An air curtain heater helps stop cold air from affecting ambient air temperatures and maintains a comfortable temperature in your restaurant lobby, loading area or high-volume traffic areas. Construct or retrofit an air curtain with a heater for a powerful and effective cold-air barrier. Grainger can supply you with the items you'll need, from an air curtain heater to a plenum fan that will provide you with a high-pressure air stream. Save energy with a door limit switch to deactivate the curtain when the door is closed. Create effective temperature zones with an air curtain heater from Grainger.