Rinnai... Hate it!!!
Two years ago my plumber talked me into this. It takes forever for the hot water to get to my kitchen. My house is not large and the tank is only 10 feet from the unit which is right next to my gas meter. Now my tankless isn't working at all and I can't get a plumber out today. It is showing some error codes that are not in my book. The tank water heaters are so much less upkeep and problems. If the electricity goes out you have no hot water because the gas has an electronic starter! I regret getting this thing. I just had to go get a hotel with hair dye in my hair because I have no hot water!