Window unitENERGY STAR Heats too

Friedrich

WallMaster Smart Inverter Through-the-Wall Air Conditioner with Heat Pump 15,200 BTU in

Name: Friedrich WallMaster Smart Inverter Through-the-Wall Air Conditioner with Heat Pump 15,200 BTU in
Brand: Friedrich

A window air conditioner rated at 15,200 BTU for rooms up to 600 sq ft. It heats in winter too and self-installs in a window.

No live retailer for this exact model right now.

Last listed at Abt Electronics for $1,699 on Sep 1, 2026, out of stock.

The closest window you can buy today:

Friedrich 15,500 BTU Kuhl Window Air Conditioner w/ Electric HeatCovers up to 700 sq ft In stock$1,699View

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Will it cool your room?

Room size (assumed)45 m² ≈ 484 sq ft

Fits a 45 m² room

This unit's cooling matches a 45 m² room. Set your room size to check the fit for your space.

Running costest.

~$155/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 renters and rooms where you cannot install a fixed unit.

Cooling

4.5 kW

Size

Noise

Install: Self-fit, no pro neededPermission: Usually no permit

Performance

Cooling capacity: 4.5 kW · 15,200 BTU
Heating capacity: Yes
Room coverage: up to 600 sq ft
Energy Star: Yes
CEER: 12.8
Annual energy (cooling): 838 kWh

Noise, size & features

Indoor noise: Not published
Outdoor noise: Not published
Indoor unit: Not published
Outdoor unit: None
Refrigerant: R-32
Wi-Fi / app: Not published
Outdoor unit needed: No

Installation & the rules that apply

This is a window unit. No F-gas installer needed (sealed unit), but the regulatory friction is about the window and facade, not refrigerant. European tilt-and-turn windows physically do not accommodate them, many cities restrict anything that alters the external appearance, heritage and historic-centre rules often prohibit a box hanging out of a facade, and a landlord or building association can refuse it on safety (falling) and appearance grounds. Common and lightly regulated in the US, often effectively banned or impractical in much of Europe.

Installation

Plug and play

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 Smart Inverter Through-the-Wall Air Conditioner with Heat Pump 15,200 BTU in

How much does the Friedrich WallMaster Smart Inverter Through-the-Wall Air Conditioner with Heat Pump 15,200 BTU in cost to run per year?: About $155 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 Smart Inverter Through-the-Wall Air Conditioner with Heat Pump 15,200 BTU in?: Its efficiency rating is CEER 12.8, and it is ENERGY STAR certified.
What size room does the Friedrich WallMaster Smart Inverter Through-the-Wall Air Conditioner with Heat Pump 15,200 BTU in cool?: It is rated to cool a room up to 600 sq ft (4.5 kW · 15,200 BTU).
Do I need a professional to install the Friedrich WallMaster Smart Inverter Through-the-Wall Air Conditioner with Heat Pump 15,200 BTU in?: No. It is a window unit you can fit yourself, no professional needed. Usually no permit.
Does the Friedrich WallMaster Smart Inverter Through-the-Wall Air Conditioner with Heat Pump 15,200 BTU in heat as well as cool?: Yes. It is a heat pump that also heats.

WallMaster Smart Inverter Through-the-Wall Air Conditioner with Heat Pump 15,200 BTU in

Performance

Noise, size & features

Installation & the rules that apply

Common questions about the Friedrich WallMaster Smart Inverter Through-the-Wall Air Conditioner with Heat Pump 15,200 BTU in

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