The optimum temperature of hot water in a gas boiler. The optimal mode of operation of a wall-mounted gas boiler. Norms and optimal values of the coolant temperature

Gas equipment is ubiquitous in apartments and country houses. You independently regulate the equipment, setting a comfortable temperature in the room. So you are not dependent on utilities, you can save fuel as you see fit. But in order for the operation to be really economical, it is important correct setting gas boiler.

Why do you need the correct adjustment of equipment:

To save resources.
To make it comfortable to be in the room, use hot water.
To extend the life of the equipment.

Need to start with right choice boiler, its power. Consider the features of the room: the number and area of windows, doors, the quality of insulation, wall materials. The minimum calculation is based on heat losses per unit of time. You will learn more about this in the article "".

Gas boilers are divided into single-circuit and double-circuit. The latter perform heating to the heating circuit and hot water supply (DHW). Single-circuit units provide only heating. Therefore, to get hot water install indirect heating boilers.

According to the type of placement, the equipment is floor and wall. Floor-mounted units have more power. Therefore, they are used for large areas(from 300 m²). Installation is carried out only in separate rooms (boiler rooms). These are models Baxi (""), Buderus (""), "", "".

Mounted appliances (“Lux”, “”, “”, ) fit perfectly into small apartments in the kitchen. Therefore, it is important to take into account all the nuances of the location. The comfort of residents, as well as the durability of the boiler, depend on the correct selection of parameters.

Power setting

Heating power depends on modulation gas burner. If you have selected a device with electronic control, then it turns on the thermostat, which is connected to the room thermometer. Adjustment occurs automatically: the thermometer measures the temperature in the room. As soon as it falls below comfortable, he gives a command to start the burner or increase the strength of the flame.

In normal mode, the thermometer controls the temperature in only one room. But if you install valves in front of each radiator, control will be in all rooms.

You can adjust the burner manually by operating the gas valve. This is true for atmospheric boilers with open cam combustion. So, in the Protherm "Gepard", "Proterm Bear" models, the valve is controlled by an electric motor. To change the settings, you need to go to the service menu. Most often, this is done by a specialist, and the user performs the actions indicated in the instructions.

But still, we will tell you how to call the hidden menu for adjustment.

Before entering the menu and setting up, do this:

Open the taps on the batteries.
Set the room thermostat to the highest setting.
In the user settings, set the maximum temperature that you use in severe frosts. The burner always turns off when the reading reaches 5°C above the set value. For example, at +75 degrees, a shutdown will occur when it reaches 80 degrees.
Cool the coolant to 30°C.

For Protherm Gepard:

Hold down the Mode key on the panel. As soon as "0" appears on the display, set the value to 35 by pressing "+" and "-".
Press Mode to confirm.
As soon as d. 0, enter the line number in the menu. Do this with "+" and "-" d.(number). To set the maximum burner power, choose d.53, the minimum - d.52.
Use Mode to navigate to parameter selection. Change it "+" "-".
The installation receives an automatic confirmation.
Return to the original menu - hold Mode.

During regulation, use the panel to monitor the change in flame and temperature rise.

For "Proterm Panther" actions are different:

Press Mode for about 7 seconds.
Using keys 2 (look at the picture above), enter code 35.
Confirm your entry.
As soon as d.00 appears on the left side of the screen, use the 2 buttons to enter the number.

Change parameter from right side screen, you can use the keys 3.
After confirmation, press mode to exit the menu.

For Electrolux Quantum models:

Unplug the appliance from the mains for a few seconds.
After turning on the regulator, hold the red button for 15 seconds.
As soon as P01 lights up on the display, press the red key until P07 appears.

If the number 1 flashes after P07, then 38°C - 85°C is maintained. If it glows 4 - 60°С–85°С, 7 - 38°С–60°С.
Use the "+" "-" knob to adjust the desired value.
Switch off the boiler for a few seconds. Now it will automatically support the specified parameters.

How to program technology Viessmann ("Wiesman"), look at the video:

For Eurosit 630:

All the steps above are used to set the appliance in heating mode. Many users are faced with a problem when, in DHW mode, water of an unstable temperature comes out of the tap. To fix this, use our recommendations.

Hot water temperature changes

To regulate the water supply to comfortable levels, it is necessary to reduce the burner power.

Open the mixer to switch the boiler to DHW mode.
Set the temperature to 55°C.
Go to the service menu as described above (for "Proterm").
Select parameter d.53.
Click Mode.
After that, the maximum power will appear in the line. Let's take 17 as an example.

If you experiment and immediately select the minimum value - 90, then the temperature of the water from the tap will not be comfortable. We set 80 and we get an increase in the degree of water. Raise the values little by little until you are satisfied with the DHW supply. In our case, the water reached +50 degrees, and the setting was 80. This is despite the fact that the factory was - 17. This is such a difference.

SIT valve adjustment

The automation of some units provides for the presence of a gas valve of the SIT type. It is found in the models Vaillant ("Vailant") and "Proterm". Adjustment is carried out by turning the bolts on the valve. To change the power, you need to change the pressure. Values of 1.3–2.5 kPa are considered normal.

To reduce pressure, turn the bolts counterclockwise. To reduce the pressure in DHW mode, you need to rotate the adjustment nut. More details are shown in the video:

bypass valve

If the batteries in the room warm up unevenly, increase the coolant circulation rate. To do this, turn the bypass screw clockwise.

If, on the contrary, the liquid makes noise in the batteries when the heating is turned on, then reduce the coolant speed by turning the screw in reverse side. Use a pressure gauge or a digital differential pressure gauge to set up and measure. He will indicate the nominal pressure, which should not exceed 0.2–0.4 bar.

Launch problems

During launch and operation gas equipment Bosch, Ariston, Ferroli, Oasis may have problems.

Boiler clocking

At wrong choice the power of technology, excessive cyclicity occurs. This means that the burner of the device often turns on and off, and the radiators do not have time to warm up. Firstly, it leads to rapid wear of units and parts of equipment. Secondly, it is used a large number of fuel.

To eliminate the phenomenon and reduce the cyclicity, two methods are used:

Lower the burner flame.
Increase the heating power by including additional radiators in the circuit.

How to complete the first paragraph, we described above. Sometimes you have to mount additional batteries, although this is a rather expensive method.

Igniter not working

If ignition attempts at Immergaz, Korea Star were unsuccessful, inspect the igniter. He could get dirty. The problem is fixed by cleaning the part. You can wipe it with a dry cloth or use a solvent.

Examine the combustion block. Soot often accumulates there. Soot is removed by lightly tapping on the gas supply pipe to the burner.

The igniter worked, but there is still no ignition. Diagnosis required:

thermocouples;
supply valve;
thermostat;
solenoid valve.

No DHW heating

When the mixer is opened, water is supplied with a small pressure, the flow is cold. Inspect the heat exchanger for clogging caused by scale deposits. Clean the tubes with reagents. Use a pump to pump. Rinse the knot after the procedure running water. To make the temperature readings comfortable, install cleaning filters. They reduce the likelihood of scale formation.

Hello, friends. What is the optimal mode of operation of a gas boiler? There are a number of contributing factors here. These are the conditions of its work, and the potential, and the design, etc.

The main motive for the search better regime is an economic benefit. At the same time, the technique must issue maximum efficiency and fuel consumption is minimal.

Factors affecting the operation of the boiler

They are:

Design. A technique can have 1 or 2 circuits. It can be wall or floor mounted.
Normative and actual efficiency.
Competent arrangement of heating. The power of technology is comparable to the area that needs to be heated.
Technical conditions of the boiler.
Gas quality.

All these points need to be optimized so that the device gives the best efficiency,

Design question.

The device can have 1 or 2 circuits. The first option is complemented by an indirect heating boiler. The second already has everything you need. And the key mode in it is to provide hot water. When water is supplied, heating is completed.

Wall-mounted models have less power than those placed on the floor. And they can heat a maximum of 300 sq.m. If your living area is larger, you will need a floor standing unit.

P.2 efficiency factors.

The document for each boiler reflects the standard parameter: 92-95%. For condensation modifications - approximately 108%. But the actual parameter is usually lower by 9-10%. It decreases even more due to heat losses. Their list:

Physical malaise. The reason is excess air in the apparatus when the gas is burned, and the temperature of the exhaust gases. The larger they are, the more modest the efficiency of the boiler.
Chemical burn. What is important here is the amount of CO2 oxide that occurs when carbon is burned. Heat is lost through the walls of the apparatus.

Methods for increasing the actual efficiency of the boiler:

Elimination of soot from the pipeline.
Elimination of scale from the water circuit.
Limit chimney draft.
Adjust the position of the blower door so that the heat carrier acquires the maximum temperature.
Elimination of soot in the combustion chamber.
Installation of a coaxial chimney.

P.3 Questions on heating. As already noted, the power of the device necessarily correlates with the heating area. A smart calculation is needed. The specifics of the structure and potential heat losses are taken into account. It is better to entrust the calculation to a professional.

If the house is built according to building codes, the formula is 100 W per 1 sq.m. It turns out this table:

Area (sq.m.)		Power.
Minimum	Maximum	Minimum	Maximum
60	200		25
200	300	25	35
300	600	35	60
600	1200	60	100

Acquire better boilers foreign production. Also in the advanced versions there are many useful options to help you achieve the optimal mode. One way or another, the optimal power of the device is in the range of 70-75% of the highest value.

technical conditions. To prolong the life of the machine, remove from internal parts soot and scale.

The optimal mode of operation of a gas boiler to save gas is achieved by eliminating clocking. That is, you need to set the gas supply to the smallest value. The attached instructions will help you with this.

There is an aspect that cannot be influenced - this is the quality of the gas.

Methods for setting the optimal mode

Many devices are programmed for the temperature of the thermal carrier. When it reaches the required values, the unit briefly turns off. The user can set the temperature himself. The parameters also change depending on the weather. For example, the optimal mode of operation of a gas boiler in winter is obtained at values of 70-80 C. In spring and autumn - at 55 - 70 C.

Modern models have temperature sensors, thermostats and auto-tuning modes.

Thanks to the thermostat, you can set the desired climate in the room. And the heat carrier will warm up and cool down with a specific intensity. At the same time, the device reacts to temperature fluctuations in the house and outside. This is the optimal mode of operation of the outdoor gas boiler. Although with the help of such devices it is possible to optimize the mounted model. At night, the parameters can be reduced by 1-2 degrees.

Thanks to these devices, gas is spent less by 20%.

If you want solid efficiency and savings from the boiler, purchase the desired model. The following are some examples.

Model examples

Baksi.

The optimal mode of operation of this wall-mounted gas boiler is achieved as follows: in small apartments, the indicators are set to F08 and F10. The modulation spectrum starts at 40% of the highest power. And the minimum possible operating mode is 9 kW.

Many models of this company are very economical and can work at low gas pressure. Pressure limits: 9 - 17 mbar. Suitable voltage range: 165 - 240 V.

Vaillant.

Many devices of this brand work optimally under such conditions: power - 15 kW. Submission is placed at 50-60. The device works for 35 minutes, rests for 20 minutes.

Ferroli.

Best conditions: 13 kW for heating, 24 kW for water heating.

Mercury.

The water pressure in the network is a maximum of 0.1 MPa. The highest temperature indicator at the outlet section is 90 C, the nominal value of flue gases is at least 110 C. The vacuum downstream of the apparatus is a maximum of 40 Pa.

Navien.

Basically, these are two-circuit units. Automation works here. The mode is self-configuring. Sets the room heating setting. There is a pump that can reduce the parameters by 4-5 degrees.

Ariston.

The automatic mode setting also works. Often people choose models with the "Comfort-Plus" mode.

Buderus.

Values are usually set on the feed: 40 - 82 C. The current parameter is usually reflected on the monitor. The most convenient summer mode is at 75 C.

Conclusion

Thanks to the gas boiler, you can conveniently adjust the climate in the house. Especially if you use innovative technology with automatic modes and many useful options.

External low-temperature corrosion occurs as a result of the formation of drops or a film of moisture on the heating surfaces and reacts with the metal surface.

Moisture appears on the heating surfaces during the condensation of water vapor from flue gases due to the low temperature of the water (air) and, accordingly, the low temperature of the wall.

The dew point temperature at which water vapor condenses depends on the type of fuel being burned, its moisture content, excess air coefficient, and the partial pressure of water vapor in the combustion products.

It is possible to exclude the occurrence of low-temperature corrosion on heating surfaces when the surface temperature on the side of the gaseous medium is 5°C higher than the dew point temperature. This value of the dew point temperature corresponds to the condensation temperature of pure water vapor and appears during fuel combustion.

When fuel (fuel oil) that contains sulfur is burned, sulfuric anhydride is formed in the combustion products. Part of this gas, oxidized, forms aggressive sulfuric anhydride, which, dissolving in water, forms a film of sulfuric acid solution on the heating surfaces, as a result, the corrosion process is sharply enhanced. The presence of sulfuric acid vapor in the combustion products increases the dew point temperature and causes corrosion in those areas of the heating surface, the temperature of which is much higher than the dew point temperature and when burning natural gas is 55 ° C, when burning fuel oil - 125 ... 150 ° C.

In steam boilers, in most cases, the temperature of the water entering the economizer exceeds the required temperature because the water comes from atmospheric deaerators with a temperature of 102 ° C.

This issue is more difficult to solve for hot water boilers, since the temperature of the coolant in the external pipeline of the heat supply system entering the boilers depends on the outside air temperature.

It is possible to increase the temperature of the incoming water to the boiler by recirculating hot water from the boiler.

The efficiency and reliability of the water heating system of a water boiler depends on the flow rate of the coolant through the recirculation. With an increase in pumping, the temperature of the water entering the boiler increases, the temperature of the exhaust gases also increases, which means that the efficiency of the boiler decreases. Power consumption per drive re circulation pump in this case increases.

Operating instructions for hot water boilers propose to regulate the operation of the heating water heating system in such a way that the temperature of the water at the inlet to the boilers during the combustion of natural gas does not fall below 60 ° C. This requirement reduces the efficiency of their operation, since anti-corrosion measures to maintain the temperature of the walls of the heating surfaces can be provided if the temperature is below 60 ° C. But in this case, it is necessary to take into account the temperature of the walls of the heating surface in the calculations.

An analysis of such calculations shows that, for example, for hot water boilers operating on natural gas, at a gas temperature of 140 ° C, the temperature of the water at the inlet to the boiler must be maintained at least 40 ° C, i.e. below 60 ° C, which the instructions suggest.

Thus, by changing the mode of operation of hot water boilers, it is possible to save heat and electricity in the absence of low-temperature corrosion. metal surfaces hot water boilers.

The efficiency of the heating system depends on many factors. These include the rated power, the degree of heat transfer of radiators and the temperature regime of operation. For the latter indicator, it is important to choose the right degree of heating of the coolant. Therefore, it is necessary to determine the optimal temperature in the heating system for water, radiators and the boiler.

What determines the temperature of the water in the heating

For correct operation heat supply requires a graph of the temperature of the water in the heating system. According to it, the optimal degree of heating of the coolant is determined depending on the influence of various external factors. It can be used to determine what water temperature in the heating batteries should be in a certain period of time the system is running.

It is a common misconception that the higher the degree of heating of the coolant, the better. However, this increases fuel consumption, increasing operating costs.

Often low temperature heating batteries is not a violation of the norms for space heating. A low-temperature heat supply system was simply designed. That is why the exact calculation of water heating should be given Special attention.

The optimum water temperature in the heating pipes largely depends on external factors. To determine it, the following parameters must be taken into account:

Heat loss at home. They are decisive for the calculation of any type of heat supply. Their calculation will be the first stage in the design of heat supply;
Boiler characteristics. If the operation of this component does not meet the design requirements, the water temperature in the heating system of a private house will not rise to the desired level;
Material for the manufacture of pipes and radiators. In the first case, it is necessary to use pipes with a minimum thermal conductivity. This will reduce heat losses in the system during the transportation of the coolant from the boiler heat exchanger to the radiators. For batteries, the opposite is important - high thermal conductivity. Therefore, the temperature of the water in the radiators central heating, made of cast iron, should be slightly higher than that of aluminum or bimetallic structures.

Is it possible to independently determine what temperature should be in the radiators? It depends on the characteristics of the system components. To do this, you should familiarize yourself with the properties of the batteries, the boiler and the heat supply pipes.

AT centralized system heat supply temperature of the heating pipes in the apartment is not important indicator. It is important that the norms for heating air in living rooms are observed.

Heating standards in apartments and houses

In fact, the degree of water heating in pipes and heat supply radiators is a subjective indicator. It is much more important to know the heat dissipation of the system. It, in turn, depends on the minimum and Maximum temperature water in the heating system can be reached during operation.

For autonomous heat supply, the norms of central heating are quite applicable. They are detailed in the resolution of the PRF No. 354. It is noteworthy that the minimum water temperature in the heating system is not indicated there.

It is only important to observe the degree of heating of the air in the room. Therefore, in principle, the temperature regime of operation of one system can be different from another. It all depends on the influencing factors that were mentioned above.

In order to determine what temperature should be in the heating pipes, you should familiarize yourself with the current standards. In their content there is a division into residential and non-residential premises, as well as the dependence of the degree of air heating on the time of day:

In rooms in daytime . In this case, the standard heating temperature in the apartment should be +18°C for rooms in the middle of the house and +20°C in the corners;
In living rooms at night. Some reduction is allowed. But at the same time, the temperature of the heating radiators in the apartment should provide, respectively, + 15 ° С and + 17 ° С.

Responsible for compliance with these standards Management Company. In case of their violation, you can request a recalculation of payment for heating services. For autonomous heat supply, a table of temperatures for heating is made, where the values \u200b\u200bof the heating of the coolant and the degree of load on the system are entered. At the same time, no one bears responsibility for violation of this schedule. This will affect the comfort of staying in a private house.

For centralized heating, it is mandatory to maintain the required level of air heating at landings and non-residential premises. The temperature of the water in the radiators must be such that the air is heated to a minimum value of +12°C.

Calculation of the temperature regime of heating

When calculating the heat supply, the properties of all components must be taken into account. This is especially true for radiators. What is the optimal temperature in the radiators - + 70 ° C or + 95 ° C? It all depends on the thermal calculation, which is performed at the design stage.

First you need to determine the heat loss in the building. Based on the data obtained, a boiler with the appropriate power is selected. Then comes the most difficult design stage - determining the parameters of heat supply batteries.

They must have a certain level of heat transfer, which will affect the temperature curve of the water in the heating system. Manufacturers indicate this parameter, but only for a certain mode of operation of the system.

If you need to spend 2 kW of thermal energy to maintain a comfortable level of air heating in a room, then the radiators must have no less heat transfer.

To determine this, you need to know the following quantities:

Permissible maximum water temperature in the heating system -t1. It depends on the power of the boiler, temperature limit impact on pipes (especially polymer);
Optimal the temperature that should be in the heating return pipes - t This is determined by the type of wiring of the mains (one-pipe or two-pipe) and the total length of the system;
Required degree of air heating in the room -t.

Tnap=(t1-t2)*((t1-t2)/2-t3)

Q=k*F*Tnap

Where k- heat transfer coefficient of the heating device. This parameter must be specified in the passport; F- radiator area; Tnap- thermal pressure.

Varying various indicators of maximum and minimum temperature water in the heating system, you can determine the optimal mode of operation of the system. It is important to correctly initially calculate the required power heater. Most often, the indicator of low temperature in heating batteries is associated with heating design errors. Experts recommend adding a small margin to the obtained value of the radiator power - about 5%. This will be needed in case of a critical decrease in the temperature outside in the winter.

Most manufacturers indicate the heat output of radiators according to the accepted standards EN 442 for mode 75/65/20. This corresponds to the norm of the heating temperature in the apartment.

Water temperature in the boiler and heating pipes

After performing the above calculation, it is necessary to adapt the heating temperature table for the boiler and pipes. During operation of the heat supply, there should not be any emergencies, common cause which is a violation of the temperature graph.

The normal indicator of water temperature in central heating batteries can be up to + 90 ° С. This is strictly monitored at the stage of preparation of the coolant, its transportation and distribution to residential apartments.

Much the situation is more difficult with autonomous heating. In this case, control completely depends on the owner of the house. It is important to ensure that there is no excess of water temperature in the heating pipes that goes beyond the schedule. This may affect the security of the system.

If the water temperature in the heating system of a private house exceeds the norm, the following situations may occur:

Pipeline damage. In particular, this applies to polymer lines, in which the maximum heating can be + 85 ° C. That is why the normal value of the temperature of the heating pipes in an apartment is usually + 70 ° C. Otherwise, deformation of the line may occur and a rush will occur;
Air heating excess. If the temperature of the heat supply radiators in the apartment provokes an increase in the degree of air heating above + 27 ° C - this is beyond the normal range;
Reduced service life of heating components. This applies to both radiators and pipes. Over time, the maximum temperature of the water in the heating system will lead to breakdown.

Also, a violation of the schedule of water temperature in the system autonomous heating provokes the formation air locks. This occurs due to the transition of the coolant from a liquid state to a gaseous state. Additionally, this affects the formation of corrosion on the surface of the metal components of the system. That is why it is necessary to accurately calculate what temperature should be in the heat supply batteries, taking into account their material of manufacture.

The most common violation thermal regime work is observed in solid fuel boilers. This is due to the problem of adjusting their power. When a critical temperature level in the heating pipes is reached, it is difficult to quickly reduce the boiler power.

The influence of temperature on the properties of the coolant

In addition to the above factors, the temperature of the water in the heat supply pipes affects its properties. This is the principle of operation of gravitational heating systems. With an increase in the level of heating of water, it expands and circulation occurs.

However, in the case of using antifreezes, the excess temperature in the radiators can lead to other results. Therefore, for heat supply with a coolant other than water, you must first find out the permissible indicators of its heating. This does not apply to the temperature of the radiators. district heating in the apartment, since antifreeze-based liquids are not used in such systems.

Antifreeze is used if there is a possibility of low temperature affecting the radiators. Unlike water, it does not begin to change from a liquid to a crystalline state when it reaches 0°C. However, if the work of heat supply is outside the norms of the temperature table for heating upwards, the following phenomena may occur:

Foaming. This entails an increase in the volume of the coolant and, as a consequence, an increase in pressure. The reverse process will not be observed when the antifreeze cools;
Formation limescale . The composition of antifreeze includes a certain amount of mineral components. If the norm of the heating temperature in the apartment is violated in a big way, their precipitation begins. Over time, this will lead to clogging of pipes and radiators;
Increasing the density index. There may be malfunctions in the operation of the circulation pump if its rated power was not designed for the occurrence of such situations.

Therefore, it is much easier to monitor the temperature of the water in the heating system of a private house than to control the degree of heating of antifreeze. In addition, ethylene glycol-based compounds emit a gas harmful to humans during evaporation. Currently, they are practically not used as a heat carrier in autonomous heat supply systems.

Before pouring antifreeze into the heating, all rubber gaskets should be replaced with paranitic ones. This is due to the increased permeability of this type of coolant.

Ways to normalize the temperature regime of heating

The minimum value of the water temperature in the heating system is not main threat for her work. This, of course, affects the microclimate in residential premises, but in no way affects the functioning of heat supply. In case of excess of norm of heating of water there can be emergencies.

When drawing up a heating scheme, it is necessary to provide for a number of measures aimed at eliminating a critical increase in water temperature. First of all, this will lead to an increase in pressure and an increase in the load on the inner surface of pipes and radiators.

If this phenomenon is one-time and short-lived, the heat supply components may not be affected. However, such situations arise under the constant influence of certain factors. Most often, this is the incorrect operation of a solid fuel boiler.

Installing a security group. It consists of an air vent, a bleed valve and a pressure gauge. If the water temperature reaches a critical level, these components will remove excess coolant, thereby ensuring the normal circulation of the liquid for its natural cooling;
mixing unit. It connects the return and supply pipes. Additionally, a two-way valve with a servo drive is installed. The latter is connected to a temperature sensor. If the value of the degree of heating exceeds the norm, the valve will open and the flows of hot and cooled water will mix;
Electronic heating control unit. It records the temperature of the water in various parts of the system. In case of violation of the thermal regime, he will give the appropriate command to the boiler processor to reduce power.

These measures will help prevent incorrect operation of the heating even at the initial stage of the problem. The most difficult to regulate the level of water temperature in systems with solid fuel boiler. Therefore, for them, special attention should be paid to the choice of parameters of the safety group and the mixing unit.

The effect of water temperature on its circulation in heating is described in detail in the video:

Maintenance of a gas boiler with low productivity is expensive. Therefore, anyone who uses such a device wants to find optimal operation of the gas boiler, at which it will have the highest possible efficiency (efficiency) at minimal cost fuel. This problem becomes especially urgent on the eve of the next heating season.

The performance of a gas boiler is influenced by various factors. If you haven't bought yet this device, but only plan to purchase it, please note that the main condition for its installation is the presence of a centralized gas supply. Some believe that they can get by with bottled gas, but this will significantly increase costs. In this case, it is better to install electric heating.

Optimum performance depends on the following criteria:

Boiler designs - they can be single-circuit, double-circuit, mounted, floor, etc.
Efficiency - nominal and real.
Proper organization of heating in the house: the power of the boiler must correspond to the area of \u200b\u200bthe heated premises.
The technical condition of the equipment.
Gas quality.

Now let's take a closer look at how each of the criteria can be optimized to maximize device performance.

Boiler design

Boilers are single-circuit and double-circuit. The first one will have to buy an indirect heating boiler so that it can heat water. The double-circuit option is preferable, as it is equipped with everything necessary for the production of hot water and heating the house. For ease of use, the priority mode in such a boiler is the supply of hot water. This means that when the water supply is turned on, the heating stops.

There are wall and floor gas boilers. The first have less power and can only heat a room up to 300 m². If your house is larger, you will need to purchase another wall-hung or floor-standing boiler.

Nominal and real efficiency

The instructions for any gas boiler indicate the nominal efficiency, usually it is 92-95%, for condensing models - about 108%. However, the real figure is usually 9-10% lower. Further reduces its presence various kinds heat loss:

Physical underburning - this indicator depends on the volume of excess air in the unit during the gas combustion process. It is also affected by the temperature of the flue gases: the higher it is, the lower the efficiency of the boiler.

Chemical underburning - this indicator varies depending on the volume of oxide carbon monoxide that comes from the combustion of carbon.
Heat loss that escapes through the walls of the boiler.

You can increase the actual efficiency of the device in the following ways:

Reducing the physical underburning rate by regularly cleaning soot on the pipeline and removing scale from the water circuit.
Reducing the amount of excess air by installing a draft limiter on the chimney.
By adjusting the position of the blower damper in such a way that the maximum temperature of the coolant is reached.
Regular cleaning of soot on the combustion chamber, which increases gas consumption.

To increase the efficiency of a gas boiler will allow replacing the chimney with a more innovative one. Most traditional branch pipes are too dependent on weather conditions. They were replaced by a coaxial chimney, which is resistant to temperature changes and is able to increase efficiency, as well as save fuel.

Note! Some owners of gas boilers make a mistake - they pour out the coolant and pour in tap water. This is not worth doing, as new plumbing water, when heated, leaves scale on the walls of the pipeline.

How to properly organize home heating with a gas boiler?

Matching the power of the heating boiler to the heated area of the room is a key factor in the quality of heating. This factor also affects the duration of uninterrupted operation of the unit.

In order to accurately calculate the required boiler power for a house, one should take into account the features of the structure, possible heat losses through walls and ceilings. It is quite difficult to make these calculations on your own, so it is better to hire a specialist who can correctly determine the optimal boiler power.

Usually for heating a house built in accordance with all building codes, 100 W of power per 1 m² is enough. Based on this rule, we get the following table.

When buying gas boilers, it is better to give preference to modern foreign-made models, since their quality is higher compared to domestic ones. Also, more "advanced" units have additional functions settings with which you can choose the optimal mode of operation of the gas boiler.

Note! When choosing a gas boiler, it should be noted that its optimal power should be 70-75% of the maximum.

Below is a video showing how to install optimal wall boiler mode.

Technical condition of the boiler

From technical condition gas boiler directly depends on its performance. In order for it to last as long as possible and work in optimal mode, it is necessary regular care. It is important to clean the internal elements from soot and scale in a timely manner.

A frequent problem of a gas boiler, in which its performance decreases, is clocking. This means that the unit turns on too often due to excessive heating of the coolant. This usually occurs due to too much power of the device. Clocking leads to excessive consumption of gas and rapid wear of equipment. solved this problem very simple - you should set the gas supply level to the minimum. You can do this by following the attached instructions.

Gas quality

The quality of the gas is the only factor that we cannot influence. An increased volume of moisture leads to an increase in gas consumption.

How to set the optimal mode?

There is such a thing as the optimal mode of a gas boiler. As mentioned above, the unit consumes fuel economically if it operates at 75% of maximum power. Most boilers are set to the temperature of the coolant. When it reaches the required value, the boiler turns off for a while. The user can determine which optimal operating temperature of the gas boiler it will suit you and install it. The value may change depending on weather conditions, for example, in winter the temperature of the coolant should be 70-80°C, and in spring or autumn it can be reduced to 55-70°C.

Modern models of gas boilers are equipped with temperature sensors, thermostats and automatic system mode settings. If your boiler does not have such equipment, it can be purchased at a specialized store and installed on almost any model. Using the thermostat, you can set the desired temperature in the room, which the gas boiler must maintain. Depending on it, the coolant will heat up and cool down at a certain frequency. This mode of operation provides for the automatic reaction of the boiler to temperature changes in the street or in the house. In addition, at night it is advisable to reduce the heat in the room by 1-2 ° C. Thus, automation will minimize gas consumption, and at the same time maintain the temperature in the room at the desired level. Note! Installing sensors and a thermostat will save up to 20% of gas.

Some modern models boilers can change the mode of operation depending on the presence of people in the room. This makes it possible to maintain the optimum temperature at prolonged absence hosts. But still, it is not worth leaving the boiler in working condition for a long time unattended. Otherwise, in the event of an emergency power outage, the unit may fail.

If you find it difficult to independently reconfigure or adjust the operation of your gas boiler, contact the specialists.

The most economical boilers

Statistics and specifications indicate that gas boilers of foreign manufacturers have the highest efficiency. Manufacturers Baxi, Protherm, Buderus, Bosch have proven themselves well on the market.

If you haven't made your choice yet, take a look at condensing boilers- its efficiency is higher than that of traditional ones by 10-11%, they are the most economical and powerful, but they are also not cheap. But low fuel consumption and long term services will pay for the money spent on it. Its principle of operation is different in that the combustion products of the fuel do not leave in the form of gas, but pass through a heat exchanger made of stainless steel, heat water, cool down and fall out in the form of liquid condensate.

To achieve optimal performance gas boiler, it should be maintained in good condition, regularly cleaned of soot and scale, and also equipped with an automatic room temperature control system. If you follow these recommendations, your unit will enjoy uninterrupted operation, low gas consumption and a cozy atmosphere in the house.