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Overview

The Kenmore 57641 40-gallon tall natural gas water heater is energy-efficient, with foam insulation, and has a cobalt blue glass-lined tank with anode rod to protect the tank from corrosion. It also includes a self-cleaning cold water inlet tube that reduces and protects against mineral build-up in the tank. A 40-gallon natural gas water heater is the minimum recommended size for a 2- to 4-person household with typical water use.

  • 6-year warranty on tank and parts
  • 2 inches of energy-efficient foam insulation
  • Self-cleaning cold water inlet tube
  • Cobalt blue glass-lined tank with anode rod for corrosion protection
  • Factory-installed temperature and pressure relief valve



Specifications

Dimensions
Gas Inlet Size3/4 in.
Height to Gas Connection (In.)12.25
Height to Vent Hood (In.)62
Height to Water Connection (In.)60.25
Tank Diameter (In.)20
Tank Height (In.)58.25
Tank Insulation Thickness2 in.
Water Inlet/Outlet Size3/4 in.
Capacity
Size Category - Gallons31 gallons to 40 gallons
Tank Nominal Capacity40 gal.
Rated Storage Volume (gal.)38
Certifications & Ratings
Altitude Rating (ft.)10100
ENERGY STAR CertifiedNo
Color
Color FamilyGray
Controls
Control TypeDigital
Materials & Finishes
Drain ValvePlastic
Tank LiningGlass
Energy
Uniform Energy Factor (UEF)0.61
Flow Rate
First Hour Rating (gal.)65
Recovery at 90 Degree Rise (gph.)36
Power Source
Fuel TypeNatural gas
Power & Performance
Gas Input (btu/hr)35500
Maximum Operating Pressure (psi.)150
Appliance Features
Heat Trap FittingsYes
Heavy Duty Anode RodNo
Low NOx BurnerNo
Number of Anode Rods1
Self CleaningYes
Tank StyleTall
VentingAtmospheric (standard)
Temperature
Heating Range (deg F.)55 - 155
Warranty
Parts Warranty6 year limited
Tank Warranty6 year limited
Product Includes
Power Cord IncludedNo
Relief Valve IncludedTemperature and Pressure
Venting
Required Vent Size3 in. or 4 in.
Product Overview
Unit LocationIndoor

Manufacturer's Warranty
1 year parts and labor
American Freight Certified
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