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Need to replace your gas boiler? This decision is made for various reasons, but if you are thinking of doing the work yourself, then our article will help you. We will tell you what standards to comply with, what documents to collect for the effective replacement of old heating equipment.
Why is it being replaced
During the operation of the boiler, its power and efficiency level gradually decrease. The equipment is outdated and no longer meets modern standards.
The most common reasons for replacing equipment:
- The performance of the boiler is no longer satisfactory. If you made an extension or connected additional devices to the circuit (for example, a boiler), then the old unit may not pull the load.
- Inappropriate functionality. Installing a double-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%.
- Depreciation or breakdown of equipment.
Therefore, if your old AOGV is working “on its last breath”, if the cost of maintenance is equal to buying a new device, then a replacement is a must.
What designs does the market offer?
- With closed combustion chamber. This is a safer variety, because the burner is closed from external influences. Smoke is removed by a fan. The connected coaxial chimney contains two tubes through which air enters and fumes are removed. Requires a network connection.
- With open chamber. An open burner requires air to be drawn from the room to maintain the flame. Good ventilation and connection to a chimney 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 installation of equipment with an open combustion chamber, it is necessary to have a window with a window and an area of the room from 8 m². For closed devices, the requirements are only in terms of volume – from 9 m².
How to arrange the installation and collect documents:
- Write an application to the gas service for a permit.
- Get a list of specifications. If it turns out that only the equipment changes, then the project remains the same. If the installation site changes, the communications scheme changes, then a new project is being developed. To do this, you need to contact a company with a license.
- Take a construction passport from the replacement company. With it, an act on the condition of the chimney channels, an act on the conformity of equipment with standards, contact the gas inspection.
- Dismantling, installation, commissioning.
You can do the collection of documentation yourself or give an order to a special service.
Is unauthorized installation of equipment in a private house or apartment allowed?
Do-it-yourself installation is not prohibited by documents. Only unauthorized connection to the gas main is not allowed. The rest of the work the user can perform with the skills.
When connecting gas without approval, you face a fine of 10 to 000 rubles (under Article 15 of the Code of Administrative Offenses of the Russian Federation). This does not frighten many consumers: they carry out installation without authorization, and then pay a fine. But you should understand that you are endangering not only yourself, but also your neighbors.
What steps should be taken when replacing:
- For the organization of condensing boilers, a connection to the network is required, the connection of a system for removing condensate according to the rules.
- Before switching on, you will need to agree on the condition of the chimney. The inspection is carried out by a gas service specialist. After that, such an audit will be carried out once a year.
- You won’t get a warranty if you do it yourself.
Dismantling and installation of wall and floor equipment
Before dismantling the device, flush the heating system so that accumulated dirt does not block the operation of the new device.
Then:
- Drain the water from the boiler.
- Disconnect the appliance from gas, heating and water.
- Disconnect the flue pipe from the shaft outlet or ventilation.
- Remove the case from the wall or dismantle it from the floor and put it away.
How to replace the device with a more powerful one:
- With wall-mounted equipment (“Bosch”, “Ariston”), make markings on the wall. Attach the plank. Then hang the structure on the brackets or anchors. Check the location with a level – the case must be located 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 asbestos sheet.
- Water communications are connected through a mesh filter that traps small particles of debris from the water supply. Additionally, you can install a water purification filter from impurities, so you reduce the likelihood of scale deposits. Taps are mounted on both sides of the filter. So you can clean the part without draining the water.
- The connection to the gas pipeline is in progress. At the same time, there must be free access to the shut-off valves.
- If this is a turbocharged device, then connect it to a 220 volt network with grounding. Watch out for polarity. It is recommended to install a voltage stabilizer.
- For a closed type, the procedure for creating a chimney is as follows: a coaxial chimney is connected to the new branch pipe of the product, the other end is led out into a hole in the wall, a ventilation duct. This is the same principle of organizing a conventional chimney. In this case, steel pipes are used.
- Fill the system with water. First, turn on the 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.
- Check connections for tightness.
- The launch must be carried out by an employee of the company. After that, the equipment is put into operation.
Carry out the work on your own or turn to specialists – it’s up to you. Even with unauthorized installation, you will have to commission and test the device.
Watch a helpful video on the topic: