WhirlpoolWHAW121INV

Window AC · DOE basic model KC-35/YXRDBp(E1/6)(082304)

DOE certified cooling

12,000BTU/hDOE test

Window · CEER 16 · 1,110 W

Cools rooms up to 550 sq ft

DOE data as of 2026-11-03DOE record

Does it fit your room? ENERGY STAR sizing chart

Whirlpool WHAW121INV: certified to DOE at 12,000 BTU/h cooling, CEER 16, 1,110 W, window unit. DOE data as of 2026-11-03.

Every model number on this record

Filed with DOE under basic model KC-35/YXRDBp(E1/6)(082304). A listing with any of these numbers is this unit.

Every model number filed under basic model KC-35/YXRDBp(E1/6)(082304), DOE data as of 2026-11-03
Model numberFiled by
KC-35/YXRDBp(E1/6)(082304) (DOE basic model)–
WHAW121INVWhirlpool

How much does the Whirlpool WHAW121INV cost to run?

About 20¢ an hour of cooling, or $48.38 for 30 days at 8 hours a day (less once the compressor cycles off).

DOE's record lists 1,110 W of electrical input while cooling. Electricity at 18.16¢/kWh, the US residential average for August 2026 (EIA Electric Power Monthly, table 5.6.A). Each 1¢/kWh you pay above or below 18.16¢ moves the 8 hour figure by 9¢.

How does the Whirlpool WHAW121INV rank in its DOE class?

Its DOE class (window ACs, 8,000 to 13,999 BTU/h) has 105 models certified to DOE. Its CEER of 16 is tied for 4th of the 105, and level with their median of 16.

Window ACs for 550 sq ft (2 with a listing)

Among 105 window ACs, 8,000 to 13,999 BTU/h

Cooling (BTU/h)12,000

At the class maximum, with 34 others.

8,00012,000 BTU/h

Efficiency (CEER)16

At the class minimum, with 101 others.

1617.6

Two to compare with

From models with a matched listing.

  • Within 1,000 BTU/h of its size, highest CEER

    TCL T12WV4S12,000 BTU/h

    Up to 550 sq ft, window, CEER 16.

  • Nearest bigger unit

    TCL T14WV9S14,000 BTU/h

    Up to 700 sq ft, window, CEER 16.

DOE record

Cooling

Cooling capacity
12,000 BTU/h
Efficiency (CEER)
16 Btu/Wh
Power input
1,110 W

Build

Mount
Window
Heat pump
No

Record

DOE basic model
KC-35/YXRDBp(E1/6)(082304)
DOE class
(3) Without reverse cycle, with louvered sides, and 8,000 to 13,999 Btu/h
Brands on the filings
1
In DOE's list since
2026-11-02first snapshot we hold
UPC (ENERGY STAR record)
810225752451
ENERGY STAR record
WHAW121INVcertified 2026-09-30

Questions

How big a room does it cool?
About 550 sq ft. ENERGY STAR's sizing chart calls for 12,000 BTU/h in rooms up to 550 sq ft. A sunny room, a kitchen or a high ceiling needs more.
How much does the Whirlpool WHAW121INV cost to run for 8 hours?
About $1.61 for 8 hours of cooling: roughly 1,110 W at 18.16¢/kWh, the US residential average for August 2026 (EIA).