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
Here's what to do if you wake up some frigid winter morning to find a water pipe frozen solid:Step 1: Open faucet so steam produced by your thawing activities will be able to escape.
Step 2: Start tha ... read more