Comfort Aire RXTS-121A Running Cost (Room Air Conditioner)
Comfort Aire RXTS-121A: running cost
ENERGY STAR certifies the Comfort Aire RXTS-121A at 600 kWh/yr, about average for its category to run for its category.
The $113 figure above uses the simple average of all 51 published state rates. Pick your state for the real number.
Where this ranks
That's 0.5% below the room air conditioner category average of 603 kWh/yr, and ranks 263 of 447 certified room air conditioners for annual running cost, 1 being cheapest. Every one of the 447 currently-certified room air conditioners feeds that average, putting this model about $1/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 room air conditioners, one step cheaper is Century RXTS-121A ($113/yr, 600 kWh/yr), and one step pricier is Danby DAC120ECBIWDB ($113/yr, 600 kWh/yr).
Same brand, different models
Comfort Aire makes 4 ENERGY STAR certified room air conditioners; this one ranks 3 of 4 for running cost, between the brand's cheapest, the RXTS-81A at $75/yr, and its priciest, the RADS-253R03 at $254/yr.
Cost over its typical lifespan
10 years is NAHB's typical service life for this category; at $113/year, the Comfort Aire RXTS-121A adds up to about $1,128 in electricity over that span.
Shopping for a new one
The Comfort Aire RXTS-121A is already efficient for its category at $113/year. If you're shopping and comparing options, this is roughly what a well-chosen new room air conditioner costs to run.
See what else is certified in this category before you decide.
Protecting what you have
A room air conditioner like the Comfort Aire RXTS-121A 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
Nothing here is estimated from a nameplate wattage; the 600 kWh/yr is ENERGY STAR's own certified figure for this model. Ranked 263 of 447, the Comfort Aire RXTS-121A sits in the middle of the room air conditioner category, see the guide to why your state changes this number for the other half of the math.