As the heating equipment is operated, it will wear out, which may eventually require replacement of the boiler. There may be many reasons for this, but the most common is obsolescence of the equipment or a decrease in its efficiency, as a result of which the heating efficiency of housing falls, and the size of utility bills increases. Therefore, every person who has autonomous heating installed at home should know how to replace the boiler with their own hands. We will talk about this further.
Types of gas boilers
Before we talk about how a gas boiler is replaced in a private house, let's look at what types of this equipment are.
All existing models of gas-fired boilers are divided into two types:
- closed-type boilers: the burner is located in the combustion chamber, and fresh air and combustion products are discharged through a coaxial pipe;
- open type boilers: the burner has an open arrangement, so that air is supplied naturally from the room.
In addition, heating equipment is divided into single and double circuit. The former are designed exclusively for home heating, while the latter are also capable of heating water to meet everyday needs.
Permits
The replacement of the boiler in a private house, as well as its maintenance and repair, can be carried out exclusively by employees of the relevant state bodies. This is due to the fact that gas heating equipment can pose a threat to human life.
In addition, the following documents will need to be prepared for replacement:
- a document confirming the compliance of the boiler room with all safety standards;
- DCK verification certificate;
- documentation for heating equipment;
- warranty service agreement;
- the design of the premises, as amended.
When all the documents are in your hands, you can go to gorgaz to get permission to replace heating equipment.
Dismantling the old boiler
Replacing a gas boiler in a private house begins with the dismantling of old equipment. You can do this yourself, because the legislation allows you to perform such work without obtaining permits.
Before disconnecting the equipment from the heating system, it is necessary to flush it. This is necessary in order to clean the pipes from contaminants that accumulate in them over the long years of operation of the boiler.
Dismantling is carried out in the following sequence:
- water comes down from the system;
- the equipment is disconnected from the gas and the water supply system;
- if you have closed equipment, it will also be necessary to disconnect it from the ventilation system.
After that, it will be possible to start connecting new heating equipment. Gorgaz employees can also dismantle, but in this case, replacing the boiler will require a lot of labor and time.
Boiler room requirements
According to safety rules, gas heating equipment must be installed in a separate room with an area of at least four square meters. In addition, a good ventilation system must be equipped in the boiler room. The place for
installing the boiler should be selected smooth and heat resistant.
Equipment should be installed in a place to which there is free access. If it is suspended, then special brackets are used for mounting on the wall.
If you live in an apartment, and you do not have the opportunity to allocate a separate room for the boiler, then it is not recommended to install it in the bathroom due to high humidity.
What will be required for replacement?
Replacement of gas boilers requires the following equipment, components and tools:
- new gas boiler;
- bracket for hanging on the wall;
- ball valve - 3 pcs.;
- filters for water purification from impurities and debris - 3 pcs .;
- gas valve;
- gas meter;
- KTZ;
- gas alarm;
- three-core valve;
- Voltage regulator;
- UPS
- anchor;
- metal sheets;
- requirements for connecting the boiler to gas and water supply;
- building level.
You can buy everything you need in any specialized store that sells heating systems.
Hardware replacement process
Replacing a gas boiler in a house begins with an application to the appropriate authority. If you will install a similar model of equipment, then making changes to the project is not required. If the boiler is more modern or it will be installed in a new place, then a new project is mandatory.
When gorgaz issues a permit, you will need to contact the company that will be involved in the installation of new equipment for a construction passport. This document must be submitted to the gas company along with the package of documents discussed earlier in this article.
It is important to understand that the company that will install the new boiler must have a certificate authorizing the execution of this type of work. In order for the boiler to be replaced in accordance with all safety rules and regulations, you must be familiar with the installation technology.
Boiler Installation Instructions
If you have suspended equipment, the first step is to install the bracket. An anchor with a firm fit is used to secure it. In order for the boiler to hang evenly, it is recommended to use the building level when performing work. If the walls in your home are made of flammable materials, then they are sheathed with metal sheets. If the heating equipment is of the floor type, then no additional measures are required during installation. It is simply installed in a prepared place. It is worth noting that if there is any other gas equipment in the boiler room, then there must be at least 20 centimeters between it and the boiler.
It is necessary to connect to the water supply system through strainers, which will prevent debris from entering the heat exchanger. In this case, the pipes should be connected to the equipment through a ball valve. It is also recommended to use a special filter to purify water from impurities. This will extend the life of the equipment.
Connection to the gas pipeline is through a special valve, gas meter and thermal shutoff valve. Also, a gas alarm should be installed in the boiler room .
If the boiler involves connecting to an electrical network, then a three-core cable with a plug is used for this. In this case, the outlet must be grounded. It is recommended to use a voltage regulator equipped with an autonomous power supply for connecting. This will protect the boiler from failures in the power supply system.
If you have closed heating equipment, then it must be connected to the ventilation system. This is necessary to remove combustion products from the boiler. A coaxial pipe is used for connection , which will be responsible not only for the emission of carbon monoxide, but also for supplying fresh air to the combustion chamber.
At the final stage, after connecting the equipment to all communications, the heating system is filled with water and the equipment is checked for operability. This is how any type of boiler is replaced, regardless of model.
Possible consequences of self-replacing the boiler
If you decide to replace the equipment yourself, then in this case you may encounter very serious problems. At the same time, you not only risk your own safety, but also have to pay a large fine. If, after connecting the boiler to the gas pipeline, a leak of blue fuel is detected that will lead to a fire, then all responsibility for what happened falls entirely on you. Therefore, it is not worth the risk, but it is better to contact the appropriate authority.
Conclusion
In this article, the procedure for dismantling the old and installing new heating equipment was fully considered. It is mandatory in the case of maintenance and repair. For example, if you need to replacing the boiler heat exchanger, you will also be required to call qualified specialists who are authorized to perform such work.
But if you still decided to replace the equipment yourself, then be sure to adhere to special instructions and follow safety precautions.