Installing a gas boiler in a private house - what standards do you need to know about? Gas boiler in a private house: requirements and installation Instructions for installing double-circuit boilers.

The task is not easy. The boiler cannot be hung haphazardly, since the safety of the people living in the house often depends on how correctly the wall-mounted boiler is installed.
This means that the installation of this device is carried out in strict accordance with technical requirements and standards adopted in Russia at the legislative level.

That is why installing a wall-mounted boiler with your own hands is an extremely labor-intensive and difficult process for a beginner.

Stages of preparation for boiler installation

Before the owner of the house starts, you will need to collect some documents:

  • agreement on supplying the house with gas;
  • technical specifications and installation diagram gas system, approved by the relevant authorities;
  • written permission from the gas inspector to install the equipment.

Boiler installation rules and regulations

Gas heating equipment is installed in accordance with developed and approved technologies that ensure the safety of its operation.

  1. The question of how to install a wall-mounted boiler begins with preparing the room for it. The room must meet certain requirements: the boiler room can be located anywhere in the house, except for the bathroom, living rooms and toilets. However, when installing wall units, this requirement may be relaxed depending on the type of boiler. The volume of the room is from four square meters, the ceiling height is from two meters. The width of the doorway is at least 800 mm. Also in the room there should be natural lighting of the boiler through the window. In this case, the window size must correspond to 0.3 square meters. for every 10 sq.m. premises.
  2. Rules for installing wall gas boiler regulate the receipt of a certain volume fresh air by using supply ventilation to the place where the boiler is used. An insufficient amount of incoming air may be due to the accumulation of a substance hazardous to health and life in the room.
  3. : the standards for its placement are such that there must be more than 10 cm from the wall to the surface of the boiler. If this distance is less than required, the wall must be protected with a fire-resistant coating.
  4. Gas pipes can be metal, but not plastic.
  5. The chimney opening must correspond to the power capabilities of the boiler. In this case, its height must be at least 5 m, provided that the chimney is installed above the ridge on the roof of the house. When installing a chimney, it can have no more than three bends.
  6. When organizing a power supply system, it is necessary to provide a circuit breaker with current protection and thermal protection.
  7. In the room where the boiler will be located, there must be a gas sensor connected to a relay. In the event of a gas leak, the sensor must send a relay signal to block gas flow. Also, it should work sound alarm.
  8. Installation of a wall-mounted gas boiler; when starting it up, regulations require that the device be provided with a gas meter.
  9. If there are others near the boiler gas appliances, then the distance between the devices is set at at least 20 centimeters.
  10. When installing, the requirements even affect the completeness of the equipment. The boiler package must comply with the standards and contain: a manual, fasteners, a paper template for installation, special keys and fasteners.
  11. The installation height of the wall-mounted boiler is 80 cm - 160 cm from the floor surface.

If all these requirements are met, then there is no doubt about the reliability and fire safety of the gas heating system. Please keep in mind that the heating system must be checked regularly Maintenance by city staff gas service.


A simple piping of a wall-mounted double-circuit gas boiler, the photo of which you see on this page, can be done by your master, or you can...


  • In order not to spend money on a full-fledged chimney, you will need a coaxial pipe for a gas wall-mounted boiler. The installation, the photo of which is published on this...
  • When installing a heating system, sooner or later you get to installing a boiler room. Very often in Russia and the CIS countries, wall-mounted gas boilers are installed in private homes and beyond. This is primarily due to good gasification and ease of use of such boilers in comparison with solid fuel ones.

    Ideally, when installing a wall-mounted gas boiler, you need to involve a certified specialist. But what to do if a problem arises with such personnel? Let's look into this issue in detail.

    Many enterprises involved in the production of gas equipment offer users different kinds heating boilers, the designs of which are designed exclusively for working with blue fuel. They can be used for absolutely any scale and area.

    Speaking about installation types, boilers are divided into:

    Floor

    They are characterized by such indicators as high power, durability and reliability. Their purpose is installation in buildings with an area above the average size and area. However, flagship models also have their drawbacks: the need for a separately installed and equipped room.

    Wall mounted

    This type of boiler is a wonderful variation for private homes with small in size. Consequently, there is no need to build a separate room for them, and they are multifunctional models. Contain built-in expansion tank, circulation pump, security group, sophisticated automation. Assembly and installation do not require special elevated conditions.

    This type of boiler is installed everywhere and is widely used in modern apartments, dachas, houses and cottages, which occurs as a result of ensuring maximum comfortable conditions environment and minimal effort and expense for assembly and installation. They are currently being created in application design solutions and compact solutions. We also wrote about these types of boilers.

    There is also a division according to the type of combustion chambers of boilers.

    Open combustion chamber

    This model is prone to natural traction. One way or another, air is produced and penetrates from the interior of the room, and the combustion products themselves are discharged exclusively through the chimney. In case of shortage vent there will be a lack of oxygen. The performance of heating units with an open combustion chamber depends on the draft. It is important to install chimneys correctly and not skimp on their insulation. In this case, there is a high probability of risk of combustion products entering the inner part premises. Based on this, the price categories are much lower than average.

    Closed chamber

    They are characterized by forced traction. Electric fans (smoke exhausters) are installed in them, with the help of which it becomes possible to remove substances formed during the combustion process through the chimney. Air enters the chamber by sucking it through the outer, outer pipe, and the output is through the internal one.

    Difference between closed and open chambers

    The answer is quite simple and clear: in their design features, the method of oxygen absorption.

    It is worth understanding that in a residential building you need to resort to an option such as a closed one, since only this will be acceptable for use in private buildings. Open spaces require a separate room.

    Studying the process diagram, it can be noted that the air that provides normal and stable operation, is absorbed through a coaxial chimney from the external space. In the future, the already processed substances also move from the premises to the street. So there's no need for extra costs and the costs of additional ventilation devices.

    It is worth resorting to purchasing an open version only for their installation in boiler rooms. Its operating principle is the absorption of oxygen from the oxygen contained in the room. Therefore, it is important that regular and stable ventilation of the building is ensured.

    The main rule is to install a gas boiler completely separately from the house, which ensures safety, since the likelihood of leakage of gas and substances formed during combustion is reduced to a minimum, which is due to the non-use of air from the house. To completely eliminate the possibility of emergency emergency situation, you should first undergo a thorough inspection of the pipeline for the presence of various types of distortions, scratches and damage.

    Look at an example of converting a boiler room from an open boiler to a closed one:

    The advantage of installing a boiler with a closed chamber

    1. When getting rid of the products consumed in the isothermal process, a reverse reaction occurs - cooling, which dramatically increases the safety and reliability of such boilers.
    2. The room equipped for this device does not overheat and is protected from various and numerous air pollutants, since combustion occurs only on the street, that is, not within the house.
    3. High efficiency
    4. Air enters the room, the pressure increases, as a result of which its temperature increases. Thus, the closed chamber is environmentally friendly and clean.

    There are also disadvantages:

    An installed gas boiler with a closed chamber will not be able to operate without electricity. But as soon as electricity appears, all work starts automatically.

    Requirements for a boiler room with a gas boiler

    Much depends on the performance of the boiler: if it reaches more than 30 kilowatts, then there is a need for a separate room. It is on the basis of the provisions of the ‘Building Codes and Rules’ that specific instructions are drawn up and created for the arrangement of a boiler house specialized in heating for the combustion of products.

    • perhaps in attics, basements, that is, in special rooms of houses. But it is worth considering that a cleared corridor and sufficient illumination are required.
    • The established volume is at least 14 square meters taking into account a power of 30-60 kilowatts and above 15 square meters, intended for boilers of higher productivity.
    • Comfortable and unhindered access to the device.
    • Covering the walls with non-flammable material.
    • Providing a ventilation process of three times the amount of air exchange.

    Three options for installing a gas boiler

    When installing a wall-mounted gas boiler in a private home, you have three options:

    1. You contact the company yourself and order the service of installing a gas boiler at home. The company’s employees not only install the boiler, but also provide post-warranty service, and also install the boiler service maintenance.
    2. If you do not have the opportunity to order boiler service and installation directly from the company, you will order a specialist to install the boiler. Then the company that sold you the boiler itself sends a service department. It carries out commissioning work and also supplies equipment for service.
    3. If you live in a rural area and there is no nearby service centers, then you can install it yourself, following the instructions. Moreover, instructions for installing a wall-mounted gas boiler in a private house should be exclusively from the manufacturer. You also need to consider your heating system when installing.

    Possibility of installing a gas boiler with your own hands

    In short, installation of a gas boiler in a private house is possible for everyone. Follow the installation diagram and installation rules and everything will work properly. But the exception is the input, which must be carried out by gas service specialists. Also, boiler testing is carried out only by a specialized company, since they have certificates and licenses for this.

    However, it would be safer to rely on the qualified employees of a professional company. After all, only they will be able to carry out necessary work with excellent accuracy and literacy and provide the necessary security when operating the equipment.

    Gas boiler installation steps

    Chimney hole

    Before installing the pipe under the chimney, it is necessary to create a hole with exact size(usually 120 mm) and place a specific protective and sealing apron, onto which the chimney is connected.

    Boiler installation

    The boiler package usually includes, first of all, the boiler itself and the operating instructions, a warranty service coupon, a mounting strip, and an installation diagram.

    First of all, you need to decide on the installation location of the boiler. In European countries, boilers are usually installed in the kitchen. They do not violate harmony and fit into almost every kitchen interior. The equipment operates quietly.

    You can mount a wall-mounted gas boiler in a basement or basement. In this case, certain standards must be observed. The boiler must be installed by at least two people, even if it is not too heavy. A distance of at least 30 cm must be provided on all sides of the boiler. Regarding the height of the boiler: it is important that the control panel is located depending on the height of the owner.

    Important! Keep the control panel out of reach of children. You should not place the boiler obviously high above the floor, because in case of repair or service work it will be inconvenient for specialists and they will have to use a stepladder or stool.

    Next, we take the installation template (it is attached to the boiler), which is developed for several types of boilers. Using the template, you can mark the pipe outlets, chimney and fastenings and then install a wall-mounted gas boiler without any problems. In Europe, during the construction of a house, pipes are laid in accordance with a pre-selected gas boiler.

    Chimney installation

    The coaxial chimney has a diameter of about 100 mm, but the hole is made with a diameter of 120 mm or more. The play is necessary so that the chimney is directed towards the street at an angle of approximately 5 degrees. Condensation that forms during operation must be drained outside. After installing the chimney, the hole can be foamed with foam. A coaxial pipe consists of two pipes. A pipe with a diameter of 60 mm removes combustion products, and air from the atmosphere is sucked into the space between 60 and 100 mm. This is why the walls of the pipe are slightly warm.

    The mounting bolts have plastic dowels. They can be used for various walls.

    Connecting pipes to the boiler

    There are two options for connecting hot and cold water supply pipes, as well as the heating system. The first is that the pipes are supplied during the construction or renovation phase, taking into account the boiler you choose. However, it may be necessary to install a wall-mounted gas boiler if a heating system already exists.

    The supply pipeline is connected to the boiler supply, return to return. When installing a double-circuit boiler, it is necessary to connect a cold water supply circuit to the boiler. Output to the remaining connection hot pipeline and install it in the hot water supply riser.

    Do not forget to install a dirt filter on the return, a check valve on the supply, as well as ball valves on each connection.

    A dirt filter is necessary to prevent large debris from entering the boiler. Check valve needed to protect against sudden squeezing of coolant into the supply. The taps will be useful when servicing the boiler.

    As you understand, there is nothing complicated in installing a wall-mounted gas boiler and you can do the installation yourself.

    Gas connection

    This action can only be performed by a gas service employee. He will install a pipe for you according to the design, and the gas hose from the pipe to the boiler is installed independently.

    It is advisable to use cardboard spacers. Rubber gaskets can tear when clamped, which is very unsafe. Today, paronite cardboard gaskets are in high demand.

    Electrical installation

    Produced for boilers with modern automation and for models with a closed combustion chamber, as they are equipped with electronic devices. Usually limited to supplying electricity closer to the boiler and installing a plug to the boiler wire. Don't forget about phase dependence. If suddenly the boiler does not turn on, try simply turning the plug over and plugging it in again.

    Sockets and other connections must be located at a distance from the boiler so that in the event of an emergency, splashes do not get on the electrical wiring. The gas hose must have a yellow metal braid. It is necessary to prevent a breakdown of the hose in the event of lightning or overvoltage.

    In order to ensure the safe operation of a gas boiler, it is better to install a network voltage stabilizer.

    Starting a gas boiler

    After the wall-mounted gas boiler is installed, it must be filled with coolant. If the system is new, the pressure should be approximately 1.8 bar. When you first start, set the temperature at 45-50 degrees. Modern boilers quickly accelerate the system. Try to increase the temperature gradually to avoid temperature shock. If the boiler power is 24 kilowatts, then this is enough to heat a house of 300 square meters. meters if the house is well insulated. Try not to buy boilers of lower power, because even if the area of ​​the house is approximately 160 square meters. meters, but it is poorly insulated, then even 24 kilowatts may not be enough. It should also be taken into account that gas has different calorie content.

    Installation cost

    When contacting gas boiler installation specialists, many clients are interested in the cost of the work. It is important to understand that in different regions Pricing policies may vary.

    A comprehensive boiler connection with a hole and start-up starts from 5,000 rubles. This amount will be requested from you provided that additional work will be missing. If the heating system is made of metal pipes, then the cost of installing wall-mounted gas boilers will be higher. Around 6000-8000 rubles.

    Also budget 3000-4000 rubles for the purchase of materials (hose, pipes, taps, fittings, etc.)

    Only competent people who have access to this type of work can install a gas boiler. Even if the boiler is installed by company specialists, you need to know its operating system. The boiler itself is as safe as possible in operation as it has many degrees of protection.

    Helpful installation videos

    Efficiency autonomous heating directly depends on the correctness of the installation work. The gas boiler kit includes instructions that indicate the connection diagram of the unit. Installation of a double-circuit gas boiler must be carried out in full compliance with the requirements of technical documentation. If you are not sure what you can do correct installation DIY gas boiler, contact a specialist.

    When choosing a location for a gas boiler, you need to take into account all the requirements for the boiler room. If you choose a boiler with a closed type of firebox, then these requirements will become much more flexible. Modern models of gas units have just such fireboxes in their design. Installation of such a boiler is possible even in the kitchen, if its area is at least 12 m2.

    Gas boilers come in two types:

    • wall-mounted or hanging - mounted on the wall;
    • floor or stationary - installed on a special stand and attached to the floor.

    Requirements for installing a gas boiler

    Installation of a double-circuit gas boiler should only be carried out on solid walls. All wooden elements must be isolated or removed. The insulation is made of steel sheet with an asbestos layer. The boiler must have free space around it and easy access from any side. The installation height is at least 800 mm from the floor.

    All fasteners for installing the boiler are included with the unit and are designed for the weight of the structure. The use of homemade fasteners is prohibited.

    Installation of a stationary boiler is carried out on concrete screed, covered with steel sheet and thermal insulation material.

    Further installation and connection of wall-mounted and stationary boilers is carried out in the same way.

    The main requirement for installing a gas unit is a level position. If the boiler has a slope, the heating surface of the boiler will fail. The reason will be uneven distribution of the coolant, which will cause temperature imbalance and rapid wear of the heat exchanger.

    Gas boiler wiring diagram

    After completing the installation work, it is necessary to connect the boiler to the heating and water supply system. The wiring diagram for a floor-mounted heating boiler and a wall-mounted one are absolutely the same.

    Connecting gas to the boiler without the participation of a specialist is prohibited and is subject to a fine. Commissioning of the boiler is also carried out under the control of the gas service.

    All other elements can be connected independently. Each boiler has almost identical parts for connecting to communications:

    • a coarse filter is installed on the return line of the heating circuit;

    • A magnetic filter is a domestic water softener. He makes preparations cold water before heating it in the hot water supply circuit;

    • mesh filter;
    • gas filter;

    • flexible corrugated hose;

    • pressure gauge - a device for measuring pressure;

    • coaxial chimney is chimney, which is a substitute for the traditional chimney in modern boilers with forced draft;

    • a 3 bar safety valve is a mechanical system for automatically releasing coolant into the atmosphere when the pressure rises to critical values;

    • expansion tank is designed to compensate for growth and fall hydraulic pressure in the heating system;

    • shut-off valves;

    • An automatic air vent is designed to remove air from the heating system.

    When connected, all elements look like this:

    The most simple system heating and hot water supply when using a gas double-circuit boiler has the same design as traditional systems:

    The boiler is flow-through heating element to provide hot water supply and a closing link in the heating circuit.

    If you need to provide more complex system heating, then a similar scheme can be considered using another example:

    The hot water supply circuit remained unchanged, but additional elements appeared in the heating circuit:

    • the hydraulic arrow is installed immediately after the boiler. This is a simple vertical tank. Its purpose is to ensure constant circulation of water (while reducing coolant flow to consumers), remove air from the heating system, distribute coolant at different temperatures, maintain a temperature difference between the supply and return lines (this required condition normal operation of a gas boiler);
    • distribution manifolds on the forward and return lines are needed to evenly distribute the coolant between consumers;
    • individual circulation pumps for each heating circuit allow you to provide your own temperature regime in all rooms.

    Gas double-circuit boilers have affordable price and allow you to provide the room with cheap heating and hot water. The use of a gas unit is possible in a heating system of any complexity.

    In all cases, wherever it is planned to place the gas boiler, on the floor or on the wall, installation is carried out accredited specialists from Gorgaz.

    Gas supervision will allow installation, only if there is a certificate of conformity purchased equipment.

    Installation of a wall-mounted gas boiler. Materials and tools

    Having chosen the model you like, ask how to mount it on the wall and What is included in the kit for this? to the boiler (hooks, power dowels). If the heater is sold without mounts, they will have to be purchased additionally.

    Refuse to purchase if the unit is manufactured not a very reputable manufacturer. Either this is a novice supplier, or, more likely, not particularly concerned about quality.

    After paying for your purchase, you can take it home and begin mounting it on the wall. To do this you will need tools:

    • electric drill or hammer drill;
    • metal pipes;
    • building level(preferably laser).

    Using the latter, they check how level the unit is installed. This is especially important for condensing gas boilers. The slightest deviation from the vertical guarantees breakdown, and in the near future.

    Preparing the installation site

    It should be remembered that the room where the gas boiler will be installed is considered explosive and must meet many criteria established by law. Therefore, before placing an order, you should make sure that this is possible in your home, otherwise the purchase will become absolutely useless: Gorgaz will refuse to approve the procedure.

    Usually a wall-mounted boiler is installed in the kitchen. Except ventilation and through hole on front door(and in all cases it should go outside), pay attention to the wall itself. Make sure that it is strong and can withstand the installation of power fasteners, and even the boiler on it. For this reinforce the wall with wooden planks. The wall covering should be non-flammable. If there is a risk that it will catch fire in a fire, a layer of non-combustible material is placed on the wall, followed by a boiler.

    Photo 1. Approximate dimensions wall-mounted boiler and the norms for its placement in relation to adjacent walls, floor and ceiling.

    The unit, according to the standards, approximately 45 cm from the wall. Therefore, it must be mounted not directly on the panel, but on bars previously attached to the wall. Height from floor must be from 0.8 to 1.6 m. The remaining walls are tiled for aesthetics ceramic tiles.

    Attention! When installing a condensing gas unit, you must remember that it hang with a slant away from you, that is, the distance between the wall and the boiler at the top is somewhat smaller than between the wall and the bottom of the unit.

    Hanging the boiler

    The installation procedure consists of the following steps:

    • unpacking boiler;
    • reconciliation of markings on the case with data in the certificate and invoices for the device;
    • screwing the bracket or other suitable fasteners;
    • removing factory plugs from the unit;
    • flushing internal pipes.

    Now the boiler can be hung in the desired place. Check horizontality boiler, adjust its position if necessary.

    All that remains is to connect boiler to the system. If the master has already come on call, you can involve him in the work.

    Chimney in a private house

    The most common boilers found in homes are with closed firebox. This is understandable: they are easier to use, connecting them to the chimney is easier - just screw them on coaxial pipe. In private houses, the coaxial chimney is removed out through the wall.

    Photo 2. Scheme of the smoke exhaust from the gas boiler through the nearest wall. Movement shown flue gases and air.

    There are no strict requirements for the pipe hanging height, since draft is provided by the built-in fan. An open firebox involves the installation of an individual chimney, and special attention will have to be paid to the cross-section of the pipe.

    Attention! When purchasing a pipe, look at what it is made of. Suitable for work only wear-resistant materials, not afraid of the vagaries of temperature and the effects of combustion products.

    Connection to the heating system

    What needs to be done actually the same as when connecting heating. The difference lies in the taps and pipe diameters.

    A filter is placed on the “cold” pipe, which will prevent dirt and metal particles from entering the heater.

    Shut-off valves with detachable connections(so-called American women). It is much easier and faster to work with them, and if the faucet fails, it is easy to replace it with a new one.

    Cold pressure pipes connect on the left, orienting from the center of the unit, hot - from right side.

    You might also be interested in:

    How to connect to a gas source

    The gas line branch is connected with a flexible connection to the pipe on the heating unit. Shut-off valve must be equipped with a hermetically sealed filter. Sealing The threaded connection is made using paint and tow.

    Do not use rubber hoses , they do not last long. Usually the Gorgaz representative stipulates this at the very beginning. Best suited corrugated hose made of of stainless steel .

    In the room where the wall mounted heating device, required gas sensor connected to relay. If a leak occurs, the sensor gives a command to block the gas.

    Will work at the same time sound alarm, notifying the owner of a breakdown.

    Advice. This part of the work, as well as the first launch, is mandatory entrusted to an accredited representative of Gorgaz with permission from a self-regulatory organization!

    Double-circuit and single-circuit gas boilers

    Differences in operating principle of these two units are as follows. Dual-circuit the heater will provide not just hot water from the tap, thanks to it all systems work as before, as if the hot water had never been turned off - This includes water supply, batteries, and even heated floors. The heat exchanger heats the water coming from the cold supply system.

    Photo 3. Diagram showing the differences between single-circuit and double-circuit wall-mounted boilers. The first requires a boiler.

    Dual circuit unit only contains three-way valve, which regulates the direction of coolant flow. The heated water is directed towards the central heating. When a hot tap is opened, a sensor inside the unit switches the three-way valve to another position - water flows into the heat exchanger, where it heats the water.

    Attention! Bye hot tap open, the so-called a priority hot water , that is central heating closed. Users often regard this nuance as an inconvenience.

    So that you don’t have to wait for a hot stream (usually it appears half a minute or even more after opening the tap), It’s better to buy a flow-type boiler with built-in boiler. However, this option is only suitable for apartments or small houses. For a large mansion or estate it is unprofitable.

    Single-circuit The boiler is useful only for heating cold water coming from the water supply.