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…

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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…

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Industrial Hot Air Generators for Dryers

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Are you in need of hot air for your industrial dryer? Indirect fired or direct fired air heaters are used as a hot air generator for many types of industrial dryers.  The wet material being dried with every type of dryer determines whether the process utilizes a direct fired air heater or an indirect fired…

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Indirect or Direct Fired Air Heater Considerations

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Are you in the market for an indirect or direct fired air heater? Before making the capital investment, it’s important to take time to consider the following aspects of your process. Application & Reaction to Heat When beginning your search, you should first consider your application and answer the following:           What is the product…

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Emissions Goals?

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Do you have emissions goals your plant strives to reach? Is your plant looking to become more environmentally friendly? Stelter & Brinck’s equipment can help you meet your emission needs! We manufacture our own line of Environmental Systems, which include: Thermal Oxidizers, Catalytic Oxidizers & Afterburners. These systems destroy industrial emissions that are present in…

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