• Durable aluminized steel tubular heat exchanger.
  • Stainless-steel secondary heat exchanger.
  • Two-stage gas valve.
  • Hot surface igniter.
  • Quiet multi-speed ECM circulator blower motor.
  • Control board with self-diagnostics and Low-voltage terminal block.
  • Natural gas and propane (LP) convertible.
  • Designed for multi-position installation: Upflowed, horizontal.
  • Industry-standard cabinet sizes for easy replacement, installation and add-on cooling.
  • Convenient left or right connection for gas and electric service.
  • Removable bottom for side or bottom return applications.