Set up a time with him on a day that works best for you each week, or how often you'd prefer to be updated. You should have an idea of or a clear timeframe for the progress of the home, but if you don ... read more
There is minimal maintenance to keep the water heater running good as new. Here is a quick link to some helpful steps http://www.wikihow.com/Maintain-a-Tankless-Water-Heater