What type of air should be handled by non-circulating direct gas-fired industrial air heaters?

Non-circulating direct gas-fired industrial air heaters are specifically designed to handle outdoor air. This is because these systems directly combust propane and rely on fresh air intake to ensure proper combustion and efficiency. By utilizing outdoor air, these heaters can maintain safe operation by avoiding the buildup of harmful gases and ensuring an adequate supply of oxygen for combustion.

Handling outdoor air also reduces the risk of contamination that may occur if indoor air, which may contain pollutants or excess humidity, is utilized. This is particularly important in industrial settings where air quality is crucial for both safety and equipment functionality. Properly managing outdoor air helps ensure a consistent and efficient heating process while adhering to safety regulations and optimizing performance.