GREE GJH09BW-A6DRNL1A

• CEER (class median 15.0)15.1, no ties
• Yearly cost vs. class median ($90)$7 less
• Width 26" (class median 19.8")narrower than 4%
• Weight 116 lb (class median 58 lb)lighter than 7%
• Rank among 3 similar designs that heat#3

Compared with the other ENERGY STAR certified 10,000 BTU window units. Yearly cost at 750 hours and 18.0¢/kWh.

These model numbers have the same capacity, efficiency, energy use, dimensions and weight as the GREE GJH09BW-A6DRNL1A: the same unit under another brand, or with a colour or retailer code. Everything on this page applies to them.

• Kinghome KHWA09IN

How many square feet does the GREE GJH09BW-A6DRNL1A cool?

At 9,300 BTU/h it suits a room of about 300 to 400 sq ft with normal sun and two people, following the ENERGY STAR sizing guide. In a heavily shaded room that stretches to about 330-440 sq ft; in a very sunny one it shrinks to 270-360 sq ft. A kitchen needs 4,000 BTU more.

How many watts and amps does the GREE GJH09BW-A6DRNL1A use?

About 616 watts at full power (9,300 BTU/h divided by its CEER of 15.1), which is 5.4 amps at 115 V. That is 51 W less than the typical unit in its class (667 W), or $7 a year cheaper to run at 18.0¢/kWh. Its inverter compressor slows down instead of cycling, so real use is usually lower. Its CEER beats 57% of the 28 units in the class.

Can the GREE GJH09BW-A6DRNL1A run on a standard outlet?

Yes. It runs on 115 V and draws about 5.4 A, well inside a standard 15 A outlet, but do not share the circuit with a space heater, microwave or other big load. Every certified unit in this class is 115 V.

What are the dimensions of the GREE GJH09BW-A6DRNL1A, and will it fit my window?

26" W × 15.3" H × 27.5" D, 116 lb. It is narrower than 4% of its 27 competitors and lighter than 7% of them. The window closes into the U-shaped slot, so measure the opening height as well as the width: you need at least the unit's 26" width between the frame sides.

Is the GREE GJH09BW-A6DRNL1A U-shaped design an advantage?

Mostly yes. The sash closes into the unit, so the window stays sealed and daylight comes in, and the compressor is outside the glass, which cuts noise indoors. The trade-off is a window that must slide up and down, and a few extra steps to fit the foam seals.

How does the GREE GJH09BW-A6DRNL1A heat?

It reverses its refrigerant cycle to work as a heat pump, which makes it one of only 6 certified units in its class that heat. Heating output is not part of the ENERGY STAR data, so ask the maker for its heating capacity and lowest outdoor temperature before relying on it in winter.

Is the GREE GJH09BW-A6DRNL1A worth buying to replace an old air conditioner?

An old unit of the same size at 9 CEER would cost about $140 a year to run at 750 hours and 18.0¢/kWh; this one costs about $83, so it saves roughly $56 a year.

Is the GREE GJH09BW-A6DRNL1A the same as the Kinghome KHWA09IN?

As far as the certified data goes, yes. ENERGY STAR lists both model numbers with the same capacity, efficiency, energy use, dimensions and weight, which means the same unit sold under another brand or with a different colour or retailer code. The full list is on this page.