Connecting a gas stove with an electric oven: installation procedure + connection rules and regulations

Rules for connecting the stove in the apartment

It is more rational to entrust the installation of a gas stove in an apartment of a multi-storey building to specialists. This work is carried out by specialized services that control gas supply. Previously, a contract is concluded between the consumer and the organization, according to which fuel is supplied. Payment is transferred to the personal account specified in the agreement.

A contract is required when buying an apartment. It is also necessary to collect a list of documents in order to connect a gas stove in an apartment in accordance with the current legislation:

• a certificate confirming that you are the owner of the apartment;
• technical passport of the apartment;
• old contract for service;
• passport for new equipment and a gas meter.

If the book on the old stove remains, then it is also better to provide it. As an alternative to the certificate of ownership, you can use a certificate that confirms the registration of the apartment.

When all the documents are collected, submit them to the gas service. The staff will provide you with forms to fill out. A contract is required. The organization will give you permission to install new equipment.

Normative documents

Steel

1. What regulatory document should a steel gas pipeline comply with?

1. What are the requirements of this standard?

I will highlight the key points of his text.

Pipe diameter can vary from 6 to 150 mm.

Gas distribution throughout the apartment is made with a pipe DN 15 and DN 20.

Allocate light, ordinary and reinforced pipes. They differ in wall thickness. The thickness, depending on the diameter and type of pipe, varies from 1.8 to 5.5 mm.

The material is shipped in straight lengths from 4 to 12 meters. With a diameter of up to 20 mm, the pipe can in theory be supplied in coils; In practice, I have never encountered such a form of delivery.

The pipe can be either made of black steel or galvanized. Zinc anti-corrosion coating greatly increases the service life of the gas pipeline. Suffice it to say that I have repeatedly opened the heating risers assembled from galvanized steel, and after half a century of operation they did not differ in condition from new ones.

Zinc anti-corrosion coating makes the material almost eternal.

At the request of the customer, threading is possible at the ends of straight segments with a diameter of more than 10 mm.

The ends of the segments are cut at right angles to their longitudinal axis and deburred. The end bevel should not exceed 2 angular degrees, the size of the remaining burrs should not exceed 0.5 mm.

Hydraulic tests are carried out by pressure:

• 25 kgf/cm2 for ordinary and light pipes;
• 32 kgf / cm2 - for reinforced.

All VGP (water and gas) pipes are electric-welded. They are produced by folding a flat tape and welding the seam, followed by calibration.

stainless steel

1. According to what GOST is a corrugated stainless pipe produced?

Manufacturers of corrugated stainless steel in the documentation for it mention GOST under the number 10705-80. It describes the technical requirements for the production of longitudinally welded pipes with a diameter of 10 - 530 mm.

Dielectric insert

Separately, we should dwell on the use of a dielectric insert. Few ordinary people have heard about this device and know about its purpose.

A dielectric insert is needed to prevent the negative effects of stray currents. In apartment buildings, you cannot be sure that one of the neighbors will not leak current through the gas riser from an ungrounded household appliance. These currents can seriously damage the electrical components of the gas stove - backlight, electric ignition or control unit. The dielectric insert prevents their transmission through the metal braid of the flexible hose to the household appliance itself.

A dielectric insert is installed between the tap and the flexible hose. Naturally, its threaded connection must also be properly sealed and checked.

The main secrets of connecting gas appliances

Suppose you have already made your choice, bought a gas oven and a hob. It remains only to connect them to the gas supply. It is clear that this requirement cannot be avoided.

The rules for installing a gas oven and a gas hob at the same time require the use of two fuel supply pipes, each of which must be equipped with an individual tap that allows you to shut off the gas supply at any time.

Today, devices are connected to the gas supply using two types of connecting elements:

• Flexible hose.
• Inflexible tube made of copper or steel.

Here is what you need to consider regarding the wiring of the hoses themselves:

• There is a connection through a special outlet, which is located near the oven.
• After completing all work related to the installation, it is recommended to make sure that the tube is not bent anywhere, the fuel flows freely.
• When connecting a gas oven, please note that the hose should not be longer than two meters.
• The number of connections should be kept to a minimum.

If you follow all these rules, then you can connect the gas stove yourself without any problems.

Gas hose installation

Checking the complete set and the absence of mechanical damage. Having received a gas oven from the store, it is important to check it for mechanical defects that may have appeared during transportation, and check the contents.

Connection to the gas pipeline. Then we connect the gas hose to the central gas pipeline. Before installing the gas hose, a dielectric insert must be installed in the faucet, which does not transmit electricity and does not let it through to the hose and to the gas appliance. Point of connection to the gas pipeline

Point of connection to the gas pipeline

• If the built-in oven is connected instead of a conventional gas stove, then turn off the old household appliance. To do this, close the shut-off valve and screw the tee onto the outer pipe. It is necessary to bring the energy carrier not only to the oven, but also to the hob. Both hoses must have their own valves in order to cut off the gas supply to each of these two kitchen appliances. This is necessary for comfortable work with them in the future.
• The flexible hose is connected to the household appliance by simply screwing the nut on the thread. But to ensure tightness, it is necessary to use a special gasket at the place of such a connection. It must first be lubricated with grease.

Attention! When tightening the nut, it is important not to overdo it. Otherwise, you can break the thread!

Installation Tips and Tricks from the Experts

To install a gas stove, it is recommended to take such hoses so that no more than 30 centimeters of the sleeve sag after connection. Otherwise, you will need to lay an eyeliner, which in the future will lead to cracking of the material.

Connecting the stove to a common line is recommended in a room with forced ventilation turned off and windows closed. This will allow you to immediately smell the gas leak. Before starting the installation of a new plate, it is necessary to find the shutoff valves for the pipe. In addition, it is not recommended to paint the hose. Instead, you can use colored heat-resistant electrical tape. The composition of the paint includes components that corrode the rubber sheath.

2 id="stoimost-uslugi">Service cost

There is no clear billing for the installation of a gas stove.The cost is calculated by specialists individually. Therefore, it is extremely problematic to say how much the conditional Mosgaz will charge you for installing new equipment. Pricing depends on the region and the complexity of the work. On average, the cost varies in the range of 1000-3000 rubles. Payment is charged to you only after the new stove is installed in the apartment.

Keep in mind that if you use the services of a store or a certified commercial organization whose employees will install the stove in accordance with all standards, you still have to call Gorgaz employees. In this case, you will have to pay extra for their departure.

How to prepare a niche and an electrician

Most modern kitchen sets have special sides in the niche dedicated to the oven. They, as a rule, are already mounted during production - the device is attached directly to them.

If there are no bumpers in your configuration, then it does not matter - this does not affect the work in any way. Just install the oven as is. It will still take its place in the niche and will be securely fixed in it.

Some modules have a rear wall by default. You can either remove it, or just make a hole in it for wiring. During installation, for ventilation purposes, the distance from the cabinet to the wall must be observed - 5 cm.

By the way, she needs special attention. You will need a separate electrical cable with a cross section of 2.5 mm at least. It will come from the junction box - it can be connected directly to the wires that come from the cabinet

It will come from the junction box - it can be connected directly to the wires that come from the cabinet.

There is another option: equip it with a separate 16-ampere outlet that can withstand about 4 kW - the oven consumes quite a lot, so you need to provide it with the opportunity to realize such power.

In this case, you will also need a grounding plug, which is connected to the regular three-wire wiring of the oven through an insulated twist.

Place the socket not too low - at least 10 centimeters from the floor level.

Many experts do not recommend the use of straight coarse twisting, indicating that the wires should be connected to each other exclusively by screw terminals.

However, we all understand that ideal conditions do not always exist. If the repair in the kitchen is from scratch - try to take into account all the nuances. If the oven needs to be built into an already finished kitchen set, do it as you can.

Technology features

A standard household gas stove consists of two parts: a hob and an oven. In the classic version, both the oven and the hob have one solution: they work on gas or electricity. In combined models, gas is burned in the burners, and the oven is powered by electricity.

Stove with gas hob and electric oven

Hobs can be made of enameled or stainless steel, glass ceramic or anodized aluminium. Most modern models are equipped with burners of different diameters. The larger the burner, the higher its power. The combination of burners of different power allows you to cook food in dishes of various capacities as conveniently as possible.

Cooking surfaces can be equipped with very good functionality and security systems: electric ignition, languishing function, continuous burning, shutting off gas when the flame goes out, etc.

Electric ovens in combined gas stoves can be of two types:

1. Classic. Structurally, classic ovens include an upper and lower heating element. Optionally, they can be equipped with a skewer and (or) a grill grate;

2. Multifunctional. In addition to the classic arrangement of heating elements, multifunctional equipment can have additional side and rear heating elements, be equipped with convection, self-cleaning and even microwave functions.

   Classic oven device

It should be understood that the presence of a mass of options in the oven not only simplifies the operation and maintenance of the device, but also significantly increases its cost.

That is why, in order not to overpay when choosing a gas stove with a multifunctional electric oven, you should pay attention to models with only the options you need.

Electric oven with convection

Calculation

1. How do you know how much gas can pass through a hole of known size in a unit of time?

In the simplest possible form, the outflow of gas from a pipe is described by the Torricelli formula.

The master left us a gift - a simple and easy-to-use formula.

For gas, it looks like this:

• V is the velocity of the outflowing gas in meters per second;
• g is the free fall acceleration (9.8 m/s2);
• Dp is the pressure difference between the gas in the requirement and the atmosphere in kg / m2 (as a rule, the pressure of domestic gas exceeds atmospheric pressure by 0.2 kgf / cm2, or 2000 kg / m2);
• λ is the density of the gas. At room temperature, it is approximately equal to 0.72 kg/m3.

Knowing the flow rate of the outflowing gas and the diameter of the orifice, it is easy to calculate the flow rate per second. To do this, you need to multiply the speed in meters per second by the area of ​​\u200b\u200bthe hole in square meters.

The area of ​​a circle is calculated using the formula πr^2, or πd^2/4. r is the radius of the circle, d is the diameter.

Calculate the area of ​​a hole from its diameter.

Let's do the calculation for a hole with a diameter of 15 mm.

The flow velocity is √(2*9.8*2000)/0.72=275 m/s.

The hole area in square meters is 0.015^2*3.1415/4=0.000176709375.

Gas consumption in cubic meters per second will be 0.000176709375*275=0.048595078125. To calculate the consumption per hour, you need to multiply the resulting value by 3600 (the number of seconds in an hour). In our case, 0.048595078125*3600=175 cubic meters of gas will enter the atmosphere in one hour.

The consequences of such a leak can be very serious.

Step one. Find out the power of the power grid

As a rule, an electric stove needs a power of eight to ten kilowatts, but in old gasified houses, the allowable load does not exceed five kilowatts. Therefore, before replacing the plate, it is necessary to ask if there is a possibility of increasing the load. To do this, you need to contact the management company. If the power can be increased, proceed to the preparation of a project for the installation of a new electrical appliance and the collection of the necessary documents for the managing and energy supplying organizations. If it is impossible to increase the power in the network, a new supply cable must be drawn at your expense.

Installation of a gas wall-mounted boiler - kitchen requirements

1. Ceiling - 2 meters and above.
2. The total volume of the kitchen is more than 7.5 m3, ventilation is equipped, a window is installed and there is a door leading to the balcony.
3. For air exchange, it is necessary to equip a grate at the bottom of the wall or door that opens into the next room, the area of ​​\u200b\u200bthe grill is at least 0.02 m2.

To install a gas boiler in the kitchen, you may need permission from the gas service.

If the kitchen in the apartment does not meet the requirements of SNiP, then gas heating equipment can be installed and operated only with the permission of the gas supervision.

Attention!

It is strictly forbidden to install more than 2 heating devices or more than 2 boilers in one room if the volume of the room is less than 7.5 m3

The existing rules for installing a gas boiler in a private house largely repeat the requirements for boilers that operate in apartments in multi-storey buildings. The differences are caused only by the fact that often in a private house a separate room or building is allocated for heating equipment, which is subject to additional requirements listed below.

How to replace an old ball valve

In some cases, it will be necessary to replace the old ball valve. Such a need arises when this component passes gas or does not fit in size. Replacement should be carried out quickly, as the gas will enter the room during the procedure.

At this stage, you will need to insert a piece of wet rag or a cork of the appropriate size into the pipe. But if there is a thread on the gas pipeline, then you can not install a plug. Further, the procedure is performed according to the following algorithm:

Forced ventilation turns on, windows open.
A sealing tape is wound on the thread of the gas pipeline.
A new ball valve is screwed onto the pipe

At this stage, it is recommended to be careful, avoiding hitting the key on the gas pipeline, excessive force and sudden movements. Such actions can provoke the formation of a spark.

In order to avoid unpleasant consequences, it is recommended to put a sponge on the key, fixing the latter with electrical tape.

At the end of the work, the tightness of the connections should be checked. To do this, the ball valve is coated with concentrated soapy water. If the applied composition does not bubble, then the connection is tight. Otherwise, you will have to remove the tap and repeat the described steps, applying an additional layer of sealing tape to the threads.

Upon completion of the described work, you can begin to connect the stove to the gas main. To do this, the device is first installed in a permanent place and leveled. The following work is carried out:

1. Linen tow is wound onto the external thread (if any) of the hose.
2. An adapter is screwed onto the plate outlet through the sealant. This procedure is necessary in cases where the diameter of the gas hose does not match the dimensions of the appliance nozzle.
3. The hose is screwed to the stove nozzle and gas pipe with a wrench. It is also not recommended to apply excessive force at this stage. If necessary, after completion of work, you can tighten the nut.

When installing the plate, avoid bending the hose. The hose connected to the gas pipe must hang freely.

Circuit breaker and wiring requirements

Before proceeding with the connection, you should find out whether the wiring corresponds to the potential load and whether a separate circuit breaker is installed in the electrical panel.If there are no elements for installation or they do not fit at face value, we recommend buying them in advance along with the stove.

On powerful electrical appliances, they not only allocate a separate line, but also put individual double protection: ideally, this is a set of RCD + circuit breaker.

Instead of this pair, a difavtomat is often used to save space in the shield.

Scheme of installation of protective equipment in the electrical panel. Through automation, a phase is supplied to the outlet, the neutral wire is pulled through the RCD to the zero bus, and the ground to the common ground bus

When buying a machine, the decisive criterion is the rating, which is chosen according to the maximum value of the current consumed. Usually it is 40-50 A, but it is better to clarify the technical data in the plate passport. We recommend that you familiarize yourself with the rules for choosing a machine in more detail.

To guarantee safety, the denomination is selected upwards - so when working at maximum loads, the protection will not constantly work. Suppose that the maximum current consumption is about 45 A, therefore, a 50 A automatic machine is needed.

To select an RCD, the principle is the same - in the direction of increase, that is, in a pair with a 50 A machine, they put an RCD at 63 A.

With the choice of wires, too, there are no particular difficulties. Aluminum cable is not suitable - it is better not to use it at all for home wiring. This is unsafe, and in terms of characteristics it is inferior to its copper counterpart. Therefore, we stop on a copper wire with a cross section corresponding to the power and current consumption.

When choosing a wire, the characteristics of the network and the method of laying the wires are also taken into account.According to modern requirements, new city apartments are initially equipped with wiring that meets all standards. And in old housing, you may have to change the wiring

If in the process of preparatory work you still have to buy wires, you need to focus on the power parameters of the plate:

• 3-5 kW - wire section 2.5 mm²;
• 5-7.5 kW - 4 mm²;
• 7.5-10 kW - 6 mm².

For a three-phase network, a 5-core wire 2.5 mm² is used.

If you have not yet decided which stove model to buy, but have already started replacing the wiring, you can safely buy a VVGng 4 mm² wire - if the distance from the stove to the shield is no more than 12 m, and VVGng 6 mm² - if the electrical panel is further away. Modern stoves with ovens are powerful enough, so you can't go wrong.

And now we will analyze in what order it is better to perform all the actions.

Connecting a gas stove - safety rules

Natural gas used for cooking in communal houses is highly explosive, so compliance with safety rules when working with gas is the main condition when working with gas-consuming equipment. The connection of the stove to the gas supply system is carried out taking into account the following requirements:

1. For gas supply in the household, special flexible hoses made of various materials are used, bearing a manufacturer's tag indicating the date of manufacture.

Rice. 2 Gas stoves with gas pipe connection

1. The rules for connecting a gas stove in an apartment regulate the length of the hose, which should not exceed 4 meters, if it is necessary to take the stove to a greater distance from the gas supply pipeline, shut off the gas supply and weld a piece of metal pipe of the required length to the main.
2. A flexible underwater hose is mounted in an easily accessible place, trying not to block it with non-separable building structures; connection requirements do not allow the use of two segments with any type of connection.
3. If the hose in the visibility zone does not have a very aesthetic appearance, it is pasted over with a self-adhesive film or paper; it is forbidden to use any paint that can damage the polymer surface of the eyeliner.
4. Some modern gas hob ranges have built-in electric ovens with powerful heaters. In this case, a separate network is organized for the supply of electricity with its own RCD protective shutdown device. When placing it, you should follow the rules for the operation of PES electrical installations, which regulate the following parameters:

• The distance from the electrical outlet to the gas supply pipe must be at least 500 mm.
• The gap between the power cable of the stove and the gas pipe must not be less than 100 mm.

Rice. 3 Plate connection diagram

Rules for connecting the stove in the apartment

When using a stove in an apartment, it is better to entrust its connection to specialists of gas supply services and organizations with whom you must first conclude an agreement for the supply of natural fuel with the opening of a personal account to pay for services. An agreement is usually necessary when acquiring a new apartment as a property, the list of documents that are generally needed to connect a gas stove in compliance with all standards is as follows:

1. Certificate of ownership of the apartment and a certificate confirming the state registration of housing.
2. Registration certificate for the apartment.
3. The old contract for the maintenance of the stove and the subscriber's book, if available.
4. Passport for the installed stove and gas meter.

The documents collected by the homeowner are submitted to the gas service, after which its specialists issue forms for filling out a gas supply agreement. After completing the paperwork and instruction manual gas installations, the contract is signed by both parties with the issuance of permission to connect the equipment.

Rice. 4 Pipes for gas stoves and panels

Rules for connecting a stove in a private house

If in a city apartment the duties of specialists of the gas supply service, with which the owner has concluded a contract on a voluntary-compulsory basis, include a mandatory check of gas equipment at least once every six months for the safety of the whole house, then in the private sector the situation is different.

Here, the homeowner independently decides on gas supply, he can connect to the central gas pipeline and conclude an agreement with the relevant services, by analogy with apartments, or use an autonomous gas supply by cylinders and gas holders.

With the latter options, it is most likely that you will have to connect the gas stove yourself or with the involvement of hired specialists without any guarantees. Therefore, the matter should be approached with full responsibility and carefully study the technologies in order to choose the right components and carry out high-quality installation.

Rice. 5 Arrangement of gas hoses

Conclusions and useful video on the topic

Video #1 Tips from a user who has connected the oven himself:

Video #2 Installation recommendations from manufacturer Hans:

Video #3 About connection order:

And the last recommendation: be sure to work in tandem with a representative of the gas service. If the connection goes “past” Gorgaz and an accident occurs that causes damage to health or damage to property, you will face considerable fines.

Sanctions are also possible during the next scheduled inspection - if the installation of new connected equipment is not fixed and documented. Follow the law and you will be safe!

Please write comments, ask questions and post photos on the topic of the article in the block form below. Tell us about your own experience in business gas oven connections. It is possible that the technological subtleties of the process known to you will be very useful to site visitors.