Gas Furnace – 96% WFSX-B

GrandAire residential equipment is AHRI-Certified and ensures year-round comfort. We offer a full line of heat pumps, air conditioners, furnaces and package units that are built to last and environmentally friendly. No matter what your needs, GrandAire has the right fit for you.

Gas Furnace – 96% WFSX-B

Experience top-tier comfort and efficiency with our high-performance WFSX Gas Furnace. This versatile unit offers up to 97% AFUE in upflow and horizontal positions, and up to 95% AFUE in downflow positions, ensuring maximum energy utilization. It features a multi 18-speed, constant torque ECM blower motor for consistent and efficient airflow, while supporting single-stage cooling units. The furnace is equipped with enhanced diagnostics, providing an easy-to-read 3-digit display for faults and status, and an on-board NFC antenna for effortless setup using the service technician app.

Designed with your comfort and safety in mind, this Gas Furnace includes an insulated heat exchanger compartment, flame roll-out sensors, and a high-temperature limit control designed to prevent overheating. The direct ignition with Silicon Nitride igniter ensures reliable operation, and the high-quality, corrosion-resistant, prepainted steel cabinet guarantees durability. With twelve different venting configurations and four installation positions, this furnace offers flexibility to suit your specific needs. This furnace comes with a 1-year No Hassle Replacement™ limited warranty, a 20-year heat exchanger limited warranty, and a 5-year parts limited warranty, offering you peace of mind with your investment.

STANDARD FEATURES

  • Up to 97% AFUE in upflow, horizontal, and up to 95% AFUE in downflow positions
  • Multi 18-speed, constant torque (MCT) ECM blower motor
  • Enhanced diagnostics with easy to read 3-digit display for faults and status.
  • Supports single-stage cooling units
  • Insulated heat exchanger compartment
  • Cabinet air leakage less than 2.0% at 1.0 in. w.c. and cabinet air leakage less than 1.4% at 0.5 in. w.c. when tested in accordance with ASHRAE standard 193
  • Approved for Twinning applications with manufacturer’s approved accessory kit
  • Approved for Manufactured Housing/Mobile Home applications with accessory (order separately)
  • All sizes can be installed in air quality management districts with a 40 ng/J NOx emissions requirement

LIMITED WARRANTY

  • 1-Year No Hassle Replacement™ Limited Warranty *
  • 5-Year Parts Limited Warranty *
  • Additional 5-Year Parts Limited Warranty upon timely registration *
  • 20 Year Heat Exchanger Limited Warranty *

* See warranty certificate for details and restrictions

Find a Dealer

Use our guide below to find not only the right system for your needs, but the right dealer to fulfill those needs.