Kenmore Power Miser 40-Gallon Natural Gas Water Heater
Kenmore Power Miser 40-Gallon Natural Gas Water Heater Review
The Kenmore Power Miser 40-Gallon Natural Gas Water Heater is the smaller-capacity sibling of the Kenmore Power Miser 50-Gallon. Sears' value-positioned 40-gallon gas tank, built by A.O. Smith with Kenmore branding.
Specs: 38,000 BTU input, UEF 0.58, 70-gallon FHR, 6-year tank and parts warranty. Atmospheric vent. Electronic ignition. Magnesium anode rod, polyurethane foam insulation.
The 38K BTU burner is slightly below the typical 40K BTU residential standard — a cost-saving choice that produces marginally slower recovery. For 1-2 person households, the recovery difference is invisible. For 3+ person households, the 50-gallon Kenmore Power Miser provides more comfortable margin.
About $479 unit, $1,150 installed. Distribution through Kenmore Direct online ordering and remaining Sears retail channels. For most contemporary buyers, the equivalent A.O. Smith ProMax 40-gallon at Lowe's is more readily available.
Right buyer: Kenmore brand preference from prior Sears purchases, particularly replacing an existing Kenmore Power Miser 40-gallon. Service and parts are A.O. Smith-supported through A.O. Smith's network with the Kenmore model number used for identification.
- Natural gas combustion — faster recovery than electric resistance at comparable tank size
- Below-average UEF 0.62 — modern standard models reach 0.65+, condensing 0.95+
- 6-year warranty — below the 8–12 year average for premium models in this class