Need a gas boiler replacement? This decision is made for various reasons, but if you are planning to carry out the work yourself, then our article will help you. We will tell you what standards to follow, what documents to collect for the effective replacement of old heating equipment.
Why is replacement
During operation of the boiler, its power and efficiency level are gradually reduced. The equipment is becoming obsolete and no longer complies with modern standards.
The most common reasons for replacing equipment:
- Boiler performance no longer suits. If you made an extension or connected additional devices (for example, a boiler) to the circuit, then the old unit may not pull the load.
- Inappropriate functionality. The installation of a dual-circuit device instead of a single-circuit one allows not only to heat the room, but also to use hot water supply (DHW).
- Questions of rationality. Standard boilers consume a lot of gas. But more modern, condensing devices use not only gas, but also steam. This approach increases efficiency by 110%.
- Wear or breakage of equipment.
Therefore, if your old “AOGV” works “on the last breath”, if the cost of maintenance is equal to the purchase of a new device, then replacement is simply necessary.
What designs does the market offer:
- With a closed combustion chamber. This is a safer variety, because the burner is closed from external influences. Smoke exhaust due to the fan. The plug-in coaxial chimney contains two pipes through which air enters and a cinder is discharged. Requires a network connection.
- Open camera. An open burner requires air to be drawn from the room to maintain the flame. Good ventilation and connection to a chimney shaft are required.
What you need to replace in 2018
If you plan to install a new boiler in another room, consider the following requirements:
- Installation is allowed only in non-residential premises with a door.
- For the installation of equipment with an open combustion chamber, it is necessary to have a window with a window and a room area of 8 m². For closed devices, the requirements are only in volume - from 9 m².
How to complete the installation and collect documents:
- Write an application to the gas service for permission.
- Get a list of specifications. If it turns out that only equipment is changing, then the project remains the same. If the installation location is changing, the scheme for summing up communications, then a new project is being developed. To do this, contact the company with a license.
- Take a building passport from a replacement company. With it, an act on the condition of chimney channels, an act on the compliance of equipment with standards, contact the gas inspection.
- Dismantling, installation, commissioning.
The collection of documentation can be done independently or give an order to a special service.
Is unauthorized installation of equipment in a private house or apartment allowed?
DIY installation is not prohibited documented. Only unauthorized connection to the gas main is not allowed. The rest of the work, the user can perform in the presence of skills.
If you connect gas without approval, you will face a fine of 10,000 to 15,000 rubles (according to Article 7.19 of the Code of Administrative Offenses). This does not frighten many consumers: they carry out installation unauthorized, and then they pay a fine. But it’s worth understanding that you endanger not only yourself, but also your neighbors.
What actions must be carried out when replacing:
- For the organization of condensation boilers, a network connection is required, a system connection for condensate drain according to the rules.
- Before turning on, you need to coordinate the state of the chimney. The check is carried out by a gas service specialist. After that, a similar audit will be conducted once a year.
- When carrying out independent work, you will not receive a guarantee.
Dismantling and installation of wall and floor equipment
Before dismantling the appliance, flush the heating system so that accumulated impurities do not block the operation of the new device.
Then:
- Drain the boiler.
- Disconnect the appliance from gas, heating and water.
- Disconnect the flue pipe from the shaft outlet or ventilation.
- Remove the housing from the wall or remove it from the floor and remove.
How to replace the device with a more powerful one:
- With wall-mounted equipment (Bosch, Ariston), make markings on the wall. Attach the bar. Then hang on the brackets or anchors. Check the location with a level - the case must be placed strictly horizontally. A solid foundation is being prepared for the Baksi outdoor unit.
- Keep a distance of 30-50 cm from the wall. If the wall is made of combustible material, insulate it with a sheet of asbestos.
- Water communications are connected through a strainer, which traps small particles of debris from the water supply. In addition, you can install a filter for cleaning water from impurities, so you reduce the likelihood of scale deposits. Cranes are mounted on both sides of the filter. So you can clean the part without draining the water.
- Connection to the gas pipeline is in progress. At the same time, shut-off valves must be freely accessible.
- If this is a turbocharged device, then connect it to a 220 Volt network with ground. Watch for polarity. Installation of a voltage regulator is recommended.
- For a closed type, the procedure for creating a chimney is as follows: a coaxial chimney is connected to a new pipe of the product, the other end is discharged into the hole in the wall, the ventilation passage. This is the principle of organizing a conventional chimney. In this case, steel pipes are used.
- Fill the system with water. First let current through the heating circuit, and then open the valve of the boiler itself. Watch the pressure, the norm is from 0.8 to 1.8 bar.
- Inspect connections for leaks.
- The launch should be carried out by an employee of the company. After that, the equipment is put into operation.
To carry out work on your own or to turn to specialists is up to you. Even with unauthorized installation, you will have to put the device into operation and inspect.
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