The main opportunities for saving energy with ventilation systems are eliminating unnecessary conditioning and reducing fan energy consumption.

Day to day activities

Field Inspection Check List

• Duct insulation
• Duct leaks
• Fans
• Dampers
• Air grills
• Air filters – clean or change

Recommendations, advice and tips

• Clean the system regularly – ducts, air grills, air filters
• Insulate supply ducts. Wherever heating ducts are exposed to unheated areas, there is potential for heat loss.
• Lubricate all moving parts
• Upon exchange of fan, the new fan should be highly efficient, with variable speed control
• If possible, occupancy sensors installed for lighting control can also be used for ventilation control
• Upon installation of heat recovery equipment, the recovery unit should have an efficient coefficient above 0.8
• Electric motors should be highly efficient