I went for this Steam Generator because of the other good reviews, and my thinking it was the best deal for the $140.00 I paid for the 6 kW version, after comparing it to other deals. I asked before purchasing about it being a 240ac split phase USA version, which differs from the European 220v single phase. I was happy to confirm by taking some panels off for inspection; to find all the inner wires were tight, it has a plastic cover (removed for the picture) that clearly shows where L1 & L2 electrical lines connect, with obvious grounding wire connection. I see good indicators this steam is properly wired for USA standards 240vac split phase (and I have wired up 3 houses). ... I still have to build my steam room; and intend to hook this for a steam test soon, before my steam room is fisinished. ... Hench my Thumbs up is holding back one star for until I do my steam testing. I will come back and update my review then. I encourage you to consider this good deal (only after you confirm kW version to the cubic meters or cu ft you want to heat), ... when this deal is available. My Take: This is a Great Deal :+)