A.O. Smith Signature 100 38-Gallon Lowboy 4500-Watt Double Element Electric Water Heater - Item #816156 | Model #E6-40L45DVB
A. O. Smith's Signature 100 Series 38-Gallon Lowboy 6-Year Limited Warranty Electric Water Heater is designed to provide efficient and reliable hot water for households with 2 to 3 people when sized appropriately. Our unique low profile design with top connect water connections is ideally suited for installations with space constraints. A. O. Smith's 38-gallon model is designed to last. It features dual copper heating elements, a protective anode rod and a ceramic fused tan
k shield designed to reduce corrosion and provide ultimate tank protection. It also features a self-cleaning dip tube designed to reduce sediment build-up and extend the overall life of the water heater. This added protection comes with a 6-year limited warranty to give you additional peace of mind. Want to save money on your energy bills? This model operates at a 0.92 Uniform Energy Factor (UEF) which can reduce your energy consumption compared to less efficient models.
Features
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Ideal hot water delivery for households with 2-3 people when sized appropriately
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Two 4,500-watt copper heating elements provide a first hour delivery of 51 gallons
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Save money and energy with this energy efficient model that operates at a 0.92 Uniform Energy Factor (UEF)
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Low-profile 32-in H x 23-in diameter design with top water connections for easier installation under counters, bathroom vanities or in cabinets
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Premium heating elements, anode rod and fused ceramic tank shield provide superior tank protection and extend water heater life
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Non-CFC polyurethane foam insulation and factory-installed heat trap nipples reduce heat loss for maximum efficiency and energy savings
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Easy temperature control with adjustable thermostat can be set higher for dishwashers and laundry machines or lower as needed
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Factory-installed temperature and pressure relief valve and tamper-proof drain valve ensures safe operation
Specifications
Diameter (Inches) |
23.0 |
Nominal Capacity (Gallons) |
38.0 |
Family Size |
3.0 |
Rated Storage Capacity |
35-Gallon |
Height (Inches) |
32.0 |
Water Connection Size |
3/4-in |
Insulation Thickness (Inches) |
1.5 |
Weight (lbs.) |
118.0 |
| Thermostat Range |
200 °F – 400 °F (93 °C – 204 °C) |
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| Exterior Dimensions |
14" W × 25 ¾" D × 26" H (356 mm × 654 mm × 660 mm) |
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| Shipping Weight |
95 lb (43 kg) |
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| Gas Inlet |
½" NPT (manifold pressure: NG 5" WC | LP 10" WC) |
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| Baskets Supplied |
(2) nickel-plated wire baskets |
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What our Experts Think
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Reliable hot water for small households – The 38-gallon capacity is ideal for homes with 2–3 people, providing dependable daily hot water supply.
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Powerful dual heating elements – Two 4500-watt copper elements deliver strong heating performance and faster recovery for showers, laundry, and dishes.
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Compact lowboy design – A low-profile tank fits easily in tight spaces like cabinets, under counters, or utility closets.
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Energy-efficient operation – With a Uniform Energy Factor around 0.92–0.94, it helps reduce energy usage while maintaining reliable performance.
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Long-lasting tank protection – Features an anode rod and fused ceramic tank shield to help prevent corrosion and extend tank life.
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Built-in safety features – Factory-installed temperature & pressure relief valve and tamper-resistant drain valve provide safe, dependable operatio
Q&A
Q: What type of water heater is the E6-40L45DVB?
A: It’s a 38-gallon lowboy electric water heater designed for residential use where space is limited, such as under counters or in cabinets.
Q: How powerful is the heating system?
A: The unit features two 4,500-watt copper heating elements, delivering strong heating performance and quick recovery.
Q: How much hot water can it deliver?
A: It offers a first-hour delivery of around 50–57 gallons, making it suitable for homes with 2–3 people.
Q: Is the water heater energy efficient?
A: Yes, it operates at about 0.92–0.94 Uniform Energy Factor (UEF) and includes foam insulation to help reduce heat loss and energy costs.
Q: What safety and durability features does it include?
A: The heater includes a fused ceramic tank shield, anode rod protection, temperature-pressure relief valve, and tamper-proof drain valve for safe and long-lasting operation.
Q: What warranty comes with this model?
A: It includes a 6-year limited residential warranty on the tank and parts.
Q: Who is this water heater best for?
A: Ideal for small to medium households (2–3 people) needing a compact electric water heater with reliable hot water supply.
Maintenance Tips
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Flush the Tank Annually: Drain and flush the tank to remove sediment buildup that can reduce efficiency and damage heating elements.
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Inspect the Anode Rod: Check the anode rod after the first 6 months and then yearly; replace it if heavily corroded to protect the tank from rust.
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Check Heating Elements: Periodically inspect the two 4500-W heating elements for scale buildup or wear to maintain consistent hot water performance.
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Test the T&P Relief Valve: Ensure the temperature-pressure valve works properly to maintain safe pressure levels.
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Inspect for Leaks: Check water connections, drain valve, and fittings regularly for leaks or corrosion.
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Maintain Clear Space: Keep the area around the heater clean and ventilated for safe operation.
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Professional Inspection: Schedule periodic service by a qualified technician to maintain efficiency and extend lifespan.
Damage 
Loss 
Theft 
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