Flexit Nordic CL4

Maximum airflow: approx. ±111 l/s @ 100 Pa
Right-hand model, electric heater
Left-hand model, electric heater

Flexit Nordic CL4 ventilation units are designed to provide high energy efficiency in Nordic climate conditions. Connection to a kitchen hood is easy thanks to the bypass solution, and the unit uses a high-efficiency rotary heat exchanger that enables up to 85% heat recovery.

Thanks to its low construction height, the CL4 is ideal for ceiling installation or mounting in cold attic/roof spaces. The unit operates very quietly — below 35 dB(A) — and its light weight and height under 30 cm make installation flexible and convenient even in limited spaces.

All Nordic series models are controlled by default via the Flexit GO app. The system can be expanded with various accessories, such as a control panel, humidity sensor, pressure sensor for a kitchen hood, or CO₂ sensor. The control system also supports demand-controlled ventilation.

Standard features include cooling energy recovery, and free/night cooling can also be activated via the Flexit GO app. In case of high extract-air humidity, a defrost mode activates to ensure reliable operation even in cold weather conditions.

Key advantages:

• Ceiling or cold attic installation

• Very quiet operation — below 35 dB(A)

• Built-in humidity sensor

• Lightweight and low construction height (< 30 cm)

• Convenient control via app and cloud services

• Configurable door system for different installation solutions