Mechanical ventilation system from RENSON! You can enjoy fresh, healthy air in your home or office with the help of a demand controlled ventilation system!

With efficient and partly or fully automated mechanical ventilation, Renson has a suitable solution for every project. Choose demand-driven ventilation system based on sensors to save energy and keep your indoor climate always healthy!

Igényvezérelt szellőztető rendszer energia felhasználása

What is Demand-driven ventilation?

Renson’s fully automated systems monitor the air quality and take action by themselves where needed. Continuous and controlled ventilation is your only guarantee of a healthy indoor climate. The polluted inside air is discharged and continuously replaced by fresh outside air.


The ventilation standards NBN D50-001 and NEN 1087/8088 define 4 systems:

A, B, C and D

  • System A: Natural supply, natural extraction
  • System B: Mechanical supply, natural extraction
  • System C: Natural supply, mechanical extraction
  • System D: Mechanical supply, mechanical extraction

Next to these systems, Renson® offers demandcontrolled ventilation under the names:

  • System C+®: Natural supply, demand-controlled extraction per room
  • System D+®: Demand-controlled supply & extraction with heat recovery
  • System E+®: Natural supply, demandcontrolled mechanical extraction with heat recovery for domestic hot water and heating.
RENSON ENDURA hővisszanyerős szellőztető rendszer beépítve

The Renson® C system

It is a not demand-controlled system with central extraction of polluted air. It must be combined with window vents to ensure healthy indoor climate by a constant and optimal flow of air.

A ventilation window louvre allows fresh air to enter and polluted air to exit, thanks to the no cross-ventilation and minimal energy losses due to the self-regulating non-return valve. Ideal to install into living room or bedroom windows.

RENSON HEALTHBOX 3.0 beépített rendszer


The Renson® C+ systems use a combination of self-regulating Invisivent window ventilations and demand-controlled discharge ventilation (using room sensors) to create a pleasant and healthy indoor climate.

Each type C ventilation system in a home consists of at least a ventilation unit with an integrated fan. However, Renson® will keep innovating to raise this type of ventilation to a higher level to an intelligent, demand-controlled system, where the ventilation system adapts the discharge rate according to the needs and living pattern of the residents and the measured air quality.

RENSON HEALTHBOX 3.0 szellőztetőgép


RENSON D+ System mechanical ventilation

The Renson® D+ system is based on a combination of demand-controlled ventilation (2 fans for air supply and air extraction) and heat recovery to create a pleasant indoor climate.

Benefits of Ensura Delta:

  • Can be used in new constructions
  • Mechanically supplied fresh air
  • Mechanically drainage of used air
  • Demand-driven ventilation thanks to integrated air quality sensors
  • High-efficiency heat exchanger for energy saving
DISCOVER renson endura delta
RENSON ENDURA hővisszanyerős szellőztetőgép

With the help of RENSON mechanical ventilation systems, you can create an extremely efficient, energy-saving, comfortable, reliable and quiet ventilation system. Demand-controlled ventilation is the most modern way of continuously supplying fresh air.

Ventilation grills

Ventilation louvres guarantee proper air circulation indoor.

Continous lovre system

Linius cladding system in aluminium with a contemporary look and hihg quality.

Window vents

RENSON window vents helps drive out damp and keep your home healthy.