How energy-efficient is the Friedrich Wallmaster 15,400 BTU Through-the-Wall Air Conditioner?

Its efficiency rating is CEER 12.6, and it is ENERGY STAR certified.

Do I need a professional to install the Friedrich Wallmaster 15,400 BTU Through-the-Wall Air Conditioner?

Not to replace a unit, but usually yes for a new opening. Sliding it into an existing wall sleeve it fits is a job you can do yourself (it is heavy, so plan on two people), with no refrigerant work. A new installation means cutting an opening through an exterior wall and fitting a sleeve, which is contractor work and usually needs a building permit.

Through-the-wall unitENERGY STAR

Friedrich · Model WCVT16B30A

Wallmaster 15,400 BTU Through-the-Wall Air Conditioner

Name: Friedrich Wallmaster 15,400 BTU Through-the-Wall Air Conditioner
Brand: Friedrich

A through-the-wall air conditioner rated at 15,400 BTU for rooms up to 700 sq ft. It installs in a wall sleeve.

$1,489

No live retailer for this exact model right now.

Last listed at Abt Electronics for $1,449 on Aug 4, 2026. We have not been able to confirm it since.

The closest through-the-wall unit you can buy today:

Friedrich Uni-Fit 14,000 BTU 9.4 EER 230 V Smart Through-The-Wall Air Conditioner in White14,000 BTU In stock$999View

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Will it cool your room?

Room size (assumed)700 sq ft ≈ 65 m²

Fits a 65 m² room

This unit's cooling matches a 700 sq ft room. Set your room size to check the fit for your space.

Running costest.

~$185/year

Estimated from ENERGY STAR's published annual energy use at about 750 hours of cooling a year (the DOE test standard) and the US average electricity price of 18.44¢/kWh (U.S. Energy Information Administration, Electric Power Monthly Table 5.6.A (residential average, May 2026)). A standardized figure for comparison; your real cost depends on how much you run it, your local rate and your climate.

Local rates vary widely (about 15¢/kWh in Florida to 33¢ in California), and hotter regions run their AC more hours, so your real cost differs.

At a glance

Best for replacing a through-the-wall unit in an existing wall sleeve.

Cooling

4.5 kW

Size

Large

Noise

Install: Slides into a wall sleevePermission: A new wall opening usually needs a permit

Performance

Cooling capacity: 15,400 BTU · 4.5 kW
Heating capacity: Cooling only
Room coverage: up to 700 sq ft
Energy Star: Yes
CEER: 12.6
Annual energy (cooling): 1000 kWh

Noise, size & features

Model number: WCVT16B30A
Indoor noise: Not published
Outdoor noise: Not published
Indoor unit: 27.5 x 17.25 x 23.25 in
Outdoor unit: None
Refrigerant: R-32
Wi-Fi / app: Not published
Outdoor unit needed: No
Wall sleeve: Fits 27 in. sleeves

Will it fit your wall sleeve?

Made for existing 27-inch sleeves, including Fedders A sleeves and, with Friedrich's baffle kit, the deeper Fedders B; it mounts flush with the outside wall. A new installation needs Friedrich's WSE or WSEZ sleeve (27 x 16¾ x 16¾ in.), sold separately. Source: Friedrich WallMaster product page

Every through-the-wall AC and PTAC by the sleeve it fits

Installation & the rules that apply

This is a through-the-wall air conditioner. It sits in a sleeve built into an exterior wall, so the window-unit mounting and bracket rules do not apply to it. Swapping it into an existing sleeve is a like-for-like replacement; cutting a new opening changes the building's exterior wall, which usually needs a building permit and, in a condo, co-op or historic building, approval first.

Installation

Slides into a wall sleeve

Refrigerant

R-32

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

GeneralCondo / HOA: exterior changes need approvalReviewed June 2026Permit required

GeneralHistoric / listed buildings: consent before any exterior unitReviewed June 2026Permit required

MassachusettsMassachusetts: local historic district approval (MGL c.40C)Reviewed June 2026Permit required

United StatesUS: local mechanical and electrical permits (vary by city)Reviewed June 2026Permit required

See full rules by region

Common questions about the Friedrich Wallmaster 15,400 BTU Through-the-Wall Air Conditioner

How much does the Friedrich Wallmaster 15,400 BTU Through-the-Wall Air Conditioner cost to run per year?: About $185 a year. Estimated from ENERGY STAR's published annual energy use at about 750 hours of cooling a year (the DOE test standard) and the US average electricity price of 18.44¢/kWh (U.S. Energy Information Administration, Electric Power Monthly Table 5.6.A (residential average, May 2026)). A standardized figure for comparison; your real cost depends on how much you run it, your local rate and your climate.
How energy-efficient is the Friedrich Wallmaster 15,400 BTU Through-the-Wall Air Conditioner?: Its efficiency rating is CEER 12.6, and it is ENERGY STAR certified.
What size room does the Friedrich Wallmaster 15,400 BTU Through-the-Wall Air Conditioner cool?: It is rated to cool a room up to 700 sq ft (15,400 BTU · 4.5 kW).
Do I need a professional to install the Friedrich Wallmaster 15,400 BTU Through-the-Wall Air Conditioner?: Not to replace a unit, but usually yes for a new opening. Sliding it into an existing wall sleeve it fits is a job you can do yourself (it is heavy, so plan on two people), with no refrigerant work. A new installation means cutting an opening through an exterior wall and fitting a sleeve, which is contractor work and usually needs a building permit.