When we replaced our last hot water heater they offered a tankless one. We still had our oldest son at home all the time and our younger son home on breaks. Dh and I looked at each other and never missed a beat to say NO. Our older son took a 30 minute showered it was we couldn't imagine how long he would stay in with the tankless one. We hear he takes a lot shorter showers once he moved out and was paying his own water and gas bill.