The heat exchanger in this gas furnace is covered by a Lifetime Limited Warranty. The GMS8/GDS8 also have a 10-Year Parts Limited Warranty on all functional parts. For a full description of all warranties applicable to this product, please see your local Amana dealer or click on the consumer brochure and product warranty links above.
This gas furnace has an AFUE rating of 80%, which means that 80 cents of every $1.00 of heating energy expense warms your home.
Before purchasing this appliance, read important information about its estimated annual energy consumption, yearly operating cost, or energy efficiency rating that is available from your retailer.