Windmill Air Windmill 12,000 BTU Inverter Wi-Fi Enabled Window Air Conditioner
Window unit

Windmill Air · Model 12W2Wi

Windmill 12,000 BTU Inverter Wi-Fi Enabled Window Air Conditioner

A window air conditioner rated at 12,000 BTU. It self-installs in a window and connects to Wi-Fi for app control.

$599.99

Live price at Sylvane

Price checked Oct 6, 2026

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Will it cool your room?

Room size 500 sq ft ≈ 46.5 m²
Fits your 46.5 m²approx

This unit's cooling matches your 500 sq ft room, on an estimate from its cooling power.

Compare similar units

At a glance

Best for renters and rooms where you cannot install a fixed unit.

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
Not published
Energy Star
Not published
CEER
Not published
Annual energy (cooling)
Not published

Noise, size & features

Model number
12W2Wi
Indoor noise
42 dB(A)about as loud as a quiet library
Outdoor noise
Not published
Indoor unit
19.3 x 13.3 x 22.5 in
Outdoor unit
None
Refrigerant
R-32
Wi-Fi / app
Yes
Outdoor unit needed
No
Power supply
115 V, NEMA 5-15P plug
Warranty
1-Year Limited Warranty

Supply voltage, plug, refrigerant and warranty are from Sylvane's published specifications for this exact configuration, checked Oct 2, 2026.

What is good

  • At 42 dB(A) it is quieter than 67 of the 81 other window units we list that publish a noise figure.
  • Uses R-32 (GWP 675), the low-GWP class new US residential equipment moved to.

What to watch

  • At $600 it costs more than 25 of the 31 other 12,000-14,000 BTU window units we list with a live price.

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

Self-fit, no pro needed

Refrigerant

R-32

United StatesUS: local mechanical and electrical permits (vary by city)Reviewed June 2026Permit required
United StatesUS: historic district Certificate of AppropriatenessReviewed June 2026Permit required
United StatesUS: HOA / condo CC&Rs and architectural reviewReviewed June 2026Permit required
United StatesUS: NEC Article 440 dedicated circuit and disconnectReviewed June 2026Allowed with conditions
United StatesUS: window-unit restrictions and bracket/safety rulesReviewed June 2026Allowed with conditions
See all United States rules

Common questions about the Windmill Air Windmill 12,000 BTU Inverter Wi-Fi Enabled Window Air Conditioner

How loud is the Windmill Air Windmill 12,000 BTU Inverter Wi-Fi Enabled Window Air Conditioner?
42 dB(A) indoors, about as loud as a quiet library.
Do I need a professional to install the Windmill Air Windmill 12,000 BTU Inverter Wi-Fi Enabled Window Air Conditioner?
No. It is a window unit you can fit yourself, no professional needed. Usually no permit.

Compare the Windmill Air Windmill 12,000 BTU Inverter Wi-Fi Enabled Window Air Conditioner head-to-head

Is a window even the right type?

Compare windows against the other types on price, noise, efficiency and install.

Buying guides for a window unit like this

The questions buyers ask, answered from live prices and real specs. See where a window unit like this fits.