Window

LG LW1223HR Heat/Cool

3.8(18 retailer ratings) by LG · Model LW1223HR

One of the few window units that also heats — 12,200 BTU of cooling and 11,200 BTU of electric heat for shoulder-season rooms without central HVAC.

Cooling

12,200 BTU

Covers

570 ft²

Efficiency

11.6CEER

Noise

54 dB

$499 est.

typical street price · via Amazon

Check Price

Is 12,200 BTU right for your room? Run the sizing calculator

Strengths & trade-offs

Pros

True 4-in-1: cool, heat, dehumidify, fan
570 sq ft coverage at CEER 11.6
Slide-in-out chassis eases install and service

Cons

Needs a dedicated 208/230V circuit — not a standard outlet
Electric-resistance heat costs far more to run than a heat pump
Thin owner-review record so far

What the LG LW1223HR Heat/Cool costs to run

Estimated from this unit's 11.6CEER rating at 8 hours/day of cooling, using average residential electricity rates for each US climate zone. Your usage and utility rate will shift these numbers — run the calculator for your exact room.

Climate zone	Example regions	Est. cost / month
Cool North	Pacific NW, Upper Midwest, New England	$40 /mo
Mixed / Temperate	Mid-Atlantic, Midwest, Mountain	$43 /mo
Hot & Humid	Southeast, Gulf Coast, Texas	$35 /mo
Hot & Dry	Southwest, Desert	$38 /mo

Full specifications

Type	Window air conditioner
Cooling capacity	12,200 BTU
Rated coverage	570 ft²
Efficiency	11.6 CEER
Noise (low)	54 dB
Smart features	None
ENERGY STAR	No
Model number	LW1223HR
Typical street price	$499