LG
11,200 BTU Through-the-wall Air Conditioner Heat/Cool - LT1233HNR
A window air conditioner rated at 11,200 BTU for rooms up to 500 sq ft. It heats in winter too and self-installs in a window.
$749
Live price at SylvanePrice checked Sep 24, 2026
Performance
- Cooling capacity
- 11,200 BTU · 3.3 kW
- Heating capacity
- Yes
- Room coverage
- up to 500 sq ft
- Energy Star
- Not published
- CEER
- Not published
- Annual energy (cooling)
- Not published
Noise, size & features
- Indoor noise
- 59 dB(A)about as loud as a dishwasher
- Outdoor noise
- Not published
- Indoor unit
- 24 x 14.4 x 20.1 in
What to watch
- At 59 dB(A) it is louder than 110 of the 119 other window units we list that publish a noise figure.
- At $749 it costs more than 29 of the 34 other 10,000-11,000 BTU window units we list with a live price.
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.
Plug and play
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Common questions about the LG 11,200 BTU Through-the-wall Air Conditioner Heat/Cool - LT1233HNR
- How loud is the LG 11,200 BTU Through-the-wall Air Conditioner Heat/Cool - LT1233HNR?
- 59 dB(A) indoors, about as loud as a dishwasher.
- What size room does the LG 11,200 BTU Through-the-wall Air Conditioner Heat/Cool - LT1233HNR cool?
- It is rated to cool a room up to 500 sq ft (11,200 BTU · 3.3 kW).
- Do I need a professional to install the LG 11,200 BTU Through-the-wall Air Conditioner Heat/Cool - LT1233HNR?
- No. It is a window unit you can fit yourself, no professional needed. Usually no permit.
- Does the LG 11,200 BTU Through-the-wall Air Conditioner Heat/Cool - LT1233HNR heat as well as cool?
- Yes. It also heats.
Is a window even the right type?
Compare windows against the other types on price, noise, efficiency and install.
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