We purchased a condo one year ago...which had the eemax tankless unit already in place. We thought at the time...how cool...until the first shower!!! We discovered that you must run water for SEVERAL minutes before actually getting in the shower. You will get warm water but it will then give you a blast of cool water before it can recover to hot water again. So you must let it run to avoid the SHOCK. May be efficient on electric but NOT on water conservation!!! Just a couple of months into our life here we started getting lukewarm showers.UGH...these units have two heat elements...one went out...new element 150.00...lasted four days...out again. so enough of that...we replaced the unit 527.00 in April of this year cost 275.00 for new install We learned that any interruption of water supply could burn out an element if there is air or sputter in the hot supply. So we always turn on cold water first to be sure. There has been a few times when condo building has had work done on water. So we would turn breaker off on heat elements run water for several minutes before turning power back on to the heat elements!! It is December and we are back to lukewarm showers again. That was enough for us!!! At 8:00 last night we had guys here installing a water tank and cost us 795.00 So save yourself the headaches and the cost involved. This was an expensive lesson learned. The installers last night told us the only good tankless are gas supplied units..doesn't matter what brand it is...none of the electric ones work very well.
South Point Ohio