Gas Furnace Evolution 98% AFUE 120000 BTU Modulating Multi-position 24-Inch-Wide Cabinet 987MB66120C24

The Gas Furnace Evolution 98% AFUE 120,000 BTU Modulating Multi-Position (987MB66120C24) represents Bryant’s pinnacle of residential heating performance, delivering a 120,000 BTU input at 98% AFUE with fully modulating operation for precise comfort control. Designed for installation flexibility in upflow, downflow, or horizontal positions, its 24″-wide cabinet (approximately 35″ high × 29 1/2″ deep) provides generous coil space and front service access for technicians. A fully modulating gas valve fine-tunes heat output in 1% increments for whisper-quiet operation, steady temperature regulation, and maximum energy savings, while the variable-speed ECM blower motor maintains smooth airflow and superior humidity balance throughout the seasons. Operating on 115 V single-phase power with a 15 A circuit, the furnace connects via a 1/2″ NPT gas fitting and supports PVC or CPVC venting for both direct and non-direct configurations. Certified for a temperature rise range of 35–65 °F and maximum external static pressure of 0.10 in. w.c., the 987MB66120C24 delivers industry-leading efficiency, durability, and technician-friendly accessibility for premium residential installations.