Ruud Classic Series 80% AFUE, Standard ECM Gas Furnace - 100,000 BTU , R801CA100521MSA

Reliability - The Ruud Achiever Series Gas Furnace is engineered with the 1 PlusOne® Ignition System. Our Direct Spark Ignition is a Ruud-exclusive feature that’s nine times more reliable than most hot surface igniters. It’s also the same proven design used in commercial air equipment and gas home appliances. Our patented heat exchanger is quick and easy to clean—when needed by your local Ruud contractor. And a clean furnace is a long-running furnace.

Quiet Operation - The gas furnace has a 2 tighter door seal that helps eliminate whistling. We’ve also added 3 rubber grommets on the motor mounts and a 4 twist-lock wire harness in the blower shelf. The result is an impressively quiet furnace.

Fast & Accurate Diagnostics - The Ruud Achiever Series Gas Furnace features 5 PlusOne Diagnostics, our industry-first seven-segment alphanumeric LED display that simplifies troubleshooting. Just in case there’s a need, service calls are faster, which ultimately saves you money.

Increase Your Energy Savings - Ruud's R801C delivers 80% AFUE, which means 80% of the fuel in your furnace is converted to heat. The 6 constant torque ECM motor maintains efficiency across a range of operating speeds, using less electrical energy than a standard PSC motor.

Hassle-Free Installation - The 7 34" cabinet fits nicely in tight spaces allowing for both new construction and retrofit installations, saving you and your dealer time and trouble.