The energy-saving properties of glass door refrigeration cases have caused a recent rise in their use across supermarkets, c-stores and mixed retail, but their anti-condensate heaters can use unnecessary energy in preventing case sweating. When operating 100% of the time, the added power consumption can be significant. Controlling the anti-condensate door heaters will help ensure energy-efficient operation. For centralized or distributed anti-condensate control, Copeland has the solution.