FAQs

How to find the unit and serial numbers on Ventry^® Fans and Lentry^® Lighting Systems.

Photos showing Ventry^® Fans in action, during live fire trainings at local fire departments, show our company’s commitment to innovation. Improvements are applied to ALL applicable models, retrofit when possible, and sometimes are available to existing customers for free!

In fire fighting, battery powered fans are popular right now. We discuss our concerns and why we continue to solve our customers' ventilation needs with gasoline and electric PPV Fans.

This FAQ covers ventilating large structures; ventilation using multiple portable PPV fans, ventilation of super-sized (large!) structures using small fans, and portable fans as an alternative to built-in smoke removal systems.

This page summarizes the four choices which lead you to the best Lentry^® Power & Light System for your needs. Choose from 2 generators, 6 light heads and 3 heights. You’ll also decide if you want more than one separate telescoping light/pole.

In the context of portable scene lighting, don’t judge a light by the watts! Efficient lights can not be quantified in this way. Watts equal energy draw, not light emission.

VSI does not sell and advises against using exhaust extensions on gas-powered fans because we believe they do not work, are unsafe, and may void your warranty.

How do I get a case with my portable Lentry Light Tower? Which models include the case?

Many products advertised as “scene” or “site lights” (to large areas) are actually work lights or fancy flashlights. Here is a guide to separating the imposter work lights from the true scene lighting systems.