Initially, I loved this unit. I told everyone and referred several people. Now, three years later, I have a unit that is unusable and am going to buy a more reputable and solid rheem product. The flow sensor failed and after getting the replacement one and paying $54 for overnight shipping, the flange it goes into fractured and failed, spewing water and flooding my basement. All the while, I'm told by "service" that it was my fault and it is not their problem. Nice! Don't waste your time or money unless you plan to replace it in 3 years and/or like for your house to be flooded.