How loud is the Midea U MAW12U2QWT (U+ saddle, inverter)?

42 dB(A) indoors, about as loud as a quiet library.

How energy-efficient is the Midea U MAW12U2QWT (U+ saddle, inverter)?

Its efficiency rating is CEER 15.2, and it is ENERGY STAR certified.

What size room does the Midea U MAW12U2QWT (U+ saddle, inverter) cool?

It is rated to cool a room up to 550 sq ft (12,000 BTU · 3.5 kW).

Do I need a professional to install the Midea U MAW12U2QWT (U+ saddle, inverter)?

No. It is a window unit you can fit yourself, no professional needed. Usually no permit.

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Window unitENERGY STAR

Midea

U MAW12U2QWT (U+ saddle, inverter)

Name: Midea U MAW12U2QWT (U+ saddle, inverter)
Brand: Midea

12,000 BTU Midea U+ saddle inverter window AC rated CEER 15.2 and Energy Star Most Efficient, the larger redesigned current generation not covered by the 2025 recall.

Price varies

List price

Current U+ generation (available late 2024). Typical street price about $430 to $500; exact MAP price not publicly displayed.

No live retailer for this exact model right now.

The closest window you can buy today:

Will it cool your room?

Room size (assumed)550 sq ft ≈ 51.1 m²

Fits a 51.1 m² room

This unit's cooling matches a 550 sq ft room. Set your room size to check the fit for your space.

Running costest.

~$110/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 larger rooms that still need the quiet open-window u-shape.

Cooling

3.5 kW

Size

Average

Noise

42 dB

Moderate

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

Performance

Cooling capacity: 12,000 BTU · 3.5 kW
Heating capacity: Cooling only
Room coverage: up to 550 sq ft
Energy Star: Yes
CEER: 15.2
Annual energy (cooling): 592 kWh

Noise, size & features

Model number: MAW12U2QWT
Indoor noise: 42 dB(A)about as loud as a quiet library
Outdoor noise: Not published
Indoor unit: 13.5 x 19.2 x 22.0 in (HxWxD)
Outdoor unit: None
Refrigerant: R-32
Wi-Fi / app: Yes
Outdoor unit needed: No

What is good

CEER 15.2, Energy Star Most Efficient, larger 12,000 BTU capacity
Redesigned U+ generation, not part of the 2025 recall
Saddle design keeps the window usable
Quiet inverter, WiFi with Alexa and Google

What to watch

No public list price at major retailers
Heavier and bulkier 12K saddle unit to install
Confirm the U2 SKU versus older recalled U units when buying

Installation & the rules that apply

This is a window unit. No EPA Section 608 technician is needed: the refrigerant circuit is factory-sealed and never opened. A plug-in window unit needs no permit, so the friction is with your building rather than the government. Many HOAs restrict window units on appearance grounds, though an HOA regulating how you mount one stands on much firmer ground than one banning cooling outright. Landlords can set conditions, and the falling hazard is taken seriously: New York City, for instance, requires window units to be supported by brackets or mounting rails, and many building insurers and HOAs now require a bracket regardless of city.

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 Midea U MAW12U2QWT (U+ saddle, inverter)

How much does the Midea U MAW12U2QWT (U+ saddle, inverter) cost to run per year?: About $110 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 loud is the Midea U MAW12U2QWT (U+ saddle, inverter)?: 42 dB(A) indoors, about as loud as a quiet library.
How energy-efficient is the Midea U MAW12U2QWT (U+ saddle, inverter)?: Its efficiency rating is CEER 15.2, and it is ENERGY STAR certified.
What size room does the Midea U MAW12U2QWT (U+ saddle, inverter) cool?: It is rated to cool a room up to 550 sq ft (12,000 BTU · 3.5 kW).
Do I need a professional to install the Midea U MAW12U2QWT (U+ saddle, inverter)?: No. It is a window unit you can fit yourself, no professional needed. Usually no permit.