TRD Signature Series (Floor Model)Amantii TRD Signature Series Featuring the Optimyst by Dimplex This model can only be built in. Unit needs to be hardwired Unit needs to be plumbed for water Unit requires 20 amp circuit The Optimyst comes with a 2 year warranty, provided by Dimplex. The Amantii Electric Fireplace includes a 2 year warranty, provided by Amantii. Outdoor Approved * Optimyst Flame Effect Revolutionary, patented ultrasonic technology produces a fine mist of water vapour