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The Kenmore 57951 50-gallon tall residential natural gas water heater is energy-efficient, with foam insulation, and has a cobalt blue glass-lined tank with a large anode rod to protect the tank from corrosion. It also includes a self-cleaning cold water inlet tube which reduces and protects against mineral build-up in the tank. A 50-gallon natural gas water heater is the minimum recommended size for a 5-person or more household with typical water use.
  • Glass-lined steel tank with one anode rod for increased tank protection
  • 1-1/2 inches of energy-efficient foam insulation
  • Factory-installed temperature and pressure safety valve
  • 9-year warranty on tank and parts

Protection Agreements

One smart decision calls for another. Safeguard your new purchase with the best repair and replacement coverage in the business. A Sears Protection Agreement picks up where the limited manufacturer's warranty leaves off. Enjoy the peace of mind that comes from having a plan that delivers what it promises. (Learn More)
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Gas Inlet Size 3/4 in.
Height to Gas Connection (In.) 12.25
Height to Vent Hood (In.) 60.75
Height to Water Connection (In.) 59.25
Tank Diameter (In.) 21
Tank Height (In.) 57.25
Tank Insulation Thickness 1-1/2 in
Water Inlet/Outlet Size 3/4 in.
Size Category - Gallons 41 gallons to 50 gallons
Tank Nominal Capacity 50 gal.
Rated Storage Volume (gal.) 48
Color Family Gray
Uniform Energy Factor (UEF) 0.62
Materials & Finishes:
Drain Valve Plastic
Tank Lining Glass
Flow Rate:
First Hour Rating (gal.) 81
Recovery at 90 Degree Rise (gph.) 41
Power & Performance:
Gas Input (btu/hr) 40000
Maximum Operating Pressure (psi.) 150
Parts Warranty 9 year limited
Tank Warranty 9 year limited
Product Includes:
Power Cord Included No
Relief Valve Included Temperature and Pressure
Tank Diameter Range (In.) 18 In. to 22 In.
Product Overview:
Unit Location Indoor
Control Type Mechanical
Power Source:
Fuel Type Natural gas
Certifications & Ratings:
Altitude Rating (ft.) 10100
ENERGY STAR Compliant No
Heating Range (deg F.) 55 - 155
Appliance Features:
Heavy Duty Anode Rod Yes
Low NOx Burner No
Number of Anode Rods 1
Self Cleaning Yes
Tank Style Tall
Venting Atmospheric (standard)
Required Vent Size 3 in. or 4 in.

Product Documentation

Product Warranty - English
Energy Guide

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Manufacturer's Warranty
1 year parts and labor
SearsOutlet Certified
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