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Best 18000 btu window unit Deals in the United States

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Deals are available from 3 stores and 5 brands. An additional discount is available for 6 items. Last updated on September 24, 2025.
Amana Energy Star Window-Mounted Air Conditioner With Remote, 18,000 Btu, 17 15/16"h X 25 7/16"w X 23 5/8"d, White
Amana Energy Star Window-Mounted Air Conditioner With Remote, 18,000 Btu, 17 15/16"h X 25 7/16"w X 23 5/8"d, White
Amana Energy Star Window-Mounted Air Conditioner With Remote, 18,000 Btu, 17 15/16"h X 25 7/16"w X 23 5/8"d, White
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Window Air Conditioner With Remote & WiFi, Smart Cooling For Rooms Window Air Conditioner With Remote & WiFi, Smart Cooling For Rooms
50% Off
Window Air Conditioner With Remote & WiFi, Smart Cooling For Rooms Window Air Conditioner With Remote & WiFi, Smart Cooling For Rooms
Window Air Conditioner With Remote & WiFi, Smart Cooling For Rooms Window Air Conditioner With Remote & WiFi, Smart Cooling For Rooms
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$1,199.94
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Daikin Oterra Single Zone Wall-Mount Air Handler with Heat Pump FTXF18AXVJU - Indoor Unit - 21 SEER2, 18,000 BTU, 208 / 230V
Daikin Oterra Single Zone Wall-Mount Air Handler with Heat Pump FTXF18AXVJU - Indoor Unit - 21 SEER2, 18,000 BTU, 208 / 230V
Daikin Oterra Single Zone Wall-Mount Air Handler with Heat Pump FTXF18AXVJU - Indoor Unit - 21 SEER2, 18,000 BTU, 208 / 230V
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Daikin Oterra Single Zone Wall-Mount Air Handler (Cooling Only) RKF18AXVJU - Outdoor Unit - 21 SEER2, 18,000 BTU, 208 / 230V
Daikin Oterra Single Zone Wall-Mount Air Handler (Cooling Only) RKF18AXVJU - Outdoor Unit - 21 SEER2, 18,000 BTU, 208 / 230V
Daikin Oterra Single Zone Wall-Mount Air Handler (Cooling Only) RKF18AXVJU - Outdoor Unit - 21 SEER2, 18,000 BTU, 208 / 230V
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Daikin Entra Single Zone Wall-Mount Air Handler with Heat Pump FTXC18AXVJU - Indoor Unit - 18 SEER2, 18,000 BTU, 208 / 230V
Daikin Entra Single Zone Wall-Mount Air Handler with Heat Pump FTXC18AXVJU - Indoor Unit - 18 SEER2, 18,000 BTU, 208 / 230V
Daikin Entra Single Zone Wall-Mount Air Handler with Heat Pump FTXC18AXVJU - Indoor Unit - 18 SEER2, 18,000 BTU, 208 / 230V
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10000 12000 BTU Window Air Conditioner With Handy Remote, LED Control Panel, Energy Saver, Dehumidifier, Quiet AC Unit 10000 12000 BTU Window Air Conditioner With Handy Remote, LED Control Panel, Energy Saver, Dehumidifier, Quiet AC Unit
50% Off
10000 12000 BTU Window Air Conditioner With Handy Remote, LED Control Panel, Energy Saver, Dehumidifier, Quiet AC Unit 10000 12000 BTU Window Air Conditioner With Handy Remote, LED Control Panel, Energy Saver, Dehumidifier, Quiet AC Unit
10000 12000 BTU Window Air Conditioner With Handy Remote, LED Control Panel, Energy Saver, Dehumidifier, Quiet AC Unit 10000 12000 BTU Window Air Conditioner With Handy Remote, LED Control Panel, Energy Saver, Dehumidifier, Quiet AC Unit
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$1,159.94
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Air Conditioner Cleaning Cover Kit Waterproof Dust Protection Set 9000 18000 Btu 7pcs
50% Off
Air Conditioner Cleaning Cover Kit Waterproof Dust Protection Set 9000 18000 Btu 7pcs
Air Conditioner Cleaning Cover Kit Waterproof Dust Protection Set 9000 18000 Btu 7pcs
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$289.94
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Daikin Oterra Single Zone Wall-Mount Air Handler (Cooling Only) FTKF18AXVJU - Indoor Unit - 21 SEER2, 18,000 BTU, 208 / 230V
Daikin Oterra Single Zone Wall-Mount Air Handler (Cooling Only) FTKF18AXVJU - Indoor Unit - 21 SEER2, 18,000 BTU, 208 / 230V
Daikin Oterra Single Zone Wall-Mount Air Handler (Cooling Only) FTKF18AXVJU - Indoor Unit - 21 SEER2, 18,000 BTU, 208 / 230V
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Daikin Oterra Single Zone Wall-Mount Air Handler with Heat Pump RXF18AXVJU - Outdoor Unit - 21 SEER2, 18,000 BTU, 208 / 230V
Daikin Oterra Single Zone Wall-Mount Air Handler with Heat Pump RXF18AXVJU - Outdoor Unit - 21 SEER2, 18,000 BTU, 208 / 230V
Daikin Oterra Single Zone Wall-Mount Air Handler with Heat Pump RXF18AXVJU - Outdoor Unit - 21 SEER2, 18,000 BTU, 208 / 230V
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Mr. Heater Big Buddy Outdoor Only Portable Liquid Propane Radiant Heater F274806 - 4,000 / 9,000 / 18,000 BTU
Mr. Heater Big Buddy Outdoor Only Portable Liquid Propane Radiant Heater F274806 - 4,000 / 9,000 / 18,000 BTU
Mr. Heater Big Buddy Outdoor Only Portable Liquid Propane Radiant Heater F274806 - 4,000 / 9,000 / 18,000 BTU
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Goodman 1.5 Ton Single Stage Split System Heat Pump GLZS4BA1810 - 15.2 SEER2, 18,000 BTU
Goodman 1.5 Ton Single Stage Split System Heat Pump GLZS4BA1810 - 15.2 SEER2, 18,000 BTU
Goodman 1.5 Ton Single Stage Split System Heat Pump GLZS4BA1810 - 15.2 SEER2, 18,000 BTU
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Goodman 1.5 Ton Single-Stage PSC Split System Air Conditioner (Cooling Only) GLXS4BA1810 - 14.3 SEER2, 18,000 BTU, 208/240V
Goodman 1.5 Ton Single-Stage PSC Split System Air Conditioner (Cooling Only) GLXS4BA1810 - 14.3 SEER2, 18,000 BTU, 208/240V
Goodman 1.5 Ton Single-Stage PSC Split System Air Conditioner (Cooling Only) GLXS4BA1810 - 14.3 SEER2, 18,000 BTU, 208/240V
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Air Conditioner Cleaning Cover Kit Waterproof Dust Protection Set 9000 18000 Btu 5pcs
50% Off
Air Conditioner Cleaning Cover Kit Waterproof Dust Protection Set 9000 18000 Btu 5pcs
Air Conditioner Cleaning Cover Kit Waterproof Dust Protection Set 9000 18000 Btu 5pcs
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$289.94
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Air Conditioner Cleaning Cover Kit Waterproof Dust Protection Set 9000 18000 Btu 10pc
50% Off
Air Conditioner Cleaning Cover Kit Waterproof Dust Protection Set 9000 18000 Btu 10pc
Air Conditioner Cleaning Cover Kit Waterproof Dust Protection Set 9000 18000 Btu 10pc
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$289.94
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Air Conditioner Cleaning Cover Kit Waterproof Dust Protection Set 9000 18000 Btu 11pc
50% Off
Air Conditioner Cleaning Cover Kit Waterproof Dust Protection Set 9000 18000 Btu 11pc
Air Conditioner Cleaning Cover Kit Waterproof Dust Protection Set 9000 18000 Btu 11pc
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$289.94
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