The DR-122X4 Large Size Bedbug Heater System terminates bed bugs of all types, even growth stages like eggs, nymphs and adult bed bugs, making this the perfect non-toxic natural bed-bug treatment system. This system is large enough to treat bed bug infested items such as Sofas, Beds, Desks, Seats, Footwear, Books, Dressers, Night Stands, Clothes, Sheeting, Appliances, and much more. When you're ready to start toasting the bed bugs here's a few things to note The DR-122X4 takes approximately 10 minutes to assemble. Due to the size of the product, we recommend a minimum of 150 sq ft space for set up. This Bedbug Heater System requires a total of 50 Amps or 6,000 Watts to operate. Each heater needs to be plugged into a 120V outlet and each outlet needs to be on its own circuit. The four heaters may need to use four extension cords not included in package . A typical residential and/or commercial building has one circuit per room. Do not use extension cords rated below 1500 watts or under 16 gauge. Wipes out 100% of bed bugs of all forms. Safe, powerful, and Non-toxic form of treatment. Easy to set up and load infected items for treatment. Sizable Service Space 112 L x 58 W x 79 H inches . Ideal for treating many infested items such as sofas, beds, desks and much more. Each heater needs to be plugged into a 120V outlet and each outlet needs to be on its own circuit. Extension cords required but not included.