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The heating system is an engineering component of a building designed to ensure comfortable and cozy human life. Like other engineering components, this system has its own operational period, after which high-quality repair work is required. In addition, throughout the entire period of use, the heating system requires careful and timely maintenance. This is necessary to extend its service life.

There are planned and major heating repairs. The type of work is determined depending on the nature and size of the defect that appears. During a major overhaul of a heating system, its main components are re-equipped, the boiler equipment or energy source is partially or completely changed, the foundation is strengthened or the functionality of heating units is improved through process automation. It is also possible to modernize the installed equipment.

Planned repair operations are carried out based on a pre-developed schedule. During such repairs, the heating system as a whole is washed, specific non-working appliances are repaired, leaks are eliminated, loose fasteners are tightened and equipment is painted.

First of all, the normal and efficient operation of the heating system depends on the availability and frequency of scheduled repairs. This allows you to maintain the system in optimal operating condition and prevent a defect at the stage of its development.

Often relatively new heating systems undergo major overhauls. It may be required due to a trivial undetected defect in heating equipment, violation of functional requirements and freezing of thermal energy sources (heating systems of private households often suffer from such defects). Serious breakdowns also occur when the maintenance team is forced to completely replace one or another heating element.

When repairing a heating system, the following work is performed:

heating devices are removed;
the wiring and risers of the central heating system are repaired (if present);
the internal part of the pipelines is being restored;
small heating components are repaired;
the functioning of the heating system is restored.

In addition, a major overhaul involves improving the system aimed at better heating of the premises. During modernization, the following activities are carried out:

pumping equipment is installed, which improves the transportation of the system source of thermal energy;
modern control devices with temperature sensors are installed;
additional equipment such as heated towel rails or a “warm floor” system is installed.

Overhaul of the heating system

The main indicators of a heating system are stability and reliability, which directly affect the living conditions of people in the building. Stopping the system or malfunctioning of certain of its components forces professional repairs to be performed to restore operating condition.

specializes in major repairs of heating systems. Our specialists guarantee the quality and efficiency of the work performed. This allows the building owner to be fully prepared for the onset of the heating season. Regardless of the complexity of the problem, we are ready to help everyone who comes to us. The company has official documents giving the right to carry out repair work. Thus, the customer can be confident in the qualifications and experience of our specialists.

Specifics of major repairs

Major repairs involve the implementation of a whole range of measures. The work can be simple (for example, thermal insulation of pipelines or installation and dismantling of shut-off valves) or complex (for example, laying pipelines or troubleshooting equipment). Our team of technicians works not only to restore the defective heating system, but also to improve it, thereby increasing the efficiency, reliability and economics of heating.
At the initial stage of a major overhaul, the heating system undergoes a visual inspection. Initially, EuroHolod specialists assess the situation taking into account all the customer’s comments. The client receives information with a proposal to replace specific equipment so that the system begins to function better. A detailed inspection is accompanied by drawing up a overhaul plan, after which the customer is given the opportunity to familiarize himself with the estimate for maintenance.
When performing repair operations, the specifics of the heating system, as well as the structural characteristics of the serviced object, are taken into account. It is recommended to draw up a preliminary application for performing these operations in order to timely complete all repair stages and prepare the heating system for seasonal operation.

Description of repair measures

During a major overhaul, valves and other shut-off valves are changed, the working condition of pipelines is restored, and their specific elements are changed (if necessary). In addition, air collectors are installed and a sludge separator is installed.

The overhaul carried out by the company’s specialists will reduce heat loss during the operation of the heating system and increase its reliability. The operation of the equipment will be long and uninterrupted.

Hydraulic tests

Pressure testing is carried out within 2 - 3 days at elevated pressure.
Hydraulic tests of the heating system (pressure testing) are planned and control measures designed to check the reliability of heat exchange equipment. This action is carried out in order to detect components, equipment and communication sections that are potentially dangerous in terms of leaks. Hydraulic tests should be performed before the start of the heating season, after completion of planned or major repairs of the system.

During the inspection process, water is pumped into the pipes and air is released. Then, using a pump with a pressure gauge, a pressure of 2-6 atm is created in the circuit, which is higher than the nominal one. Signs of a malfunction are leaks and drops of water at the joints. After eliminating the defects, the test is repeated. A prerequisite is the use of hot water, the temperature of which is equal to or higher than the calculated one. The thermal test shows the true readiness of the circuit for operation.

Autonomous heating repair rules

A breakdown of an autonomous heating system cannot always be identified immediately. Emergency repair of the heating system is required only if there are obvious malfunctions - leaking radiators, pipes or boiler failure. But it is more difficult to determine a malfunction based on indirect signs.

There are several factors that indicate the need for heating repairs in a private home. First of all, a constant decrease in pressure in the system. The reason for this is a small leak. Another sign is the deterioration of the heat supply - a decrease in efficiency, uneven heat distribution. Timely repair of heating systems in a country house will help eliminate these problems.

Before restoring the functionality of the autonomous heat supply, the following actions must be performed:

Turn off the boiler. For solid fuel models, it is recommended to limit the air flow into the combustion chamber to reduce heat transfer to a minimum level.
Determine the breakdown area and block the access of the coolant in this area.
Choose the optimal technology for heating repairs in a private home. It depends on the type of failure - depressurization of pipes or radiators, failure of the boiler, expansion tank, circulation pump.
Carrying out repair work on the heating system in a private home.
Checking the functionality of the system, starting the heating.

This is a general scheme that has a number of nuances depending on the type of restoration measures. All influencing factors should be taken into account - the temperature outside, the type of coolant in the system (water or antifreeze), and the heating supply package. In some cases, it is better to make an initial emergency repair of the heating system, and then call specialists to professionally solve the problem.

To promptly repair heating systems in a country house, it is recommended to purchase kits for eliminating leaks in pipes and radiators in advance.

Improving room heating

The speed of movement of the coolant can be increased with a circulation pump.
Quite often, property owners have to deal with insufficient levels of heating of premises in severe frosts.

You can increase the efficiency of your heating system by installing the following products:

Centrifugal pump. It must be installed at the outlet by inserting into the feed.
Copper pipes with better heat transfer.
Electric or water heated floor.

In some cases, you should change the piping scheme, using a two-pipe option.

Heating repair in an apartment

Restoring the functionality of centralized heating differs from the technology described above for autonomous heating. In many cases, you cannot repair the heating in an apartment yourself, as this may affect the heat supply parameters of the entire house.

First of all, it is necessary to notify the utility services with which the heat supply contract has been concluded. It is advisable to record the fact of the accident on a photo or video camera. Then, after consultation with representatives of the management company, try to make temporary repairs to the heating supply in the apartment. It is strictly forbidden to block common risers yourself.

Upon arrival of utility services, a report is drawn up, which indicates the following points:

Possible causes of the accident;
Measures taken for emergency restoration of the heating system in the apartment;
The consequences of an emergency are damage to walls, flow, interior items. An inspection of the apartment below is required.

It is important to remember that independent heating repairs in an apartment can only be carried out with the consent of the Management Company. Exceptions are those situations when a heating supply component is replaced with similar ones without affecting the heating of the entire house.

A copy of the accident report must be kept by the owner of the apartment until the issue of compensation for the consequences of heating failure is resolved.

It's clogged and clogged.

Every heating system must have a coarse filter. A very small device with a fine mesh and a sump (installed downwards! or at least to the side) saves equipment, pumps, and the boiler from coolant contamination that will be present in any system. Wood shavings, broken threads, rust, water sediment…. everything is retained by the mesh in the filter.

The sedimentation tank must be periodically untwisted and the mesh cleaned.

If the circulation in the heating system of a private house is disrupted, then the first thing you need to do is check the filter, which should be installed on the return line in front of the boiler.

DIY battery repair

Most often, emergencies occur with batteries and heating radiators. This is due to the peculiarities of their operation. Timely repair of heating radiators will not only help eliminate the accident, but will also make it possible to use this heating element in the future.

There are a number of reasons why a radiator fails. The main one is the rusting process - the reduction of pipe walls. They cannot withstand the pressure of the system, and a gap forms. To quickly resolve the problem, you can perform a temporary repair of the heating radiator yourself. It is best to use cold welding for this. You must first check whether it is designed for use with the radiator material.

Below is the procedure for self-repairing heating batteries:

Disconnect the radiator from the general heating system.
Determine the location of depressurization and clean it of dirt, paint and grease.
Prepare hot welding solution. If it is two-component, you should act strictly according to the instructions from the manufacturer.
Repairing a heating radiator with your own hands - apply cold welding to the fabric base and wrap the leak area.
For better sealing, it is recommended to secure the patch with a mounting clamp. If this is not possible due to the design of the battery, we apply an additional layer of cold welding.

After repairing the heating battery, you can reconnect it to the general heating system. But this should be done only after the cold weld has completely dried.

Carrying out such a repair of a heating radiator with your own hands will only temporarily solve the problem. The best option for restoring the functionality of the radiator is to replace the section or use electric (argon) welding.

After completing the restoration work, remove the air plugs from the radiator by opening the Mayevsky valve.

Before the start of the season

Before the start of the season, it is necessary to regulate the system according to a certain algorithm. First, the valves at the heating system inlet are opened. Then water from the heating network is supplied to the pipelines - this happens with all equipment intended for heating.

When there is water inside the pipes, experts examine the lines for heating the lower sections of the risers. If any of the system elements gets very hot, the taps are closed. The main objective of the measures is to create the same temperature conditions for all risers operating within a particular system.

Following the risers, uniform heating must be ensured for heating equipment on each floor of the house. As in the previous case, taps in very hot areas are covered. The required temperature is controlled in the central section of the device section, which is furthest from the riser.

The study of the system is considered successful if the temperature conditions in the premises deviate from the specified value by 1-2 degrees. Otherwise, you need to carry out troubleshooting work.

When starting a system after a long period of inactivity, it may take a couple of days to a week to balance.

Heating pipe repair

Thanks to its convenient design, repair of heating pipes in an apartment or house can be carried out in several ways. The only complication is a temporary lack of coolant circulation. In an apartment building, this requires turning off the central riser. For an autonomous system, it is enough to deactivate the heating boiler.

The first thing to do when a heating pipe breaks is to protect the floor covering from moisture. You can use rags and containers for this. Then you can repair heating pipes without welding using available materials and tools. To do this you will need the following components:

Clamps. Their diameter must correspond to the cross-section of the pipe.
Rubber gasket. You can use an old bicycle tube for this.

Before performing independent repairs of heating pipes without welding, you should shut off the flow of coolant in this area. Then the depressurization area is cleaned. The next step in repairing heating pipes in an apartment is installing a rubber gasket. It is wound in several layers. The pressure should be tight and tight. Mounting clamps are used for fixation.

More efficient repair of heating pipes without welding can be done using a special kit. It includes a clamp and a rubberized gasket. It differs from homemade ones in the speed of installation and service life.

It is purchased in advance, as it is designed for pipes of a certain diameter. If the cross-section of the line is different, it is recommended to buy several different sets.

Repair of polymer heating pipes in an apartment can be carried out using a welding machine. A set of mounting fittings and a piece of pipe of this diameter must be available. To carry out restoration work, the following actions are performed:

The pipeline section is disconnected from the general pipeline;
Using special scissors, the defective area of the pipe is cut out;
A new pipeline is welded using a welding machine.

For temporary repairs of plastic heating pipes without welding, you can use a special putty. It is important to ensure that it is suitable for this type of pipe.

In copper pipelines, depressurization most often occurs at the joints. To solve this problem, you can re-solder or replace the entire section of the line.

Where can I find information?

Data on types of repairs (current and major) are contained in legislative documents:

The Housing Code of the Russian Federation briefly lists the types of services related to major repairs;
The Decree of the State Construction Committee dated September 27, 2003 contains a detailed list of major and current repairs of facilities;
Methodological manual MDK 2-04.2004 contains standards for current and major repairs and the most comprehensive list of work carried out in the event of malfunctions of general building systems.

Let us remind you that we previously covered in detail the process of applying for benefits for major repairs.

Heating boiler repair

Heating boilers are the most complex element of heat supply. It is almost impossible to restore their functionality in the event of a breakdown on your own. Therefore, before repairing diesel heating boilers or their other analogues, you should analyze all possible consequences.

First you need to check whether the warranty on the equipment is still valid. If this is indeed the case, you need to call specialists to fix the problem. Self-repair of electric heating boilers may result in premature voiding of the warranty.

But primary knowledge about the cause of the malfunction will help the specialist. You can describe the emergency situation over the phone. The company representative will take with him the optimal set of tools and components necessary for replacement.

Repair of electric heating boilers may be necessary in the following cases:

A sharp decrease in heating of the coolant;
Failure of the control unit;
Heat exchanger failure – leakage;
The influence of third-party factors that led to the breakdown - a sharp surge in voltage in the network, overheating of the coolant.

Often the reason for the repair of diesel heating boilers can be the quality of the fuel used. In this case, you can clean the injector yourself and check the primary fuel heating unit. If these actions do not solve the problem, you will have to call a specialist.

But there are a number of breakdowns that cannot be eliminated by repairing electric heating boilers. First of all, this concerns the destruction of the housing and the lack of maintainability of the heat exchanger. In these cases, it is more advisable to purchase new equipment than to repair diesel heating boilers.

After the repair is completed by specialists, a note about this fact is made in the warranty card. If the breakdown is due to a manufacturing defect in the equipment, you can request an increase in the warranty period.

How to obtain permission to install and replace a gas boiler

To obtain permission to install and replace a gas boiler, you will need to go through several stages of registration and approval of documents. Even if the installation and placement of boiler equipment is carried out without violations, in accordance with SP 62.13330.2011, registration will require material investments and time costs. Knowledge of the basic current regulations will help facilitate the registration process.

What is needed to install a gas boiler

The first stage of installation is to determine whether the room meets the minimum standards for the installation of boiler equipment.

When determining the permissibility of installing a boiler, SP 89 is taken into account.

13330 (SNiP II-35-76) “Boiler installations”, as updated after 2015, with amendments No. 1-9 (addition No. 7, published in 2012, establishes requirements for the construction of gas mini-boiler houses in a private residential building, industrial enterprises, household, public, administrative buildings).

There are several restrictions:

By type of room - installation is allowed exclusively in non-residential premises, fenced off from the rest of the room and corridor by a door. According to SNiP 2.04.08-87 (cancelled), installation in the bathroom and sanitary facilities was prohibited, but in regulatory documents under the number SP 62.13330 (SNiP 42-01-2002), this instruction is canceled.
In terms of area - as a rule, obtaining permission to install a heating boiler with an open combustion chamber is more problematic. This is due to the peculiarities of the operation of boiler equipment that burns indoor air. The standard is that the area should be at least 8 m², there must be supply and exhaust ventilation and a window with a window. To install a turbocharged boiler, it is enough that the total volume of the room is not less than 9 m³. It is allowed to cover the turbo boiler with a decorative furniture facade.

If the premises meet the requirements specified in the building codes, they begin to draw up design and other documentation.

When obtaining permission to install boiler equipment, there is a need to install a gas meter. Although this requirement is not mandatory, regulatory authorities will not issue permission to install a boiler without a meter.

What permissions are needed

Permission to use a gas boiler must be obtained from the regulatory organization operating in the given region. Usually this is Gorgaz or Oblgaz. To complete all the necessary documents, you will need to go through several stages of registration:

Specifications for connection to the gas main - the expansion will indicate that the technical conditions of the building and the parameters of the gas pipeline allow the connection of boiler equipment. To produce the specifications it will take from several weeks to a month. The document must indicate the estimated volume of gas consumed. The issuance of technical specifications is, in fact, permission to develop and manufacture a project.
The gasification project can be carried out by any specialized institution that has a license to carry out the work. In order not to encounter problems in the future, it is better for a specialist from Gore or Regional Gas to handle the manufacturing. Documentation is prepared within a period of a week to several months, depending on the specialist’s workload.
Permission to install a gas boiler is issued after approval of the documentation in Gorgaz. The following documents are submitted to the supervisory authority:
THAT.
Gas supply project and building plan.

Coordination is carried out within up to 3 months. If the organization issuing the permit considers that the technical specifications or design were not completed correctly, documentation is returned to the consumer with a detailed description of the necessary adjustments and changes.

The issuance of the result of approvals is a permit to install a gas boiler house in accordance with the existing project.

Is it possible to install it yourself?

In fact, the joint venture stipulates that installation work must be performed by a licensed and certified specialist. Few people know, but this standard applies exclusively to work on connecting to the gas main. You can connect the boiler yourself, provided you have a technical education.

When deciding to install a boiler yourself or involve specialists, several nuances are taken into account:

When installing a condensing type boiler, you will need to connect the unit to the electrical network and connect the condensate removal system without disruption.
Perform a number of approvals during installation. Additional approval of the chimney will be required when installing a gas heating boiler. The inspection is carried out by a representative of the gas industry “stove man”. During operation, such an audit will be carried out every year, before the heating season.
There is no guarantee for self-installed gas equipment. Only when the connection is made by a representative of the company selling the boiler, a stamp is placed in the document indicating the start of service.

After installation, a representative of the gas industry must check the operation of the boiler and fill out commissioning documents.

How to replace a gas boiler with a new one

It would seem that it could be simpler than replacing an already installed boiler with a new one. The design documentation has already been prepared, the specifications have been completed. But, not everything is so simple. The fact is that, according to existing requirements, replacement is equivalent to redevelopment of the premises and requires re-approval.

The re-registration process begins with an application for replacement submitted to the gas distribution organization. To obtain technical specifications, you will need to submit the following documents:

Documents evidencing ownership of the house and surrounding area.
Passport.

After receiving the application, Gorgaz will put the boiler in the queue for shutdown. Further work is performed in the following order:

Removing the old boiler.
Obtaining technical specifications.
Making a new project.
Coordination of documentation and connection.

Replacing a boiler is faster and does not require the same financial costs as when connecting a gas boiler room for the first time.

Is it possible to replace a gas boiler yourself?

It is impossible to replace a gas boiler yourself, without contacting regulatory organizations, and is punishable by a fine. In practice, a large number of owners of private houses still change their boiler equipment without approval.

After violations are identified, they simply pay a fine and pay for the production of a new project. Provided that the power of the thermal unit has not been changed upward, usually no approval will be required. Legalizing a replacement is often easier than completing all the documents in accordance with current legislation.

Is a new project needed when replacing a gas boiler?

The project specifies the model, type and power of the heating unit. In addition, each boiler has its own serial number, indicated in the technical passport and included in the project documentation. Therefore, when replacing, you will need to make a new project indicating new data.

You must go through the following registration steps again:

Obtain technical specifications for replacing a gas boiler. At this stage, the gas distribution company can change the performance of the unit based on the actual living area of the house.
Make a new project.
Obtain approval by providing a gas distribution project, technical specifications, and the results of checking the chimney duct.
Replace the old unit with a new one.

When replacing an old gas boiler with a new one, the following documents are needed:

Passport.
Documents of the owner of the residential premises.
Technical passport for gas equipment.
Technical conditions.

Standard prices for replacing already installed gas equipment are 1000-1500 rubles, depending on the region.

Is it possible to replace a gas boiler with an electric one?

Replacement is quite possible, but for this you will have to obtain permission from another organization involved in electricity supply. Documents are needed only if the electric boiler has a power of more than 8 kW. Up to this performance limit, the unit belongs to ordinary household water heating devices of the boiler type, therefore, it is installed without permits or approvals.

For productive electric boilers, a separate power supply line will be required. You will need to make a project and obtain permission to increase the amount of electricity allocated. Separately, you need to write a statement about disconnecting the gas boiler from the main line.

Installing a boiler without permission is a strict violation of existing standards and is equivalent to redevelopment of a residential premises. This omission is punishable by penalties imposed after they are identified during the next inspection by gas workers.

Serious violations lead to gas supply being cut off. After paying the imposed fines and correcting the identified defects, the equipment is allowed to be put into operation again.

Repair of circulation pumps

To increase the speed of movement of the coolant in the heat supply, a circulation pump is installed. Its breakdown will not only worsen heat transfer, but will also negatively affect the performance of the entire system.

Despite the apparent complexity of the design, you can repair the heating pump yourself. To do this, first determine the cause of the problem and develop the optimal scheme to eliminate it. Before repairing the heating circulation pump, you should turn off the system and wait until the coolant cools down. This can be avoided if a bypass is installed on the pump unit. It is enough to redirect the movement of hot water along the spare circuit.

Self-repair of heating pumps is carried out only after detailed familiarization with the design features of a particular model. Then the device should be dismantled to further restore functionality. There are several causes of malfunctions, after identifying which repair work on the heating pump is carried out with your own hands.

Let's look at the most common of them, as well as ways to solve the problem:

The power plant does not work. First you need to check the condition of the terminals - the fuse on them often blows due to power surges in the network. The solution is to replace the fuse;
Increased noise during operation. To repair heating pumps in this case, it is necessary to remove air from the pipe. It is best to install an automatic air vent in advance;
Strong vibration during operation. Most likely the bearing on the shaft has failed. To repair the heating circulation pump, you will need to replace it;
Incorrect blade rotation. The connection phase should be checked, as well as the correct installation of the pump;
A little pressure. Most often this is due to a clogged filter. In this case, it will not be necessary to repair the heat supply pump, but to clean the filter.

After long-term operation, some pump components lose their hermetic properties - the geometry of the impeller and shaft changes. To repair a heating circulation pump, the condition of these elements is first checked. Almost all models are designed to replace components. But before purchasing, you need to select the right components, writing down the brand of the pump and its model.

There should be a sealing lubricant on the gaskets and pipes of the pump. If it is missing, it must be reapplied.

Problems and solutions

Emergency repairs

Let's take a look at the most common problems faced by emergency locksmith teams and their typical solutions.

There is no heating through the riser. The work begins with checking the condition of valves and discharges: often the cause is uncoordinated repair work carried out by residents and hired workers. If they are in working position, the risers are moved to discharge in both directions to localize the problem.

The cause is often a piece of slag in a pipe bend or a stuck screw valve. Finally, if water passes freely through the riser, you just have to go up to the top floor and bleed the air there.

Fistula in the heating pipe. If there is no threat of complete destruction of the riser or liner, the emergency crew simply applies a bandage, eliminating the leak. Welding work is carried out by a maintenance team.
The locknut in front of the radiator is leaking. When the riser is dropped, the threads are rewound. If it is destroyed by corrosion, the connection on the liner is replaced by welding or manual threading.
Heavy leakage between sections of radiators. Its cause can only be a burst nipple. After resetting the risers, the radiator is dismantled and rebuilt.
The flush valve does not close after flushing the radiator. The riser is reset, after which the gasket on the tap is changed.
The entrance heating has been defrosted and hot water is supplied to the entrance. After disconnecting the riser, the damaged sections are dismantled, and the remaining part of the radiator is started. If necessary, the emergency service performs welding work to restore connections, registers, etc.