The Bradford White RG2DV40S6N-FLX is a premium 40-gallon sealed combustion direct vent natural gas water heater engineered for residential homes requiring a safe, clean-air intake and exhaust solution. The coaxial 3" ID / 5" OD direct vent system pulls fresh air from outside and exhausts combustion gases directly outdoors, ideal for installations without chimney access.
Powered by a reliable 38,000 BTU burner, this model delivers a solid 41 GPH recovery rate at a 90°F rise. Bradford White’s ICON System® delivers excellent temperature precision, performance stability, and intelligent LED diagnostics.
This unit uses a millivolt gas control with integrated piezo ignitor — meaning no external electricity is required to operate, making it ideal for installations where electrical access is limited.
Additional safety comes from Bradford White’s Defender Safety System®, which prevents the burner from igniting if flammable vapors are detected nearby.
40-gallon direct-vent natural gas heater
38,000 BTU input
41 GPH recovery @ 90°F rise
Sealed combustion w/ coaxial venting (3" ID / 5" OD)
ICON System® advanced temperature control & diagnostics
Millivolt-powered — no external electricity needed
Piezo ignitor for reliable pilot lighting
Defender Safety System® for vapor ignition protection
Vitraglas® tank lining protects against corrosion
2" non-CFC insulation reduces heat loss
Factory-installed fittings, P/T relief valve, and heat traps
Side-tap connections compatible with hydronic/space heating systems
Homes requiring direct-vent sealed combustion
HVAC and plumbing contractors
Utility rooms without chimney venting
Natural gas residential installations
Replacement of older 40-gallon direct-vent heaters
This Bradford White direct vent model is engineered for long-term durability, efficient operation, and safe performance.