Kenmore 57640 40 gal. 6-Year Short Natural Gas Water Heater

Kenmore 57640 40 gal. 6-Year Short Natural Gas Water Heater
Item # 04257640000P Model # 57640

Kenmore 57640 40 gal. 6-Year Short Natural Gas Water Heater

The Kenmore 57640 40-gallon short 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.

California residents: If you live in an air quality management district that requires a low-emission water heater, click to see all water heaters that meet local requirements. Districts include Bay Area, Sacramento Metro, San Joaquin Valley, Santa Barbara, South Coast (most of LA county), Ventura County and Yolo-Solano. Click for a searchable ZIP code list. For help, call 1-800-549-7853.

  • 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


Capacity and Flow:_UP
Tank Capacity 40 gal.
Recovery at 90 Degree Rise (gph.) 41
First Hour Delivery (gal.) 69
Dimensions and Capacity:
Tank Insulation Thickness 2 in.
Required Vent Size 3 in. or 4 in.
Tank Diameter (In.) 22
Tank Height (In.) 47.75
Height to Water Connection (In.) 49.75
Water Inlet/Outlet Size 3/4 in.
Height to Vent Hood (In.) 51.5
Gas Inlet Size 3/4 in.
Height to Gas Connection (In.) 12.25
General Features:
Number of Anode Rods 1
Heat Trap Fittings Yes
Power Cord Included No
Control Type Digital
Tank Style Short
Low NOx Burner No
Color Family Gray
Altitude Rating (ft.) 10100
Heavy Duty Anode Rod No
Unit Location Indoor
Drain Valve Plastic
Relief Valve Included Temperature and Pressure
Self Cleaning Yes
Tank Lining Glass
Venting Atmospheric (standard)
Parts Warranty 6 year limited
Tank Warranty 6 year limited
ENERGY STAR Compliant No
Power and Performance:
Fuel Type Natural gas
Energy Factor 0.62
Gas Input (btu/hr) 40000
Maximum Operating Pressure (psi.) 150
Heating Range (deg F.) 55 - 155


ProductURL /kenmore-40-gal-6-year-short-nature-gas
FulfilledBy Sears
ItemPNO 04257640000
SoldBy Sears
BrandName Kenmore
MfgPartNumber 57640

SSIN : 04257640000P

UID : d1d15cf3-84d9-4060-af7d-d4d3a5f0d0ca

PartNumber 04257640000P