the side walls of the drive piston cylinder. The valves in the closed position communicate through the gap in the plunger pair the working cavities of the drive piston cylinder with the internal cavity of the valve body 1 and between themselves, and in the open position the valves communicate through the connecting channels 13 one of the working cavities of the drive piston cylinder with the internal cavity of the valve body 1, and the other - with a drainage pipeline 24. In the body 14 of the valve, through channels are made with access to the connecting channels 13 of the drive control system, the saddle 21 and the guide plunger sleeve 18 with windows 19. The drive locking element 27 forms with the saddle 21 a shutter at the inlet to the drainage pipeline 24 A hollow plunger with windows 30 and an end cap-pusher 31 is rigidly connected to the drive locking element 27. The second plunger 32 is installed in the guide plunger sleeve 18 with an annular gap and is elastically pressed against the pusher 31. A fixing sleeve 34 is installed on the rod 8. In the cover body 11 piston actuator cylinder installed spring-loaded to the locking sleeve 34 latch 35. Stem 8 relatively external environment closed with a lid-cap 41. A bore is made in the stem 8, in which an intermediate stem 39 is installed resiliently, with the possibility of free running Hc permanent magnet 40. Outside, on the cover-cap 41, reed elements 42 and 43 are installed. Nm - magnet stroke required to close the contacts of reed elements 42 and 43. 3 c.p. f-ly, 6 ill.

In order to create maximum comfortable conditions indoors for the heating period, the heating system must be balanced and have the possibility of constant regulation. Modern gas boilers, unlike their predecessors, provide the ability to change power over a wide range without a significant loss in efficiency.

Due to modulation, some models allow you to change the power from 6 to 24 kW, this creates the prerequisites for creating the necessary thermal regime in residential areas and obtain significant savings on fuel consumption. By itself, the heating installation cannot perform control functions - its task is to provide heating of the coolant, but the frequency of boiler starts and power can be adjusted using external devices management. One of these devices is just a thermostat, which will be discussed in this article.

Why do I need a thermostat for a gas heating boiler?

Any heating system is closed loop filled with water or antifreeze. The boiler heats up the coolant, circulation pump pumps it through a system of pipes and radiators, heating radiators transfer heat to the final consumer - heating the air in the room. In a perfectly balanced system, the boiler must operate continuously at maximum efficiency so that the amount of heat generated by the heating installation is neither more nor less than what is required at a particular time.

For this you need:

regulate the temperature of the coolant

receive data on the current temperature in the heated room

The temperature of the heat carrier is regulated depending on the temperature outside. As a rule, this device is called an outdoor temperature sensor. That is, with a connected sensor, the boiler will independently select the desired coolant temperature. This is very convenient, because sometimes the temperature outside can vary widely over short intervals time. Mostly these changes take place at night and the owner gas boiler, not equipped with such automation, is forced to constantly run and “twist” these settings. A particular inconvenience occurs when the boiler is located in a separate boiler room or basement.

It remains to find out what the current temperature is in the room to make a decision to turn on the boiler and constantly monitor the further change in this temperature in order to turn off the boiler when the desired value is reached. This is what is needed thermostat for gas heating boiler! It gives a signal to start and stop the boiler, depending on the set temperature in the room.

Room thermostat and the outdoor temperature sensor different devices with different purposes, but are an integral part of one system.

It must also be understood that best result can only be achieved if the heating system is properly designed from the outset and the rooms are properly insulated. After all, if the house has low energy efficiency, frequent switching on of the gas boiler cannot be avoided and the system will have a strong inertia.

Frequent starts of the gas boiler inevitably lead to a decrease in the resource of the actuators: fan, pump, electronic control board. Some relays used on the board have a passport reserve of 100 thousand cycles. If, for example, the boiler is turned on every ten minutes, then the passport number of cycles will be reached in about 3 years.

What is the working principle of a gas boiler thermostat?

In modern heating installations, all processes are controlled by electronic board. In most cases, there is a place on it for connecting a thermostat - these are two contacts connected by a jumper. The principle of operation is extremely simple: the contacts are closed - the boiler turns on, open - it does not turn on. The jumper in the standard supply of the boiler constantly closes the contacts, and the cycle of operation occurs according to its own logic set in the settings (for example, by a timer).

In the case when a thermostat is connected instead of a jumper, the contacts are closed or opened according to the logic already set by the thermostat. It turns out a switch that, either mechanically or electronically, closes and opens contacts instead of a jumper.

If the temperature of the room in which the thermostat is installed is lower than the set one, the switch will close and the boiler will start, as soon as the temperature rises to the desired one, the contacts will open and the boiler will turn off the burner. Schematically, the principle can be seen in the figure.

Depending on how the room temperature is measured, thermostats can be mechanical or electronic. The main difference is the accuracy of the readings themselves and the possibility of additional settings. Electronic room thermostats allow a more flexible approach to thermal control and have the functions of programming operating modes in different time day or on different days of the week.

For example, lowering the temperature in some rooms during the day, even by a few degrees, can provide tangible savings in gas consumption over a long period of time.

What are thermostats?

According to the method of communication with the heater, thermostats can be wired and wireless.

In the latter, the module with a temperature sensor is located directly in the room in which the adjustment is carried out, and the module for closing the contacts is already installed next to the boiler and receives signals via a radio channel.

Proven in practice: the use of regulation allows you to get significant - up to 30% savings in gas consumption.

Conventional thermostats for a gas heating boiler, which were mentioned above, allow you to achieve a certain comfort and savings, but the maximum can be obtained only with the use of special temperature control schemes in each room.

This is only possible with the use central block controls and regulators in each room.

With this regulation, the controller makes a decision to switch on based on the set temperature parameters in each room, and to maintain the temperature in the rooms, special controllable valves on the radiators are used. The use of such systems allows for full-fledged climate control in the house and gives maximum savings energy carrier, but their cost is of course much higher.

Also, the user gets the opportunity to remotely control the boiler via GSM communication or via a smartphone, the possibility of programming and informing about emergency situations. This is especially true for owners of country houses. Timely received information about the accident can prevent unpleasant consequences.

How is the thermostat installed?

In principle, installing a thermostat is not difficult, but if you are not sure that you have the necessary skills, it is better to use the services of a specialist.

So, the first thing to do is open the instructions (operating manual) for the gas boiler and find the layout of the connectors on the board. On the wiring diagram, the location of the place for connecting the thermostat is clearly marked and it remains only to remove the top cover of the boiler and the protective cover of the control board. There are usually no other jumpers on the board itself, and the thermostat connection point is indicated by the letters “Ta”.

Before carrying out work, it is imperative to make sure that the gas boiler is de-energized and there is no voltage on the terminals! Some Internet sources say that the signal voltage for connecting the thermostat on the boiler side is not dangerous 24 Volts - ALWAYS check it !!! For example, in BAXI boilers there are exactly 220 Volts !!!

Further, according to the instructions for the thermostat, it is necessary to connect it to the boiler board instead of a jumper and assemble everything in the reverse order. It is better to connect with an insulated copper cable with a cross section of at least 0.5 mm2.

Some thermostats support the connection of both heating and heating installations and there may be several outputs. Those. there will be a fundamental difference in the operation of the switch: what state will be in the initial position - normally closed or normally open. For heating installations, the connection must be made to a normally open initial state. When the temperature drops, the contacts will close and a signal will be sent to turn on the boiler (as an example, see the connection diagram for the ZONT H-1B GSM thermostat).

As a rule, manufacturers of boiler equipment offer thermostats as additional accessories, in principle, at fairly reasonable prices. In principle, these devices do nothing supernatural, therefore, when choosing, first of all, you should pay attention to the price of the device and the presence in it of really useful features such as the ability to program and set temperature hysteresis and accuracy. Electronic models will be preferable, as they have more precise adjustment. It is very important to choose the right place to install the thermostat. It should be located in a neutral place with respect to heat sources, preferably where it will not be exposed to sunlight.

It is also wrong to place it close to heating radiators - in this case it will heat up quickly and stop the boiler ahead of time. The location for the thermostat should be chosen to best match the comfort temperature for the occupants. Recommendations for installing a room thermostat can be found in the operating instructions.

Buying a Salus thermostat means significantly increasing the comfort in your home, as well as saving up to 30 percent of the fuel consumed.
Forget about endless manual adjustments of the heating boiler - entrust this business to reliable and modern electronic thermostats!

Temperature regulators (thermostats) Salus designed to maintain the temperature in heating, ventilation and air conditioning systems. The company's products are used in "artificial climate" systems, both at home and in industrial environment.
The hallmark of this English company is the development and production of ready-made solutions in the field of control of heating systems and air conditioning systems.
The devices manufactured by Salus Controls are used as: thermostats for heating boilers, underfloor heating systems, radiators, fan coil units, and also as thermostats for controlling circulation pumps.
programmers often called thermostats with programming functions, although this is not entirely true, because. all Salus thermostats have a built-in device of this type with certain functionality depending on specific model: programming energy consumption, water supply, control of various sensors, etc.
The design of thermostats is based on locking and regulating mechanisms, which receive commands from the control unit, which, in turn, receives data from various sensors: thermo, pressure, humidity, temperature, etc. Based on the data from these sensors, control is carried out heating boilers, servo drives, valves, etc. Electronic thermostats are usually equipped with built-in programmers, with which you can set the climatic parameters that are comfortable for you. Using a heating control system helps save big number energy resources.
It is recommended to install Salus thermostats in the same room as the heaters, at a height of about 1.5 m. unnecessary problems, because most of the devices are easy to install and have a friendly interface. Depending on the configuration, SALUS Controls thermostats have additional features: zone climate control, wireless control (including via the Internet), weekly programming, etc.
Salus temperature controllers can be operated in a wide temperature range from 0°C to +60°C, the main advantage of the company's products is precise air temperature control - up to 0.5°C.

About SALUS Controls:

Salus Controls is a technology and distribution firm dedicated to developing thermal and renewable energy management solutions.
It is part of Computime Group Limited of Hong Kong, renowned for its R&D and manufacturing capabilities in the field of consumer electronics control technology.
The company occupies a specific niche in the field of automation of heating and air conditioning systems, in the sector of "smart" control automation. Computime Group Limited has been serving clients in commercial, industrial and consumer markets in Asia, North America and Europe since 1974. It is a supplier of products (thermostats and thermostats for heating) for Viessmann and Buderus. Main industrial enterprises, supplying products to Russia, are located in Poland and England.

Salus Controls in Russia:
Over the past few years, Salus products in Russia have gained great popularity. This is connected not only with high quality Salus products and ease of operation, but also with competent technical solutions, laid down by Western engineers, low price and a large variety of proposed models. The main portfolio of Salus in Russia is represented by thermostats for heating boilers, thermostats for heating radiators, automation for underfloor heating control and internet thermostats for heating systems.

Briefly about the popular models of SALUS Controls thermostats

"Know-how" 2014: internet thermostat Salus IT 500 .
This model allows you to control the temperature in your home using your phone (Iphone, Android phone models), tablet or computer from any city and even country, you only need Internet access and a pre-installed program on your smartphone.
The Salus IT500 thermostat can control not only the operation of the boiler, regulating the temperature, for example, on the 1st floor of the cottage, but also the temperature in the second heating circuit - on the 2nd floor, or the temperature of hot water in the bathroom. This is a modern high-tech style touch panel thermostat that will harmoniously fit into any interior, plus a wireless receiver that transmits commands from the Internet thermostat to the heating boiler.
A Wi-Fi router must be installed in the house, and a special control program is installed on the phone or tablet. All of the above devices and software solutions are included in the delivery, with the exception of the additional Salus IT300 sensor, which allows you to expand the capabilities of the thermostat to control 2 heating circuits. After installing the IT500 thermostat and the application, you can remotely control the heating boiler, raise or lower the temperature in the house, turn on or off various heating programs, prepare hot water for your arrival, remotely monitor the operation of the heating system in your house and much more.
And again, most importantly, real savings money spent on heating.

Some features of Salus IT 500:

• You can control the remote control of your home heating and hot water system via the Internet!
• Special software for PC and smartphone makes them a convenient tool for managing from anywhere where there is access to the global Internet
• The wireless control of the boiler (868 Hz) makes the connection extremely simple without the use of electrical wiring.
• Possibility of using 3 configuration options:
  a) Heating only
  b) Heating in two zones (additionally need iT 300 remote temperature sensor for the second zone)
  c) Heating + hot water control (DHW)

How does Salus iT500 work?

1. A receiver is connected to the boiler, which regulates its operation.
2. The receiver and the thermostat located in the room are connected when WiFi assistance connections.
3. The thermostat analyzes the current temperature in the house and makes a decision to control the boiler in accordance with the selected program and schedule.
4. The temperature data is sent to the SALUS server in real time (99.99% uptime) so you are always in control and can change the temperature as you wish. With the help of the program installed in your smartphone, you can always control or change the heating modes in the house from anywhere in the world.

Standard thermostat series Salus R300

Simple daily electronic thermostat with LCD display. Allows you to regulate the temperature in the room by controlling the operation of the boiler, pump or heating radiators. Works on the "ON-OFF" principle and fits most boiler models on the Russian market.
The Salus RT 300 thermostat has the functions of "weekend", "switching on one hour before", an automatic light saving regulator and an anti-freeze function. Modern and stylish design certainly will not spoil your interior.

Detailed information about other models of Salus thermostats, as well as their prices, can be found

Automation in the heating system allows you to more accurately control the temperature in heated rooms and save on fuel. By installing a thermostat for a heating boiler, the owner of the cottage increases the efficiency of boiler equipment by 20-30% and greatly simplifies its maintenance.

We will talk about the types of thermostats used in practice, about the rules for their location and connection features. The article we have proposed describes in detail the options and schemes for connecting devices. Taking into account our advice, you will be able to correctly select the device and, if desired, install it.

A conventional heating system with water as the heat carrier consists of heating equipment or a connection to centralized network, internal wiring pipes and radiators.

In order to regulate the volumes of heat coming from it into the rooms, you either have to constantly monitor the boiler, or regularly close / open the valves on the batteries.

At the same time, the inertia of such a system does not allow maintaining the desired temperature throughout the day at the set level. If more firewood is added to the stove or gas is supplied to the boiler, then the coolant in the pipes will heat up more, while it will also give off more heat through the radiators.

At low temperatures outside the window, this is good. But with a sharp warming on the street in the house, the heat becomes unbearable. The fuel is already in the furnace, and the water has already warmed up, there is no way to get rid of the heat. Plus the boiler is still working.

Without a thermostat in the system, you have to turn it off manually. You can, of course, open the windows for ventilation and release the heat, but then the fuel bills for sure will ruin. The conclusion suggests itself: a thermostat for heating simplifies living, makes it as comfortable as possible.

A thermostat (thermostat) is a device for monitoring the temperature in a heated room and increasing / decreasing the heat supply to it

The thermostat for the heating system consists of:

• temperature-sensitive sensor (element);
• tuning block;
• control module;
• electromagnetic relay or mechanical valve.

In the most simple models the control block is missing. Everything happens due to pure mechanics and changes in the physical properties of the temperature-sensitive element.

These thermostats do not need power. In terms of efficiency and accuracy of system adjustment, they are inferior to electronic devices, but energy-independent. In case of problems with the voltage in the network, they definitely will not stop working.

The principle of operation of the thermostat is as follows:

1. The desired temperature is set using the control unit.
2. When the required parameters are reached, the sensor is triggered, which leads to the shutdown of the boiler or the closing of the shut-off valve in the heating pipes.
3. After the air temperature in the room drops, the boiler equipment or heaters are turned on again.

Module electronic control allows you to set not one temperature indicator, but several at once for each time of day separately. Plus, in the presence of such a unit, it is possible to install an additional temperature sensor on the street and link the functioning of the thermostat to data from it.

Depending on the type of device, the thermostat is connected directly to the boiler to regulate its operation or at the inlet to the radiator to control the volume of coolant supply

The simplest thermostat is shut-off valves with a temperature sensor, standing on a pipe near the battery. When the desired temperature is reached, it closes and reduces the flow of the coolant. And on cooling room air it opens again, as a result of which the volumes of incoming heat increase.

More complex and advanced models suggest the presence wireless sensors and control units. All communication between separate elements takes place over the radio. Wires in this case are not laid, which has a positive effect on the aesthetic side of the placement of such thermostats in the room.

Types of thermostats for boilers

The main difference between thermostats is the different types of temperature-sensitive sensors. Some are installed on the heating pipe, others inside it, and others are mounted on the wall. Some are designed to measure the air temperature, and the second - the coolant.

The choice of thermostat model depends on:

• boiler type;
• wiring diagrams of the heating system;
• availability of free space;
• the required functionality.

Many modern boilers are pre-designed for connecting thermostats to them. Moreover, the manufacturer of boiler equipment immediately prescribes all the nuances of this installation in the data sheet.

If an electronic model of the thermostat is selected, then it is best to give preference to the most efficient one - the one recommended by the boiler developer

Ideally, the thermostat should regulate the operation of the heating device itself, that is, the supply of fuel to it. This is the most efficient connection scheme in terms of fuel economy. In this case, the energy carrier will be burned exactly as much as the required heat.

But such a thermostat can only be installed on or. If , then adjust room temperature a thermostat with a mechanical valve, which is already mounted on the pipe, will help.

Battery-mounted regulators are designed to shut off the water supply when too high temperature in the room or near the coolant. In this case, the boiler stops working a little later, when its own temperature sensor is triggered inside, which prevents the equipment from overheating.

Group #1: Mechanical

The operation of a mechanical temperature sensor is based on the change in the characteristics of the material when its temperature changes. This is an easy-to-execute, budgetary, quite efficient and completely independent of the power supply option. It is designed to be installed on pipes for flow regulation.

Classic example mechanical thermostat– a device with a needle valve (lock) and a thermal head-bellows

As a substance that reacts to changes in temperature in mechanical thermostats are used:

• liquid.

When the liquid is heated, the gases expand, which leads to their pressure on the check valve stem. When the temperature drops, they shrink, the lock springs back, and the heated water again flows through the pipes into the radiators.

It is characterized by low sensitivity and large adjustment error. They only work when the temperature rises by 2 or more degrees. Plus, over time, the bellows filler loses its characteristics, the numbers on the installation knob of the required temperature parameters and the real degrees begin to diverge.

These thermostats have enough big sizes. The vast majority of them are designed to measure the temperature of the water in the batteries, and not the air in the room. It is often difficult to accurately adjust them the way the owner of the house wants.

Group #2: Electromechanical

These thermostats operate on principles similar to purely mechanical analogues. Only a metal plate is used here as a temperature-sensitive element.

When heated, it bends and closes the contact, and when cooled, it returns to its original position and opens the circuit. And already through this circuit, a signal is sent to the burner control unit.

The electromechanical thermostat requires power supply, it controls the valves or burners in the boiler that regulate the flow of coolant by means of electrical signals

Another version of the electromechanical thermostat is a device with a sensor in the form of two plates made of different metals. In this case, the temperature-sensitive element is installed directly into the furnace of a solid fuel boiler.

At high temperatures, a potential difference arises between the plates, which affects the electromagnetic relay. Contacts in the latter either open or close. As a result, the air supply to the combustion chamber is turned on/off.

Group #3: electronic

This type of thermostats for hot water boilers belongs to the volatile category. Such devices have a remote temperature sensor that monitors the temperature in the room, and a full-fledged control unit with a display.

For electric boilers, such thermostats are a mandatory addition. Without them, electric heaters will work non-stop, heating the air or coolant too much.

Boilers and boilers powered by electricity are in the vast majority of cases equipped with thermostats at the factory

There are two main elements in the electronic thermostat:

1. Temperature sensor.
2. microcontroller.

The first measures the temperature, and the second controls it and gives signals to increase / decrease the supply of thermal energy to the room. The sensor can send an analog or digital signal to the controller. In the first case, the thermostat is similar in capabilities to the mechanical counterpart, only greatly exceeding it in the accuracy of measuring temperature indicators.

Digital temperature controllers are the pinnacle of the development of these devices. They allow you to adjust the heat supply according to a predetermined algorithm. Plus, you can connect to them much more sensors located both indoors and outdoors.

Many electronic thermostats have the ability remote control via infrared or cellular. This allows you to control the room temperature not only with the remote control in the room, but also from any point outside it.

For example, even leaving work, you can send a signal to heat the room air to comfortable parameters, and by the time you arrive, the house will delight you with comfort and warmth.

Electronic devices intended for automatic adjustment qualitative and quantitative characteristics of the coolant are a mandatory component. We recommend that you familiarize yourself with their device.

Principal connection diagrams

All ways to turn on the thermostat in the heating system are divided into three connection options:

1. directly to the boiler.
2. to the circulation pump.
3. On the pipe supplying the coolant to the radiator.

The first two schemes exclude deterioration bandwidth heating pipeline. No additional constipation is placed in it, the hydraulic resistance of the entire system does not change. The thermostat here controls the operation of only the pump or boiler, it “does not come into contact with water”.

When a thermostat is installed on a battery or a common pipe with several radiators, the hydraulic resistance, on the contrary, increases. Even in full open state the thermostat valve slightly slows down the movement of the coolant.

Ideally, the boiler piping project must be carried out immediately, taking into account all thermostatic and other devices.

Embedding thermostats in existing heating pipelines should only be a last resort, maximum efficiency from their use can be achieved only when they are included in the system at the design stage

If the water heating system in the house is made according to, then it is better to immediately refuse the third option. When the temperature sensor is triggered, the valve will immediately close the entire branch of radiators in several rooms, and then you can immediately forget about comfort in rooms far from the boiler.

Connect the thermostat to the radiator inlet through. So when triggered, it will redirect the coolant flow around the battery. In this case, the water will return uncooled back to the boiler. The latter will stop heating it, thereby reducing consumption gas fuel or electricity.

When installing a thermostatic air temperature sensor, certain rules must be followed, otherwise, under the influence of neighboring devices or objects, it will falsely work

The temperature sensor must be installed:

• in a place where direct sunlight does not fall;
• away from cold bridges, drafts and rising heat flows from radiators;
• so that it is not covered by decorative screens or curtains;
• at a height from the floor within 1.2–1.5 meters.

If the sensor is installed incorrectly, the thermostat will give false signals. This can lead to overheating of not only the air in the room, but also the coolant in the system. And in the second case, not for long and before problems with the boiler.

Conclusions and useful video on the topic

There should not be any particular difficulties with the installation of the thermostat. It only needs to be chosen correctly for a particular heating system. And the selected videos will definitely help you with this.

Video #1 Connecting a room thermostat to a gas boiler in all nuances:

Video #2 Overview of the wall thermostat:

Video #3 Technology for including a contact thermostat in a system with a circulation pump:

An addition to a heating boiler in the form of a thermostat is a great way to save on home heating, increase living comfort and reduce wear and tear on equipment heating the coolant. The money spent on thermostats pays off in one winter season.

In this case, you can choose as a simple mechanical option with manual control, and a more advanced device with a programmer.

Do you want to tell how the thermostatic boiler works in your country house? Do you have information that will be useful to site visitors? Please write comments, ask questions, publish photos on the topic of the article in the block below.

Heating your home is a vital part of it. Efficient Management this system helps not only to save money on heating, but also to extend the life of the building itself, heating equipment. In addition, it is always more pleasant to be in a room with a comfortable temperature. The thermostat of a gas boiler copes with these tasks, and wireless thermostat facilitates the management of the boiler in the house. Let's see what kind of device it is, how necessary it is and how to use it.

The device is a small device that is connected to a gas boiler using terminals and wires. When it comes to a wireless device, data is exchanged via radio waves. Wireless kit consists of two blocks, one of which is installed indoors. It has a temperature sensor and an interface through which the desired temperature is set. It is equipped with a liquid crystal display and a keypad. The second is attached to the boiler with terminals. The blocks are interconnected by a radio channel.

Based on this design, it becomes clear why a thermostat is needed: temperature control in the room through the function of turning on and off the gas boiler when the set temperature is reached.

For comparison: when a double-circuit gas boiler is installed in the house, the system is guided by the temperature of the water that circulates through it. As soon as it falls below the set level, the boiler turns on for heating. Therefore, if they change weather, you need to manually reset the indicators on the boiler. During the season, you have to resort to such manipulations more than once. This mode is inconvenient in that the boiler often starts only for short periods of time, usually for a couple of minutes every 5-10 minutes. But the circulation pump of the system works constantly. Accordingly, there is a large overspending of electricity. For example, a 24 kW double-circuit boiler consumes about 60-90 W / h, that is, about 43-65 kW per month. Apart from big expense energy, there is a high depreciation of the gas boiler itself.