Rinnai REHP65CW Running Cost (Electric Water Heater)
Running cost for the Rinnai REHP65CW
The Rinnai REHP65CW is certified by ENERGY STAR at 1,234 kWh a year, more expensive than most models in its category to run among electric water heaters currently certified.
The $232 figure above uses the simple average of all 51 published state rates. Pick your state for the real number.
Rinnai REHP65CW against the category
That's 11.7% above the electric water heater category average of 1,105 kWh/yr, and ranks 373 of 596 certified electric water heaters for annual running cost, 1 being cheapest. The category average comes from every electric water heater ENERGY STAR currently certifies (596 models), not an outside benchmark, about $24/year above that average at the national rate. See the methodology page.
What sits beside it in the ranking
Rinnai REHP65W ($232/yr, 1,234 kWh/yr) costs a little more to run than the Rinnai REHP65CW. Midea US3-RSJ-15/250RDVN3-L4 ($232/yr, 1,234 kWh/yr) costs a little less.
Comparing Rinnai's own models
Rinnai makes 15 ENERGY STAR certified electric water heaters; this one ranks 11 of 15 for running cost, between the brand's cheapest, the REHP50 at $159/yr, and its priciest, the REHP65C at $233/yr.
What this adds up to over time
Over the 11-year service life NAHB reports for this category, running the Rinnai REHP65CW costs roughly $2,552 in electricity, separate from the purchase price.
Is it worth replacing?
At $232/year, this is on the expensive side for a electric water heater; the cheapest certified model in this category runs about $121/year, worth knowing before buying either the Rinnai REHP65CW or its replacement.
Compare current ENERGY STAR certified electric water heaters before buying.
Protecting what you have
A electric water heater like the Rinnai REHP65CW is a real household expense whether or not it needs replacing yet; a protection plan is one way to budget for a repair rather than a full replacement.
Sourcing
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 1,234 kWh/yr figure is ENERGY STAR's own certification, not a wattage estimate; exact dataset IDs are on the data sources page.