
The GR9S921005CN combines 100,000 BTU heating power with a 21" cabinet sized for 5-ton cooling systems — making it one of the most capable furnaces in the GR9S92 lineup for large homes.
Key Features:
- 92% AFUE — high efficiency heating with lower energy bills
- 100,000 BTU input — ideal for large homes
- Single-stage operation with 9-speed ECM blower motor
- Upflow or horizontal installation
- Heavy-duty aluminized-steel tubular heat exchanger for durability
- Self-diagnosing control board for easy troubleshooting
- Low NOx emissions — meets nationwide installation requirements
- R-32 compatible
- Silicon nitride igniter for reliable, long-lasting ignition
- AHRI Certified and ETL Listed
Specs:
- BTU Input: 100,000
- AFUE: 92%
- Cabinet Width: 21"
- Stages: Single
- Blower Motor: 9-Speed ECM
- Fuel Type: Natural Gas
- Installation: Upflow / Horizontal
- Voltage: 115V
Compatibility: Compatible with 2-5 ton R-32 cooling systems.
Warranty: 10-year limited parts warranty when registered within 60 days of installation.
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