Affinity 9.C and 8.C Series Gas Furnaces Affinity™ 9.C and 8.C Series high-efficiency gas furnaces are a step up for any home. That's because York® Affinity modulating gas furnaces continuously adjust their heating level by 1% increments to match the degree of comfort you need exactly and efficiently. In fact, they can maintain indoor temperatures to within 1/2 degree of your thermostat's setpoint.* The variable speed, ECM, blower slowly ramps up and down providing quiet and efficient air distribution while reducing overall utility consumption. The Affinity™ 9.C is the highest rated gas furnace in the industry (up to 98% AFUE), which means more efficiency and lower energy costs. *Actual results may vary. Match Your Comfort Level By Degrees Modulating design uses a firing rate at 1% increments to match comfort levels more exactly Both models use a variable-speed blower which reduces electrical consumption Fewer starts and stops saves more fuel and operates more quietly Makes longer runtimes more affordable for more air infiltration to improve indoor air quality Adjustable for dry, temperate, or humid climates with ClimaTraK™technology

ENERGY STAR Earning the ENERGY STAR means products meet strict energy efficiency guidelines set by the U.S. Environmental Protection Agency and the Department of Energy. When compared to standard models, ENERGY STAR products are between 15 and 25% more efficient. This model meets ENERGY STAR requirements for energy efficiency.

Good Housekeeping For almost 100 years, the Good Housekeeping Seal has been a symbol of quality and trust. This model is proud to have earned the Good Housekeeping Seal.

Energy Guide This model is rated 18.0 SEER. The EnerGuide label gives you important information when you shop for a new appliance, including estimated energy consumption.