Bests & Worsts Reviews from Amazon

I did extensive research before purchasing a tankless water heater. The common problem seems to be that people are reading the GPM a unit is capable for their area and are expecting a nice hot shower. The GPM listed is based on heating water to only 105 degrees which is nice and warm out the unit, but by the time it gets to the other end of the house, it is barely body temp, if that. We found it needs to output between 120 and 125 degrees to get a nice hot shower (using no cold water). This in turn ups the kW required to heat the water... So to be safe, I picked the biggest model available right now (36 kW) and are tickled to death over the performance. It is solid, steady source of hot water for both showers at the same time. Love it. -- Note: If you don't have four 40 amp breaker slots available, no problem! Still get this bad boy and start off with 2 or 3 circuits(whatever you have available) and it'll use what you give it (albeit you may have to limit use to just one item at a time)... allowing you time to wire up for more power later. UPDATE (5/15/2016): It had performed flawless for about 4 months. Then, suddenly, one day it said "OFF" and nothing we did (even with tech support via phone/email) fixed the problem. So, we had 3 days of cold water in the home until a new controller card arrived. Installed it (pretty easy) and voila! we're back in business. Tech support was easy to reach and the part was delivered via 2-day service. However, since then, it has turned itself completely off (not even light up) for no apparent reason. No breakers tripped... but recycling the breakers restored service. It has been a month now since last time it did that. -- I am still very happy with the purchase and would recommend it for anyone thinking about trying it.