Appliances / Window air conditioners / ZAFRO

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WindowTop 10% cheapest to runENERGY STAR certified

ZAFRO 54091EWA0-8K-ZAZ

8,100 BTU · Window room air conditioner

Electricity, 10 years
$678
Per year
$68

Check the price at the store, then add $678 of electricity to get the true cost. We may earn a commission if you buy through these links.

  1. Price. Check what it costs at the store.
  2. Plus running cost. Add $678 of electricity over 10 years. That is the part the price tag hides.
  3. Compare. Pick your state below, then check the cheaper-to-run models of the same size.
Per year (U.S. avg)
$68
Over 10 years
$678
Saves vs the federal maximum
$68/yr
Rank for running cost
#48 of 492

About the ZAFRO 54091EWA0-8K-ZAZ

The ZAFRO 54091EWA0-8K-ZAZ is a 8,100 BTU window room air conditioner certified by ENERGY STAR. Its official test figure is 373 kWh of electricity a year, which at the U.S. average price of 18.19¢ per kWh comes to $68 a year, or $678 over a typical 10-year life.

That is 50% less energy than the federal maximum for this type of air conditioner (745 kWh a year), a saving of about $68 a year compared with a model that only just meets the standard.

Among 492 window models it ranks #48 for running cost, in the cheapest 10%. The cheapest model of this type would save $206 in electricity over 10 years, though it may differ in size and features.

Cost to run where you live

Electricity per year
$68
Electricity over 10 years
$678
Add the price you pay
+ $678

373 kWh a year (ENERGY STAR test figure) × 18.19¢ per kWh, the average residential price in the U.S. for Jan–Aug 2026 (EIA). Your bill depends on your utility and how you use it.

One of the cheapest to run

No ENERGY STAR model of the same type and size uses less electricity.

Specs

BrandZAFRO
Model54091EWA0-8K-ZAZ
TypeWindow
Energy use373 kWh / year
Federal maximum for this type745 kWh / year
Size8,100 BTU
Width18.9 in
Efficiency (CEER)16.3
MountingStraddles Windowsill
Voltage115 V
Inverter (variable speed)Yes
Heat modeNo
RefrigerantR-32
Height15.4 in
Depth30.4 in
Weight63.3 lb

Specs and energy use from the ENERGY STAR certified products list (U.S. EPA). An asterisk in a model number stands for colour or finish codes. HouseholdLeak is not affiliated with ENERGY STAR or the EPA.

Questions people ask

How much does the ZAFRO 54091EWA0-8K-ZAZ cost to run?

About $68 a year at the U.S. average electricity price (18.19¢/kWh), based on its ENERGY STAR rating of 373 kWh a year. In a state with expensive power it can be much more; pick your state on this page to see your number.

How much will the ZAFRO 54091EWA0-8K-ZAZ cost in electricity over its life?

About $678 over 10 years, a typical life for a room air conditioner. Add that to the price you pay to get the true cost to own.

Is the ZAFRO 54091EWA0-8K-ZAZ energy efficient?

Yes. It is ENERGY STAR certified and uses 50% less energy than the federal maximum for its type.

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