Our Rinnai tankless water heater, which was purchased December 2004 quit working. The unit costed well over $1800.00 and should last more than 5 years. We contacted the 100% recommended company listed on Rinnai's website, which was the closest to our home. Stass Plumping Co. in Waco, TX. Matt, one of Stass' employees, couldn't fix the unit on site, and said that he neede to take to their shop in Waco. Upon returningwith the unit and re-installing it, we received a bill for $831.93! I think that our unit was used for... read full review »