Free added value through energy generation
With the Regel-air® ventilation system FFL, the air is channelled in a controlled manner through the window rebate.
From the point of entry until the fresh air flows into the room, it is preheated to over 10 °C in the window rebate when outside temperatures are low. The air enters the room via the upper part of the window and mixes directly with the warm indoor air.
This effect contributes significantly to an improved energy balance for the home ventilation with Regel-air®.
Measurement results for preheating in the window rebate:
| Date/ Period |
Temperature Outside air |
Temperature Indoor air |
Temperature at Regel-air ® inside |
Temperature at profile (inside) |
Difference outside/inside Regel-air ® |
| 30 January 2012 –13 February 2012 |
-5.4 °C | 22.0 °C | 7.5 °C | 17.4 °C | 12.9 °C |
Made in Germany
Europe-wide delivery
Over 25 years in business