If you own a CSR Edmonds EP series hybrid rooftop ventilator you can add the Tornado motor and propeller and dramatically improve its performance under power.

The Tornado EP upgrade is easy to install – it mounts below the EP motor mount inside the shaft.

Here is a picture of one EP400 being upgraded. In this case the motor is being moved down in order to save cost and prevent wasting the motor for this small demo unit. For the larger units a new motor and blade are supplied. 

Call me anytime for more details.