Window Air Conditioners
A window air conditioner — the window AC unit most people picture — sits in a window opening and cools one room, rejecting heat outside through the back of the unit. It is the simplest way to cool a single room and installs without permanent changes; most fit a double-hung window, and casement and slider models are made for those windows. Size a window AC by room area, using more capacity for sunny rooms and kitchens — the BTU sizing guide linked here has the table. Also check the window width range, the voltage (larger units need 230 volts), the noise level, and whether you want heat or Wi-Fi control.
All Make Appliance lists 95 window air conditioners from 9 brands, including LG, Friedrich, Frigidaire and Element Appliance. 53 of them are in stock right now, and every listing below shows its current availability. Free NJ/NY-metro delivery on orders over $499.

10,000 Btu Dual Inverter Energy Star Window Air Conditioner | Cools Up To 450 Sq. Ft.
Model: LW1022IVSM
10,000 Btu Window Air Conditioner | Cools Up To 450 Sq. Ft.
Model: LW1024RD
12,000 Btu Smart Wi-fi Enabled Window Air Conditioner | Cools Up To 550 Sq. Ft.
Model: LW1217ERSM1
12,000 Btu Dual Inverter Smart Wi-fi Enabled Window Air Conditioner | Cools Up To 550 Sq. Ft.
Model: LW1224IVSM
12,000 Btu Window Air Conditioner | Cools Up To 550 Sq. Ft.
Model: LW1224RD
14,000 Btu Window Air Conditioner | Cools Up To 800 Sq. Ft.
Model: LW1424RD
14,000 Btu Dual Inverter Energy Star Window Air Conditioner | Cools Up To 700 Sq. Ft.
Model: LW1522IVSM
18,000 Btu Smart Wi-fi Enabled Window Air Conditioner | Cools Up To 1,000 Sq. Ft.
Model: LW1821ERSM
18,000 Btu Dual Inverter Smart Wi-fi Enabled Window Air Conditioner | Cools Up To 1,000 Sq. Ft.
Model: LW1822IVSM
23,500 Btu Dual Inverter Smart Wi-fi Enabled Window Air Conditioner | Cools Up To 1,450 Sq. Ft.
Model: LW2422IVSM
24,500 Btu Smart Wi-fi Enabled Window Air Conditioner | Cools Up To 1,550 Sq. Ft.
Model: LW2521ERSM
24,500 Btu Window Air Conditioner | Cools Up To 1,560 Sq. Ft.
Model: LW2524RD
5,000 Btu Window Air Conditioner | Cools Up To 150 Sq. Ft.
Model: LW5024
6,000 Btu Window Air Conditioner | Cools Up To 250 Sq. Ft.
Model: LW6024R
7,600 Btu Window Air Conditioner, Cooling & Heating | Up To 330 Sq. Ft.
Model: LW8023HR
8,000 Btu Smart Wi-fi Enabled Window Air Conditioner | Cools Up To 350 Sq. Ft.
Model: LW8024RSM
23,000 BTU (17,300) Window A/C, Heat/Cool, Wifi enabled
Model: KEL24A35B
12,000 BTU (10,700) Window A/C, Heat/Cool, Wifi enabled
Model: KES12A33A
6,000 BTU Window Room Air Conditioner
Model: FHWC063TC1
10,000 BTU Window Room Air Conditioner
Model: FHWC103TC1
12,000 BTU Window Room Air Conditioner
Model: FHWC123TC1
8,000 BTU Window Room Air Conditioner with Wi-Fi
Model: FHWW084TE1
10,000 BTU Inverter Window Room Air Conditioner with Wi-Fi (Energy Star)
Model: FHWW105WE1