Damper Atmospheric Vent Gas Models

These models feature an automatic flue damper that helps to reduce stand-by heat loss. The flue damper, combined with additional insulation and heat traps, helps these units achieve one of the highest Energy Factor (EF) ratings of our atmospheric vent models.

Product Highlights
Titanium Propane Burner
Brass Drain Valve
Energy Star


Standard Features

  • Honeywell self diagnostic electronic gas control
  • Advanced ScreenLok® Technology Flame Arrestor design
  • Resettable thermal switch
  • Flammable vapor sensor
  • Automatic Flue Damper
  • Compatible with Optional Accessory Packages
  • Factory installed Hydrojet® Total Performance System
  • Vitraglas® lining
  • ¾" NPT factory installed dielectric waterway fittings
  • Protective magnesium anode rod
  • "3" x "4" Snap-Lock draft diverter
  • T&P relief valve included
  • 2" Non-CFC foam insulation
  • Low restriction brass drain valve