Air Heaters

The first Air Heater NAO manufactured was in 1941. NAO offers a wide range of low, medium and high intensity designs of Air Heaters;

• NAO Duct Air Heaters
• NAO Horizontal Air Heaters
• NAO Down-fired Air Heater
• NAO In-Line Air Heaters

NAO’s direct-fired air heaters are designed to match the requirements of a wide range of process applications:

• Atmospheric Control
• Catalytic Cracking
• Coal Driers
• Coal Gasification
• Crop Driers
• Dehydration Units
• Food-Process Driers
• Fluidized Beds
• Furnace Drying and Preheating
• Heat Exchangers
• Malt Kilns
• Paper Driers
• Rotary Driers
• Stress Relieving
• Other Applications

NAO’s goal is to supply a client with a prepackaged air heater complete with a UL Listed Control System, Burner Management System, High Efficiency NAO Burner, High Energy Ignitor(s), and Air Heater Chamber as required for each application.

NAO’s Combustion chambers are supplied insulated with a refractory insulation rated for the operation.  From Lightweight Ceramic Fiber, and Vacuum Formed Ceramic insulation to a castable refractory lining, for high operating velocities.

• Long operational life with minimal maintenance.
• Required heart load can be met with oil, gas, or combination fuel-fired units.
• Simple and heavy-duty control package, manufactured per our clients specifications, by NAO’s UL Audited and Accredited Panel Building Division.