Try www.cechot.com but they do not sell direct. My company sells all Controlled Energy products including the Aqua-Star gas unit you are all curious about. I'm also a rep for "Seisco" which is the only electric equivalent of Aqua-Star. Our RA-28 @95,564btu is the only tankless electric unit in the world which will meet the hot water needs of an entire home. Call me @ 800 851 9891 E-mail me firstname.lastname@example.org or write to-- Hot or Not Marketing Inc. PO Box 763, Lake Charles, LA 70602 Happy Waterheating! Brian.