How can I make ventilation in the garage?
There are three ways to provide the car with "a breath of fresh air".But, before turning to their characteristics, we learn how powerful the air flow should be for the safe stay of the car and the driver in a confined space.
This minimum indicator is prescribed in the SNiP - the main desktop "book" for all architects and builders. Here is an excerpt from the rules concerning the auto-house: "the garage ventilation system is calculated so as to ensure a constant inflow of fresh air in the volume of 180 liters per hour."
It should be noted that the norm is valid only in the post-Soviet space, the requirements for air exchange in garage boxes are much higher abroad( 360 l / h).In this regard, most motorists are guided precisely by the foreign benchmark, considering it more reliable and safe.
And now we will pass directly to the methods of organization of the garage "wind" of the required force. The ventilation device in the garage is:
- Natural. It is built on the principle of natural occurrence of air flow by means of the temperature difference between the indoor space and the street.
- Combined. This scheme of ventilation of the garage operates on the principle of forced drawing of exhaust air from the room and the natural influx of its fresh portion from the street.
- Mechanical. In this case, for the air exchange in the room meet special devices( candy bar, module), which forcibly draw in fresh and throw out the dirty air.
How do I ventilate the garage? It all depends on your financial capabilities. Ideal in all senses, the mechanical system will cost at least $ 1200( for a module, a candy bar will pull $ 2000).Yes, and install expensive equipment will be a specialist. If you want to do everything yourself, then choose a natural or combined system of garage ventilation. And we'll explain below how to do it.
Loving the "breeze": natural ventilation in the garage with their own hands
This is the cheapest and affordable way to organize air exchange in the inner room. Already during the construction of the garage box, two holes in the walls for this ventilation scheme should be provided:
- Supply : the hole is located at the floor( at a minimum of 10 cm).The lead pipe passing through it is lifted even higher above the ground( by 30 cm), and the end is closed with a grid and a conical roof.
- Exhaust : the hole is at the ceiling( 10 cm below).The outlet pipe rises above the roof( 50 cm) and also protects against rain, insects with a small hood and net.
For proper functioning of the scheme of natural ventilation of the garage, it is necessary that the intake and intake openings are located diagonally on opposite walls of the room. Now let's calculate the diameter of the input and output channels of the system. For a garage, use the following ratio:
15 mm diameter duct = 1 m2 garage
For example, you have a standard garage of 6 m × 4 m. Its area is 24 m2.This means that the diameter of the air ducts installed in the room is 360 mm( ie 24 × 15 mm).
Indeed, the scheme is quite simple and does not require any major alterations in the garage. The car owner purchases a set of pipes, checks according to the formula the diameter of the holes, which are already provided for the construction of the structure. Often the ventilation of the cellar in the garage is also arranged, where vegetables and pickles are stored in the winter season.
But, keep in mind that cheap is not always profitable. Here there are the same problems as with natural ventilation in a private house: there is no temperature difference - there is no fresh air intake. That is, in areas with a warm climate, the inactivity period of this scheme can reach 7-8 months!
Another difficult condition for a technical room such as a garage - a difference in height between the supply and exhaust ducts must be a minimum of 3 m. Only in this case will the wind flow work to the maximum. Do not forget to install the locks on the intake and exhaust holes and properly insulate the pipes at the outlet."Doors" will allow you to regulate the power of the air flow in the winter.
Coming "breeze": combined supply and exhaust ventilation for garages
This scheme in its structure resembles the previous one. Two holes are provided in the room: one for inflow of fresh( at the floor), another - for exhausting the exhaust air( at the ceiling).Only here is no longer strictly dependent on the location of the holes. They can be placed even on one wall and on the same level. The only thing to remember is that the input and output channels can not be placed against each other, otherwise the air "chain" will close and a fresh breeze will not enter the room.
The main "chip" of combined circuits is forced exhaust ventilation in garages by means of special fans built into the outlet ducts. Unlike the natural method, this method of air exchange works on the principle of pressure build-up: the exhaust gas is forcibly expelled from the premises, and fresh air rushes into the vacant space. By the same principle, the ventilation of the basement of the garage is arranged, where thanks to constant blowing, fresh vegetables are kept longer.
The combined ventilation circuit is used all year round, the exhaust fan consumes a minimum of energy( 100 W) and is installed in a thoroughly insulated duct. There are special models of devices that provide for silent operation and minimal heat loss during the winter.
Forced exhaust ventilation in garages and cellars - the best option for the ratio of price / quality. Calculation of the width of the channels is carried out by analogy with the natural method of arrangement, but in the maintenance plan the system requires a constant check of the correct operation of the fan. Alternatively, you can set the relay to automatically turn it off.