Amana furnaces have a Lifetime heat exchanger warranty. The heat exchanger is the heart of the furnace and Amana makes theirs with 100% stainless steel which will not rust.
We have been installing and repairing furnaces in Woodbury MN for over 30 years. We have built up our reputation on having low prices and the highest quality installation.
Amana furnaces are built here in the USA and We have not found a better built furnace anywhere.