Comfort 80 Gas Furnace Maximize Your Comfort With ComfortHeat™ Technology   High gas furnace energy efficiency — up to 80.0% AFUE. Pilot-free ignition. Media filter cabinet. 20-year limited warranty on gas furnace heat exchanger. Five-year limited parts warranty.   Benefits - Within each step of the gas furnace development process, from the design phase to finished products, we test each and every product to exceed industry standard requirements. In fact, Carrier engineers test the reliability of the heat exchangers to over 200,000 cycles. That’s more than six times the industry’s standard of 30,000 cycles. Download Gas Furnace Brochure Features - Performance Gas Furnaces go one step further with features such as SmartEvap™, that can help keep humidity levels low.           An Inside view of the Comfort 80 Gas Furnace     Optional gas furnace air cleaner cabinet – allows for the easy and convenient addition of a Carrier high-efficiency air filter for enhanced air quality. Intelligent gas furnace control – manages fan speed to provide the best combination of comfort and energy efficiency, helping to ensure even temperatures throughout your home. The ComfortFan™ feature virtually eliminates the need for a ceiling fan. Inducer fan – precisely controls gas furnace air intake within the combustion system for efficient performance. Burner ignition – as one of the most dependable systems available, it replaces pilot lights and reduces utility consumption. Slow-opening gas valve – helps ensure quiet operation of your gas furnace. Direct-drive blower motor – delivers heated airflow into the ducts for enhanced energy efficiency and quiet operation. Fully insulated cabinet – helps reduce sound levels when the burner activates.       Specifications