Bradford White Water Heater Installation & Replacement

Compare current upright electric models

These nine six-year models cover 30–55 gallons nominal capacity. The guides use Bradford White’s standard 240V, single-phase configuration with two 4,500W elements operating one at a time. Compare rated storage, delivery and the finished installation space before choosing.

Blanket dimensions: RE240S6 and RE250S6 measurements exclude their supplied insulation blankets. Allow additional space for the blanket, pan, piping and service. First-hour rating includes reheating during a standardized hour; it is not stored volume.

RE340S6 and RE340R6 share listed dimensions but have different delivery and efficiency ratings. RE250T6 is the current tall 50-gallon model; the archived RE350T6 has separate documentation. RE255T6 provides 55 gallons of rated storage, compared with 45 gallons for the three nominal 50-gallon models.

See Bradford White’s current upright electric family and 1201-0926 specification sheet. For other brands and sizes, browse the water heater model catalog.

Standard tall gas models: 30, 40 and 50 gallons

Each size has a narrower RG1 version and a wider RG2 version. The guides below cover both tall versions in natural gas and propane (LP), using the standard six-year models and side T&P arrangement. Compare the full dimensions and published delivery as well as nominal capacity.

The 1101-1125 specification lists one storage, first-hour and UEF set per base row, with separate natural gas and LP input and recovery columns. It directs N to be changed to X for propane. First-hour delivery includes recovery during the test; it is not stored volume. The current Atmospheric Vent Gas family also contains other body styles; this comparison covers the selected T models only.

All listed models use 3/4-inch NPT water connections on 8-inch centers. Jacket diameter and exhaust height do not establish the complete installation footprint. WHE checks depth, venting, combustion air, gas supply and service access before recommending a replacement. Optional top T&P placement must be specified when ordering.

75- and 100-gallon high-input natural gas comparison

For a larger residential gas replacement, compare the RG275H6N 75-gallon guide with the RG2100H6N 100-gallon guide. Both use atmospheric venting. Review stored capacity, tested delivery and the available installation space together.

The 100-gallon model adds 23 gallons of rated storage and 22 gallons to the first-hour rating, with a 3 GPH increase in recovery at a 90°F rise. Its flue connection is 9 11/16 inches higher and its body is larger. These are natural gas guides; propane uses separate X-suffix models.

The listed vent size and appliance gas connection do not establish that an existing vent or supply line is suitable. WHE checks gas supply, combustion air, venting and service access before recommending either model. Sources checked October 17, 2026: the current manufacturer family and U.S. specification 1108-0826.

Lowboy electric model comparison

The lowboys are a separate residential family from the short upright models above. Compare published capacity and the completed installation footprint; three models require a supplied 2-inch insulation blanket that is excluded from the listed dimensions.

RE130L6, RE240L6 and RE250L6 require their supplied blankets. Their bare jacket diameters do not describe the finished body width. Allow additional room for the blanket, drain pan, fittings and service access. The model guides include water-connection heights and individual fit comparisons.

These guides use the sheet’s standard 240V, single-phase, non-simultaneous configuration with two 4,500W elements; one operates at a time. Other configurations require verification against the model-specific ordering restrictions and supplied nameplate. Standard side T&P placement is shown in the guides.

Sources: Bradford White’s current U.S. Lowboy Electric family, 1203-0926 specification and supplied-blanket instructions. The current 28-gallon non-blanketed listing is RE230LN6; older RE230L literature is archived separately.

Large Volume Light-Service electric comparison

All three list 50 GPH recovery at a 100°F temperature rise, using two 6,100W elements simultaneously. A larger tank adds stored reserve without increasing the published heating input in this family. Recovery is separate from first-hour rating; the current sheet does not publish a residential first-hour rating or model-specific UEF.

The current family page includes the -1 suffix; specification 1415-0526 uses the base model names. SLE2120T6-1 is listed at 119 gallons despite 120 appearing in the model number. The family carries six-year limited tank and one-year limited component-parts coverage, subject to its commercial warranty.