by Ted Stolz
I purchased a Navien Tankless Water heater 7 years ago. I have had problems with the unit as the water turns cool after about 2 minutes in the shower. Couldn't get it corrected and now the re-circulation pump has a noise and can't use that pump. Don't purchase this water heater for the warranty will not cover the problems. I will return to the tank type because of the problems that I had to deal with. Buyer beware!