• Heavy-duty aluminized-steel tubular heat exchanger
  • Stainless-steel secondary
    heat exchanger
  • ComfortNet Communicating System compatible
  • Uses ComfortNet™ communicating, two-stage or single-stage thermostats
  • Self-calibrating modulating gas valve auto-configured for each installation
  • Quiet variable-speed induced draft blower or cooling demand

GMVM97 Up to 98% AFUE Performance Multi-Position Installation ComfortNet™ Commun