80% AFUE GFM80S-Series


  • Durable aluminized steel tubular heat exchanger
  • Hot-surface ignition for dependable operation
  • Quiet multi-speed ECM blower motor 
  • Natural gas and propane (LP) convertible, LP kit Included
  • Designed for multi-position installation: Upflow,  downflow, horizontal
  • Industry-standard cabinet sizes for easy replacement, installation and add-on cooling
  • Convenient left or right connection for gas and electric service
  • Removable base for side or bottom return applications