What the Giant GTHPCO-45 1**+GTXST-50STTP 1** costs to run
The Giant GTHPCO-45 1**+GTXST-50STTP 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.
Giant GTHPCO-45 1**+GTXST-50STTP 1** against the category
That's 16.5% below the electric water heater category average of 1,105 kWh/yr, and ranks 222 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 $34/year below that average at the national rate. See the methodology page.
What sits beside it in the ranking
Giant GTHPCO-45 1**+GTXST-50T 1** ($174/yr, 923 kWh/yr) costs a little more to run than the Giant GTHPCO-45 1**+GTXST-50STTP 1**. Giant GTHPCO-45 1**+GTXST-50STTP 1* ($174/yr, 923 kWh/yr) costs a little less.
Within the Giant lineup
Giant makes 13 ENERGY STAR certified electric water heaters; this one ranks 7 of 13 for running cost, between the brand's cheapest, the GTHPCO-45 1**+GTXST-50LBTTP 1* at $172/yr, and its priciest, the GTHPCO-45 1**+GTXST-66TTP 1** at $252/yr.
Cost over its typical lifespan
NAHB's Study of Life Expectancy of Home Components puts a typical electric water heater's service life at 11 years; run the Giant GTHPCO-45 1**+GTXST-50STTP 1** that long and it costs about $1,909 in electricity, on top of whatever it cost to buy.
Is it worth replacing?
The Giant GTHPCO-45 1**+GTXST-50STTP 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.
See what else is certified in this category before you decide.
Protecting what you have
$174/year to run is the predictable cost of the Giant GTHPCO-45 1**+GTXST-50STTP 1**; a protection plan covers the unpredictable one, a repair bill.
Sourcing
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.