![LHD Propeller Roof Ventilator PRV](https://www.tcf.com/wp-content/uploads/2020/06/LHD-Propeller-Roof-Ventilator-PRV.png)
LHD
Low Profile Hooded Roof Ventilator, Direct Drive
Application
The LHD Low Profile Hooded Roof Ventilator provides cost effective, general-purpose ventilation of commercial buildings, with a pleasing low profile design that minimizes extension above the roof line. A wide array of adjustable pitch, cast aluminum impellers are available to meet specific performances and application requirements. Twin City Fan & Blower also offers a complete line of options and accessories such as roof curbs, backdraft dampers, disconnect switches and special coatings.
Sizes (impeller diameters)
- 14 to 48 inches (355 mm to 1,220 mm)
Performance
- Airflow to 33,500 CFM (56,900 m3/hour)
- Static pressure to 1 inch w.g. (250 Pa)
![](https://www.tcf.com/wp-content/uploads/2018/06/Certs-UL.png)