Water heaters are distinguished by the energy resources they consume. In everyday life, only geysers and electric boilers are used. If the water heater is replaced, a device with the same energy resource as the previous one is installed. Installation of gas water heaters, as well as any devices with such a power source, requires the intervention of the appropriate services. Operating costs are significantly lower since electrical appliances are more expensive to use.
Storage water heaters
A storage-type household geyser copes with heating water in the best possible way. There are floor-standing, flat and horizontal devices. Thanks to several available options, you can select an installation that fits into the interior and dimensions of the room. When designing a water heating system, air flow methods must be taken into account. Forced draft is created when devices are connected to a pipe exposed to the street. Natural draft requires a continuous supply of air and connection to the general
Instantaneous water heaters
Installation of flow-type gas water dispensers is carried out most often in Russia. The average price of such units on the domestic market is 15-20 thousand rubles. Once upon a time, there were minor difficulties with the operation of these devices. It was necessary to monitor the flame so that it did not die out and regulate the gas supply manually. Modern analogues are much easier to operate and pose less danger.
Installation rules
Each installation of such devices must be coordinated with gas services. To install speakers with an open chamber, there are technical conditions that must be observed. It will be very difficult to install the unit yourself if it has not been installed before. It will be necessary to connect to the main gas and water pipelines. For this reason, instantaneous water heaters are installed in the kitchen. But at the same time, it cannot be installed above a gas stove. The main requirement for installation is the presence of special hoods. Previously, such speakers were installed in bathrooms.
Replacement
You can always exchange an outdated copy for a new one. To install instantaneous gas water heaters in apartments and private houses, it is necessary to observe the basic points: connection to the water supply and gas pipeline, installation of the hood. If the column has already been installed, then all of the above rules were followed previously. All that remains is to simply install another new unit.
Disconnect from gas and water
To dismantle an outdated unit, access to gas and water is blocked using valves. First, unscrew the gas hose nut using an adjustable wrench. A metal tube can be installed instead. After this, the hose is unscrewed from the column. If the hose is intact, you can use it again. At the same time, you should not save on buying a new one. A low-quality hose can be much more expensive. After access to water is blocked, the column can be disconnected from the water supply.
Chimney dismantling
After the pipe connecting the unit to the chimney is removed, the water heater can be removed from the mount. Before installation, you need to make sure that the old fasteners fit the new device.
Hanging the unit
Installation of gas water heaters requires compliance with certain proportions. In the room, the ceiling height should be more than 2 m. The vertical of the pipe in the chimney should not be less than 50 cm. When the ceiling height is 2.7 m, the pipe can be 25 cm larger.
Connection
After the column has been secured using hoses or PVC pipes, you can connect it to the water supply system. Next you need to check the unit for leaks. If necessary, tighten all the connection nuts. The column is connected to the gas pipeline with a high-quality new or old hose. After crimping, the entire liner must be treated with a soap solution in order to detect bubbles and determine the reliability of the connection.
First installation of a geyser in a private house
If the installation has not been carried out previously, additional, more complex work will need to be done. In addition to the usual rules, you need to take into account that the wall on which you plan to hang the unit must be made of non-combustible material. The minimum water pressure in the pipes is 0.1 atmospheres.
Hood
The rules for installing a geyser require choosing a suitable location for the hood. If the room has a chimney or fireplace, you can use this ventilation space. Otherwise, you can make a hole in the cover and insert it about 2 m long. Installation is best done near an internal wall. In the absence of an outlet channel, an outlet pipe for gas water heaters is used.
We fix the unit on the wall
The gas water heater in the apartment is installed directly under the pipe. The unit must be installed at a height inaccessible to children. At a suitable level, holes are drilled into which fastening elements are inserted, and then the column is screwed to the wall. Using a flexible corrugation, the unit is connected to one end of the corrugation is attached to the previously prepared hole, and the other to the column.
Connecting the device
To connect to gas, a tee is cut into the pipe. This can be done using gas welding. If there is a threaded connection, the tee can simply be screwed in. Then you need to attach the gas screen. Now you need to mark the distance between the pipe and the column. At the point where the supply line passes, fastenings are cut into the wall. With their help, the pipe will hold more securely. For these purposes, special clips with latches are used. The pipe is connected to the column using a fitting.
Connection to water supply
Installation of gas water heaters involves a similar insertion of a tee into the water supply pipe. In the same way, holes are drilled in the wall for fastenings. The Mayevsky tap can be installed and used to regulate water pressure. Magnesium and salt filters are mounted next to the column.
First start
You can carry out a test run after the geyser has been installed. The price for heating with electricity is much higher, so boilers are used less often. The gas valve opens and fuel enters the column. The joints of gas pipes must be checked with a solution of water and soap. The leak will need to be repaired if bubbles appear anywhere.
Next, the water is started, the Mayevsky tap is opened, and all the air is released from the pipe. After this, batteries are inserted into the column to power the display and electronic ignition. To check the operation of the system for the presence of hot water, you need to open the nearest tap. At first the flow will be cold, then the heating will turn on and the pressure will be warm. At first, the water will have a not very pleasant smell of fuel oil. The column needs to work for some time so that the lubricant is washed out of the pipes.
Necessary tools and components
Installation and repair of columns is always carried out using fittings for metal-plastic, the water heater itself, a pipe cutter, a salt filter, all the necessary taps, including Mayevsky’s device, wrenches, a drill, PVC water supply, a special soldering iron for pipes, gas hoses, a magnetic filter, corrugations, screws and dowels.
Who is allowed to work with gas equipment?
Independent intervention in the operation of the system is highly undesirable. Repairs to dispensers should always be carried out only by a gas service employee with the appropriate clearance. This is the only way to be sure that the entire system is working properly.
stove?
To do this you will need a special bellows hose. The liner should not go behind the oven in a hot place. The hose should also not be stretched to avoid the risk of damage. Sealing material is often used for threaded connections. To check the liner for gas leaks, you need to lubricate it with soap suds.
The insulating connection is carefully wound onto the thread, and then a rubber gasket is inserted into the hose. After this, you can screw the liner to the gas pipeline. There is no need to tighten the thread too much. The stove is placed in place of the old one, the legs are adjusted in height so that the cooking surface is level.
Behind the appliances you need to remove the wallpaper or put a metal sheet if the wall is wooden. This will prevent possible fire while the oven is operating. The gas hose is connected to the stove using a gasket. After this, we check all connections with soap foam. To find out, it is better to consult with an experienced employee of the relevant service.
Correct use of liquefied gas
If the gas stove is connected to liquefied gas, you need to make sure that special nozzles are provided on the burners. Natural gas fixtures have significantly larger hole diameters. Often this feature is not taken into account during installation, and the flame periodically goes out. Before purchasing hoses, it is necessary to take into account the features of the gas pipe outlet device on the stove.
Device operation guarantees
Reliability and quality of connection can only be ensured by gas service employees. Self-installation of speakers and stoves is prohibited by law. Unqualified intervention in the operation of gas supply systems can cause an explosion, fire, or harm to others.
Conclusion
The technology for installing geysers is, in fact, nothing complicated. When replacing equipment with a new one, some of the preparatory work may not be performed. After dismantling the old unit, there is no need to re-measure the pressure in the pipes, as well as bring gas and water lines to the connection point. If the old connection is preserved, it can be used when connecting new devices. Work with gas equipment can only be trusted by qualified specialists who have the appropriate permit.
If you decide to install a gas water heater where there has never been one, you need to connect a gas pipe to the installation site of the water heater. To do this, you need to contact the gas service of your area or a company that has a license for this type of activity. You should not try to do this yourself, in this case you risk your life and the property of other people in the apartment building. All work related to gas supply, such as supplying a pipe, installing shut-off valves and tees on it, is carried out by organizations that have the appropriate license.
Installation of a geyser is carried out only after receiving an agreed project. Some of the work can be done independently, but all requirements must be strictly observed. If you do not do this, the gas utility will not put your water heater into operation.
Standards for installing a geyser
The geyser is installed in a room with a ceiling height of at least 2 m, its volume must be at least 8 m3. The room requires ventilation, for example, a window or vent, as well as a chimney with a diameter of at least 120 mm. The so-called “choke” is not considered a chimney. The pressure in the water supply must be at least 0.1 atmosphere. The wall on which the speaker will be located must be made of non-combustible materials. It is prohibited to install the water heater above a gas stove, and you must leave a distance of at least 10 cm to it.
You will need the following documents: a certified report on the technical condition of the chimney, a technical certificate of the dispenser, an agreed upon installation project, as well as an application for the reconstruction of the apartment, signed by its owner. The application is submitted to the city administration, a report on the technical condition of the chimney is drawn up by the ventilation and smoke duct control service. If you have not yet purchased a geyser, just indicate the selected model. This data is necessary for the preparation and approval of the project at GORGAZ.
Replacing an old gas water heater
If a new column is installed in the same place, it meets all the technical characteristics of the old one, you must submit an application to the city gas service with a request for permission to replace the device, provided that the same place is maintained.
After this, you can begin dismantling. First, the gas access is blocked and the pipe is removed from the point of entry into the water heater, then the water supply system is turned off. The connecting pipe is removed from the outlet of the column and removed from the chimney, after which new equipment is installed. When all work is completed, a signed certificate is issued stating that the column was installed in accordance with all standards and requirements.
Installing a gas water heater allows you to forget forever about interruptions in hot water supply both in a private house and in an apartment building. This is a responsible event that requires compliance with certain standards and coordination with regulatory authorities.
In the case where a geyser is installed where there was none, in order to obtain permission for installation, a communications supply project will be required, which is ordered from any company that has the appropriate permit. Replacement of an old device without changing the supply line is carried out after approval and subsequent registration of the new device in the gas industry. Any actions related to the gas line (laying out pipes, installing a tap or tee) have the right to be carried out only by a specialized organization, which also issues a conclusion on the commissioning of the equipment. You can fix the column, connect it to the water supply and arrange the chimney on your own.
- Area – at least 7.5 m²;
- Height – more than 2 m;
- Availability of a chimney with a diameter of 120 mm;
- The minimum pressure in the water supply is 0.1 atm;
- Availability of ventilation;
- Durable walls lined with non-combustible material.
It is prohibited to install the speaker in residential premises and bathrooms.
- Places for fastenings are marked on the wall, which should securely hold the device filled with water, holes are drilled, dowels are driven in and the column is hung;
- Wiring is laid, including water purification filters, Mayevsky taps, supply hoses or pipes;
- The tightness of the connections is controlled by a test run of water;
- The chimney draft is checked and the outlet pipe is installed;
- Next, you need to contact specialists to connect to the gas main.
Even if all the work was done independently, in order to avoid a fine, it is necessary to invite gas service employees to check the equipment. Additionally, it is recommended to watch a video review showing the operation of the Neva-Lux gas water heater:
Considering regular breakthroughs and preventive work with hot pipelines, a rational solution would be to purchase a gas water heater. In addition, this method of obtaining hot water ultimately, with detailed calculations, turns out to be very profitable financially. This can be explained quite easily: gas tariffs are significantly lower than hot water tariffs.
Approach the issue of purchasing a gas water heater taking into account several qualitative and technical criteria.
Among the quality indicators we note:
- manufacturer reliability
- quality of equipment
- build quality.
Important! Choose equipment from trusted brands, with a decent warranty period and the availability of appropriate certificates. Otherwise, very sad consequences are possible, with a threat to your life if there are failures during operation.
Specifications
Video
What is the difficulty of installing a geyser?
The installation process itself does not require excessive effort. Expect a lot of time when collecting required supporting documentation.
Rules for installing a geyser
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 dispenser, certification of the plan and work performed by special authorities - GorGaz, firefighters, City Administration, technical supervision. 
Sequence of actions for completing documentation
Important! When changing the location of the column, as with the first installation, the process of collecting documents will be more labor-intensive and painstaking than with the usual replacement of an old device while maintaining the previous project.
List of documents
After receiving confirmation, you should have the following package of documents in your hands:
Standards for installing a geyser
Today, all processes for installing this type of equipment are regulated by the following acts:
- Gas distribution systems - SNiP 42-01-2002
- Clauses of the “General provisions for the design and construction of gas distribution systems made of 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.
Requirements for installing a geyser
In addition to the standards for the sequence of work on installing a gas-type water heater, there are a number of requirements directly for the room in which installation is planned.
Important! Carefully study the list of rules given below; compliance with them is mandatory.
List of requirements
Is it possible to install a geyser yourself?
With your own hands, you are quite capable of mounting the column, wiring and connecting to the water supply system, and arranging the chimney. It is better to leave connection to the gas pipeline and testing of operation to GorGaz specialists. If you decide to do all the work yourself, carefully study the diagrams and step-by-step instructions given below.
Tools
To perform 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 internal diameter of 13 mm and a length of no more than 2.5 m
- metal-plastic pipes for gas
- gas hose
- fittings - “American” and for metal-plastic
- mounting clips
- gas taps
- water tap
- pipe cutter
- soldering iron
- filters - magnetic and salt
- Mayevsky crane
- dowels
When venting combustion products through a 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 decorating the chimney (the dimensions must match the dimensions of the corrugation).
Removing the old column
When replacing equipment, first dismantle the old one, following the instructions below.
Sequencing
- Close the valve on the gas pipe, eliminating the flow.
- Unscrew the nut securing the hose using 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 taps at the entrance to the pump.
Important! If these have not been installed before or you 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.
- Remove it from the chimney.
The last steps apply only to the type of column in which combustion products are removed through a chimney.
Gas water heater installation diagram
Please carefully examine the diagram and read the instructions contained in this article, as well as those attached to the device itself, before performing installation work.
Water heater installation
Regardless of whether you are installing new equipment or replacing old equipment, a further description of the technology is outlined, taking into account the already completed installation of a gas water heater chimney or the purchased turbocharged closed apparatus and the prepared gas pipeline layout. 
Sequencing
Video
Watch the attached video to better understand the principle of installing a geyser.
Conclusion
Despite the detailed presentation of the step-by-step technology for installing a gas water heater, it is recommended to contact a specialist to connect to the gas pipeline, configure and test the device.
If you nevertheless did all the work yourself, invite a gas service representative to draw up the appropriate report in order to avoid a fine during operation and ensure the reliability of the result.
How much does it cost to install a geyser? Dismantling and replacing a geyser by the hands of specialists will cost an average of 3,000 to 4,500 rubles. This is in Moscow, in the regions it will be cheaper. The amount is not astronomical, but, nevertheless, it is still a pity to give it for work that you can easily do yourself. And everything would be fine, but in this matter there are a great many nuances, ignoring which can greatly hit the user’s pocket.
What are these nuances? What kind of rules and regulations generally govern these types of work? And you simply must know the basic provisions, because this is not a plumbing system with which you can experiment. Gas is gas, negligence and carelessness in dealing with it ends very badly. In this article we will look at the procedure for replacing and installing a gas water heater. Let's look at step by step how and what you can do yourself, and what is best left to a gas industry representative.
Standards and requirements governing the installation of a geyser
Note! Let’s immediately make a reservation that all types of work related to gas supply, i.e. supplying a gas pipe, installing tees, shut-off valves on the gas pipe, etc. carried out only by organizations that have the appropriate special license. Ignoring this provision will, at best, lead to a hefty fine and a severe headache.
All work on installing a geyser can be divided into two categories:
- installation from scratch, i.e. it wasn’t there, but you decided to put it in;
- replacing the old column with a new one.
In the first case, a design and supply of a gas pipe to the location of the future water heater is required. All this work is the responsibility of the gas industry in your area or a company that has a license for the corresponding type of activity. It is impossible to do without this. Do not try to do anything yourself in this case. This is not smart, because... You yourself risk your life and property, and when installing a gas water heater in an apartment, you endanger other people. And it’s not easy to play such games with the state, it’s not the right weight category. Therefore, entrust this work to people authorized by law for this type of activity.
If the project is ready, everything is agreed, then by completing part of the work properly you can save a significant amount. Any work that you decide to carry out yourself must be carried out strictly in accordance with the requirements of the approved project; if this is not done, the gas industry will not accept this gas water heater for operation.
Note. All work on the installation of gas units begins only when you receive a project with all the necessary permits and approvals.
All standards for installing a geyser are regulated by the following acts:
SP 42-101-2003 "General provisions for the design and construction of gas distribution systems made of metal and polyethylene pipes"
SNiP 42-01-2002 GAS DISTRIBUTION SYSTEMS
In order to bore the reader with many clever words, we present the basic standards for installing a gas water heater, which apply to the intended installation location:
- The room in which the column is installed must have a volume of at least 7.5 m3.
- The room must have ventilation (vent, window, etc.).
- The ceiling height in such a room must be at least 2 m.
- The room must have a chimney with a diameter of at least 120 mm (at the same time, “smotherers” in apartments do not qualify as such).
- The pressure in the water supply must be at least 0.1 atmosphere.
- It is prohibited to install geysers in bathrooms.
- The column is installed on a wall made of non-combustible materials; installation above a gas stove and at a distance closer than 10 cm to it is prohibited.
At the same time, those speakers that are installed in bathrooms, in accordance with the technical standards in force at the time of installation, are allowed to be used in the future. That is, the law does not clearly prohibit its further exploitation. This means that replacement with a new one does not prohibit. And does not require transfer at the user's expense.
If all these requirements for installing a geyser are feasible, then you can order a project. The exact installation location and other details will be displayed in the project.
Removing the old column
Since the basic requirements and standards have been reviewed in general terms, if everything complies, you can begin replacing the gas water heater. And we should start with dismantling. You can do this yourself and save from 300 to 800 rubles.
We start by shutting off gas access to the column by closing the tap at the end of the gas pipe. Using an adjustable wrench or an open-end wrench of the appropriate size, unscrew the fixing nut of the hose (rarely, but there is a method of supplying gas using a metal pipe). It is quite difficult to damage the gas pipe when unscrewing the hose, but with the “ancient” connection method, i.e. a piece of metal pipe, quite realistic. Especially if the joint has been painted over for years. In this case, do not use excessive force; to remove paint, use a modern solvent specifically for this work. When unscrewing, hold the gas pipe with a second adjustable wrench, this way there is less chance of damage.
After disconnecting from the gas pipe, it is necessary to remove the hose (pipe) from the point of entry into the column. If the hose has recently been changed and its condition is satisfactory, then it can be reused when connecting a new column. If you have any doubts about the reliability of the hose, purchase a new one. When purchasing, take a certified and tested hose; after all, this is gas and buying a cheap hose from an unknown manufacturer is not appropriate here.
The next dismantling step is to turn off the water supply system. If there are taps to turn off the column, turn them off. If this is not possible, shut off the supply to the apartment. In the case of the latter option, before installing a new column, purchase two taps for the inlet and outlet of water from the column and install them on the pipes in the place where the connection will be made. This will make it easier to maintain in the future.
After disconnecting the column from the water supply, remove the connecting pipe from the outlet of the column and remove it from the chimney. The speaker is disabled and can now be removed from the wall mount. The installation site is free, you can begin installing the new unit.
Installation and commissioning of a gas water heater
During the initial installation, it is better to entrust the connection and verification, with the registration certificate of the gas water heater, to gas specialists. If you change the old column, you can do all the work yourself. But there are two nuances, if you doubt your ability to correctly install a gas water heater - trust the specialists, your wallet will be somewhat thinner - but the nervous system will remain unaffected and, ultimately, the benefit will be yours.
If you decide to do everything yourself, you will succeed, the main thing is to do everything slowly and progressively. But even in this case, you cannot do without a representative of the gas industry; he must register the dispenser. The best option, perhaps, is the situation when you do all the connection work yourself, with the exception of gas-related work. In this case, you will save a significant amount and there should be no problems with the gas service, because connection to the gas main will be carried out by their representative. We will consider this option.
Tools and materials
Before starting work, you must purchase and have the following materials:
- Galvanized pipe or corrugation, no thinner than 1 mm. If it comes with a speaker, great. If not, measure the diameter of the outlet of the column boiler or look in the instructions and purchase the appropriate pipe.
- Purchase a ring-socket for arranging the entrance to the chimney, also according to the size of the corrugation.
- If you plan to install a gas water heater in your house and you need chimney equipment, you will need an asbestos or metal pipe with a diameter of at least 120 mm, or more. The length is at least 2 meters, more is possible - the traction will be better.
- The gas hose is standard, the size of the hose will depend on your conditions, i.e. distance from the end of the gas pipe to the inlet into the column. Pay attention to the type of thread at the inlet to the column, the hose tip must be suitable, there must be a match in the type of thread external/internal and a diameter of ½" or ¾". The diameter of the fixing nut on the hose is ½" and if the inlet to the column is ¾" you will need an adapter (coupling).
- It is better to prepare the water supply connection point in advance, so you only need two connecting hoses of the required length. You can make connections using metal-plastic pipes, whichever is more convenient for you. In the latter case, determine whether couplings are needed to match the dimensions of the pipe and the connection location and thread (external/internal).
- Dowels for mounting the speaker on the wall.
- If your home does not have a coarse filter installed, we recommend installing one. The service life of the new unit will directly depend on the quality of the water.
Tools you will need:
- Depending on the complexity of the work and the material - a hammer drill with a set of drills and chisels, a drill with a drill for ceramic tiles.
- Adjustable wrench (2 pcs.).
- Open-end wrenches 27/30 and 32/36.
- Tow and sealant type "Unipak".
Installation and testing of a new unit
This description assumes that the water supply and the presence of a chimney have already been implemented. At the location where the gas water heater is installed, mark the points for installing the fasteners. You must calculate the height of the column in such a way that the connecting pipe (corrugation) has a vertical length from the outlet of the column to the socket of at least 50 cm, if the room height exceeds 2.7 m - 25 cm. At the same time, the installation height of the geyser is not should give children free access to the device. Also measure the distance between the mounting holes on the speaker body. After you calculate the installation locations for the dowels using a hammer drill or drill, depending on your conditions, make holes and install hooks. The speaker can be hung on the wall.
Now, using connecting hoses or PVC pipes, we connect the water supply to the inlet and outlet of the column. Using a hose is convenient because it does not require tow or FUM tape at the joints. We connect the cold water tap in series with the gas water heater inlet, indicated in blue. In the same way, we connect the hot water outlet to the tap (indicated in red). We open the cold and hot water tap and see if everything is sealed. If a leak is detected, carefully tighten the hose fixing nuts. Without unnecessary efforts, as you can crush the rubber gasket - seal. The connection using pipes will need to be unscrewed in places of leakage and the tow with a sealant or FUM tape must be twisted.
After we achieve the tightness of the water supply, you can go in two ways: either call a gas technician, or install the gas water heater yourself in full. You decide.
If the second option, then take a gas hose and screw it to the gas tap. After this, connect the other end of the hose to the inlet in the column. We clamp without unnecessary effort, so as not to crush the paranitic gaskets. We take a soap solution, generously smear the joints around the entire perimeter, open the gas supply tap and carefully observe to see if there are any bubbles. If there is, press the nut a little and apply it again. So until we achieve complete tightness.
So, we have a sealed connection between water supply and gas. The next step is to install the corrugation. Here everything is much simpler, on the one hand we put the speakers on the outlet, on the other we insert them into the chimney socket.
We insert the batteries into the column, open the hot water tap and adjust the water temperature according to the operating instructions for the column. We use it.
And one last thing. Usually, large stores also have a connection service. When purchasing, ask how much it will cost to connect them to a specialist. It will be cheaper or even free, and there will be no issues with the warranty on the column at all. And registration in the gas industry will take place without unnecessary friction.
If this is not available, I still recommend that you entrust the connection of the gas hose to a gas installer (the cost of installing a gas water heater for such a connection is several times less than for complete dismantling and installation), and he will be pleased (he will earn money) and there will be no complaints against you. Plus a guarantee of safety and integrity. But it is, of course, up to you to decide.