Keystone · Model KSTAP10PINV
12,000 BTU Inverter Portable Air Conditioner w/Remote
A portable air conditioner rated at 12,000 BTU (10,000 BTU SACC) for rooms up to 450 sq ft. It needs no installation.
$579.99
Live price at SylvanePrice checked Oct 27, 2026
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Will it cool your room?
This has more cooling than your 250 sq ft room needs. It can short-cycle and leave the air cool but humid.
The portable units we list are not ENERGY STAR certified, and portables are rated on a different (SACC) basis that is not comparable to the nameplate-BTU estimate the window figure uses, so there is no honest dollar figure to show here. As a category, portables (single-hose models especially) usually run less efficiently than a comparable window unit.
At a glance
Best for renters and rooms where you cannot install a fixed unit.
Performance
- Cooling capacity
- 12,000 BTU · 10,000 BTU SACC
- Power while cooling
- 1,200 W (11.8 A at 115 V), about $0.22 an hour
- Heating capacity
- Cooling only
- Room coverage
- up to 450 sq ft
- Energy Star
- Not published
- CEER
- 14.7
- Annual energy (cooling)
- Not published
Noise, size & features
- Model number
- KSTAP10PINV
- Indoor noise
- 53 dB(A)about as loud as a dishwasher
- Outdoor noise
- Not published
- Indoor unit
- 19.5 x 32.5 x 16.7 in
- Outdoor unit
- None
- Refrigerant
- R-32
- Wi-Fi / app
- Not published
- Outdoor unit needed
- No
- Power supply
- 115 V, NEMA 5-15P plug
- Warranty
- 1-Year Parts and Labor Limited Warranty
Supply voltage, plug, cooling power, cooling current, refrigerant and warranty are from Sylvane's published specifications for this exact configuration, checked Oct 18, 2026.
Power while cooling: From the maximum cooling draw its retailer lists for this exact model. An hour's cost is at that draw 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)). The compressor cycles once the room is cool, so most hours cost less.
What is good
- Its CEER 14.7 is more efficient than 21 of the 23 other portables we list with a published CEER.
- Uses R-32 (GWP 675), the low-GWP class new US residential equipment moved to.
Installation & the rules that apply
This is a portable monobloc. The most regulation-light option by far. No EPA Section 608 certified technician is needed because the refrigerant circuit is factory-sealed and never opened, no building or mechanical permit is triggered since nothing is fixed to the structure, and a landlord has little ground to refuse a unit that leaves no permanent alteration. The real constraints are your lease or HOA rules on how the window kit looks from outside, and noise to neighbours.
Plug and play
R-32
Common questions about the Keystone 12,000 BTU Inverter Portable Air Conditioner w/Remote
- How loud is the Keystone 12,000 BTU Inverter Portable Air Conditioner w/Remote?
- 53 dB(A) indoors, about as loud as a dishwasher.
- How energy-efficient is the Keystone 12,000 BTU Inverter Portable Air Conditioner w/Remote?
- Its efficiency rating is CEER 14.7.
- How many watts does the Keystone 12,000 BTU Inverter Portable Air Conditioner w/Remote use?
- It draws 1,200 watts (11.8 amps at 115 V) while cooling at full power, per its retailer's specification for this exact model. At the US average electricity price that is about $0.22 an hour; once the room is cool the compressor cycles, so most hours cost less.
- What size room does the Keystone 12,000 BTU Inverter Portable Air Conditioner w/Remote cool?
- It is rated to cool a room up to 450 sq ft, which matches its SACC: ENERGY STAR's sizing chart gives the 10,000 BTU (SACC) the Department of Energy certifies it at a room up to 450 sq ft. Its box says 12,000 BTU.
- Do I need a professional to install the Keystone 12,000 BTU Inverter Portable Air Conditioner w/Remote?
- No. It is a portable monobloc you can fit yourself, no professional needed. No permission needed.
Compare the Keystone 12,000 BTU Inverter Portable Air Conditioner w/Remote head-to-head
Is a portable even the right type?
Compare portables against the other types on price, noise, efficiency and install.
Buying guides for a portable monobloc like this
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