We are excited to share the details on upcoming upgrades within the A801X furnace family. As of January 11, 2021, all 17.5”, 80,000 BTU/h and 24.5”, 120,000 BTU/h models include a new, improved heat exchanger design. This design is optimized to reduce burner operating noise in both liquid propane (LP) and natural gas applications.
For details on the models that are phasing out with these changes, as well as the models that will replace them:
Download Product Bulletin (PDF)