Rheem ECEPH50 T2 RH400-SO Running Cost (Electric Water…
Rheem ECEPH50 T2 RH400-SO: running cost
The Rheem ECEPH50 T2 RH400-SO is certified by ENERGY STAR at 846 kWh a year, cheaper than most models in its category to run among electric water heaters currently certified.
That $159 is priced at 18.8¢/kWh, the average of all 51 state rates this site tracks. Your own state's rate is one click away.
Efficient, or not, for a electric water heater
Against the category average of 1,105 kWh/yr, this model uses 23.4% less, ranking 45 of 596 electric water heaters tracked here for running cost. That average is drawn from all 596 electric water heaters ENERGY STAR currently certifies, not an outside number, a $49/year gap from this model at the national rate. Full sourcing is in the sourcing notes.
Right next to it on the list
A rank or two either side of the Rheem ECEPH50 T2 RH400-SO: Rheem ECEPH50 T2 RH400-30 ($159/yr, 846 kWh/yr), then Rheem PROPH50 T2 RH375-30 ($159/yr, 846 kWh/yr).
Within the Rheem lineup
Ranked 12 of Rheem's 77 certified electric water heaters, this sits between the PROPH40 T0 RH120-M ($147/yr, the brand's cheapest) and the XE80T10HMS00U0 ($264/yr, its priciest).
Cost over its typical lifespan
11 years is NAHB's typical service life for this category; at $159/year, the Rheem ECEPH50 T2 RH400-SO adds up to about $1,750 in electricity over that span.
Shopping for a new one
Efficient as certified electric water heaters go, $159/year is a reasonable baseline if you're comparing what else is on the market.
Compare current ENERGY STAR certified electric water heaters before buying.
If you're keeping it
$159/year to run is the predictable cost of the Rheem ECEPH50 T2 RH400-SO; a protection plan covers the unpredictable one, a repair bill.
Where this number comes from
The full Electric Water Heater category page shows all 596 electric water heaters ranked by cost; the state-rate guide covers the half of this number that isn't the appliance. The 846 kWh/yr figure is ENERGY STAR's own certification, not a wattage estimate; exact dataset IDs are on the data sources page.