A common phenomenon that can be encountered in apartment buildings or private buildings is various types of noise emanating from the heating system. Like any excess noise in communication systems, humming, crackling or knocking in heating pipes have their reasons, and if they are not eliminated, along with psychological discomfort for residents, this can lead to serious problems V heating system residential building.
Characteristics of noise in heating pipes
When talking about unwanted noise effects in heating system pipes, we should first mention a few words about the difference between noise and sound. If sound waves are characterized by a certain frequency and amplitude, then noise vibrations are characterized by randomness, lack of uniformity and rhythm. The noise level is measured in decibels, and its normal values are up to 30-40 decibels in an apartment and up to 45-55 decibels on the street. Anything that exceeds this level is a deviation from the norm and causes acoustic and psychological discomfort to a person.
Installation of communication systems in a home is carried out in such a way that the noise emanating from them is not felt by residents and is within the limits sanitary standards. This also applies to heating pipes, and therefore the appearance of hum, crackling, knocking and other audible noises in them indicates a problem with the heating system.
As an exception, it is worth mentioning the noise that occurs in heating communications during the first start-up of the system. This kind of knocking or crackling noise in heating pipes is not unusual - it is usually associated with pressure drops in the supply and receiving pipelines when water is first supplied to them. Subsequently, as all pipelines of the system are filled with water, the noise in them weakens and then stops completely.
Noise effects resulting from malfunctions in the system can be of various types: hum, crackling, clicking, knocking, bubbling, etc. Their reasons may be related to errors made when installing heating pipes, or may arise during operation (read: " "). Noises of different natures have different origins, and therefore identifying the type of noise plays a role important role to establish its causes.
Causes of humming and whistling in heating system pipes
Whistling or humming in heating pipes is quite common, and among the main factors for their occurrence are the following:
- leaks in the heating system;
- the appearance of narrowings in the lumen of the pipes, interfering with normal water circulation;
- the use in some apartments or premises of a residential building of pipes of a smaller diameter than in the rest of the heating communications.
If the reason for the humming pipes is unclear, you should first find out if there are any leaks in the heating system. For this purpose, it is necessary to inspect all apartments and rooms in the house, but if a water leak is not found in them, then also the basement, in which the main plumbing and heating structures are usually located.
Most often, leaks form in fistulas of heating pipeline structures or in valve connections. If such a leak does occur, it is usually not difficult to detect it with careful examination: as a rule, a small stream of water flows from the problem area and a small cloud of hot steam comes out. A stream of water can be detected at some distance from the leak site, and the hum of pipes can sometimes spread over quite significant distances.
If a careful audit reveals that there are no leaks in the system, then another likely cause is a decrease in the flow of pipes in a certain area. The location of this defect is determined by ear by examining the entire heating system. The identified problem area must be replaced. In any case, to repair and restore the damaged area, it would be correct to call a plumber, since this task may not be possible for a non-specialist.
Why do you hear clicking, crackling and knocking noises?
The appearance of clicking or crackling noises in the heating system pipes usually indicates that foreign solid particles have appeared inside the communications. The impact of such small particles on the pipe walls is the direct cause of such noise.
As a rule, heating pipes knock and click when the following problems occur:
- wear of some key elements of the system;
- valve valve malfunctions;
- expansion of metal heating pipes under the influence of heat.
In most cases, knocking in the heating pipes of a private house or apartment building can be eliminated by simply draining the clogged water from the heating system and replacing it with clean water. If such flushing does not eliminate noise, then the faulty parts of the system must be replaced. In particular, valve valves are subject to inspection, problems with which are often the cause of such noise.
Another reason for knocking in heating pipes may be thermal expansion. metal structures pipelines. Usually in this case, the crackling and knocking noises are quiet and intermittent. The expansion of pipes can lead to slight movements and disruption of the fastening of some structural elements, which leads to noise of this kind. To solve this problem, it is necessary to inspect the places where various parts and elements are fixed, and, if necessary, re-fasten them.
Finally, another reason that can lead to clicking and knocking in heating pipes is the so-called water hammer. It occurs when the water circulating in the pipes is instantly shut off by closing the valve, valve or tap. Since the compressibility of water is practically zero, and stopping the water jet cannot occur immediately, a short time in the place where the tap is suddenly closed, the pressure can jump by tens of atmospheres. This can lead to malfunctions of valves, valves, threaded connections with clicking or crackling sounds, and even failure of some parts. Therefore, to avoid this, you should not suddenly shut off the flow of liquid circulating in the heating system.
Seething water in heating pipes and radiators
Sometimes you have to deal with a problem such as bubbling or gurgling water inside heating lines. This noise occurs due to the appearance of air bubbles inside the water. In addition to noise effects, another undesirable consequence of this problem is a decrease in the temperature of the coolant and the efficiency of the system as a whole.
If seething or gurgling noises occur, the system should be checked for the presence of slopes and distortions, in which a layer of air can form and stagnate. In some cases, to remove air bubbles from the heating system, special air vent valves are installed in the structure on the upper floors. In other cases, it may be necessary to correct distortions and slopes, which requires shutting off and stopping the heating in the entire house.
Other sources of noise in the heating system
In addition to the reasons mentioned above, the following factors can be sources of various noises in heating communications:
- sudden pressure surges for one technical reason or another;
- non-compliance of the coolant with technological standards;
- noises coming from pumps in the boiler room.
To prevent sudden pressure changes in heating systems of private or apartment buildings, it is recommended to install special control devices. Sometimes the noise can be caused by pumps located in the boiler room, the operation of which can lead to resonance in the water-jet elevator of the heating system. In some cases, the resulting buzzing or crackling can be eliminated by installing a valve between the elevator and the pipe.
To prevent noise in heating pipes, it is recommended to avoid using threaded valves and install instead Ball Valves, closing the water flow by turning 90°. They are much more reliable for such systems, and their operation is almost unaffected by coolant flows or other mechanical factors inside the structure.
Boiler equipment used for heating systems can operate at various types gaseous, liquid or solid fuel, or also electricity. However, the operation of boilers of any type may be accompanied by certain side processes, which often affect the heating system and can cause noise in it.
In particular, wood or coal solid fuel can lead to clogging of the chimney with a decrease in draft force. The operation of boiler houses using liquid diesel fuel may be accompanied by incomplete combustion and accumulation of soot. All this often leads to noise and humming in heating communications, and requires measures to eliminate these problems.
Noise may also appear due to malfunctions of pumps, valves or other devices and mechanisms located in the boiler room or basement. The solution to the problem in such situations is to repair faulty elements or replace them.
In general, any specific situation with the occurrence of noise in the heating system requires an individual approach, and there cannot be universal methods here. In some cases, identifying and eliminating faults on your own can be very difficult, and in this situation, the only way out of the situation is to contact qualified specialists.
Noisy batteries - unnatural phenomenon causing significant discomfort to residents of a private home. The volume of crackling, splashing, and gurgling noises is not always evenly distributed throughout the system.
Some rooms of the house do not suffer, while in some rooms it is simply impossible to be present. The problem is aggravated by the use of metal elements when installing radiators - metal conducts vibrations well, making the hum loud and widespread.
Identifying the cause of noise is a priority task, since extraneous sounds indicate disruptions in the functioning of a system that is vital in the cold season. Some of the reasons left unattended will lead to to failure of the heating circuit, accident or major material damage.
Why do heating radiators make noise in a private house?
Batteries in a private house are noisy for different reasons. The breakdown can be corrected only after it is known exactly why the radiators are noisy.
Overpressure
Radiator noises caused by excessive pressure inside the entire installation indicate about the danger of a breakthrough.
Technical communications are designed for a certain operating pressure, which is controlled using sensors - pressure gauges.
Based on the standard indicators specified for a specific circuit of heating systems, you can adjust the pressure pumped by the pump, on one's own.
Incorrect installation of thermal valve
Home master doesn’t see the difference which side to put shut-off valves batteries. But if the thermal valve is installed incorrectly, pressure hot water to the valve, causing noise. Such a crane can tap periodically.
Pump noise in the boiler room
Previously, it was customary to place injection equipment in a separate building to reduce the volume of the sound it produces. Modern pumps are located in the basement of private houses.
Their work has been improved to such an extent that the maximum possible efficient use heating circuit with minimal hearing discomfort.
Photo 1. Pumps in a boiler room located in a semi-basement room can cause vibration and noise from radiators.
But incorrectly selected for a specific home pump power is reflected in the appearance of constant noise from radiators and pipes. Metal communications perfectly convey vibrations of a powerful supercharger throughout the private house.
Attention! To prevent this effect, you need to adjust (reduce) the power of the pump, and before installing it coordinate its performance with specialists.
Incorrect boiler operation
Monitoring the correct functioning of the device eliminates the hassle of battery operation and failure. The first sign of problems with the boiler functions is the appearance of extraneous sounds.
To eliminate the defect, the modes of turning on and off the heating apparatus are adjusted.
Frequency of mode changes occurs once every 20-40 minutes. Good performance indicators - 75-80% of rated power boiler
Good decision problems - installation of indoor automatic regulators, which independently control the boiler power by measuring the temperature on a specific radiator.
Uneven supply pipes
When installing a system of “communicating vessels” in a private house the laws of hydrostatics are strictly observed. All installation work are made by level - a device that controls the parallelism and perpendicularity of the elements of the heating circuit to the level earth's surface. Pipes installed at an angle create unnecessary drop in water level, provoking splashing inside them.
Battery displacement when heated
The radiator is attached to the wall using special brackets made of metal with lower thermal conductivity than the batteries themselves.
This protects the stands from unnecessary heating, which reduces the temperature of the entire heating system of a private home.
Bracket material undergoes little thermal expansion.
And heating radiators are sensitive to changes in coolant temperature. High thermal conductivity material expands significantly when heated. Places of connections of such different elements They often crackle and click.
Reference! To prevent contact of parts, the occurrence of noise and subsequent corrosion of the metal in these places of the battery, elastic gaskets are used. Best fit rubber washers.
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Change in coolant temperature
Failures in the operation of the circuit system also occur due to discrepancies in the power of the heating unit.
The degree of heating in the battery is adjustable, but it is better to carefully select all elements of the heating system in advance.
If the boiler is designed by 2 kilowatts, and the total power of the radiators is 1 kilowatt, then this will periodically lead to malfunctions in the circuit, voltage in the pipes, and noise.
The material from which the batteries and pipes are made is also taken into account. Previously used cast iron, which withstood changes in the heating system.
Now other materials are common, less resistant to increased temperatures, although more attractive due to other characteristics.
The radiator clicks and knocks: causes of crackling, knocking and clicking
Specific sounds in the heating system are created when there is foreign particles. Many people reject this possibility, since the heating circuit of a private house is looped and represents closed system with a small coolant turnover. But the appearance of debris in batteries, which causes them to knock, is a cumulative phenomenon.
The water used for heating does not pass through filters, but is taken from a regular water supply. With constant heating, metal salts settle on the walls of pipes and batteries, forming scale.
Tearing off under the pressure of water, the particles move from place to place, as if they click.
For a private home, eliminating the problem of cracking, knocking and clicking in the battery is much easier than for an apartment building. Almost any owner can do this on his own. Coolant through the valve drains into the sewer. The heating circuit and adjacent communications are washed with clean water. Then the coolant is replenished again.
If the valve malfunctions, it is enough simple replacement of an obsolete element.
Murmuring of water in batteries and methods of elimination
Water in batteries can gurgle for various reasons. To determine, you need to know feature of radiators.
Leaky connections
Air bubbles create splashing and murmurs that frighten the owners of the house. The main reason for the appearance is the lack of tightness in threaded connections. Heating circuit sucks air almost always in such conditions. A kind owner knows this feature and controls condition of valves, pipe joints for integrity and tightness.
Photo 2. Leaky battery threaded connections create gurgling sounds, so you should always check the joints.
Bleeding air when unpleasant “symptoms” appear - reliable way avoid discomfort when operating water heating devices in a private home. In the presence of Mayevsky cranes You can quickly bleed air from a separate battery. The “culprit” is determined by palpation. The radiator in which air has accumulated loses temperature, gets cold at the top.
Poor removal of air from the system before starting
Be sure to carefully deflate when commissioning the heating circuit. Heating branches extend from the boiler, each of which has a circulation pump installed. Required on the front side of the pump unscrew the screw. Then the water will begin to drain and the air will bleed out.
During the procedure it comes out about ten liters of coolant. To ensure that the automation does not block the operation of the boiler by reacting to a sharp drop in pressure, the system is simultaneously recharged with an additional amount of liquid.
Error in installing the heating system
The heating circuit in a private house is a serious communications scheme. It is forbidden to install its elements without following strict rules.
Here you will find out why heating radiators make noise in an apartment: how to turn on the radiator correctly to get rid of knocking, crackling and clicking, how to increase efficiency and improve sound insulation in apartment building.
Who doesn’t want warmth and comfort in their apartment in winter? But what to do if the whole impression is spoiled by the noise from the heating radiators in an apartment building?
Of course, look for the cause of its occurrence. The heating system is as complex a mechanism as the human body.
A rumbling stomach can indicate hunger, or maybe a serious illness. Same with batteries. To figure out whether they are “sick” or not, you need to know how heating works in an apartment building.
How do batteries work?
Few people remember these familiar devices in apartments if they are hot and quiet. But as soon as this changes, the question immediately arises: how does the heating battery work in an apartment?
The principle of its service is simple:
- A carrier is supplied to the circuit, usually water.
- The coolant, moving through the system, heats up all its elements.
- A heated radiator gives off its heat to the room.
- The cooling coolant continues its path along the circuit, returning to the general system, and the cycle repeats again.
This is a primitive description general principle, but in fact, the carrier passes from the boiler room through pipes and many nodes, so it is not surprising that somewhere along the way it “got astray” for some reason, which is reflected by knocking or noise in the batteries.
Modern radiators differ in sizes, shapes and types of materials.
Today the domestic market offers:
Sometimes, if the heating radiator in an apartment is noisy, one of the reasons may be the material from which it is made or its shape. The market offers sectional, tubular, panel and plate batteries.
The above sounds can be caused by various factors, but the first place to check is whether the radiators are connected correctly.
Checking radiators
As practice shows, the quality of the heating system largely depends on the integrity of its elements and the quality of their connections.
Before the heating season starts, you need to check everything:
- Firstly, How tightly are the batteries secured and are the brackets loose?. This is especially true for cast iron analogues, since their weight can cause them to sag over time.
- Secondly, check the correct location for the radiators and their position relative to the floor, walls and window sill, if they are traditionally installed under the windows.
- Third, integrity of plugs and their insulation.
- Fourthly, check the connecting nodes and clean them from rust if available.
- Fifthly, check the system for air pockets, what can be done by unscrewing the Mayevsky tap.
- Sixth, after connecting the batteries, you need check them for leaks. If there are any, then as a temporary remedy, you can apply a sealant and call technicians to either fix the leak or replace the element.
If all this work is carried out correctly before turning on the heating radiator in the apartment, then in the event of possible noise in it, it will be possible to eliminate the question of its integrity and look for the true cause of the sounds.
Why are the heating radiators making noise in the apartment?
According to experts, the most common cause Any noise in the heating system is due to its incorrect connection, but as practice shows, there are many more of them:
- Wrong pipe diameter in eyeliner this phenomenon is quite common, since the system consists of many elements and components. For example, the connection to the radiator has a diameter of 50 mm, and the shut-off valve has a diameter of 25 mm, and if it is also covered, it turns out that under high pressure the carrier is trying to break through a small gap. Hence the knocking sound in the heating radiators apartment building.
- Pressure drops in the heating circuit originate in the media distribution elevator. To eliminate the cause, sometimes it is enough to place a washer in front of the elevator pipe, but a more reliable, although slightly expensive, way is to place a pressure regulator there. The knocking will stop immediately.
- Airing the system causes gurgling in it, which can be easily removed by draining the coolant using a Mayevsky tap. Once all the air is out, the sounds will stop.
- It is easy to understand why the heating radiators in the apartment click. Because all elements of the heating circuit are made of metal, which tends to expand when heated, then their involuntary contacts occur, causing similar sounds. They can be removed if gaskets are installed between the mounts and the batteries themselves.
- Why are the heating radiators knocking in the apartment? Sometimes the heating radiators in the apartment knock because The thermostatic device is not installed correctly, for example, from the wrong side. It is enough to return it to its rightful place so that the valve stops knocking and there is silence.
- Many high-rise buildings are equipped with one circulation pump for the entire circuit. Ingoda him vibrations are transmitted through pipes and reach radiators. You can remove its noise using a valve between it and the elevator.
- Why do heating radiators crackle in an apartment? A cracking sound in heating radiators in an apartment building can be caused by coolant if it is not suitable for the heating system.
In this case, technicians must drain the old media and replace it with a new one.
To determine why the radiators are humming in the apartment, it is better to contact a specialist with this question. They can determine the nature of the noise by the quality of the noise and quickly eliminate it.
How to improve system performance? The comfortable sensations of apartment residents depend on how well the batteries are heated. If the heat is not enough, then there is a reason to think about how to increase Battery efficiency
heating in the apartment.
- These can be quite simple actions:
- Getting rid of air jams.
- Flushing radiators to clean them of scale, salts and dirt accumulated over years of operation.
- Removing dust from the battery. Installing a reflective screen, for which you can use ordinary foil, securing it behind the radiator. It's even better if it's a metal sheet or plate, since they will not only reflect heat and not allow it to pass through the wall to the outside, but also, having heated themselves, will become additional source
- Blowing air over a heating radiator in an apartment using a fan is a fairly popular and effective method of warming an apartment. Any device is suitable for this, the main thing is that it operates silently and consumes little energy.
These simple steps can significantly improve the operation of the system, but this can only be checked by knowing the standards for the heating radiators in the apartment.
In this case, we mean their heating level:
- for a two-pipe heating system it is +95 degrees (maximum values are indicated);
- with a single-pipe coolant supply - +115;
- The main indicator of heating batteries in apartments is considered to be +85-90 degrees.
You can measure the heating of radiators with a regular thermometer.
Soundproofing of pipes
Sometimes the cause of strange and annoying sounds is poor system insulation. This happens either because over time, the previously applied sound insulation for the heating radiators in the apartment has become dilapidated, or the builders did not install it at all.
You can carry out work to eliminate the defect yourself:
- Clean the pipes from the old solution.
- Wrap the pipe with any sound-insulating material, for example, fiberglass, and seal the area.
- If a sound insulation sleeve was used, then cleaning is done inside it.
When checking the system for the quality of sound insulation, you need to monitor how firmly all its elements are fastened - from the smallest, for example, brackets, to radiators.
Knowing how the system as a whole works, you can figure out why the heating radiators are noisy in an apartment building. The most simple ways You can solve the problem yourself, for example, by bleeding the air out of the pipes; in other cases, it is better to trust the experience of specialists.