It would use natural gas, and I already have a big enough main gas pipe that ends right where I want to install the tankless. All I have to do is install the category III vent to the roof, which is about 10 feet up, and connect the gas and water. The problem is that I don't know how to be sure I did everything right. If it looks right, and it works ok, what else do I need to do to insure that it's safe?
Tags: