Element ETTW10E Review: 10,000 BTU 115V Through-the-Wall AC
A new 115V cooling-only wall unit rated 10,000 BTU for rooms up to 450 sq ft, with Eco mode, a 24 hour timer, a 45 dB listed sound level and a 2 year warranty.
By Daniel Brooks
Updated October 22, 2026
The Element ETTW10E is a new entrant in the 10,000 BTU wall unit class. Element rates it for rooms up to 450 square feet on a standard 115 volt outlet, gives it Cool, Fan, Dry and Eco modes, and backs it with a 2 year warranty. Its headline number is a listed 45 dB, the lowest we have seen for a full-size wall unit in our cooling-only through-the-wall air conditioners category. It has no ratings on Amazon yet.
Our Verdict
On paper, the ETTW10E is an attractive bedroom and office unit. It covers a typical primary bedroom or small living room, uses R-32 refrigerant, includes a remote, LED electronic controls, a 24 hour programmable timer and a washable filter, and the 2 year warranty is longer than many rivals offer. Element also says it can replace an existing through-the-wall unit or go into a new installation, which makes it a flexible option for renters and owners alike.
The caution is that everything is unproven. With no owner ratings, there is no real-world check on the 45 dB figure, the efficiency claims or reliability. Parts of the spec sheet also appear to mix in details from other product types. It is worth a look for early adopters, but buyers who want a track record should start with LG or Whirlpool.
Element 10,000 BTU Through-the-Wall Air
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Key Specifications
| Feature | Specification |
|---|---|
| Brand | Element |
| Model | ETTW10E |
| Type | Cooling-only through-the-wall air conditioner |
| Cooling Capacity | 10,000 BTU |
| Room Size | Up to 450 sq ft |
| Power | 115 volts, 1200 watts |
| Refrigerant | R-32 |
| Noise Level | 45 dB (listed) |
| Modes | Cool, Fan, Dry, Eco |
| Controls | LED electronic controls, remote, 24 hour timer |
| Dimensions | 24.2 x 14.5 x 20.3 inches (W x H x D) |
| Weight | 60 pounds |
| In the Box | Air conditioner unit |
| Warranty | 2 year limited manufacturer |
Cooling Capacity and Room Size
Element rates the ETTW10E for rooms up to 450 square feet and suggests it for bedrooms, apartments, offices, living rooms and other small to medium spaces. That matches the top of the 10,000 BTU band in the ENERGY STAR chart below. A primary bedroom, a home office or a compact living room is the right fit.
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.
Noise
Element lists 45 dB and describes the unit as quiet. That is markedly lower than the figures most conventional 10,000 BTU wall units list, and if it holds up, it would make the ETTW10E one of the best bedroom wall units available. Until owners report back, though, treat the number as a manufacturer claim.
Modes and Controls
Four modes cover the essentials. Cool handles hot days, Fan circulates air without cooling, Dry pulls moisture out on muggy days, and Eco mode is designed to save energy. Multiple fan speeds and an adjustable thermostat let you tune comfort, and the LED electronic controls and included remote handle temperature, fan speed, timer and modes. The 24 hour programmable timer lets you start or stop cooling on a schedule. There is no app or voice control.
Power and Efficiency
The unit runs on a standard 115 volt outlet and draws 1200 watts, a little more than some 10,000 BTU rivals list. Element describes the unit as energy efficient, and the spec sheet lists Energy Star certification and an inverter, but the feature list does not mention an inverter compressor, and some spec lines refer to an outdoor condenser, which a through-the-wall unit does not use. We would wait for clearer documentation before relying on those claims.
Installation
The chassis measures 24.2 inches wide, 14.5 inches tall and 20.3 inches deep, a common size for wall units, and it weighs 60 pounds, lighter than most 10,000 BTU rivals. Element says it suits both replacements and new installations. The box contains the air conditioner unit only, so plan for a sleeve, and confirm the compatible sleeve size with Element before ordering. A loose or mismatched sleeve is the most common cause of drafts and rattles with any wall unit.
Filter and Maintenance
A washable, reusable air filter captures dust for cleaner airflow. Rinse it every couple of weeks in peak season, and let it dry fully before sliding it back in. Outside, keep the rear grille clear of debris so the unit can reject heat efficiently.
How It Compares
Against established 10,000 BTU wall units on a standard outlet, the ETTW10E’s advantages are its listed sound level, its light weight and its warranty. Whirlpool’s 10,000 BTU wall unit also carries a 2 year warranty, has a published sleeve range and a track record of owner ratings, while LG’s comparable wall unit has hundreds of ratings and a published EER. TCL adds app and voice control. If you want the safest choice, those models are better documented today. If you are willing to try a newer brand for a potentially quieter bedroom, the Element is the one to watch.
The 2 Year Warranty
A 2 year limited manufacturer warranty is a welcome safety net on a new model with no track record. Keep your receipt and model number, and confirm how Element handles warranty service before you buy, since a wall unit is awkward to remove and ship.
Who It Suits Best
The ETTW10E suits early adopters who want a potentially very quiet 10,000 BTU wall unit for a bedroom or office on a standard outlet, and who value a 2 year warranty. It is less suited to buyers who want proven reliability, smart home users, or anyone who needs heat.
Pros and Cons
| Pros | Cons |
|---|---|
| 45 dB listed sound level | No ratings yet |
| 2 year limited warranty | Sleeve size not listed |
| Cool, Fan, Dry and Eco modes | Some spec lines look inconsistent |
| Lighter than most rivals at 60 pounds | No Wi-Fi or app |
| Standard 115V outlet | No heat mode |
Who Should Buy It
| Who Should Buy It? | Who Should Look Elsewhere? |
|---|---|
| Early adopters | Buyers who want a track record |
| Bedrooms and offices up to 450 sq ft | Smart home users |
| Buyers who value a longer warranty | Rooms that need heat |
| Homes with only standard outlets | Anyone unsure of sleeve fit |
For more options, see our picks for the best 10,000 BTU through-the-wall air conditioners and the best 115V through-the-wall air conditioners.
Final Verdict
The Element ETTW10E has a promising spec sheet for a bedroom wall unit: a very low listed sound level, four useful modes, a standard plug and a 2 year warranty. Until owner feedback confirms those numbers, it is a pick for early adopters. You can check the current price and details for the Element 10,000 BTU Through-the-Wall Air Conditioner.
Frequently Asked Questions
How loud is the Element ETTW10E?
Element lists 45 dB.
What size room does it cool?
Element rates it for rooms up to 450 square feet.
Does it include a wall sleeve?
No. The box contains the air conditioner unit.
What warranty does it have?
The listing gives a 2 year limited manufacturer warranty.
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.