HVAC Knowledge Center
Industry insights, engineering guides and technical resources from Across Engitech.
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LEV systems for chemical processing: hood capture velocities
LEV systems require precise hood design, airflow control, and selection of capture velocity to effectively remove hazardous fumes, vapors, gases, and airborne…
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Sizing AHU coils for partial-load efficiency
Proper AHU coil sizing is one of the most important factors in achieving energy-efficient HVAC operation. While many systems are designed for…
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Heat recovery wheels: when they pay back and when they don’t
Heat recovery wheels can significantly reduce HVAC energy consumption by transferring heat and, in some cases, moisture between exhaust and incoming fresh…
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Why your cooling tower fill is your biggest efficiency lever
Cooling tower performance depends on more than fan power and water flow rates. The fill media inside the tower is the primary…
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Particle count validation for ISO 7 / Class 10,000 rooms
Particle count validation for ISO 7 / Class 10,000 rooms demands more than periodic testing — it verifies that the HVAC system,…