Ruud PROUH40 T0 RU120-MSO Running Cost (Electric Water…
Running cost for the Ruud PROUH40 T0 RU120-MSO
At 780 kWh/yr, the Ruud PROUH40 T0 RU120-MSO's ENERGY STAR certification puts it one of the cheaper models in its category to run against every other certified electric water heater.
That $147 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.
How the Ruud PROUH40 T0 RU120-MSO compares to other electric water heaters
Against the category average of 1,105 kWh/yr, this model uses 29.4% less, ranking 18 of 596 electric water heaters tracked here for running cost. 596 certified electric water heaters, one average, about $61/year of daylight between it and this model; the full methodology has the rest.
Neighbouring models
Right next to the Ruud PROUH40 T0 RU120-MSO on that list: Ruud PROUH40 T0 RU120-M ($147/yr, 780 kWh/yr) runs slightly less, while GE Profile PK65S10FNY01 ($149/yr, 792 kWh/yr) runs slightly more.
Within the Ruud lineup
Ranked 3 of Ruud's 51 certified electric water heaters, this sits between the PROUH40 T2 CD400-15 ($121/yr, the brand's cheapest) and the PROUH80 T0 RU120-MSO ($264/yr, its priciest).
Ruud PROUH40 T0 RU120-MSO over 11 years
NAHB's Study of Life Expectancy of Home Components puts a typical electric water heater's service life at 11 years; run the Ruud PROUH40 T0 RU120-MSO that long and it costs about $1,613 in electricity, on top of whatever it cost to buy.
Weighing a replacement
Efficient as certified electric water heaters go, $147/year is a reasonable baseline if you're comparing what else is on the market.
Worth comparing a few current certified models before deciding.
If you're keeping it
Whether or not the Ruud PROUH40 T0 RU120-MSO ever needs replacing, a repair is the more common failure for a electric water heater, one a protection plan budgets for ahead of time.
How this was checked
Nothing here is estimated from a nameplate wattage; the 780 kWh/yr is ENERGY STAR's own certified figure for this model. Ranked 18 of 596, the Ruud PROUH40 T0 RU120-MSO sits in the middle of the electric water heater category, see the guide to why your state changes this number for the other half of the math.