Rinnai REHP65C: running cost
The Rinnai REHP65C is certified by ENERGY STAR at 1,240 kWh a year, more expensive than most models in its category to run among electric water heaters currently certified.
That $233 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 Rinnai REHP65C compares to other electric water heaters
The category average is 1,105 kWh/yr; this model runs 12.2% above it, ranking 412 of 596 electric water heaters tracked here for running cost. 596 certified electric water heaters, one average, about $25/year of daylight between it and this model; the full methodology has the rest.
Neighbouring models
Right next to the Rinnai REHP65C on that list: Rinnai REHP65BM ($233/yr, 1,240 kWh/yr) runs slightly less, while Senville SENWH-HP65 ($233/yr, 1,240 kWh/yr) runs slightly more.
Comparing Rinnai's own models
Of the 15 ENERGY STAR certified electric water heaters Rinnai makes, the REHP65C costs the most to run, $74/year more than Rinnai's cheapest, the REHP50.
Rinnai REHP65C over 11 years
Over the 11-year service life NAHB reports for this category, running the Rinnai REHP65C costs roughly $2,564 in electricity, separate from the purchase price.
Shopping for a new one
Running above the category average, $233/year is exactly the kind of number that makes a newer, more efficient model pay for itself faster.
See what else is certified in this category before you decide.
If you're keeping it
The Rinnai REHP65C already costs $233/year to run; a repair bill on top of that is the kind of expense a protection plan exists to smooth out.
How this was checked
Nothing here is estimated from a nameplate wattage; the 1,240 kWh/yr is ENERGY STAR's own certified figure for this model. At rank 412 of 596 for running cost, see the electric water heater category page for the rest of the field, or the guide to how much your state matters.