Window in the gas boiler room. SNiP requirements
Window size in the gas boiler house SNiP
According to the current SNiPs, as well as the Instructions for the placement of units for heating and hot water supply of the Ministry of Construction of Russia, when placing units with a capacity of up to 150 kW in a separate room located in a residential building, the room must meet a number of requirements. Including, the window in the gas boiler room must be of a certain size.
The height from floor to ceiling in the boiler room must be at least 250 cm. If the gas boiler is supposed to be installed at some elevation, then the ceiling height is calculated from the top elevation point. The boiler room must have a door. Doors should also be installed at entrances to adjacent rooms.
The volume of the gas boiler should be at least 15 cubic meters. If a geyser for hot water supply is also installed in the boiler room, the volume of the boiler room does not increase according to SNiP standards.
Window area in the gas boiler house SNiP
The boiler room must have a window or several windows facing the street with a total glazing area of at least 0.5 square meters. If the volume of the gas boiler is larger, then the area of the window should be larger according to the norms - for each additional cube of volume, it is necessary to increase the window area in the gas boiler by at least 0.03 square meters. A window is needed in the boiler room for ventilation in case of leaks.
In the boiler room, an air flow from the street should be organized through an opening of at least 150 x 200 millimeters. Or under the door in the boiler room there should be a gap below the floor of at least 20 millimeters.
SNiP on a window in a gas boiler room
The room is separated from adjacent rooms by walls or partitions with a fire resistance limit of 0.75 hours, and the fire spread limit should be zero. Natural lighting is installed based on the area of the window glazing in the gas boiler room.
When placing heat generators in the basement or basement floor, an exit directly to the street is required. A second exit to the utility room is allowed, while the door must be fireproof, and the width of the canvas is at least 800 millimeters.
In practice, these requirements are not always met. Inspectors can turn a blind eye to some deviations during acceptance. They only look hard enough at the volume of the boiler room, the size of the window in the gas boiler room, the presence of doors and hoods. But they always design gas boilers, referring to the norms of SNiP.
How to make a boiler room
In this article, we will consider how to properly make a boiler room in a private house (cottage) and what are the requirements for such boiler rooms.
We are talking about boilers, whose power does not exceed 350 kW.
Important! The following norms for boiler rooms must be observed! This is necessary so that there are no problems with gas workers and firefighters, and to avoid breakdowns of boiler equipment, which, as you understand, is very expensive, and for your own safety
Types of autonomous boiler houses
Autonomous boiler rooms are of the following types:
- Built-in: located on any floor of the building.
- Attached: Attached to an existing home.
- Roof: located on the roof, as its name suggests.
- Separate: the boiler room is located at some distance from the house.
boiler room requirements
No matter how the boiler rooms are located, the requirements for them are the same. These ones:
- the height of the boiler room from floor to ceiling is not less than 2.5 m;
- the volume and area of the boiler room should be such that it is convenient to maintain the equipment located in the boiler room (not only the boiler, but also auxiliary equipment). The minimum volume for a boiler room is 15 m3.
How to calculate the volume of a room? We take the floor area of the room where the boiler is supposed to be installed, and multiply by the height to the ceiling. And we get volume.In fact, the norms need to be clarified with the gas services, in my opinion (according to the author's rumors), with a boiler house capacity of up to 60 kW, the volume is allowed to be 9 cubic meters;
the boiler room must be separated from other rooms by walls made of non-combustible material (brick, concrete, cinder blocks, etc.).
If the walls are wooden (in a log, frame or in a house made of timber), then the distance from the boiler to such walls is at least 400 mm. You can use a fire screen: we attach a sheet of asbestos cardboard 5 mm thick to the wall, on top of which a sheet of roofing iron is attached. Then the distance from the boiler to such a wall is allowed to be half as much. The dimensions of such a screen must be made larger than the dimensions of the boiler: at least 150 mm to the sides and at least 300 mm above the boiler;
- there is such a thing as "technological dimensions". The distances from walls to equipment, distances between different devices, as well as the width of the passages are implied. So, these dimensions should be such that there is sufficiently comfortable access to all boiler room equipment, including stopcocks, valves, etc.;
- the boiler room must have a window. The size of the window opening in the boiler room is made at the rate of 0.03 m2 per 1 m3 of the volume of the room; For example, the volume of the boiler room is 15 m3. We multiply this number by 0.03:
15 x 0.03 \u003d 0.45 m2 - the minimum area of \u200b\u200bthe window opening.
A window in the boiler room is needed not only for lighting, but also for protection against an explosion if gas accumulates: during an explosion, glass will fly out of the window, but the building itself will remain intact;
supply and exhaust ventilation is required. Its power is taken from the calculation of three times the volume of the room per hour.
This means that with a boiler room volume of 15 m3, 45 m3 of air must pass through the hood per hour. And the same 45 m3 per hour must enter the boiler room plus the volume for air for burning fuel (gas).
For ventilation in the upper part of the room (in the ceiling) there must be an exhaust device - an exhaust pipe. The diameter of the exhaust pipe is indicated by the gas services in the project. In any case, its diameter must be at least 130 mm;
since air flow into the boiler room is required, there must be holes for this. The area of such holes is calculated as follows: 0.01 m2 for every 10 kW of boiler power.
This requirement is implemented quite simply: you can drill holes in the lower part of the boiler room door so that the total area of \u200b\u200bthese holes is sufficient for the influx of the required volume of air. And you can put ventilation grilles above the door;
- the section of the chimney pipe must be no less than that of the boiler;
- if there are two or more boilers in the boiler room, then each boiler must have a separate - independent - outlet channel;
- we put the gas boiler in the basement with a concrete floor and without sewer drains on a concrete base with a minimum thickness of 50 mm;
- in front of the boiler there must be a free area of at least 1 m2 - for comfortable maintenance of the boiler;
- the door to the boiler room must necessarily open outward - in case of an explosion: the door will be torn off its hinges, but the building itself will remain intact (more or less);
- gas boilers must be grounded.
