Bradford White Defender Safety System® Energy Saver High EF Damper 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 the highest energy factor (EF) rating of our atmospheric vent models. These models qualify for the current Energy Star EF requirement and for the September 1st, 2010 EF requirement, as well as most utility company rebate programs.

• High Energy Factor (EF) Ratings- These models qualify for most energy rebate programs as well as the current Energy Star EF requirement and for the September 1^st, 2010 EF requirement.
• 2 Models (40 & 50 gallon capacities)
• 38,000 - 40,000 BTU/Hr.
• FVIR Defender Safety System®

(Sample model numbers include: D‑4‑403S6FBN, D‑4‑504S6FBN)

Standard Energy Saver 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