Types of ventilation systems

Professionals advise using two types of ventilation systems:

• duct ventilation system;
• ductless ventilation;

The difference between these systems is obvious from their names: the first design has a ventilation duct, while the second provides air flow without one.

When working with bathrooms or toilets, it is advisable to avoid creating separate channels. It is common practice to create an opening in the wall and discharge the exhaust air into the general ventilation branch of the building. This procure is not only more convenient and less expensive, but also more rational. Of course, this is applicable in multi-story city buildings. But if we are talking about a private house, then ventilation should be design at the construction stages, during the process of erecting the walls.

Air supply to the bathroom and toilet is usually carri engineer data through one channel – in the bathroom, after which an additional intermiate opening is creat in the wall between the bathroom and the toilet for the passage of exhaust air.

An exhaust fan design for use in bathroom ventilation through a toilet can have a variety of appearances and sizes. But the most important thing is the fan power. It must What products sell well on marketplaces on the eve of February 14 the current in the wiring.

The fans have the following design differences:

• The axial model moves air parallel to the axis of the device. This is achiev thanks to special blades. These systems are develop exclusively for ductless structures;
• Diametric models, which have a rather low productivity, have special drum-type wheels in their design;
• The centrifugal type device, which has a spiral body, guarantees extremely high productivity, however, during operation, the system creates quite a lot of noise;
• The combin centrifugal-axial device is quieter and italy numbers with the same efficiency as a simple centrifugal system.

Norms ad requirements

Let’s study SNiPs and other regulatory documents in order to understand how much new air should enter the bathroom or toilet during ventilation.

According to regulatory documentation, bathrooms with dimensions of about 10 square meters or more must receive new influxes of air masses once every hour.

More than 30 cubic meters should leave the bathroom and toilet every hour. If the bathroom is large, then the calculation is bas on the area of ​​the small living room and multipli by 1.5 (due to high humidity). These are the ventilation standards, these numbers are the minimum requirements.

Selection criteria

It is reasonable to install a compact filter fan – this device can not only spe up the process of natural ventilation, but also clean the air from unpleasant odors, parasites and bacteria.

It should be understood that in cases where natural ventilation in toilets through bathrooms cannot be implement (it is not possible to guarantee an inflow of even 20 cubic meters of fresh air per hour), it is necessary to install forc ventilation systems.

There are three types of ventilation:

• exhaust system;
• supply system;
• mix.

As for exhaust systems, we have already discuss them – air comes from outside, and the exhaust masses are discharg into ventilation ducts.

The principle of supply ventilation is different – outside the bathroom or toilet, air masses are pump in, after which they are forc out into the channels. This is the most optimal and rational system for apartments.

When ventilating a bathroom in a private home, it is best to use mix systems. They combine exhaust and supply systems. Air is remov and renew with the greatest efficiency thanks to mix technologies.

Decorative grilles are us to hide the structures. They can not only hide the technical details of ventilation from view, but also make the bathroom interior more stylish.

Household ventilation systems are:

• channel;
• radial.

Both types are design for installation at the outlets of ventilation ducts. A duct fan, as a rule, has a rather miocre design, because it is hidden in the duct itself. However, a radial fan is usually equipp with an attractive case; these systems not only provide effective air exchange, but also fit perfectly into the design of your interior.

Diagnostics of the current system, if any

Before you start upgrading the ventilation system or cleaning its filters, you ne to conduct a schul diagnostics. The condition of the ventilation device install according to the principle “into the bathroom through the toilet” should be studi thoroughly. Do not be lazy in removing the grates and cleaning the inputs and outputs of the channels from dust.

First, you ne to find the reasons for poor draft and check the ventilation system. To do this, place a sheet of paper in front of the ventilation opening. If the paper sheet is strongly attract to the ventilation niches, then there is draft. If the sheet is motionless, then there is a clear lack of ventilation draft in the system.

It is important to remember that the design of the system is such that the pressure difference is achiev due to the temperature difference, therefore on a hot summer day the draft is several times weaker than in winter or autumn.

However, even if there is draft and the exchange of air masses is excellent, it is necessary to understand that this does not guarantee 100% complete functionality of the ventilation systems.

It is necessary to check the condition of the channel as much as the situation allows. Channels can be clutter with various objects, cobwebs, dust or concrete and brick fragments after a major renovation. After the system is clean, there are no more obstacles in the air’s path, and the ventilation devices themselves are clean, you can begin to modernize and improve the system itself.

The test with the sheet of paper must be carri out twice: the first time with the doors clos, the second time with them open.

It is advisable to check with the door open twice –

with open air sources (open a window or front door) and with them completely clos.

If after sealing the draft has dropp to almost zero, then you ne to think about additional fans or compact ventilation devices.

Specializ grilles are install in the doors of bathrooms and toilets – through them, air enters inside even when the doors are completely clos.