Construction:
The turbine design is such that it permanently lubricates the upper and lower ball bearings and ensures a long life without maintenance. The construction, on other hand, is a rigid spider typer riveted at every connection and tested to withstand winds of 110 M.P.H. It has 21 airfoil curved vanes with rolled edges to deflect water and provides 100% rust-free all-aluminum construction.
Easy Installation:
The installation procedure of the turbine is very easy. The whirlybird turbines' exclusive vari-patch base adjusts to a 12/12 roof pitch for use on many roof applications. It reduces energy bills and the likelihood of winter ice buildup when installed properly.
Main Features:
- Permanently lubricated upper and lower ball bearings that ensure long life and no maintenance.
- All-aluminum rust-free construction.
- Rigid spider-type structure.
- Riveted at every connection.
- 21 air-foil curved vanes with rolled vane edge to deflect water.
- Large flashing for easy installation.
- Easy installation.
- May reduce energy bills.
- May reduce winter ice build-up.
- Big Whirly—14” moves up to 37% more air than the 12”.