Ruck® roof fans with EC motor are part of the DVN EC series! These are very powerful fans that can tolerate very high temperatures. The motor is mounted outside the air stream and can therefore discharge air up to 120°C! The maximum capacity of the fans varies between 2360 and 7240 m³/h. These roof fans are more energy efficient due to the EC motor inside the fan. In addition to the DVN EC series there is also the DVNI series with extra insulating layer, which makes the system much quieter!