Installation of a wall-mounted gas boiler. Competent installation of a wall-mounted gas boiler in a private house How to install a wall-mounted heating boiler

An autonomous heating system is the dream of many homeowners. Most of them choose gas heating, a significant disadvantage of which is the mandatory installation of equipment by certified specialists. However, control over the actions of invited employees is still needed, right?

Here you will learn how, according to building regulations, the installation of a floor-standing gas boiler should be carried out. We will tell you how to prepare a room for installing a heat generator, how to correctly organize the removal of combustion products. Our tips will help you build a safe and efficient system.

The information provided for review is based on regulatory documents. To optimize the perception of a difficult topic, the text is supplemented with useful illustrations and video instructions.

Those who are sure that the installation begins with its purchase are greatly mistaken.

We will start with the collection of permits. Simultaneously with obtaining the necessary papers, you should select and prepare a place for installing the heating unit, while taking into account the following regulatory requirements:

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Gas is still the cheapest type of fuel. Accordingly, the cheapest heating is obtained precisely on natural gas. True, the installation of a gas boiler is associated with certain difficulties - the premises must comply with fire safety standards.

A separate room is required for the installation of powerful gas boilers

Gas boiler installation standards

To ensure that there are no troubles when taking the gas boiler into operation, it is necessary to choose the installation site in accordance with current regulations. The installation of a gas boiler in a private house (single-apartment or blocked) is regulated by SNiP 31-02-2001, and the installation rules in apartment buildings are prescribed in SNiP 2.08.01.

For private houses

According to the norms, a gas boiler can be installed in a ventilated room, which is located:

on the first floor of the house;
in the basement or basement;
in the attic:
gas boilers up to 35 kW (according to MDS 41.2-2000 up to 60 kW) can be installed in the kitchen.

With regard to the installation of boilers in the kitchen, two norms are currently in force at once. According to one document, heating devices with a power of no more than 35 kW can be placed, according to another - no more than 60 kW. And we're talking about heaters. Gas stoves or other appliances that use gas do not count.

What to do? You need to find out what norms are followed in your GorGaz. After all, it is their representatives who will take the equipment into operation. Actually, the designer should tell you all the subtleties, but it is also desirable to know this - you will need to prepare the room for installation.

Where to put

Now about where and how you can place gas equipment of different capacities. We are talking about gas boilers and their power is summarized:

with a power of up to 150 kW inclusive - in a separate room on any floor, including the basement and basement;
from 151 kW to 350 kW inclusive - in a separate room on the first, basement or basement floor, as well as in a separate attached room.

More powerful installations in private homes are not used.

Requirements for kitchens in which a gas boiler is installed

When placing a flowing gas water heater or a gas heating boiler with a power of up to 60 kW in the kitchen, the room must meet the following standards:

There is one more thing that is not spelled out in the norms, but which exists: the installation of a gas boiler is only allowed in a room with doors. In light of the latest trends - removing partitions, and instead of doors - this can be a problem. Without a door, permission will not be signed. Exit - put or . Another option is glass doors. They do not "load" the interior, but they are perceived precisely as doors.

All these requirements must be met. With violations, you simply will not sign the act of acceptance.

Requirements for individual rooms

Similar, but there are some differences:

Ceiling height - not less than 2.5 m;
The volume and area of the premises are determined by the convenience of maintenance, but should not be less than 15 m 3.
Walls leading to adjacent rooms must have a fire resistance limit of 0.75 hours and a zero limit for the spread of fire along the structure (brick, concrete, building blocks).
The hood with the same requirements: for outflow - a three-fold exchange, for inflow in the same volume, plus air for combustion.
The room must have a window. Glass area - not less than 0.03 m 2 per cubic meter of volume.

If the equipment is installed with a power of 150 kW or more, one of the prerequisites is the presence of an exit to the street. A second exit can be equipped - to a utility room (not residential). It can be a pantry or a corridor. Doors must be fireproof.

Please note that when calculating windows, the area of \u200b\u200bglass is considered, and not the size of the window opening. Moreover, in some cases, they require the presence of at least one glass with an area of \u200b\u200bat least 0.8 square meters. If it is problematic to enlarge the windows, you can make a similar window in the door (the standard does not say that it should be in the wall).

How to attach boiler rooms

Sometimes in the house there is no way to allocate a separate room. In this case, the boiler room is attached. The standards for ceiling height, volume, glazing and ventilation remain the same as for individual rooms, only specific standards are added:

Please note that the extension must be registered. Without official documents on it, no one will carry gas to you. And one more thing: when designing it, lay down all the norms without deviations, otherwise they will not be accepted. If the installation of a gas boiler is planned in an existing room, some deviations may be overlooked or some compensation may be offered (if there is a missing volume or ceiling height, they may be asked to increase the glazing area). For newly built buildings (and extensions too) there are no such discounts: they must include all the standards.

United kitchens

Today it has become fashionable to have or. It turns out a single large space in which it is easy to implement design ideas. But, the gas service regards such a room as residential and prohibits the installation of gas equipment.

It will not be possible to solve the problem with a studio apartment, but there is a way out with a combined one. If you are just planning to combine the kitchen and the living room, when you draw up the documents, call the resulting room the kitchen-dining room. This space is not residential, so there will be no restrictions. If the papers are already framed, you can try to redo them or go the other way - install a sliding partition. True, in this case, the alteration of documents will be required.

Place for installation of a gas boiler

Speaking specifically about apartments, they install gas boilers in them mostly in the kitchens. There are all the necessary communications: water supply, gas, there is a window and an extractor hood. It remains only to determine a suitable place for the boiler. For such an installation, wall-mounted (mounted) boilers are used. They are mounted on several hooks attached to the walls (they usually come with the kit).

As for installation in other rooms of an apartment or house, as a rule, none of them pass the requirements. For example, the bathroom does not have a window with natural light, the corridor usually does not fit in size - there are not enough tolerances from the corners or to the opposite wall, there is usually no ventilation at all or it is not enough. With pantries the same trouble - there is no ventilation and windows, there is not enough volume.

If there are stairs to the second floor in the house, often the owners want to put the boiler under the stairs or in this room. In terms of volume, it usually passes, and ventilation will have to be made very powerful - the volume is considered to be in two levels and it is necessary to ensure its triple exchange. This will require several pipes (three or more) of a very large cross section (at least 200 mm).

After you have decided on the room for the installation of a gas boiler, it remains to find a place for it. It is selected based on the type of boiler (wall or floor) and the requirements of the manufacturer. The data sheet usually details the distances from the wall to the right / left, the installation height relative to the floor and ceiling, as well as the distance from the front surface to the opposite wall. These may vary from manufacturer to manufacturer, so read the manual carefully.

Installation standards according to SNiP

Gas boilers can be installed on fireproof walls at a distance of at least 2 cm from it.
If the wall is slow-burning or combustible (wooden, frame, etc.), it must be protected by fireproof material. This may be a three-millimeter sheet of asbestos, on top of which a sheet of metal is fixed. Plastering with a layer of at least 3 cm is also considered as protection. In this case, the boiler must be hung at a distance of 3 cm. The dimensions of the fireproof material must exceed the dimensions of the boiler by 10 cm from the sides and bottom, and from above must be 70 cm more.

Questions may arise regarding the asbestos sheet: today it is recognized as a material hazardous to health. You can replace it with a layer of mineral wool cardboard. And keep in mind that ceramic tiles are also considered a fireproof base, even if they are laid on wooden walls: a layer of glue and ceramics just give the required fire resistance.

The installation of a gas boiler relative to the side walls is also regulated. If the wall is non-combustible, the distance cannot be less than 10 cm. For combustible and slow-burning, this distance is 25 cm (without additional protection).

If a floor standing gas boiler is installed, the base must be non-combustible. A non-combustible stand is made on a wooden floor. It must provide a fire resistance limit of 0.75 hours (45 minutes). These are either bricks laid on a spoon (1/4 of a brick), or thick ceramic floor tiles that are laid on top of an asbestos sheet fixed to a metal sheet. The dimensions of the non-combustible base are 10 cm larger than the dimensions of the installed boiler.

Installing a wall-mounted gas boiler involves several logical steps. At the first stage, the purchase and delivery of the boiler, the purchase of the necessary material for installation and the collection of the necessary tools are carried out.

Material for installing a wall-mounted gas boiler

Installation of a wall-mounted gas boiler begins in the store. Of course, this is not the installation itself, but preparation for it. When buying or ordering a wall-mounted gas boiler, you need to find out or inspect whether the boiler is equipped with fasteners. Usually these are hooks and power dowels. If this fastener is not included with the boiler, it must be purchased.

It should be noted that "reputable" manufacturers of boilers complete the boiler with special installation patterns, according to which marking and drilling of holes for fixing the boiler is carried out.

Note: Let me remind you that when choosing a wall-mounted gas boiler and buying it, you must definitely be interested and require a certificate of conformity for the selected boiler model. Without this certificate, legalization (obtaining permission to connect) will be very problematic.

Gas wall hung boiler installation tool

For work, you need to prepare the following tool:

Electric drill or hammer drill. A drill is needed to drill holes for fasteners of a gas boiler.
Building level, more than 1 meter long.

The building level plays an important role in the installation of a gas boiler, and especially a condensing gas boiler. Any roll of a condensing gas boiler will lead to its failure in the shortest possible time. Not bad, replace the building level with a laser level, this will improve the accuracy of the installation.

Preparing the wall for the installation of a gas boiler

The room where the wall-mounted gas boiler will stand must meet a whole list of requirements for the furnace room. Often, wall-mounted gas boilers are placed in the kitchen and the place in the kitchen must be prepared for the installation of the boiler.

In addition to ventilation, ventilation and other rules, special attention should be paid to the wall on which the boiler will be placed.

The wall for hanging the gas boiler must be strong. The material or construction of the wall must be suitable for the installation of a load-bearing fixture on which the boiler will hang.
If the wall for hanging the boiler is made of plasterboard, then in advance in the frame of the plasterboard structure, it is necessary to provide and lay firmly fixed wooden blocks at the installation site of the fasteners.
If the material of the wall or its finish is potentially combustible, a non-combustible gasket from 3 mm thick and 10-15 cm larger than the boiler is installed between the wall and the boiler body.
According to the norms, a wall-mounted gas boiler should be 40-45 mm from the wall. Therefore, the gas boiler is not mounted on the wall, but on bars previously fixed to the wall.

Hanging a gas boiler on the wall

Mark the installation level of the gas boiler. Height from the floor from 800 to 1600 mm.
Fasten a non-combustible material (asbestos) and a piece of metal sheet (galvanized sheet) to a wooden wall.
Other types of walls, for an aesthetic installation of the boiler, veneer with ceramic tiles.
If the boiler is not equipped with a special bracket, install bars at the level of the gas boiler mounting in order to achieve the indentation of the boiler from the wall.
Mark the places for fixing the gas boiler. Usually, the packaging or instructions contain the exact dimensions of the boiler mounting points or an installation template. It is important to maintain the exact horizontal level of the gas boiler.

Important! The condensing gas boiler should hang with a slight slope, "away from you", that is, the distance from the boiler to the wall above should be less than the distance to the wall below.

Important to remember! Whatever material the heating system in the house (apartment) is made of, the boiler is connected only with metal pipes.

Preparing the gas boiler for hanging

Before the shed of the gas boiler:

The boiler is taken out of the package;
The marking plate on the boiler body is checked against the certificate and invoices;
The bracket included in the boiler kit, or other selected fasteners, is screwed to the mounting place on the wall;
All factory plugs are removed from the boiler;
It is MANDATORY to flush the system of internal pipes.
The gas boiler is hung in place.

After hanging, the horizontal position of the boiler is verified, if necessary, an adjustment is made. Everything! Hanging, or rather, the installation of a wall-mounted gas boiler is completed. The next step is to connect the gas boiler to the system.

If he does not dream of autonomous gas heating with hot water supply, then surely any householder seriously thought about it, both in a city apartment and in a private house. Only it today is able to reliably provide a comfortable temperature in the house cheaper than the central one. However, installing a gas boiler with your own hands is a complex, responsible matter that requires a permit. Actually, it only makes sense to take it on yourself only if you have sufficient funds to purchase a double-circuit boiler with a boiler and a complete set of automation, and your housing is suitable for installing a boiler according to specifications.

The second case when you need a gas boiler is if you are not rich, and there is no hot water in the house at all and is not expected. In this case, you need the simplest budgetary single-circuit flow-through boiler for hot water supply, which allows you to wash the dishes and take a shower. A gas boiler is more expensive than an electric boiler, but, given the cost of installing a gas meter, at current rates it pays off in a winter of a year and a half, depending on the place of residence. If, again, you can put it in your apartment, and you are not afraid of walking through the authorities.

Two big differences

The boilers mentioned above are the extremes of a huge variety of models of gas water heating devices. They are available for self-installation. Any other gas heating boiler for installation requires professional work. However, every cloud has a silver lining - specialized firms take upon themselves the preparation of the premises with the paperwork. But why can only the "tips of scissors" be installed by yourself?

Simple water heater

The simplest boiler is really very simple: a gas burner, a heat exchanger - that's all. It is enough to connect water, gas to it, bring the exhaust into the chimney - and you can use it. If the papers are already issued; otherwise, an inevitable large fine.

Home boiler room

A double-circuit boiler with a boiler and full automation is so “smart” that it is as easy to install as the simplest one. Automation is important not only for simplicity: a complete system with a double thermostat and a microprocessor monitors the temperature in the house and outside, according to a given program, reduces heating to a minimum according to the sanitary standard when no one is at home (for example, when everyone is at work). The gas consumption of such a boiler is 30-70% less than with manual or semi-automatic adjustment, and the more severe the weather, the more savings.

But such a home boiler room has a serious drawback: if you find yourself in a natural disaster area and the power supply is interrupted, the automation “stalls”, and the boiler goes into the minimum space heating mode. Therefore, such a boiler requires an additional expense for a guaranteed power supply. It is not difficult to provide it yourself, see below.

Where it is possible and where it is impossible to put a gas boiler

The rules for installing a gas boiler provide the following requirements for the installation of a HEATING boiler, regardless of whether it also provides domestic hot water or not:

The boiler must be installed in a separate room - a furnace (boiler room) with an area of at least 4 square meters. m., with a ceiling height of at least 2.5 m. The rules also state that the volume of the room must be at least 8 cubic meters. Based on this, you can find indications of the admissibility of a ceiling of 2 m. This is not true. 8 cubes is the minimum free volume.
The furnace must have an opening window, and the width of the door (not the doorway) must be at least 0.8 m.
Finishing the furnace with combustible materials, the presence of a false ceiling or raised floor in it is unacceptable.
Air must be supplied to the furnace through a through, non-closable vent with a cross section of at least 8 sq.cm. per 1 kW of boiler power.

Note: 8 cubes free - with a boiler power of up to 30 kW. For power from 31 to 60 kW - 13.5 cubic meters; for power from 61 to 200 kW 15 cubic meters. For boilers with a closed combustion chamber, the volume of the furnace is not standardized, but the dimensions must still be observed.

For any boilers, including wall-mounted hot water boilers, the following general standards must also be met:

The boiler exhaust must exit into a separate flue (often incorrectly referred to as a chimney); the use of ventilation ducts for this is unacceptable - life-threatening combustion products can get to neighbors or other rooms.
The length of the horizontal part of the flue must not exceed 3 m within the furnace and have no more than 3 angles of rotation.
The outlet of the flue must be vertical and raised above the ridge of the roof or the highest point of the gable on a flat roof by at least 1 m.
Since the products of combustion form chemically aggressive substances during cooling, the chimney must be made of heat- and chemical-resistant solid materials. The use of layered materials, e.g. asbestos-cement pipes, permissible at a distance of at least 5 m from the edge of the boiler exhaust pipe.

When installing a wall-mounted hot water gas boiler in the kitchen, additional conditions must be met:

The height of the boiler suspension along the edge of the lowest branch pipe is not lower than the top of the sink spout, but not less than 800 mm from the floor.
The space under the boiler must be free.
A strong fireproof metal sheet 1x1 m should be laid on the floor under the boiler. Gas workers and firefighters do not recognize the strength of asbestos cement - it wears out, and the SES prohibits having anything containing asbestos in the house.
The room should not have cavities in which combustion products or an explosive gas mixture can accumulate.

If the boiler is used for heating, then the gas workers (who, by the way, are not very friendly with the heating network - it always owes them for gas) will also check the condition of the heating system in the apartment / house:

The slope of the horizontal pipe sections must be positive, but not more than 5 mm per linear meter in terms of water flow.
An expansion tank and an air valve must be installed at the highest point of the system. It is useless to convince you that you will buy a “cool” boiler in which everything is provided for: rules are rules.
The condition of the heating system must allow it to be pressure tested at a pressure of 1.8 atm.

The requirements, as we see, are tough, but justified - gas is gas. Therefore, it is better not to think about a gas boiler, even a hot water boiler, if:

You live in a block Khrushchev or other apartment building without a main flue.
If you have a false ceiling in your kitchen, which you do not want to clean, or a capital mezzanine. On a mezzanine with a bottom made of wood or fiberboard, which, in principle, can be removed, and then there will be no mezzanine, gas workers look through their fingers.
If your apartment is not privatized, you can only count on a hot water boiler: allocating a room for a furnace means redevelopment that only the owner can do.

In all other cases, you can put a hot water boiler in the apartment; heating wall is possible, and floor - very problematic.

In a private house, any boiler can be installed: the rules do not require that the furnace be located directly in the house. If you make an extension to the house from the outside under the furnace, then the authorities will only have fewer reasons for nit-picking. In it, you can put a floor gas boiler of high power for heating not only the mansion, but also office space.

For private housing of the middle class, the optimal solution is a wall-mounted boiler; under it is not required, as for the floor, to arrange a brick or concrete pallet with sides of half a meter. Installing a wall-mounted gas boiler in a private house also does without technical and organizational difficulties: a fireproof closet for a furnace can always be shielded, at least in the attic.

Power supply

The automation of heating boilers consumes little electricity, but according to the rules, the boiler still needs a separate wiring branch with a 20 A automatic machine, like for a boiler. For backup power, any computer UPS is well suited. Kilowatt will "hold" the automation for half a day or a day. This is quite enough to take the necessary measures in case of emergency.

About the flue

The cross-sectional area of the house flue for it depends on the required power of the boiler (see below). At any power, the diameter of the flue must be at least 110 mm and not less than the diameter of the exhaust pipe. The dependence of the diameter of the flue on the power of the boiler is as follows:

up to 24 kW - 120 mm.
30 kW - 130 mm.
40 kW - 170 mm.
60 kW - 190 mm
80 kW - 220 mm.
100 kW - 230 mm.

Boiler selection

Power

The fact that the power of the boiler must be sufficient is obvious. But it should not be excessive, especially if the heat exchanger is cast iron. Hot cast iron cracks from drops of condensate from the flue. There is another dangerous effect: the dew point temperature of the exhaust gases is approximately 56 degrees Celsius. If the heating return water temperature is lower, acidic condensate may form in the combustion chamber. What does this have to do with excess power? Too powerful a boiler will quickly warm up the system and go into standby mode before it cools down. The thermal inertia of a powerful heat exchanger is great, and while it warms up again, acid dew can fall out.

With a properly selected boiler power, the temperature in the combustion chamber will be 80-90 degrees. The allowable difference in power is quite large, but if you put a 60 kW boiler in a medium-sized private house, then acid rain from the inside will quickly disable it.

The required boiler power for a particular room is determined by heat engineering calculation. It is easier for residents of high-rise buildings: the data is available in the DEZ, the technical inventory bureau or the owner. In any case, you can use the approximate data by calculating an intermediate value for yourself. The maximum power values are given for cases of a minimum outside temperature of -25/-40 degrees:

One-room apartment on the middle floors - 8/14 kW.
Corner apartment 60 sq.m. total area on the top floor of the block Khrushchev - 20/28 kW.
Private house 100 sq.m common - 24/38 kW.

Boiler

The purpose of the boiler is the accumulation of hot water for domestic needs. If you look at the instructions for the boiler, then the power there will be indicated through a fraction, for example - 10/22 kW. The first digit is the heating output for average conditions; it determines the gas consumption by 80%. The second power, maximum - for the rapid heating of domestic water.

If the boiler is empty, the boiler stops heating the heating for a while (it does not have time to cool down) and heats domestic water at the maximum. The gas consumption is, of course, the maximum. If water is taken from the boiler little by little, then it will be heated in operating mode, without force majeure. Based on this, the capabilities of the boiler can be judged by its capacity:

2-10 l - wash hands and wash dishes.
30-50 liters - take a quick shower.
100 l - wash thoroughly in the shower.
150 liters or more - you can take a bath and connect a washing machine to the hot water supply.

Note: if you already have it, it is advisable to leave it by turning off its machine. It will make a good hot water accumulator, and in case of problems with the gas boiler, you can turn it on.

Video: expert opinion on the choice of gas boilers

Documents for the boiler

Let's say you equipped a furnace in compliance with all requirements. Buying a boiler Still early. First of all, check if the old papers have been lost for gas, and take them out into the light of day:

Contract for the supply of gas, if the boiler is heating. Subconsumers may only install hot water boilers.
All documents for the gas meter. Any boiler cannot be installed without a meter. If it doesn’t exist yet, there’s nothing to be done, you need to set it up and draw it up, but that’s another topic.

Now you can buy a boiler. But, having bought, it is too early to install:

In BTI, you need to make changes to the registration certificate at home. For privatized apartments - through the organization operating the house. In the new plan, a closet under the boiler should be applied, and clearly marked: “Furnace” or “Boiler Room”.
Submit an application to the gas service for the project and specifications. As part of the required documents and the technical passport for the boiler, so it must have already been purchased.
Install the boiler (see next section), except for the gas system. This can be done while the gas workers are preparing the project, if the premises are approved.
Call a specialist to make a gas piping.
Submit an application to gas workers for commissioning.
Wait for the arrival of the gas service engineer, he will check everything, draw up a conclusion on suitability and give permission to open the gas shut-off valve to the boiler.

Note: gas workers are not supposed to give permission to private individuals to work on gas equipment. Therefore, to connect gas to the boiler, you will have to call a specialist or then “resolve the issue” with the inspector during commissioning. As a rule, the first one is cheaper.

Boiler installation

Adjacency of the boiler body close to any of the walls is unacceptable; it is forbidden. After installing the boiler in place, it is tied up - connecting three systems: gas, hydraulic and electric. The gas piping should be done by a gas specialist as indicated, and lastly, when everything else is already connected.

Electrical and hydraulic piping can be done independently. Here the main guiding document is the instructions for the boiler. A typical boiler hydraulic piping diagram is shown in the figure. For any boiler, the following conditions must be strictly observed:

Water and hot gases in the boiler heat exchanger must go countercurrent, otherwise it can simply explode with any automation. Therefore, it is extremely important not to confuse, through negligence or for the sake of ease of installation, cold and hot pipes. After hydrobinding, inspect the entire system carefully again, then rest for an hour, and inspect again.
If antifreeze has been poured into the heating system, drain it completely and flush the system twice with clean water. The admixture of antifreeze in the water entering the heat exchanger is also explosive.
Do not neglect the "mud filters" - coarse water filters. They should be located at the lowest points in the system. The accumulation of dirt between the thin fins of the heat exchanger also creates a dangerous situation, not to mention exorbitant gas consumption. At the beginning and at the end of the heating season, drain the sediment through the sumps, check their condition and, if necessary, flush the system.
If the boiler has a built-in expansion tank and a de-airing system, remove the old expansion tank, and close the old air valve tightly, after checking its condition beforehand: air leakage will also create a dangerous situation.

Video: an example of installing a wall-mounted gas boiler

Outcome

Installation of a gas boiler is technically and organizationally complicated. You can install only the simplest water boilers or expensive, fully automated home boilers on your own. But the connection of the boiler to the gas supply system (gas piping) must still be carried out by a specialist in the gas service or a certified installation organization. Otherwise prohibited by the rules for the installation and operation of household gas appliances.

The premises in which the gas boiler will operate are specified in SNiP 31-02-2001, DBN V.2.5-20-2001, SNiP II-35-76, SNiP 42-01-2002 and SP 41-104-2000 - these documents exclude or minimize any emergency situations. Premises for placing gas boilers fall under the classification of fire and explosion hazards, therefore, when designing, planning, installing and configuring equipment for gas heating, all requirements for a room for installing a gas boiler must be strictly observed.

General requirements for the installation of gas appliances

In the room intended for the installation of a gas boiler, according to the above standards, there must be good natural lighting: 1 m 3 should account for at least 0.03 m 2 of the window opening area (but not windows - partitions, frames and imposts are not taken into account). Be sure to equip the room with a supply and exhaust ventilation system according to the following rules: the total volume of direct and reverse air flows per hour, multiplied by 3, is equal to the volume of the entire exhaust device. In addition to the window equipped with a window, a door with access to the street is installed in the room. The table shows the requirements for the volume of the room:

Attention!

For gas-fired units with a power of more than 6000 W, 0.2 m3 should be added for each extra unit of power.

Supervisory requirements for a room for installing a gas boiler stipulate that it is allowed to operate any appliances for heating an apartment on each floor of a multi-storey building and in any room of the apartment. Kitchens in multi-storey buildings are also suitable for these requirements, as they are already equipped with the appropriate communications. The only condition is that the total thermal power of all devices for heating water and heating an apartment (boilers, boilers, heating elements, heating radiators, batteries or registers) should not exceed 150 kW in total.

The height of the ceilings in the room is 2 meters or more. The room in which the gas boiler will be installed and operated must be separated from neighboring rooms by solid refractory walls. Material for walls or partitions must have a temporary fire resistance limit of 0.75 hours (45 minutes). The room for the boiler must be planned in such a way that in the event of a fire in operation there is no possibility for the fire to spread throughout the apartment.

Attention!

Gas boilers of the TLO brand, operating on the principle of natural circulation of the coolant, can only be installed and must be operated in the basement of the house or in the basement.

Installation of a gas wall-mounted boiler - kitchen requirements

Ceiling - 2 meters and above.
The total volume of the kitchen is more than 7.5 m 3 , ventilation is installed, a window is installed and there is a door leading to the balcony.
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 m 2.

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.

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.

Rules for installing a floor-standing gas boiler

In a house under construction, it is necessary to plan a separate room for installing a gas-fired boiler. The room should be with natural air flow through the grate in the door or through a hole in the wall.
Be sure to make a separate hole for supply and exhaust ventilation - it must be under the ceiling.
A hole in the wall for a chimney, a hole below the chimney for a soot pan (for cleaning the chimney), which is made 20-30 cm below the main chimney.
The chimney is made airtight so that smoke and carbon dioxide do not get back into the room. For tightness, a smaller diameter pipe is installed inside the large chimney pipe, through which the products of gas combustion are removed.
The room intended for the installation and operation of the gas boiler must be spacious and provide free access and operation, maintenance and repair of the boiler. The floor in the furnace must be made of non-combustible materials - concrete screed, natural stone, paving stones. The furnace must be connected to the water supply for the operation of the water heater, and equipped with a sewer.
The area of the room for the boiler is 4 m 2, the height of the ceilings in the room is at least 2.5 m 2.
The outer door should be 80 cm wide.
The top of the chimney must be above the roof. The cross section of the chimney pipe must be larger than the diameter of the boiler outlet.
To supply power to the boiler room, an electrical panel with grounding must be equipped.
The gas line is brought into the room in advance. A separate valve must be installed for each gas appliance.
The walls of the boiler room are plastered - it is strictly forbidden to finish the walls with combustible materials (MDF, fiberboard, plastic).

It is forbidden to store flammable liquids and objects near the furnace and in the room itself. The foundation under (gas heating unit or gas water heating unit) should not freeze in winter, so its depth should be below the level of soil freezing in this region. The air from the vent must be clean, that is, the chimney must be located far from the vent. The room or building in which the gas boiler is installed cannot be equipped for other purposes.

Rules for installing wall-mounted gas boilers in an apartment

Usually, in an apartment, a gas boiler is installed in the kitchen, since a gas main is already connected to it, there is water supply and sewerage. That is, a priori, all the requirements for the installation of gas equipment have already been met - it remains only to connect the boiler. This state of affairs automatically reduces the cost of laying utilities and energy. It is forbidden to install a gas boiler in rooms with high humidity - in the bathroom, laundry room, etc.

There are several additional requirements for wall-mounted boilers:

The wall or partition for hanging the boiler must be able to withstand it - do not hang the equipment on a plasterboard or other light partition.
If the wall is decorated with combustible materials (wallpaper, vinyl, plastic, MDF, fiberboard), then a 3 mm thick non-combustible material gasket is installed between the wall and the wall. In this case, the boiler must be fastened with special hardware, which provide a distance from the boiler body to the wall of at least 4-5 cm.
The minimum distance from the boiler to the ceiling and walls of the room is 0.5 meters. The distance from the boiler to the floor is 0.8 meters.

Before installation and start-up of gas equipment, all relevant documents must be obtained. The main condition for installing a boiler in a private house that runs on gas is that an agreement is first concluded on connecting the gas main, and a project for the installation of gas equipment and gasification of the house is drawn up. These documents are developed and approved by the gas supplier in the region.