Why does your warehouse or workshop become colder when the exhaust system starts? Exhausted air needs replacement air. If that air enters through uncontrolled paths or is not conditioned appropriately for the application, drafts and heating complaints can follow. A review of exhaust, make-up air and space heating together can help establish the cause without compromising the ventilation needed for the work.For an industrial operator, the timing of the complaint is valuable. A building that fe...