Affinity™ 9.M and 8.M 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.*
*Actual results may vary.
Download Affinity™ YM9M Gas Furnace Brochure PDF (1.69 MB)
Download Affinity™ YM8M Gas Furnace Brochure PDF (1.74 MB)
Match Your Comfort Level By Degrees
- Modulating design uses a firing rate at 1% increments to match comfort levels more exactly
- Both models use an economical constant-speed blower
- 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

Warranties
York® backs every system with one of the best limited warranties you’ll find: Every Affinity 9.M & 8.M gas furnace is backed with a lifetime limited warranty on the heat exchanger. Both come with a 10-year limited warranty on all other parts*.
And, if you purchase any York® Affinity series gas furnace with a matching Affinity series two-stage air conditioner or heat pump, you'll receive our Premium System Warranty Program: a 10-year limited parts warranty and a lifetime limited compressor warranty.
*Must be installed after May 1, 2009, and registered online within 90 days of installation—otherwise the parts warranty reverts to a 5-year limited parts warranty.

EnerGuide
The Affinity 9.M is 97% AFUE rated.
The Affinity 8.M is 80% AFUE rated.
The EnerGuide label gives you important information when you shop for a new appliance, including estimated energy consumption.

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. Single phase Champion models are proud to have earned the Good Housekeeping Seal.

NATE
York® encourages professionalism through North American Technician Excellence, Inc.(NATE). NATE is the leading certification program for technicians in the heating, ventilation, air-conditioning and refrigeration (HVAC/R) industry, and is the only test supported by the entire industry.