The HE Series make-up air units offer the most efficient method available to heat make-up air. Direct fired make-up air heaters may be considered to be 100% efficient because no heat is vented to the atmosphere.
The theoretical 100% efficiency should be reduced to 92% due to water vapor being formed as a natural by-product of the combustion process. Units are available with heating capacities up to 14,000 MBH and air capacities up to 100,000 CFM. Units are also available in variable capacity, dual capacity, air curtain, and / or heat recovery configurations.
Direct Fired Heaters
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The Engineered Air exclusive "Green Burn Burner" is the cleanest burning on the market today. The HE Series make up air heater meets all the current ANSI and CSA standards for direct fired units, and is certified by ETL. This assures the highest "state of the art" direct fired unit available. Clean burning efficiency and peak operating economy are some of the reasons to specify Engineered Air HE Series direct fired units.
