The basic principle of a functional ventilation system


How does the air in your home get exchanged — or does it at all? The best place to start investigating your ventilation system is the bedroom. Find out where fresh air comes in, apart from window ventilation. If you can’t figure it out, it’s time to take action.


Natural (gravity-based) ventilation relies on simple physical laws. Warm air is lighter than cold air and rises. As it rises, it exits through an exhaust duct. This creates a suction effect in the exhaust flue, resulting in negative pressure inside the home. The negative pressure then draws fresh air in through air inlets or vents, causing the air to circulate.

Therefore, the air inlet vent is the most important component of gravity-based ventilation.
Effective ventilation means that fresh air flows into the home through air inlets located in bedrooms and living spaces, circulates throughout the home, and exits through exhaust vents located in the kitchen, walk-in closet, and bathroom. One of the key functions of ventilation is also to remove excess moisture.

A good rule of thumb for the number of air inlets is one vent per 20 m² of floor area. The correct number of vents ensures balanced airflow. Evenly distributed incoming air does not create a draft.

In most homes, ventilation could be significantly improved in just one day with an investment of a few hundred euros.

Below are two excellent options for bringing well-filtered fresh air into your home.

 

How does the air in your home get exchanged — or does it at all? The best place to start investigating your ventilation system is the bedroom. Find out where fresh air comes in, apart from window ventilation. If you can’t figure it out, it’s time to take action.

Natural (gravity-based) ventilation relies on simple physical laws. Warm air is lighter than cold air and rises. As it rises, it exits through an exhaust duct. This creates a suction effect in the exhaust flue, resulting in negative pressure inside the home. The negative pressure then draws fresh air in through air inlets or vents, causing the air to circulate.

Therefore, the air inlet vent is the most important component of gravity-based ventilation.
Effective ventilation means that fresh air flows into the home through air inlets located in bedrooms and living spaces, circulates throughout the home, and exits through exhaust vents located in the kitchen, walk-in closet, and bathroom. One of the key functions of ventilation is also to remove excess moisture.

A good rule of thumb for the number of air inlets is one vent per 20 m² of floor area. The correct number of vents ensures balanced airflow. Evenly distributed incoming air does not create a draft.

In most homes, ventilation could be significantly improved in just one day with an investment of a few hundred euros.