10-year parts limited warranty when properly registered. To the original owner, the Carrier Base™ 80 Gas Furnace is covered by a 10-year parts and 20-year heat exchanger limited warranty upon timely registration of your new equipment. Ask your Carrier dealer about optional extended warranties, which may include labor. Warranty period is 5 years if not registered within 90 days. Jurisdictions where warranty benefits cannot be conditioned on registration will automatically receive a 10-year parts limited warranty. See warranty certificate at carrier.com for complete details.