Quest Dual 155 was designed to be placed overhead and out of the way, but can also be placed at ground level for plug and play operation. It is designed to be very energy efficient. The Quest 155 performs at 7.3 pints per kilowatt-hour. Compared to most standard dehumidifiers (3.8 pints/kWh), the Quest 155 is nearly twice as efficient. The Quest Duals