HE Series
Commercial & Industrial Direct Fired Heaters

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.
Features
- 1,300 to 100,000 CFM
- Up to 25:1 turndown
- Indoor and outdoor configurations
- High efficiency Green Burn Burners
- Dedicated EngA NextGen digital controllers


*Due to continuous product development, specifications, dimensions and capacities are subject to change without notice.
“Green Burn” Burner

- Clean burning
- Low CO and NO2
- Environmentally responsible
- Reinforcing bar across baffles
- All combustion holes located in stainless steel plate
- Largest casting cross sectional area
- Highest temperature rise
- 25:1 turndown
- Eliminates burner plate distortion
- Significantly reduced burner maintenance
- Event flame propagation over entire coldest climate
- Precise temperature control