“Combined with the corrosiveness of the condensing furnace vapors this soot can sit inside the exchanger and corrode it over time. In a factory witness test Adams claims to have overcome this problem by using a special type of metal for the heat exchanger that resists the corrosive effects that can lead to premature heat exchanger failure.”

I love this furnace! I can see a difference in fuel usage already! I haven’t had it long enough to rate reliability, but with a company with their experience, I don’t see how this will be a problem. This runs as quiet as a kitten. A lot better than old 22 year old oil furnace. That baby had a drinking problem! This furnace sips the oil!