Prices, ratings and stock were checked on Amazon on October 22, 2026. Specs from the older page are marked as such and were not retested. Several old model numbers no longer match Amazon listings.
A wall air conditioner gives you your window back. Here are six that are in stock, what to check before you buy and which ones need a 230V circuit.
Table of Contents
Why Pick a Wall Unit?
A wall unit gives you your window back, seals better than a window unit and sits where the air flows well. It costs more than a window unit and needs a sleeve in the wall. If you rent, a window unit is easier. If you own and the sleeve is there, a wall unit is a clear step up. For the basics, read what a through-the-wall air conditioner is.
The Three Checks Before You Buy
- Voltage: 115V plugs into a normal outlet. 208/230V needs its own circuit.
- Sleeve: measure the opening. Units are about 24 inches wide and 14.5 inches high.
- Heat: pick cool-only or heat-and-cool. Wall heat is supplemental in most units.
Sizing the Room
Ten thousand BTU is a 400 to 450 square foot job. Twelve thousand covers 450 to 550. Fourteen thousand reaches 600 to 700. Add a size for sun or a kitchen. The BTU calculator gives a better answer.
Here is where wall units are heading: more heat, more smart kits and more brands, with the old names thinning out. The Friedrich Uni-Fit sells as a cool-only 230V unit for $889.99. Newer brands sell heat-and-cool units for $479 to $570. The market is splitting between premium and cheap, and the middle is going away.
6 Through-the-Wall ACs Worth a Look
Rechecked on Amazon on October 22, 2026. Prices, ratings and buttons are below.
Price on Amazon: $599.99 | 4.0 stars from 75 ratings (checked October 22, 2026)
The Frigidaire 12,000 BTU 115V plugs into a normal outlet. The listing says it cools up to 550 square feet and has an ionizer, a remote, a 24-hour timer and a washable filter. It costs $599.99, with a 4.0 rating from 75 ratings.
Price on Amazon: $499.00 | 3.9 stars from 591 ratings (checked October 22, 2026)
The LG 10,000 BTU runs on a standard outlet. The listing shows coverage up to 440 square feet, three cooling and fan speeds and a remote. It costs $499.00, with a 3.9 rating from 591 ratings.
Price on Amazon: $627.99 | 4.2 stars from 504 ratings (checked October 22, 2026)
The Koldfront WTC12001W is a 208/230V heat and cool unit. It costs $627.99, with a 4.2 rating from 504 ratings, which is a strong pile for a wall unit.
Price on Amazon: $985.30 | 4.1 stars from 80 ratings (checked October 22, 2026)
The Emerson Quiet Kool 14,000 BTU is a 230V 4-in-1: air conditioner, heater, dehumidifier and fan, for rooms up to 700 square feet. It costs $985.30, with a 4.1 rating from 80 ratings.
Price on Amazon: $689.95 | 3.7 stars from 212 ratings (checked October 22, 2026)
The LG 14,000 BTU runs on 230/208V and cools up to 700 square feet. It costs $689.95, with a 3.7 rating from 212 ratings.
Price on Amazon: $889.99 | 4.3 stars from 3 ratings (checked October 22, 2026)
The Friedrich Uni-Fit 12,000 BTU is a cool-only unit on 230/208V. It costs $889.99, with a 4.3 rating from only 3 ratings, so the crowd is tiny.
The downside is the plug and the sleeve. Half of the wall units on the market need 230 volts, and a sleeve is often sold separately. Expect more owners who add up the box, then the circuit, then the sleeve, and find they paid twice. The other risk is thin review counts on the cheapest units. A 4.4 rating from 20 ratings is not proof.
115V Units: the Easy Path
If the wall has no 230V line, pick a 115V unit and skip the electrician. The Frigidaire 12,000 BTU and the LG 10,000 BTU both run on a standard outlet. Read the Frigidaire wall AC review and the LG LT1016CER review for details.
230V Units: More Power, More Prep
The Koldfront, Emerson, LG 14,000 and Friedrich all need 208/230 volts. That gives more cooling, but the circuit costs money. Compare them in the Koldfront WTC12001W review and the Emerson Quiet Kool review.
Running Cost
A 12,000 BTU wall unit draws roughly 1,000 to 1,300 watts. At 15 cents a kilowatt hour, that is about 15 to 20 cents an hour, or about $35 to $48 for a month of eight-hour days. A clean filter keeps the cost down.
How to Pick
Normal outlet and a mid-size room? The Frigidaire 115V. Trusted name and a normal outlet? The LG 10,000 BTU. Heat and cool with a big review pile? The Koldfront. Quiet at 14,000 BTU? The Emerson. Cheaper big room? The LG 14,000. Premium cool-only? The Friedrich.
FAQ
Do all wall air conditioners need a sleeve?
Yes. A metal sleeve in the wall holds the unit, and some listings sell it separately.
Which wall AC runs on a normal outlet?
The Frigidaire 12,000 BTU 115V and the LG 10,000 BTU in this list.
Do wall air conditioners heat?
Some do, but the heat is usually supplemental.
How much room does 12,000 BTU cool?
About 450 to 550 square feet in a shaded room.
Final Word
Check the volts, the sleeve and the room size first. Then pick a unit from the list.
What comes next: inverter wall units, heat pump versions and smarter apps. If you already have a sleeve, buy a unit that fits it. That is the simplest way to avoid carpentry.
Related Guides
Keep going with what a through-the-wall air conditioner is, Frigidaire wall AC review, Koldfront WTC12001W review, Emerson Quiet Kool review and LG LT1016CER review.
