What is the best window air conditioner with heat (heater combo)?

On certified efficiency, the Midea MAH09B1AGR: 9,500 BTU at a CEER of 17.6, about $73 a year at typical U.S. use. If on a standard outlet matters more, the Gradient CCHP11 is the pick. Every ENERGY STAR certified window and through-the-wall unit with a heating mode, ranked by cooling efficiency (CEER).

How much does it cost to run?

A typical unit on this list (12,600 BTU, 14.4 CEER) draws about 875 watts and costs about $118 a year at 750 hours and the U.S. average electricity price. The calculator works it out for your state.

Do window air conditioners with heat need a 230 V outlet?

Not all of them: 13 of the 20 certified units that heat run on a standard 115 V outlet and 7 need 230 V. Cooling capacities range from 8,000 to 28,300 BTU.

Is a window air conditioner with a heater combo cheaper than a space heater?

A unit that heats as a heat pump moves heat in from outdoors, so it delivers more heat per kWh than an electric resistance heater, until it gets cold outside and its output falls. ENERGY STAR does not certify heating output for room units, so check the maker's heating capacity and its lowest outdoor temperature. Units that use an electric heating strip are not in this list.

Best window air conditioner with heat (heater combo)

These units run in reverse in cold weather, working as a small heat pump: they move outdoor heat inside instead of making it with a heating element, so they heat for far less than a space heater. They suit spring and fall and mild winters.

Best overall

Midea MAH09B1AGR

9,500 BTU · saddle · heats too

CEER: 17.6
Power draw: 540 W
Per year: $73

Highest CEER (17.6) of the units that also heat.

Specs, size and running cost

Best on a standard outlet

Gradient CCHP11

9,300 BTU · U-shaped · heats too

CEER: 16.8
Power draw: 554 W
Per year: $75

9,300 BTU and heat on an ordinary 115 V plug.

Specs, size and running cost

Best U-shaped

GREE GJH09BW-A6DRNL1B

9,300 BTU · U-shaped · heats too

CEER: 16.1
Power draw: 578 W
Per year: $78

Heats and cools while the window closes into the unit.

Specs, size and running cost

Models that qualify20 from 7 brands
Efficiency range12.0-17.6 CEER
Typical running cost$118/yr
U-shaped designs5 of 20
Support bracket included11 of 20

All 20, ranked

Every ENERGY STAR certified window and through-the-wall unit with a heating mode, ranked by cooling efficiency (CEER).

20 models, ranked by CEER (efficiency). Yearly cost at 750 hours and the U.S. average electricity price.

#						Features
1	Midea MAH09B1AGRalso sold as 6 other model numbers	9,500	17.6	$73	25"	Saddle, Heat
2	Gradient CCHP11	9,300	16.8	$75	25.3"	U-shaped, Heat
3	GREE GJH09BW-A6DRNL1B	9,300	16.1	$78	26"	U-shaped, Heat
4	Kühl+ KHVS12B33B	12,600	15.8	$108	25.9"	Saddle, Heat, 230 V
5	GREE GJH09BW-A6DRNL1Aalso sold as 1 other model number	9,300	15.1	$83	26"	U-shaped, Heat
6	Midea MAW08HV1KWT-Aalso sold as 1 other model number	8,000	15.1	$72	19.4"	Heat
7	Kühl+ KHVS10B11B	10,600	15.0	$96	25.9"	Saddle, Heat
8	Midea MAW08HV1CWT	8,000	14.5	$75	19.4"	Heat
9	Midea MWAUQB-08HRFN8-BCL0also sold as 1 other model number	8,000	14.5	$75	19.4"	U-shaped, Heat
10	Midea MAW12HV1KWT-Aalso sold as 2 other model numbers	12,000	14.4	$113	19.4"	Heat
11	Friedrich KHVS12B33A	12,600	14.4	$118	25.9"	Heat, 230 V
12	Kühl+ KHVL28B35B	28,300	14.2	$270	28"	Saddle, Heat, 230 V
13	Friedrich KHVS10B11A	10,200	14.0	$99	25.9"	Heat
14	Midea MAW12HV1CWTalso sold as 4 other model numbers	12,000	13.3	$122	19.4"	U-shaped, Heat
15	GE Appliances AWGP08W	8,000	13.2	$82	19"	Heat
16	GE Appliances AWGP12W	11,000	13.2	$113	19"	Heat
17	Wallmaster WHVT14B33B	14,300	12.8	$151	26.5"	Heat, 230 V
18	Friedrich KHVM24B34A	22,900	12.6	$246	25.9"	Heat, 230 V
19	Friedrich KHVL28B35A	28,200	12.6	$303	28"	Heat, 230 V
20	Friedrich WHVT14B33A	15,200	12.0	$171	26.5"	Heat, 230 V

Before you buy

Tips4

ENERGY STAR rates cooling only (CEER); there is no certified heating efficiency for room units, so compare the heating capacity the maker lists.
A heat-pump unit uses far less electricity for the same heat than a resistance heater, but its output drops as the outdoor temperature falls.
Some units without a heat pump add an electric heater strip instead. Those are not in this list and heat at the cost of a space heater.
Through-the-wall units with heat are common in apartments and hotel rooms and replace a baseboard heater.

Questions4

What is the best window air conditioner with heat (heater combo)?: On certified efficiency, the Midea MAH09B1AGR: 9,500 BTU at a CEER of 17.6, about $73 a year at typical U.S. use. If on a standard outlet matters more, the Gradient CCHP11 is the pick. Every ENERGY STAR certified window and through-the-wall unit with a heating mode, ranked by cooling efficiency (CEER).
How much does it cost to run?: A typical unit on this list (12,600 BTU, 14.4 CEER) draws about 875 watts and costs about $118 a year at 750 hours and the U.S. average electricity price. The calculator works it out for your state.
Do window air conditioners with heat need a 230 V outlet?: Not all of them: 13 of the 20 certified units that heat run on a standard 115 V outlet and 7 need 230 V. Cooling capacities range from 8,000 to 28,300 BTU.
Is a window air conditioner with a heater combo cheaper than a space heater?: A unit that heats as a heat pump moves heat in from outdoors, so it delivers more heat per kWh than an electric resistance heater, until it gets cold outside and its output falls. ENERGY STAR does not certify heating output for room units, so check the maker's heating capacity and its lowest outdoor temperature. Units that use an electric heating strip are not in this list.

Best window air conditioner with heat (heater combo)

Top picks

Midea MAH09B1AGR

Gradient CCHP11

GREE GJH09BW-A6DRNL1B

All 20, ranked

Before you buy

More window air conditioner guides