Important nuances
- The installation of a gas heater should be carried out by professionals who know how to work with gas equipment.
- If the water heater is in the bathroom, and it often happens in old houses built in the 50-60s, it is not necessary to move it, although the installation of new columns in such a room is not recommended due to insufficient volume (it should be at least 15 m3) and the absence of a window.
- It is important to make sure that there is sufficient ventilation in the room.
- If you want to hide the new column behind decorative panels, you should make sure that they are non-flammable and can be easily removed.
When heaters are not allowed to be installed in an apartment or house
- If you live in a one-room apartment, where a living room with a kitchen is combined. The kitchen should be a separate area.
- If you want to install a gas heater in your living room, bathroom or loggia / balcony.
- If the door to the kitchen is deaf, there is no ventilation slot.
- If the length of the water and especially gas hoses is more than 2.5 m.
- If a gas stove or other open flame is close to the boiler.
- If you plan to hang the heater on a wall adjacent to the living room.
How to create autonomous heating in the kitchen, video:
Boilers and water heaters allow you not to depend on the whims and standards of warm water suppliers, provide a comfortable, normal water temperature at any time of the year. Although the requirements for their installation may seem too strict, this is for the safety of residents. It is better to immediately install the equipment correctly and according to the norms, than to pay later for its transfer and reconnection of gas. What filters are needed for water purification in a private house can be found here.
How much does the replacement cost and what does the cost depend on?
On average, you need to pay about 3000-5000 rubles for installing a column.
Depending on the model and manufacturer, the price can be either lower or higher. Separately, they pay extra for dismantling the old apparatus (it costs about 300-800 rubles).
The cost of replacing a column includes calling a specialist home to disconnect the equipment from communications, dismantle the column, and install and connect a new device. Also, the master takes a fee for the work on setting up the column.
The cost of work will be higher if:
- You need to additionally buy any materials for installation.
- Additional plumbing work needs to be done.
- The chimney needs to be replaced.
- The gas valve needs to be replaced.
Water connection
Now a pipe with cold water is supplied to the column, and hot water is distributed around the house. It is better to connect to a water heater with an American, a connection with a movable union nut.
For cold and hot water on the lines, be sure to install shut-off valves - ball valves.
The cleaner the water, the longer the heat exchanger will work without blockages and scale.
Pipes are supplied with one of the following options:
- Lead pipes less than 30 cm to the column and connect using a flexible hose or copper / brass tubing;
- Direct connection of metal-plastic pipes, polypropylene or steel, depending on the material with which the main wiring is made.
Required Documentation
If a new column is installed to replace the old one, the following documents are required:
- A copy of the project from the housing office, which shows the location of the column, the features of gas and water supply, as well as smoke removal.
- Passport for a new column. If the device has not been purchased yet, you can simply indicate the model.
- Chimney condition report.
- Application to the gas service about the need to replace equipment while maintaining the previous installation site.
- Application for permission to work on the gas main.
Installation Algorithm
The installation of the gas water heater must be carried out by specialists.
The documentation is regulated by the law on the supply of gas to the population. The list differs depending on whether you are changing only the model, device and location, or if you are installing the equipment for the first time.
Model changes
The column becomes obsolete over time and can be upgraded by replacing it with a more modern one
- Buy certified gas heater
which is allowed to be installed. - Take certified copies of the gas and water supply system diagrams from the housing office with a clearly marked place for the installation of equipment.
- Then take application for replacement, provided that the installation site is retained in the gas service
, there are also statements about the repair of water and gas pipelines at the site. - The work will be done by the gas service, it will also give the Act on putting the equipment into operation, in accordance with the requirements.
Change of device and installation location
How to install a gas water heater video master class:
- You will need change the scheme of supplying gas, water, air outlet
. - Go to the fire department to get the Chimney Condition Report.
- Order a transfer project from GORGAZ or a private certified organization, get it.
- An apartment building will need a redevelopment permit from the city administration
. - You must have an act, a project, a permit, a technical passport of a boiler or a column, a document confirming the ownership of an apartment. With these documents and the application, contact the gas service again.
- The specialists will install and connect the equipment, carry out the first start-up. Then they will seal the meter, issue a Commissioning Certificate.
- At the end, you should have in your hands acts that confirm from the fire inspection, technical supervision, about the input. Information about the transfer is additionally submitted to the BTI.
First installation
To install a gas water heater, you need to collect a lot of documents.
If gas is not supplied to the house, it will be necessary to build a gas supply line. This is an expensive process, and many private home owners choose to get by with solid fuel boilers. For multi-apartment buildings, the gas supply is carried out by the developer, the housing office, or by the owners jointly.
It is a little problematic to place a column in a small kitchen, since any centimeter counts
- Obtaining documentation
includes consent for gas supply from distributors and conveyors, calculation of consumption, obtaining technical conditions, permission for land allocation for a gas pipeline. - Design
consists of the conclusion of a project contract, collection and examination of documentation, approval by the authorities listed in the previous paragraph. - Building
consists in construction and installation work and commissioning. - At the end is contract
on gas supply in GORGAZ or OBLGAZ.
Dismantling the old column
Column replacement work begins with dismantling the old equipment:
- First, turn off the gas supply and unscrew the gas hose.
- Next, shut off the water supply by turning on the appropriate tap.
- After that, the column is disconnected from the chimney.
- As soon as the equipment is completely disconnected from communications, the column is removed from the mountings.
Taking into account the regular breakthroughs and preventive work with hot pipelines, the purchase of a gas column would be a rational solution. In addition, this method of obtaining hot water in the end, when calculated in detail, turns out to be very profitable in financial terms. This can be explained quite easily: gas tariffs are much lower than hot water.
Approach the decision on purchasing a gas water heater taking into account several criteria of a quality and technical nature.Among the qualitative indicators, we note:
- manufacturer reliability
- quality of equipment
- build quality.
Important! Choose equipment of proven brands, with a worthy warranty term and the presence of appropriate certificates. Otherwise, very sad consequences are possible, with a threat to your life in case of failures during operation.
Specifications
Video
Start-up and commissioning
Before starting the column, all connections are checked for leaks, make sure that water does not leak anywhere and the gas does not poison. You can check the connections on the gas pipe with soapy water. When all the connections have already been completed, the joints and fittings are moistened with soapy water, and then the gas supply valve is opened. If there are no bubbles, then the line is sealed.
The necessary work to start the column is carried out according to the manufacturer's instructions and strictly in the specified sequence for the first start. It is better to entrust the adjustment of the burner to a specialist.
The main task is to determine the optimal gas pressure by twisting the adjusting bolt, and by adjusting the gate - the air supply. Adjustment is almost impossible without a pressure gauge. It is important to know exactly the pressure in the gas pipe during idle time and with the column turned on at maximum. In the dynamics, the pressure should not exceed the permissible threshold set by the manufacturer for this water heater.
Setting up a hydrothermal control unit comes down to setting the optimal values for the maximum and minimum water temperature at real pressure values, which is very different for different houses and apartments.
What is the complexity of the process of installing a gas column?
The installation process itself does not require excessive efforts. Expect a large investment of time when collecting the required accompanying documentation.
Rules for installing a gas column
To avoid problems with further operation, you will need not only strict adherence to the technical part of the installation process, but also preliminary design of the location of the column, certification of the plan and the work performed by special authorities - GorGaz, firefighters, City Administration, technical supervision.
The sequence of actions for registration of documentation
Important! When you change the location of the column, as with the first installation, the process of collecting documents will be more time consuming and painstaking than when replacing the old device with the preservation of the previous project.
List of documents
After receiving confirmation, you should have the following package of documents:
History of the issue
Gas water heaters were installed in communal houses during the construction of buildings such as "Khrushchev" and the like. The sixties were the heyday of such construction.
The basis for the installation of gas water heaters was a typical construction project of a house. The project provided for gas supply schemes, water supply and installation of smoke ducts, the procedure for the installation and operation of gas appliances.
With the introduction of the house into operation, he moved to the balance sheet. The inactivity of the zheks in the renewal of gas appliances, the service life of which had expired more than once, forced them to look for a way out.
A gas water heater between the ages of 40 and 50, by definition, should not work. Even the German column "JUNKERS" has a resource of up to 12 years.
There is a forced amateur replacement of speakers. Not always, or rather mostly, with violations of all established rules.
But the rules require project documentation, plus certificates and the required amount of work, that is, investing a lot of money.
Standards for installing a gas column
To date, all work processes for the installation of this type of equipment are regulated by the following acts:
- Gas distribution systems - SNiP 42-01-2002
- Items "General provisions for the design and construction of gas distribution systems from metal and polyethylene pipes" - SP 42-101-2003, which relate to the description of the processes of working with pipes during installation
- Gas supply - SNiP 2.04.08-87.
Tools
To complete the work, prepare the following set of materials and tools:
- the certified unit itself with instructions
- drill
- Adjustable wrench
- open-end wrench - 27/30, 32/36
- FUM or tow tape
- PVC water pipes or hoses, with an inner diameter of 13 mm, and the length - no more than 2.5 m
- metal-plastic pipes for gas
- gas hose
- fittings - "American" and for metal-plastic
- fastening clips
- gas taps
- water tap
- pipe cutter
- soldering iron
- filters - magnetic and salt
- Mayevsky crane
- dowels.
When removing combustion products through the chimney, purchase:
- corrugated or galvanized pipe with a thickness of 1 mm, the diameter must match the diameter of the boiler inlet on the column (see the exact parameters in the instructions)
- rosette ring for chimney design (dimensions must match the dimensions of the corrugation).
Dismantling the old column
When replacing equipment, pre-dismantle the old one, following the instructions below.
Sequencing
- Close the valve on the gas pipe, excluding the flow.
- Unscrew the nut securing the hose with a suitable wrench.
Important! To prevent damage to the gas pipe, hold it with a second wrench.
- Remove the hose from the entry point.
- Check the condition of the hose - if it is satisfactory, use it for further operation of the new column.
- Turn off the water supply taps at the entrance to the column.
Important! If these have not been installed before or are installing new equipment, buy taps in advance and install them at the inlet and outlet of the pipeline to the device.
- Remove the pipe connecting to the chimney.
- Take it out of the chimney.
The last steps apply only to the type of column in which the combustion products are removed through the chimney.
Types of columns and boilers for apartments
If we talk about gas heaters, they can be flow-through and storage. But in Russia, gas boilers are not widespread, because they are less convenient, more expensive and take up a lot of space. They should only be installed if the gas supply is too weak. Basically, flow gas heaters are installed.
It is not easy to build in a gas column: you need to comply with safety requirements and you want to beautifully fit into the interior
Modern models can have a closed or open combustion chamber. Open ones are slightly safer and require less paperwork to install. They are needed if there is no chimney in the house. The latter are suitable if the old heater is being replaced with a new one, the chimney and gas supply have already been made and checked.
Vendors offer 3 types of power. 17-20 kW are needed for a one-room apartment with 1 occupant.
If a person takes a shower, there is no longer enough power for washing dishes. Devices with a power of 20-26 kW are indispensable for apartments. They provide 15 liters of water per minute at a temperature of 40 degrees. The capacity of an average heater is sufficient for a family of 4 and an apartment with 1 shower and 2 sinks. Power of 26-28 kW is suitable for duplex apartments or houses.
