One unit, 8 brandsNCG-06CI/X1E-W

ZAFRO 54091EWA0-6K-ZA = KISSAIR NCG-06CI/X1E-W · Window AC filed by KISSAIR and 7 other brands

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KISSAIR
ZAFRO
Antarctic Star
COWSAR
Electactic
NEPO
NINGPU
R.W.FLAME

DOE certified cooling, every brand

6,200BTU/hDOE test

Window · CEER 15.1 · 460 W

6,200 BTU/h under every nameChoose on price, warranty and what's in stock.

DOE data as of 2026-11-03DOE record

KISSAIR 54091EWA0-6K-KA, ZAFRO 54091EWA0-6K-ZA, Antarctic Star 54091EWA0-6K-AS, COWSAR 54091EWA0-6K-CS, Electactic 54091EWA0-6K-EL, NCG***-06CI/X1E (NEPO and NINGPU) and others: all filed with DOE under one basic model, NCG-06CI/X1E-W, certified at 6,200 BTU/h. DOE data as of 2026-11-03.

Sold as

KISSAIR
54091EWA0-6K-KA, 54091EWA0-6K-KAZ, NCG-06CI/X1E, NCG-06CI/X1E-W, 54091EWA0-6K-KS, 54091EWA0-6K-KSZ

6,200 BTU/h

No Amazon listing matched as of 2026-11-03.
ZAFRO
54091EWA0-6K-ZA, 54091EWA0-6K-ZAZ, NCG-06CI/X1E, NCG-06CI/X1E-W

6,200 BTU/h
Check price on Amazon
Antarctic Star
54091EWA0-6K-AS, 54091EWA0-6K-ASZ, NCG-06CI/X1E, NCG-06CI/X1E-W

6,200 BTU/h

No Amazon listing matched as of 2026-11-03.
COWSAR
54091EWA0-6K-CS, 54091EWA0-6K-CSZ, NCG-06CI/X1E, NCG-06CI/X1E-W

6,200 BTU/h

No Amazon listing matched as of 2026-11-03.
Electactic
54091EWA0-6K-EL, NCG-06CI/X1E, NCG-06CI/X3E-W

6,200 BTU/h

No Amazon listing matched as of 2026-11-03.
NEPO
NCG***-06CI/X1E, NCG***-06CI/X1E-W

6,200 BTU/h

No Amazon listing matched as of 2026-11-03.
NINGPU
NCG***-06CI/X1E, NCG***-06CI/X1E-W

6,200 BTU/h

No Amazon listing matched as of 2026-11-03.
R.W.FLAME
54091EWA0-6K-RW, 54091EWA0-6K-RWZ, NCG-06CI/X1E, NCG-06CI/X1E-W

6,200 BTU/h

No Amazon listing matched as of 2026-11-03.

The filings

DOE lists 18 individual model numbers under basic model NCG-06CI/X1E-W, filed under 8 brand names. Every filing lists the same figures: 6,200 BTU/h, CEER 15.1 and 460 W.

Each brand's DOE filing under basic model NCG-06CI/X1E-W, DOE data as of 2026-11-03. Identical columns are the evidence.
Brand	Model numbers	BTU/h	CEER	Watts	Listing
KISSAIR	54091EWA0-6K-KA, 54091EWA0-6K-KAZ, NCG-06CI/X1E, NCG-06CI/X1E-W, 54091EWA0-6K-KS, 54091EWA0-6K-KSZ	6,200	15.1	460	None matched
ZAFRO	54091EWA0-6K-ZA, 54091EWA0-6K-ZAZ, NCG-06CI/X1E, NCG-06CI/X1E-W	6,200	15.1	460	Check price on Amazon
Antarctic Star	54091EWA0-6K-AS, 54091EWA0-6K-ASZ, NCG-06CI/X1E, NCG-06CI/X1E-W	6,200	15.1	460	None matched
COWSAR	54091EWA0-6K-CS, 54091EWA0-6K-CSZ, NCG-06CI/X1E, NCG-06CI/X1E-W	6,200	15.1	460	None matched
Electactic	54091EWA0-6K-EL, NCG-06CI/X1E, NCG-06CI/X3E-W	6,200	15.1	460	None matched
NEPO	NCG*-06CI/X1E, NCG*-06CI/X1E-W	6,200	15.1	460	None matched
NINGPU	NCG*-06CI/X1E, NCG*-06CI/X1E-W	6,200	15.1	460	None matched
R.W.FLAME	54091EWA0-6K-RW, 54091EWA0-6K-RWZ, NCG-06CI/X1E, NCG-06CI/X1E-W	6,200	15.1	460	None matched

How we know it's one unit

Every brand here filed its model numbers under the same DOE basic model, NCG-06CI/X1E-W. DOE's definition of a basic model (10 CFR 430.2) covers "all units of a given type of covered product (or class thereof) manufactured by one manufacturer" with "the same primary energy source" and nearly identical "electrical, physical, and functional (or hydraulic) characteristics that affect energy consumption, energy efficiency, water consumption, or water efficiency." So one set of DOE figures covers every name on the list. 7 of the brands file NCG-06CI/X1E-W itself as their model number, so the number alone doesn't say which of them builds it.

Brands may still differ in color, controls, accessories, warranty and support. Full record and every model number: KISSAIR NCG-06CI/X1E-W.

How much does the NCG-06CI/X1E-W cost to run?

DOE's record lists 460 W of electrical input while cooling. That's about 8¢ an hour, or $20.05 for 30 days at 8 hours a day.

At 18.16¢ per kWh, the US average residential price for August 2026 (EIA Electric Power Monthly, table 5.6.A). Worked out from the certified figures.

Among 45 window ACs, 6,000 to 7,999 BTU/h

Cooling (BTU/h)6,200

Higher than 25 of 45.

median 6,000

6,0007,900 BTU/h

Efficiency (CEER)15.1

Higher than 32 of 45. 11 others share 15.1.

median 13.7

13.715.5

Who makes the NCG-06CI/X1E-W, and is it the same under every brand?

Who makes the ZAFRO 54091EWA0-6K-ZA?: DOE's records don't say. The ZAFRO 54091EWA0-6K-ZA is filed under basic model NCG-06CI/X1E-W along with 7 other brands. 7 of them file that same number as their model, and DOE's database has no manufacturer field.
Is the ZAFRO 54091EWA0-6K-ZA the same as the KISSAIR 54091EWA0-6K-KA?: Yes, by DOE's records. Both are filed under basic model NCG-06CI/X1E-W and list the same certified figures: 6,200 BTU/h, CEER 15.1 and 460 W.
Which brand of NCG-06CI/X1E-W is cheapest to run?: They tie: every brand files 6,200 BTU/h, CEER 15.1 and 460 W, so each costs about 8¢ an hour to run while cooling.

Related units, shared brands

More: all units sold under several brands · all window ACs