from a structural engineering point of view? What types of window fans are distinguished?
Due to the technical innovations in the field of sealing walls, windows and doors, living spaces must be regularly ventilated to ensure air exchange.
This applies in particular to rooms where excessive moisture content can become a problem, such as in bathrooms, kitchens or basements. For fully automatic ventilation, you can install window ventilators, some of which are even equipped with sensors for temperature and moisture content.
Among other things, the fans are divided into active and passive models. Depending on the model, even old windows can be retrofitted with a window ventilator in a few simple steps.
How does air exchange work via fans installed on/ in the window?
A so-called window fan is a ventilation system connected to the window, with the help of which the interior can be ventilated – often without having to open the window for this. In this way, they help to regulate humidity so that mold & co. can be kept at bay. But they also provide good and safe ventilation of one’s own four walls from an energy point of view and ensure permanent, stress-free ventilation of one’s own four walls when the occupants are absent.
Window fans ensure a constant exchange of air via the ventilation flaps during free cross-ventilation. Wind and temperature differences are used to exchange the air in an apartment. Fresh air continuously flows in through the ventilation flaps on one side of the facade and stale air flows out on the other.
Windows and French windows can be easily equipped with integrated window ventilators with or without ventilator support. Window fans can be retrofitted or are already installed in special window models. They can be inconspicuously mounted above, below, or to the side of the window and in the window profile.
Find out: How to clean a window fan
The basic operation of window fans
In general, all models are a ventilation system that provides continuous ventilation of indoor spaces. Thus, not only fresh air enters the rooms, but also the moisture content is always within an ideal range so that mold spores do not form and viruses and bacteria are quickly transported outside.
Installing window ventilators will ensure air exchange even when you are on vacation or business trips. As with manual ventilation, cross ventilation is ideal. The flaps of the ventilators on one side of the window.
Window fans for a precise overview of the indoor climate
A technically more sophisticated solution is available with active window fans. Unlike simple mechanical solutions, active window ventilators are electronically operated and feature numerous additional functions. These include:
- Temperature and/or humidity sensor
- Step regulation
- Fan support
- Heat recovery
- Various filters for pollen or fine dust
All models are electric window fans, which therefore rely on a power source and cost the most in price comparisons for both operation and purchase.
The Best Window Fan
Holmes Dual Blade Twin Window Fan
- 3-speed settings
- Fits virtually all windows
- Use Location: living room, bedroom
- Electrically reversible airflow
Tips for buying windows fan
Buying a windows fan that suits your needs will allow you to stay cool during the summer, especially because you will be able to achieve better results. In any case, the main characteristics to take into account when we talk about a window fan will be the following:
The power of the fan is something essential to take into account, especially because it cannot be too low. In order for you to have a good fan for the summer, it is best if the power is between 50 and 60W, which is ideal for medium-sized rooms. However, you should choose the power well, especially because too high a power for a very small room will mean that you will spend more electricity unnecessarily.
Speeds will allow you to easily adjust the airflow you will receive from your fan, and for this reason, you should make sure you choose the one that best suits your needs. In all cases, you can find fans that have 3 speeds, which are the most common.
However, you will also find options that have up to 5-speed levels for you to adjust to your needs. This way, you will be able to adapt your window fan to what you really need and without having to worry about the airflow.
- Noise level
This is an aspect that you should consider when you go to buy your fan, especially because the noise level depends on the comfort you will have with the use of that fan. For this reason, you should make sure that the window fan is a good size, but at the same time, it should be as quiet as possible. If your fan is too noisy you will not be able to sleep well, and you may have nightmares and even headaches.
Although it may seem a bit irrelevant, design is something fundamental that you should take into consideration especially if you are looking for a fan that fits your spaces. Choose a window fan that has a minimalist design and one that will fit seamlessly into all of your spaces. Another important point to consider is the oscillation because this way you will be able to ventilate your spaces much better and have great effectiveness.
Best 2-speed Window Fan
Comfort Zone Twin Window Fan
- 2-speed dial control
- Auto-locking accordion expanders
- Suitable for windows between 22-1/2″ and 33″ wide
Types of window fans
There are several types of fans by mode of operation. Modern devices usually have several types of air supply at once, which puts them in a more advantageous position.
- Supply air. A fan of this type can only supply cold air into the room.
- Exhaust. Such a device is able to remove hot air from the apartment. But it does not supply cold air there.
- Supply and exhaust (reversible). The gadget equipped with two modes of operation at once, allowing you to simultaneously remove musty air from the room and fill it with fresh and cool air.
Bionaire Window Fan
We may earn a commission if you make a purchase of a product through one of our links at no additional cost to you.
- Electronic control with LCD screen and remote control
- With three speeds
- Remote Control
TOP 3 Window Fans
Comfort Zone Expandable Twin Window Fan
Genesis Twin Window Fan with 9 Inch Blades
Includes an adjustable thermostat with LED indicator lights. Draw in fresh air or push out indoor air with the intake and exhaust option. The extendable side panels ensure a secure fit.
Lasko Electrically Reversible Window Fan
Features of window fans
The window fan has a special design for installation in a specially prepared window opening. Typically, the window usually has a “telescopic” mounting (pipe in the pipe) with snap fastening or another option for mounting on the glass. Axial fan models for installation on windows, there are automatic louvers at the back of the grille or check valves in the connecting flange.
A window fan generally uses little electricity. Models with air capacity over 450 m3/h are optionally equipped with wired remote controls that realize the “reverse” function and provide the choice of one of five possible speeds. Some models are equipped with a built-in motion sensor. When a person enters the room, the cooker hood automatically turns on.
In the absence of people, kitchen exhaust fan operation depends on a built-in timer. Window axial fans are equipped with a grille in white and are installed on window openings. The mechanism is usually installed indoors (in models for outdoor installation, the fan is protected from exposure to precipitation). Some models are equipped with a special gasket to eliminate vibration during operation.