Performance 93 Gas Furnace Maximize Your Comfort With ComfortHeat™ Technology   High energy efficiency — up to 93% AFUE. Two-stage heating — low speed allows for ultra-quiet furnace operation and maximum comfort. ComfortHeat Technology helps temperature stays closer to thermostat setpoint. Improved dehumidification and humidity control. Sealed combustion design reduces burner sound. Pilot-free ignition. Limited lifetime warranty on gas furnace heat exchanger. Five-year limited parts warranty.   Benefits - Carrier’s ComfortHeat™ Technology is a smart technology, accurately predicting the need for heating while cutting temperature swings in half. ComfortHeat™ Technology (found in Carrier's gas furnace products) provides a nearly continuous flow of warmth in low-capacity operation for a steadier, more consistent indoor temperature. Download Gas Furnace Brochure Features - Performance Gas Furnaces go one step further with features such as SmartEvap™, that can help keep humidity levels low. ComfortFan™ gives you even more control over your indoor comfort by allowing you to select your continuous fan speed at the thermostat.           An Inside view of the Performance 93 Gas Furnace     Optional air cleaner cabinet – allows for the easy and convenient addition of a Carrier high-efficiency air filter for enhanced air quality. Burner ignition – as one of the most dependable systems available, it replaces pilot lights and reduces utility consumption. Two-stage gas valve – provides two heating capacities. The low capacity works during milder days while the high capacity engages during colder temperatures. Two-speed inducer – precisely controls air intake within the combustion system for high-efficiency performance. Multi-speed blower motor – ensures consistent airflow and temperature maintenance, helping to keep rooms more comfortable while improving air quality. Two heat exchangers – extract heat from the gas you use and transfer it to warm the air. The primary heat exchanger extracts 80% of the heat while the secondary heat exchanger extracts an additional 12 – 16%, helping to ensure efficient, reliable performance. Sealed combustion system – reduces cold air infiltration while providing quieter operation. Patented control board – allows customized comfort with enhanced temperature maintenance and efficiency at your fingertips.       Specifications