Delta SIMPLESTEAM KIT SimpleSteam Kit 12kW - 5P-EST12Delta SIMPLESTEAM KIT SimpleSteam Kit 12kW 5P EST12 Simple to order and simple to use, the SimpleSteam Kit is simple for a reason: so you can enjoy the benefits of at home steam whenever you want it. Steam can be more than a relaxing escape. Discover how the Delta Steam Systems can improve your overall wellbeing. Plus, conserve water and energy without compromising your experience'an average 20 minute steam shower uses less than one gallon of water.