Rheem Performance 50-Gallon Electric Water Heater
Rheem Performance 50-Gallon Electric Water Heater Review
The Rheem Performance 50-Gallon Electric Water Heater (XE50M06ST45U1) is Rheem's volume budget-tier 50-gallon electric tank — and one of the most-replaced electric tanks in the US market. 62 GPH first-hour delivery, dual 4,500W elements, 0.92 UEF, 6-year warranty, $499–$599 retail. The right pick for 3–5 person electric households where heat-pump conversion isn't viable.
Headline specifications
- Capacity: 50 gallons
- Fuel: Electric (dual 4,500W elements, 240V)
- First Hour Delivery: 62 GPH
- Recovery: 21 GPH at 90°F rise
- Energy Factor (UEF): 0.92
- Warranty: 6-year tank and parts
- Dimensions: 54.5" H × 20" diameter
Who this model is for
50-gallon electric is the most-shopped electric tank size in the US — calibrated for 3–5 person households without natural gas service or with infrastructure that makes gas conversion impractical. The 62 GPH FHD covers consecutive morning showers plus dishwasher prep. For higher simultaneous demand or larger households, step up to 80G (or move to a heat pump).
Where it beats the alternatives
Vs AO Smith Signature 100 50G Electric ($479): equivalent specs, slightly lower AO Smith price. Choice often comes down to retailer.
Vs Rheem Marathon 50G ($1,299): Marathon's lifetime warranty justifies the $700+ premium for long-horizon owners. For 5-year-or-less owners, Performance 50G is the right pick.
Vs Rheem ProTerra Hybrid 50G HP ($1,799): ProTerra wins decisively on lifecycle math when install space is available and rebates apply. Performance 50G is the right pick when heat-pump install isn't viable.
Where it falls short
Operating cost $400–$500/year for typical 3-person demand — about 3.5× higher than heat pump. 21 GPH recovery slower than gas alternatives. 6-year warranty is the shortest in the Rheem electric lineup.
Install considerations
Dedicated 30-amp 240V circuit. Standard water connections. No gas, venting, or combustion air. 54.5" height and 20" diameter fits typical basement and closet installs.
Install cost: $200–$500 like-for-like.
Maintenance
- Annual flush
- Anode inspection year 3, replace year 5
- Element inspection year 8–10
Bottom line
The Rheem Performance 50-Gallon Electric is the budget-tier default for electric 3–5 person households without heat-pump install space. Lowest install scope of any water heater category. For long ownership or hard-water installations, step up to Marathon; for households with HP install space, the ProTerra dominates on lifecycle math. Click through to Amazon or Home Depot for live pricing.
- Lowest upfront cost in the 50G electric category
- 62 GPH FHD covers 3–5 person demand
- 0.92 UEF — competitive for resistance electric
- Simple install (no gas, no venting)
- Wide Home Depot availability
- 6-year warranty — shortest in the lineup
- Operating cost $400–$500/year (3.5× heat pump)
- 21 GPH recovery slower than gas
- Magnesium anode depletes faster in hard water — needs proactive replacement