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Edgewood College

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Strong ROI for Kitchen Hood Demand-Control Ventilation

Edgewood College had an energy conservation fund with strict technical and payback criteria.The old kitchen HVAC systems in Predolin Humanities Center and Regina Hall were selected for upgrades.The goals were to save energy, reduce noise levels, decrease grease entrapment, and reduce HVAC equipment wear.


TEL provided engineering, installation, commissioning and O&Ms for conversion of Constant Air Volume (CAV) kitchen hoods to Variable Air Volume (VAV). Installed TEL chip-based kitchen control system whose sensors automatically regulate fan speed based on cooking load, time of day, and hood temperature.

“Remarkable! Very, very happy with the outcome. Your guys were awesome. Documentation was also more than expected. Follow-up service has been exceptional and timely. Thank you!”


Nicholas Holmes, HVAC Engineer

Edgewood College


Industry: Higher Education

Location: Madison, WI

Project Type: Kitchen Hood Upgrade

Incentives: $3,300

Cost $52,120

SPB 3.7 years

Energy Savings: $13,268 / yr

  • kWh Savings 50,759

  • Therm Savings 13,428


New VAV Systems:

  • Door-mounted control panel display

  • Temperature sensor installed in the hood exhaust collar

  • Room temperature sensor

  • IP sensors installed in hoods to detect the presence of smoke and cooking effluent

  • VFDs installed on exhaust fans and make-up air units