he EcoDry ES-50 is our most energy efficient 50-lb dryer. The unique design features 100% axial airflow, dual-paned door glass and sealed tumblers that contains the heat and pushes it through the load for maximum efficiency. Single Phase Reversing comes as a standard feature. Residual Moisture Control (Coin RMC), an optional feature, measures moisture in a load and reduces the heat input while it continues to run the tumbler. The ES-50 is available in gas, electric, and steam heat.