Is the E6N-40LB 110 right for your home?
The American E6N-40LB 110 is the 38-gallon nominal, blanket-included model in this lowboy top-connect range. Its listed body is 32 inches high and 23 inches in diameter. It offers more storage than the 28-gallon version while keeping a smaller footprint than the 48-gallon model.
Its 51-gallon first-hour rating is useful when comparing morning or evening demand, but it is not the amount of water held in the tank. American’s product page lists 34.7 gallons of rated storage. WHE checks shower flow, overlapping use and bath-filling needs before deciding whether this middle size is enough.
Verified American E6N-40LB 110 specifications
| Exact model / product item | E6N-40LB 110 / 100295359 |
|---|---|
| Nominal capacity / rated storage | 38 gallons / 34.7 gallons (35 gallons rounded in the specification sheet) |
| Type / fuel / connections | Indoor lowboy storage tank / electric / top water connections |
| Blanket included | Yes — supplied insulation blanket |
| Uniform Energy Factor | 0.92 UEF |
| First-hour rating | 51 gallons |
| Recovery at a 90°F rise | 21 gallons per hour |
| Selected electrical configuration | 240V; two 4,500W elements; product-page maximum input 4,500W |
| Drawing A: height / C: diameter | 32 / 23 inches |
| Drawing B: T&P valve center height | 24 inches |
| Water connections | ¾-inch male connections on 8-inch centers |
| Approximate shipping weight in specification sheet | 118 lb |
| Limited warranty | 6-year tank and parts coverage, subject to the written warranty |
These figures identify the linked 240V, 4,500W configuration. The broader series sheet also shows other available wattages; those are not the electrical rating of every supplied unit. First-hour delivery, stored volume and recovery rate measure different things. UEF is an efficiency rating, not a guaranteed utility bill.
Dimensions, blanket and replacement fit
The specification drawing lists a 32-inch body height and 23-inch diameter. Allow separately for top plumbing, the electrical connection, drain pan, supplied blanket and access to service panels. The product page gives 34.7 gallons of rated storage; the March 2025 specification sheet rounds that figure to 35 gallons.
American marks this exact product as “Blanket Included: Yes.” The series sheet also identifies it as shipping with a supplied insulation blanket. Follow the instructions supplied with the heater and blanket, and confirm the finished outside dimensions for a tight fit. The shared manufacturer photograph shows the lowboy series without the blanket; the three sizes have different dimensions.
Electrical supply, plumbing and service access
The 110 suffix is part of the model designation, not a 110V power requirement. This product configuration is rated 240V. WHE checks the supplied heater’s data plate, wiring diagram and existing electrical circuit before confirming the installation. Two 4,500W elements should not be added together and advertised as a 9,000W input for this selected model.
Top hot and cold connections need working room above the heater. The location also needs access to the front element and thermostat panels, drain valve and anode. WHE checks floor support for the full heater, a suitable drain pan and drainage route, water pressure, thermal expansion and temperature-and-pressure relief discharge. This conventional electric model has no combustion flue or heat-pump airflow requirement.
Compare the 28-, 38- and 48-gallon blanket-included models
| Model | Nominal / rated storage | UEF | First-hour rating | Height × diameter |
|---|---|---|---|---|
| E6N-30LB 110 | 28 / 26 gal | 0.89 | 43 gal | 30 × 20 in. |
| E6N-40LB 110 | 38 / 34.7 gal | 0.92 | 51 gal | 32 × 23 in. |
| E6N-50LB 110 | 48 / 44 gal | 0.93 | 60 gal | 34 × 26½ in. |
The 38-gallon model adds eight gallons of first-hour delivery over the 28-gallon model. The 48-gallon version adds another nine gallons, but its body is two inches taller and 3½ inches wider than this one. Check the doorway and finished installation space before increasing capacity.
All three selected configurations list 21 GPH recovery at a 90°F rise. Actual delivery depends on incoming water temperature, settings and how hot water is used. The lower-wattage E6N-40LBW and E6N-50LBW are separate variants with different delivery ratings; do not substitute their specifications for these models.
Maintenance and six-year limited warranty
The series includes a glass-lined tank, anode protection, an Incoloy stainless steel lower element and a brass drain valve. The specification sheet explicitly excludes lowboy models from its self-cleaning dip-tube design. Sediment and anode maintenance still matter, and the installed blanket must allow the required service access.
American lists six-year limited tank and parts coverage for this model. Eligibility, installation, maintenance and use conditions apply; the warranty is not six years of included labor. Review the certificate for the supplied heater, including responsibility for removal, reinstallation and other costs.
Manufacturer documents and local installation
Sources checked October 17, 2026: the official American E6N-40LB 110 product page, NRESS00117 specification sheet, March 2025, residential electric installation and care guide and limited warranty. Confirm the nameplate and documents shipped with the actual unit.
For Palm Beach Gardens, Jupiter and nearby Palm Beach County homes, WHE reviews the existing heater, access route and peak hot-water demand before confirming equipment and installation scope. See our American water heater installation page and water heater model catalog. Photos of the current model label, piping and surrounding space help us assess a replacement.
American E6N-40LB 110 FAQs
Is the E6N-40LB 110 a 40-gallon or a 38-gallon heater?
The product is marketed in the 40-gallon class, but American lists 38 gallons nominal capacity. Its product page gives 34.7 gallons rated storage, rounded to 35 gallons in the specification sheet. Its 51-gallon first-hour rating is a separate delivery measurement.
Does this exact model include an insulation blanket?
Yes. American lists “Blanket Included: Yes” for product item 100295359, and the series sheet identifies E6N-40LB as a model that ships with a supplied blanket. Confirm the packaged equipment and follow its blanket instructions.
Does the 110 suffix mean it runs on 110 volts?
No. The linked E6N-40LB 110 configuration is rated 240V with 4,500W input. The installer must verify the unit’s data plate and the existing circuit; 110 is part of the model name.
Will this lowboy fit where my old heater sits?
The listed body measures 32 inches high by 23 inches in diameter. Fit also depends on the blanket, pan, top connections, service access and route into the space. WHE checks those details before confirming a replacement.
What does the six-year warranty cover?
American lists limited tank and parts coverage, subject to its written eligibility and installation conditions. Labor, removal and reinstallation are not automatically included for six years. Review the supplied warranty certificate for the full terms.