Ventilation is necessary for any room, but for this system to work effectively, it is important to know what kind of equipment to use, as well as where to install it. For example, in bathrooms and bathrooms, such devices are needed more than anything else. Many manufacturers today offer household exhaust fans that have different capacities. When choosing, it is important to pay attention not only to this characteristic, but also to the control method, which affects the ease of operation and cost. There are mechanical and electronic models, but both may have an operation indication on the panel.
They usually have a non-return valve and solve the problem caused by high humidity. But buying any device does not mean solving the problem. It is important to choose the right unit so that the exhaust fan copes with unpleasant odors and high humidity. In order to make a choice, it is necessary to consider several models.
Review of hoods with valve: ERA D 125
You can purchase this device for 1,400 rubles. It is an axial fan that can be installed in bathrooms, bathrooms and kitchens. The premises will be protected from moisture from neighboring apartments and unpleasant odors thanks to the non-return valve. The design features a detachable, ultra-slim front panel based on white ABS plastic that matches most interiors. Mounting is carried out to the wall using screws.
Specifications
The above hood with check valve has a duct diameter of 125 mm. The capacity reaches 140 m3 per hour. The design does not include a timer. Version is not splash-proof.
Power is 10W. Overall dimensions are 180x180x99.5 mm. The device weighs 0.65 kg. Powered by 220 V. Before buying a device, you should consider that it does not have a humidity sensor.
Overview of positive features of the model
If you want to install a hood with check valve in your bathroom, then you should consider the SLIM 5C model, which has many advantages, among which we should highlight:
- protection against reverse thrust;
- possibility of operation for the purpose of periodic or continuous ventilation;
- thin bezel;
- pretty high heating temperature;
- designed for continuous operation;
- overheating exceptionengine.
If we consider the benefits in more detail, then you should pay special attention to the protection against reverse thrust. This is ensured by a double-leaf spring-loaded plastic design that eliminates back draft from the ventilation duct.
By installing this hood with a check valve in the bathroom, you will hardly notice the device, because it protrudes only 9 mm above the surface. The scope of the device is quite wide. You can install it not only in the bathroom and in the kitchen, but also in other household premises.
Mounting is carried out exclusively on the wall. The connection is made with an air duct with a diameter of 125 mm. The installation is to be carried out in a ventilation shaft. The whole structure is made of ABS plastic, including the front panel, axial fan valve, housing, check valve, and impeller. Removable front panel.
The heating temperature can reach 40°C. The design provides for a ball bearing motor, the service life of which is extended and can reach 40,000 hours. The described hood with a check valve has a low power consumption. You can use it for continuous work. The unit is maintenance free.
Review of the hood brand Soler & Palau SILENT-100 CZ
This equipment can be purchased for 1,800 rubles. It is an overhead axial fan with a power of 8 watts. Polluted air will not enter the room through the device. The device processes 95m3 per hour. It is enclosed in a waterproof case. By installing the described hood with a non-return valve, you can control it mechanically. The noise level during operation is 27 dB.
The device has one speed. The equipment does not have height adjustment and a timer. The installation diameter is 100 mm. Body color is white. The hood corresponds to the second class of electrical safety. It is powered by 230 V. Its overall dimensions are 15.8 x 15.8 x 8.4 cm. The fan weighs 0.57 kg.
Review of ERA 4C fan
If you want to purchase a hood with a check valve, you should pay attention to the model mentioned in the subheading. Its cost is only 380 rubles. The fan is overhead, and its power is 14 watts. Due to the non-return valve, polluted air will not enter the room. The device is capable of processing 97 m3 per hour. It has a waterproof case.
This device does not have a timer and height adjustment, like the device described above. The equipment can operate at one of two speeds. Management is electronic. The noise level is kept at around 35 dB. The base is plastic. The installation diameter reaches 100 mm. This exhaust fan with check valve has a mosquito net. The overall dimensions of the device are 15x15x8.4 cm, its weight is 0.48 kg.
Review of the brand hood Electrolux EAFR 100
AsAn alternative market offer is the EAFR 100 model from Electrolux, which you can purchase for 1,500 rubles. The fan is axial, during installation it is superimposed on the surface. Power reaches 15 watts. The equipment does not let polluted air into the room.
The device is capable of processing 100 m3 of air per hour. The body is waterproof. There is no timer and height adjustment in the design. The noise level is 30 dB. The base is plastic. The installation diameter is 98 mm. Dimensions: 15x14 x7.5 cm, unit weighs 0.46 kg.
Review of ERA D 100 hood
Before you buy a bathroom hood with check valve, you should familiarize yourself with its main characteristics and features. An excellent example is the ERA D 100 model. Its cost is 750 rubles. The equipment is able to carry out periodic and continuous ventilation in rooms for various purposes, among them:
- bathrooms;
- shower rooms;
- bathrooms;
- kitchen.
The product has a durable body. The engine has a built-in thermal protection and a bronze bushing. The manufacturer completes the equipment with a check valve. The front panel has an indicator for displaying the operation of the product.
Model specifications
If you want to purchase a toilet hood with a non-return valve, then you should pay attention to the model that was described above. It is installed on an air duct with a diameter of 100 mm. timerand the protective performance of the equipment does not provide. The noise level during operation reaches 35 dB.
Overall dimensions are 150x150x85 mm. The device weighs 0.5 kg. It is powered by 220 V. There is no humidity sensor in the design. Capacity reaches 97 m3 per hour.
Good Features
The above model of hood for bathrooms and kitchens has many advantages. Among them, it is worth highlighting the protection against reverse thrust and the possibility of wall mounting. The equipment can be used for intermittent and continuous ventilation.
The design is classic, which allows you to fit the device into any interior. The equipment is powered by an engine with built-in thermal protection. The front panel, impeller and housing are made of durable plastic.
Features of placing the valve on the kitchen hood
If you decide to install a check valve on a kitchen hood, you should take into account that the system can have one or more air intake points. The latter through the ventilation duct will go outside or into the mine. In this case, a single valve, which is located in the duct, will be sufficient to exclude back draft.
If the system is more complex due to the presence of several holes and hoods for natural ventilation, then slightly different rules for placing valves are used. First, it will be necessary to install such a device on each branch. This is required to avoid redirecting air towards the hood when it is idle. Second, installationcheck valve on the hood provides for the presence of another device at the outlet of the ventilation system. With complete sealing of the channel, this is not necessary, but practice shows the validity of installing a valve in this place.
Thirdly, the device must be located at the point to which convenient access will be provided. This is due to the fact that the equipment requires periodic cleaning from grease deposits and adhering dust, otherwise the dampers will be completely closed during reverse thrust.
Near the entrance to the mine of an apartment building, special attention must be paid to the installation of the valve. The general ventilation system is a cavity with a positive temperature, protected from sunlight. Moist air periodically enters there, which creates ideal conditions for the development of microorganisms. Rodents, birds and insects often live there. The air in such mines rarely meets the requirements that apply to living quarters. Even in the case of regular sanitation of the shaft, the possibility of air entering the apartment through the return draft should be excluded.
Check valve for extractor hood in the kitchen can be installed taking into account the need for alternating operation of forced and natural ventilation. In this case, a tee is installed near the ventilation grill, and the valve itself is located on the outlet for natural ventilation. Another solution is to use a special design in the form of a grid with two holes for both types of ventilation.
Valve manufacturing features
Despite the fact that the price is not high for the check valve for the hood, you can also make it yourself. To do this, take care of the availability:
- vent grille;
- soft records;
- heat gun with glue.
As for the plates, a film from a fluorographic apparatus can act as them. On the inside of the grate, it is necessary to glue the plates so that they are fixed on opposite sides. The middle parts should move freely. This device is the simplest check valve. The grate is installed in place, and it will work without letting air out of the mine.
In conclusion
A rather common phenomenon is the occurrence of reverse thrust, which entails many negative consequences. By installing a check valve on the ventilation, you can solve this problem. Before purchasing such a device, it is important to understand its design features.
Among other varieties, one-leaf gravitational devices should be distinguished, in which the air flow from the room will put pressure on the sash. If there is no movement, it closes. Another variety are butterfly valves using a spring. They are also called a butterfly and have 2 curtains in the design that fold under excess pressure.
