Direct vs. Indirect Fired Process Air Heaters FAQ | Expert Answers

Indirect Fired Air Heater Diagram

At Stelter & Brinck, we design and manufacture custom process air heaters, among other combustion systems. From direct-fired duct, packaged, and gun-style units to indirect-fired recirculating, non-recirculating and straight-through models, our equipment powers critical industrial processes worldwide — drying, curing, heat treating, makeup air, food processing, metals preheating, and more. Customers often have the same…

Read More

Direct-Fired vs. Indirect-Fired Process Air Heaters: Best Uses by Application

At Stelter & Brinck, with over 100 years of expertise in the process heat industry, we specialize in custom process air heaters — direct-fired and indirect-fired — designed specifically for industrial use. Process air heaters provide heated air directly into manufacturing process, optimizing system heat, energy use, and product quality across diverse settings. Direct Fired…

Read More

Direct vs. Indirect Fired Air Heaters: Comparison Guide for Industrial Applications

With over 100 years of experience designing and manufacturing custom industrial process air heaters, Stelter & Brinck knows that choosing between direct fired and indirect fired air heaters is important to your operation’s efficiency, product quality, and bottom line. Whether you’re drying grain, curing composites, processing food, or heating sensitive chemicals, the right heater delivers…

Read More

Introducing our *NEW* Catalog

Our *NEW* catalog has been updated to not only better reflect our website, but to also include some information about Stelter & Brinck. Check it out and learn more about our Process Heat Equipment and Combustion Field Service Capabilities! In the catalog features:

Read More

Custom Built Indirect Hot Air Source

Are you looking for an indirect hot air source for your process needs? An indirectly fired air heater that has high thermal capabilities? One that is custom designed, engineered and built, just for your application? Stelter & Brinck is happy to assist in your indirect air heater needs. Whether your application requires a recirculating, non-recirculating…

Read More

Looking for Process Heat Equipment or Combustion Service/ Parts?

A page of various industrial equipment and machines.

Does your plant need combustion equipment? Do you need a reputable company for your burners’ maintenance and required safety checks? Are you in need of a combustion equipment parts vendor? If you answered “Yes!†to any of the questions above, partner with Stelter & Brinck for your combustion needs! S&B can provide you with following…

Read More