Gree: 3 DOE certified models

Gree has 3 window AC basic models certified to DOE as of 2026-11-03, rated 8,300 to 9,300 BTU/h. One is the same unit as models filed under other brands. How their efficiency compares with their DOE class is below.

Highest certified cooling capacity among its window ACs: Gree GJH09BW-A6DRNL1A and Gree GJH09BW-A6DRNL1B tie at 9,300 BTU/h.

Source: DOE Compliance Certification Database (window ACs), data as of 2026-11-03.

Window and room air conditioners

3 Gree window ACs. DOE data as of 2026-11-03.
#	Model	Labels	Cooling, BTU/h	Covers	CEER	Watts	Type	Heat pump	Brands
1	GreeGJH09BW-A6DRNL1A	CEER 15.1 Window Heat pump Sold under 2 brands	9,300BTU/h, up to 400 sq ft	400 sq ft	15.1	830	Window	Yes	2
2	GreeGJH09BW-A6DRNL1B	CEER 16.1 Window Heat pump	9,300BTU/h, up to 400 sq ft	400 sq ft	16.1	780	Window	Yes	1
3	GreeGJC08BU-A6DRNJ2A	CEER 16 Window	8,300BTU/h, up to 350 sq ft	350 sq ft	16	710	Window	No	1

How efficient are Gree window ACs?

Of the 3 Gree window ACs, 1 files a higher CEER than the class median and 2 match it.

Gree window ACs against the median CEER (Btu/Wh) of their DOE class. DOE data as of 2026-11-03.
DOE class	Gree models	Above median	Class median	Best Gree
Window ACs with heat pump, less than 20,000 BTU/h (19)	2	1	CEER 15.1	GJH09BW-A6DRNL1B CEER 16.1
Window ACs, 8,000 to 13,999 BTU/h (105)	1	0	CEER 16	GJC08BU-A6DRNJ2A CEER 16

A higher CEER means more cooling per watt.

Who makes Gree window ACs?

DOE's database has no manufacturer field, so the evidence is whose model number each unit is filed under and which other brands file the same unit.

One unit is filed under Gree's own model number and sold by other brands too, so Gree is the filer of record for it.

Gree shares one unit with one other brand, KINGHOME. Its other 2 basic models are filed by Gree alone.

Gree units filed under one DOE basic model with other brands. DOE data as of 2026-11-03.
Basic model	Gree model	Number belongs to	Brands
GJH09BW-A6DRNL1A	GJH09BW-A6DRNL1A	Gree	2

How much does a Gree window AC cost to run?

While cooling, Gree window ACs draw about 710 to 830 W (DOE's listed power input). That's 13¢ to 15¢ an hour, or $30.94 to $36.17 for 30 days at 8 hours a day. The lowest is Gree GJC08BU-A6DRNJ2A (8,300 BTU/h, CEER 16) and the highest Gree GJH09BW-A6DRNL1A (9,300 BTU/h, CEER 15.1).

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.

Questions about Gree

Is Gree a good window AC brand?: How its 3 window ACs compare on efficiency with their DOE class is above. One of them is the same unit as another brand's model. We don't test reliability, noise or build quality, so we can't rank brands on those. How we compare models.
How big a room will a Gree window AC cool?: Its models certify 8,300 to 9,300 BTU/h, which ENERGY STAR's sizing chart puts at 350 to 400 sq ft.
Which Gree window AC is the most efficient for its size?: Gree GJH09BW-A6DRNL1B, at CEER 16.1: higher than 10 of the 19 in its DOE class (window ACs with heat pump, less than 20,000 BTU/h). At the other end is Gree GJC08BU-A6DRNJ2A, at CEER 16, tied with 101 others for the lowest of the 105 in its class.
Is Gree the same as KINGHOME?: For one unit, yes: both file it under the same DOE basic model (GJH09BW-A6DRNL1A). The other 2 Gree basic models aren't filed by KINGHOME. Compare the 2 brands of GJH09BW-A6DRNL1A.