What size room does the GE 18,000 BTU Window Air Conditioner w/Heat cool?

It is rated to cool a room up to 1,000 sq ft (18,000 BTU · 5.3 kW).

Do I need a professional to install the GE 18,000 BTU Window Air Conditioner w/Heat?

No. It is a window unit you can fit yourself, no professional needed. Usually no permit.

Window unit Heats too

18,000 BTU Window Air Conditioner w/Heat

A window air conditioner rated at 18,000 BTU for rooms up to 1,000 sq ft. It heats in winter too and self-installs in a window.

$799

Live price at Sylvane

Price checked Sep 24, 2026

Buy at Sylvane

Performance

Cooling capacity: 18,000 BTU · 5.3 kW
Heating capacity: Yes
Room coverage: up to 1,000 sq ft
Energy Star: Not published
CEER: Not published
Annual energy (cooling): Not published

Noise, size & features

Indoor noise: Not published
Outdoor noise: Not published
Indoor unit: 26.3 x 18.23 x 25.8 in

Installation & the rules that apply

This is a window unit. No EPA Section 608 technician is needed: the refrigerant circuit is factory-sealed and never opened. A plug-in window unit needs no permit, so the friction is with your building rather than the government. Many HOAs restrict window units on appearance grounds, though an HOA regulating how you mount one stands on much firmer ground than one banning cooling outright. Landlords can set conditions, and the falling hazard is taken seriously: New York City, for instance, requires window units to be supported by brackets or mounting rails, and many building insurers and HOAs now require a bracket regardless of city.

Installation

Plug and play

Refrigerant

GeneralRenters: get written landlord consent firstReviewed June 2026Often blocks install

Common questions about the GE 18,000 BTU Window Air Conditioner w/Heat

What size room does the GE 18,000 BTU Window Air Conditioner w/Heat cool?: It is rated to cool a room up to 1,000 sq ft (18,000 BTU · 5.3 kW).
Do I need a professional to install the GE 18,000 BTU Window Air Conditioner w/Heat?: No. It is a window unit you can fit yourself, no professional needed. Usually no permit.
Does the GE 18,000 BTU Window Air Conditioner w/Heat heat as well as cool?: Yes. It also heats.

Compare the GE 18,000 BTU Window Air Conditioner w/Heat head-to-head

vs LG 18,000 BTU Dual Inverter Smart Wi-Fi Window Air Conditioner

Is a window even the right type?

Compare windows against the other types on price, noise, efficiency and install.

Window vs portable Mini-split vs window

Buying guides for a window like this

The questions buyers ask, answered from live prices and real specs. See where a window like this fits.

Best window AC Best 18,000 BTU AC AC for a 700 sq ft room Best AC for renters

More window unit units

The Windmill AC 8K (08W2Wi)

Fits your 23.2 m²

8,000 BTU Windmill window AC rated CEER 15 and Energy Star certified, a design-focused, quiet unit for rooms up to 350 sq ft with app and voice control.