Do I need a project to replace a gas column. Installation of a gas water heater: repair, price, in the apartment.
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.
Types of columns and boilers for apartments (including Khrushchevs)
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. How many sockets you need in the kitchen can be found here.
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 26-28 kW is suitable for duplex apartments or houses. You can find out what kind of kitchen hoods by clicking on this link.
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. They pay extra separately 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.
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 the equipment while maintaining the previous installation location.
Application for permission to work on the gas main.
Gas connection
If the gas column is installed for the first time or in a new place, then a gas pipe is supplied to it. These works are performed only by specialists of the gas service who have permission to do so.
An application for the execution of the tie-in is left, and the wizards are invited.They will embed a tee in the gas pipe from the inlet to the stove. A pipe is mounted to the tee and led to the installation site.
There are two options. Knowing the exact model of the gas column and its position, the pipe is brought exactly to the connection point in order to avoid the use of a flexible hose. Note that there is a gas shut-off valve in front of the connection to the column. First, the column is mounted on the wall, and after that the gas pipe is supplied.
However, it is easier to bring the pipe edge to a maximum distance of half a meter to the installation site and finish the route by installing a gas valve. The use of a flexible hose subsequently gives more freedom when installing the column, which is especially important for self-installation.
This option will eliminate the need to rely on the schedule of the gas service masters, and perform most of the work at a convenient time for you.
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 mounts.
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
package quality
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
List of documents on regulations
The list below is approximate and as complete as possible, but it depends on the region. In addition, if the connection is not happening for the first time, some documents may already be in the relevant services or be in the hands of the owner of the apartment building / in the housing office. How to make an air duct for a kitchen hood can be found in this article.
A copy of the deed of ownership of the house or apartment or similar document proving that you are the owner.
Copies of a civil passport (pp. 2,3 and 5).
Copies of the taxpayer certificate (TIN).
Permission to process personal data.
Gas buyer passport.
His letter about the conclusion of a work contract.
Maintenance contract for fire hazardous equipment.
Technical specifications for connection to gas, issued by the distributor or supplier.
Documents on the implementation of TU (Acceptance certificate of the gas distribution system object (copy) and others).
List of equipment using gas, its characteristics, copies of technical data sheets.
A copy of the deed on the division of ownership between the owner of the house and the distributor.
Copies of passports for the gas meter, additional sensors, if any, and certificates of passed verification.
A copy of the page of the gasification project with the stamp of the metrological department of Gazprom.
How to build a gas water heater in an apartment:
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 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:
Choosing a location for installation
By default, a gas water heater is installed in the kitchen. In all projects of houses, where it was initially planned to install the column in the kitchen, a chimney with a diameter of at least 120 mm or its equivalent required by the rules, as well as a ventilation system for constant air access, was provided. When replacing an old column with a new one, it is better to leave everything in the same place.
However, new models of gas instantaneous water heaters can not only get along with high humidity in the bathroom and do without a classic chimney.
To install them, you only need to lay a coaxial pipe on the street, through which fresh air will flow into the closed combustion chamber and the combustion products will be discharged.
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.
Cost in an apartment and a private house
Even when choosing a column and the store in which it will be purchased, pay attention to the availability of an installation service. Even if it is paid, its cost may be lower than market value. In many large supermarkets and specialized stores, installation is included in the price of the equipment and will be even cheaper. It is often marketed as free.
Another option is to contact the service center, where a contract for the maintenance of gas equipment will be concluded, and to order installation. In this case, the least of all you will have to worry about the quality of the work, because the service cannot spoil the relationship with the customer, with whom it has yet to cooperate throughout the entire life of the column.
The table presents approximate starting prices for service centers to perform a number of works on the installation and connection of a gas flowing water heater.
Type of work
Cost, rub
Connecting a speaker of domestic production
1500-2500
Connecting an imported speaker
1700-3000
Installation on a prepared base
1100-2300
Replacement and dismantling of old equipment
1900-4500
Installation of a gas water heater from an imported manufacturer (full range of works)
1800-4500
Gas water heaters are an invariable attribute of Soviet cuisines in many cities. If there is no hot centralized water supply, they are an opportunity to quickly warm a large amount of water. Today, they have been mainly replaced by gas boilers, but the requirements for installation, the necessary documents and inspection authorities have remained the same.
Instruments
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 tape or tow
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.