What the RELIANCE WATER HEATERS RHPCO-45 1**+RXST-50S 1** costs to run
The RELIANCE WATER HEATERS RHPCO-45 1**+RXST-50S 1** is certified by ENERGY STAR at 923 kWh a year, cheaper than most models in its category to run among electric water heaters currently certified.
The $174 figure above uses the simple average of all 51 published state rates. Pick your state for the real number.
Where this ranks
That's 16.5% below the electric water heater category average of 1,105 kWh/yr, and ranks 241 of 596 certified electric water heaters for annual running cost, 1 being cheapest. Every one of the 596 currently-certified electric water heaters feeds that average, putting this model about $34/year under it. See how it's calculated on the how it is calculated page.
The closest alternatives by cost
Sorted by running cost among electric water heaters, one step cheaper is Lochinvar LHPCO-45 1**+LXST-50TTTP 1** ($174/yr, 923 kWh/yr), and one step pricier is RELIANCE WATER HEATERS RHPCO-45 1**+RXST-50SG 1** ($174/yr, 923 kWh/yr).
Comparing RELIANCE WATER HEATERS's own models
RELIANCE WATER HEATERS makes 28 ENERGY STAR certified electric water heaters; this one ranks 7 of 28 for running cost, between the brand's cheapest, the 10-50-DHPTS 2** at $156/yr, and its priciest, the 10-80-DHPTV 2** at $311/yr.
RELIANCE WATER HEATERS RHPCO-45 1**+RXST-50S 1** 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 RELIANCE WATER HEATERS RHPCO-45 1**+RXST-50S 1** that long and it costs about $1,909 in electricity, on top of whatever it cost to buy.
Is it worth replacing?
The RELIANCE WATER HEATERS RHPCO-45 1**+RXST-50S 1** is already efficient for its category at $174/year. If you're shopping and comparing options, this is roughly what a well-chosen new electric water heater costs to run.
Worth comparing a few current certified models before deciding.
Protecting what you have
A electric water heater like the RELIANCE WATER HEATERS RHPCO-45 1**+RXST-50S 1** 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.
The data behind this page
Two sourced numbers, nothing modeled: ENERGY STAR's certified kWh/yr for this exact model, and EIA's published state electricity rate. 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.