Hi Judy: I'm biased because I sell them. But, in over 30 yrs involvement with tankless, I've selected three tankless units to represent. And they are: Aqua-Star gas units, Powerstream electric undersink or remote shower uses, and Microtherm "Seisco" whole-house electric units. Try these websites then contact me to order, or find the distributor nearest you. www.seisco.net www.cechot.com Brian Wood 1 800 951 9891, thanks.