AO Smith Conservationist 50-Gallon Electric Water Heater (ENS-50)
AO Smith Conservationist 50-Gallon Electric Water Heater (ENS-50) Review
The AO Smith Conservationist 50-Gallon Electric (ENS-50) is a sub-model of the Conservationist 50-gallon electric line, distinguished from the ENT-50 by specific feature variations. The "S" suffix typically indicates a slightly different element configuration or insulation level than the standard "T" model.
Specs: 50 gallons stored, two 4500W heating elements, UEF 0.93, 62-gallon FHR, 6-year tank and parts warranty. Glass-lined steel tank, magnesium anode rod, polyurethane foam insulation. ENERGY STAR certified.
The Conservationist line is A.O. Smith's mainstream mid-tier, equivalent to Rheem Performance Electric. Same 6-year warranty, similar engineering, similar pricing. The choice between Conservationist and Rheem Performance usually depends on which big-box channel is convenient (Lowe's for A.O. Smith, Home Depot for Rheem).
About $599 at Lowe's, $1,200 installed. For longer ownership horizons (10+ years), the upgrade to A.O. Smith Signature Premier (12-year warranty) or Rheem Performance Platinum (12-year warranty) is usually the better economic choice.