Frigidaire FHTW123WA1 Review: 12,000 BTU 115V Wall AC
A 115V cooling-only wall unit rated 12,000 BTU for rooms up to 550 sq ft, with a remote-mounted thermostat, 3.3 pints per hour of dehumidification and a 57 dB listing.
By Daniel Brooks
Updated October 22, 2026
The Frigidaire FHTW123WA1 is a different design from Frigidaire’s newer FHTC wall units. It is a 12,000 BTU cooling-only through-the-wall air conditioner for rooms up to 550 square feet that runs on a standard 115 volt outlet, and its two standout features are a thermostat built into the remote and strong moisture removal of up to 3.3 pints per hour. It has a 4.0 out of 5 average from 12 ratings in our cooling-only through-the-wall air conditioners category.
Our Verdict
The FHTW123WA1 is a capable living room or large bedroom unit for homes with only a standard outlet at the sleeve. The remote-mounted thermostat holds the temperature where you sit rather than at the wall, the dehumidifying figure is one of the highest we have seen on a 12,000 BTU wall unit, and Frigidaire lists 57 dB with an EER figure of 10.5. Sleep mode, a 24 hour timer, three fan speeds, directional airflow and a washable filter with an alert round it out.
There is no air ionizer, unlike Frigidaire’s FHTC models, and no Wi-Fi or heat. It is also one of the pricier 115 volt wall units, so compare it with the FHTC123WB1 and rival 12,000 BTU units before you buy.
Frigidaire 12,000 BTU Through-the-wall Air
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Key Specifications
| Feature | Specification |
|---|---|
| Brand | Frigidaire |
| Model | FHTW123WA1 |
| Type | Cooling-only through-the-wall air conditioner |
| Cooling Capacity | 12,000 BTU |
| Room Size | Up to 550 sq ft |
| Power | 115 volts, 1140 watts |
| Efficiency | 10.5 (listed) |
| Noise Level | 57 dB (listed) |
| Dehumidifying | Up to 3.3 pints per hour |
| Thermostat | Built into the remote |
| Dimensions | 24 x 14.5 x 19 inches (W x H x D) |
| Weight | 75 pounds |
| In the Box | Air conditioner, remote, batteries, manual |
| Warranty | 1 year limited |
Cooling Capacity and Room Size
Frigidaire designs the FHTW123WA1 for rooms up to 550 square feet and suggests it for apartments, offices and other medium-sized spaces. That is the top of the 12,000 BTU band in the ENERGY STAR chart below. A medium living room, a large primary bedroom, a studio or an office with equipment is a good match.
ENERGY STAR publishes this general guide for sizing a room air conditioner by floor area:
| Room Size (sq ft) | Cooling Capacity (BTU/hr) |
|---|---|
| 100 to 150 | 5,000 |
| 150 to 250 | 6,000 |
| 250 to 300 | 7,000 |
| 300 to 350 | 8,000 |
| 350 to 400 | 9,000 |
| 400 to 450 | 10,000 |
| 450 to 550 | 12,000 |
| 550 to 700 | 14,000 |
| 700 to 1,000 | 18,000 |
Adjust for your room: reduce capacity by 10 percent for a heavily shaded room, increase it by 10 percent for a very sunny room, add 600 BTU for each regular occupant beyond two, and add 4,000 BTU if the unit cools a kitchen. Source: ENERGY STAR.
Thermostat in the Remote
Frigidaire places the thermostat in the remote, which then maintains the preset temperature where the remote sits. This is the same idea as Keystone’s follow me remote, and it fixes a common wall unit problem: the unit’s own sensor sits beside a warm outside wall and can read several degrees off from the middle of the room. Keep the remote near the sofa or bed rather than in a drawer, and the room cools to the conditions you feel.
Dehumidifying
The FHTW123WA1 removes excess moisture of up to 3.3 pints per hour, a high figure for a wall unit. That makes it a good choice for humid climates, ground-floor apartments and rooms that feel damp even when the temperature is moderate. Drier air feels cooler, so you may be able to set the thermostat a little higher and still stay comfortable.
Power and Efficiency
The unit runs on a standard 115 volt outlet and draws 1140 watts. Frigidaire’s listing gives an efficiency figure of 10.5, which is solid for a conventional 12,000 BTU wall unit. Keep it on a circuit without other heavy appliances where you can.
Noise
Frigidaire lists 57 dB, a reasonable figure for a 12,000 BTU unit. It is comfortable in a living room and workable in a large bedroom. Sleep mode gradually raises the temperature a few degrees over the evening, which reduces how often the compressor runs overnight and keeps the room quieter.
Timer and Controls
The programmable 24 hour timer can switch the unit on and off in half hour increments, so you can match cooling closely to your schedule. Digital temperature controls, three fan speeds and directional airflow are on the unit and the remote. An easy-to-clean washable dust filter has a clean filter alert, which helps the unit keep running efficiently through the season.
Installation
The chassis measures 24 inches wide, 14.5 inches tall and 19 inches deep, and weighs 75 pounds. The box includes the unit, a remote, batteries and the manual, but no sleeve. Confirm compatibility with your existing sleeve, especially the depth, using Frigidaire’s installation guide before ordering. Two people should lift it into the sleeve.
Living With It
In daily use, the combination of a remote thermostat and strong dehumidifying makes the room feel evenly comfortable rather than cold near the unit and stuffy across the room. A practical routine is to set the timer to start cooling half an hour before you get home, leave the remote on the coffee table, and switch to sleep mode at bedtime. On mild, humid days, run the lowest fan speed so the unit spends more time removing moisture.
FHTW123WA1 vs FHTC123WB1
Frigidaire sells two 12,000 BTU wall units on a standard outlet. The FHTC123WB1 adds an air ionizer. The FHTW123WA1 instead offers a thermostat in the remote and a clearly listed 3.3 pints per hour of moisture removal, with a slightly lower listed sound level. If temperature accuracy and humidity control matter most, choose the FHTW123WA1. If cleaner air matters more, choose the FHTC.
Who It Suits Best
The FHTW123WA1 suits living rooms, large bedrooms and studios up to 550 square feet with a standard outlet, particularly in humid homes or rooms with uneven temperatures. It is less suited to smart home users, buyers on a tight budget, or rooms that need heat.
Pros and Cons
| Pros | Cons |
|---|---|
| Thermostat built into the remote | No air ionizer |
| Up to 3.3 pints per hour dehumidifying | No Wi-Fi or app |
| 12,000 BTU on a standard outlet | Pricier than rivals |
| 57 dB listed sound level | Sleeve not included |
| Half hour timer increments | No heat mode |
Who Should Buy It
| Who Should Buy It? | Who Should Look Elsewhere? |
|---|---|
| Humid homes | Smart home users |
| Rooms with uneven temperatures | Tight budgets |
| Living rooms up to 550 sq ft | Rooms that need heat |
| Homes with only standard outlets | Buyers who want an ionizer |
For more choices, see our picks for the best 12,000 BTU through-the-wall air conditioners and the best 115V through-the-wall air conditioners.
Final Verdict
The Frigidaire FHTW123WA1 stands out for its remote-mounted thermostat and strong moisture removal, two features that make a real difference in a medium living room. It is a dependable 12,000 BTU wall unit on a normal outlet if the price works for you. You can check the current price and details for the Frigidaire 12,000 BTU Through-the-wall Air Conditioner.
Frequently Asked Questions
What size room does the Frigidaire FHTW123WA1 cool?
Frigidaire designs it for rooms up to 550 square feet.
How much moisture does it remove?
Up to 3.3 pints per hour.
Does it have a thermostat in the remote?
Yes. The remote’s thermostat maintains the preset temperature where the remote sits.
Does it need a special outlet?
No. It runs on a standard 115 volt outlet and draws 1140 watts.
About the author
Daniel Brooks is a home cooling editor at WikiCooling, covering window, portable, through-the-wall and mini-split air conditioners, fans, and dehumidifiers. He researches cooling capacity, energy efficiency, noise levels, installation requirements, and buyer feedback to help homeowners choose the right unit for their room size, climate, and budget.