Why It Matters

Bakeries and kitchens exhaust hot, greasy air from ovens and hoods. Capturing that heat reduces make-up air and water heating loads.

Typical Energy Savings

Recovery on exhaust and pre-heating of incoming air or water can lower energy use by 15 to 30 percent in suitable sites.

Recommended Technology

• Run-around coils where grease makes direct exchange impractical
• Air-to-water exchangers for wash and process water

What to Watch

• Grease-laden air needs frequent, safe cleaning (fire code)
• NFPA 96 compliance for kitchen exhaust systems