The company introduces its Model 2040 and 2050 air handlers. Both are intended to serve the direct-fired heating and ventilating market and are ETL-certified for 100ûF temperature rise using natural gas. The Model 2040 capacity is from 35,000 cfm to 47,500 cfm and the Model 2050 is from 45,000 cfm to 60,000 cfm. Standard features for each model include up to 100% outdoor air heating ability with no concerns for freeze-up; even airflow across the burner to ensure complete combustion and maximum efficiency; and a versatile, wide-operating range, says the manufacturer.