The Hartzell Blog

Stay tuned for informative blogs covering Hartzell’s products, services, industry insights, and customer stories, showcasing our expertise and commitment to you.

September 2026

Spark-Resistant Blowers How to Specify the Right Construction for a Combustible Airstream

By David Long

When an airstream carries combustible dust or flammable vapor, the fan is often the one part fast enough to ignite it. Here's how to specify spark-resistant construction from the airstream up, including what changes when the fan is fiberglass and the AMCA types don't fit.

August 2026

Industrial Pressure Blowers 101 How to Know When Your Application Needs a Blower, Not a Fan

By David Long

When a system fights back with filters, long duct runs, and tight bends, a standard industrial fan can run out of pressure long before it runs out of air. A pressure blower is the same family of equipment built to develop the higher static pressure those systems demand. This post covers where the pressure ceiling sits, what makes a blower different, the applications that need one, and the numbers to have ready before you spec.

August 2026

Industrial Blowers vs Fans What's the Difference and Which Do You Need?

By David Long

The words fan and blower get used interchangeably on the plant floor, and most of the time that is fine. But there's a real technical difference: it comes down to pressure ratio. A blower is not a separate machine; it is a fan engineered for higher static pressure. This post breaks down the pressure-ratio distinction, why the terminology gets blurred, and how to match the right type, axial, centrifugal, or high-pressure blower, to your actual application.

July 2026

High-Temperature Exhaust Fans Choosing the Right Fan to Move Hot Air Out

By David Long

High-temperature exhaust applications are not one-size-fits-all. The right fan depends on temperature, airstream conditions, available space, and duty cycle. This guide explains when to use centrifugal, axial, or plug fans for exhausting hot air from ovens, kilns, foundries, heat-treat operations, and other industrial processes. Learn the key specification factors that impact performance, reliability, and safety, and avoid costly mistakes that lead to premature fan failure.