The HVI-certified EKO 1.5 heat-recovery ventilator recovers and exchanges up to 80% of heated or cooled air. Two high-performance ECM motors consume 13.5 watts each at low speed and operate at 2.53 cfm per watt, making the units among the most energy efficient available. Four speed settings adjust to changing needs, especially when automatically controlled by a programmable touchpad (included). A defrosting system mitigates ice buildup on the recovery module. The unit’s compact size enables more installation options. 800.567.3855.