Stelter & Brinck Blog

Duct Air Heater Overview

Duct Air Heaters are one type of direct fired air heater used in industrial applications. These industrial heaters provide the hot air used to manufacture everything from clay and brick to coal and glass. Duct Air Heaters earned their name due to the fact that they are designed to be inserted right into the process ductwork. These heaters most often fire on natural gas, propane and butane.

Stelter & Brinck Duct Air Heaters Models & Pictures:

  1. Fresh Air Duct Section Air Heaters: the burner uses the “fresh air” present in the process air stream; do not require an additional combustion air source.
    Duct Air Heater- Stelter & Brinck- Fresh Air Duct Section

    Duct Air Heater- Stelter & Brinck- Fresh Air Duct Section

    Image: Stelter & Brinck’s Fresh Air Duct Section, Duct Air Heater

Recirculating Duct Section Air Heaters: used in slightly dirty environments, when the oxygen content present in the process stream is low; feature a combustion blower.

Stelter & Brinck Recirculating Duct Section Air Heater

Stelter & Brinck Recirculating Duct Section Air Heater

Low NOx and CO options are available with each model of Duct Style Air Heaters.

Stelter & Brinck Duct Style Air Heater Features/ Benefits:

Fresh Air Duct Section & Recirculating Duct Section

Fires on Natural Gas, Propane Gas, and Mixed Fuel Gasses

Packaged Heaters

High Energy Turndown

Plug & Play

Duct Style Air Heater Video

https://www.youtube.com/watch?v=IQ1xjHOoK8A

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