Energy Recovery Units

As air is exhausted from process equipment, heat is lost as well. GFS’ Heat Recovery System reclaims some of this heat that escapes with exhausted air, providing your business with measurable energy savings.

• Low initial cost (vs. heat wheel or heat pipe)
• Simple and reliable operation
• Low operating costs
• Payback periods as low as 18 months*

How Does it Work?

A state-of-the-art, air-to-air exchanger is combined with a high efficiency direct fired air make-up heater to capture some of this heat as air exits the building. This recovered heat then warms up the intake air that is brought into the building. Coupling a direct fired air make-up unit with an efficient and easily maintained heat exchanger provides the ideal industrial heating and ventilating system.

State-of-the-art, air-to-air exchanger design, combined with high efficiency direct fired air make-up heater.

Air–to-Air Heat Exchanger
- Completely cleanable air channels
- Modulating freeze protection
- Condense drain located in heated building
- Standard operating temperatures from -40 F to 220 F
- Low pressure drop (reduces motor energy consumption)
- Independent plate spacing for each airflow path
- Effectiveness ranging from 50-60%, dependent upon face velocity and plate spacing
- Certified performance by independent test lab
- ASHRAE/IESNA 90.1 energy standard compliance
- Optional materials and coatings for special requirements

Direct Fired Air Make-up Heating Systems
Air make-up systems incorporate the advanced components necessary for energy efficient, long-term indoor air quality. The direct-fired burner offers 100% thermal efficiency, as opposed to 80% nominal efficiency for an indirect fired air make-up heater. The turndown ratio for direct-fired units is much greater than common indirect fired units. This means better control of discharge air temperatures and better use of fuel energy to heat the air as it moves across the burner.