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12,000/11,600 BTU 230V Window Air Conditioner with 11,000 BTU Supplemental Heat Capability
Keystone - 12,000/11,600 BTU 230V Window Air Conditioner with 11,000 BTU Supplemental Heat Capability - White
Price range: $449.99
💎
Exceptional Value
Outperforms 76% of air_conditioners at a lower price than 53%.
Brand: Keystone
Category: Air Conditioner
A Keystone 12,000 BTU Window air conditioner for rooms up to 550 sq. ft. · 3 fan speeds · CEER 10.9.
PQS: 87 (computed 2026-03-14 07:05:00.920932+00:00)
GTIN-14: 00840148726765
Key specs
A human-friendly subset of specs (non-null)
Type
Window
BTU
12,000
Room size
550 sq. ft.
Fan speeds
3
Efficiency
CEER 10.9
Dimensions
14.65" H × 19" W × 18.98" D
Energy Star
No
Features
- Remote control
- Fan speeds: 3
- CEER 10.9
Installation notes
- Opening width: 19 inches
How this Air Conditioner compares vs. 198 air conditioners
Percentile rank for each spec — higher means this product outperforms more of its peers.
Spec Profile Radar
Visual snapshot — outer edge = 100th percentile (best in class)
Offers
| Retailer | SKU | Price | Stock | Offer | Last seen |
|---|---|---|---|---|---|
| Best Buy | 6585657 | 449.99 USD | In stock | View offer → | 2026-03-14 03:38:13.970440+00:00 |
Recent price history (50)
| Retailer | Price | Stock | Seen at |
|---|---|---|---|
| bestbuy | 449.99 USD | In stock | 2026-03-14 03:38:13.970440+00:00 |
| bestbuy | 449.99 USD | In stock | 2026-03-13 03:47:53.883332+00:00 |
| bestbuy | 449.99 USD | In stock | 2026-03-12 03:38:07.530019+00:00 |
| bestbuy | 449.99 USD | In stock | 2026-03-11 03:36:14.814041+00:00 |
| bestbuy | 449.99 USD | In stock | 2026-03-10 03:44:51.788431+00:00 |
| bestbuy | 449.99 USD | In stock | 2026-03-09 03:45:34.132255+00:00 |
| bestbuy | 449.99 USD | In stock | 2026-03-06 06:37:30.401096+00:00 |
| bestbuy | 449.99 USD | In stock | 2026-03-03 02:27:32.501867+00:00 |
| bestbuy | 449.99 USD | In stock | 2026-03-02 08:56:02.022826+00:00 |
Full specs
Show full spec table
| BTU | 12000 |
|---|---|
| Room size (sq. ft.) | 550 |
| Energy Star | No |
| Type | Window |
| Smart/WiFi | No |
| Fan speeds | 3 |
| CEER/EER | 10.9 |
| Dimensions | 14.65 x 19 x 18.98 in |
| Reconciled at | 2026-03-06 10:56:32.254648+00:00 |
Canonical JSON (expand)
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Debug data (expand)
| Raw title | Keystone - 12,000/11,600 BTU 230V Window Air Conditioner with 11,000 BTU Supplemental Heat Capability - White |
|---|---|
| Raw brand | Keystone |
| Raw category | Best Buy > Appliances > Heating, Cooling & Air Quality > Air Conditioners > Window Air Conditioners |
Canonical highlights (non-null)
| core.title | Keystone - 12,000/11,600 BTU 230V Window Air Conditioner with 11,000 BTU Supplemental Heat Capability - White |
|---|---|
| core.seo_title | Keystone KSTHW12B |
| brand | Keystone |
| model | KSTHW12B |
| gtin14 | 00840148726765 |
| images[0] | https://pisces.bbystatic.com/prescaled/500/500/image2/BestBuy_US/images/products/6585/6585657_sd.jpg |
| category | air_conditioner |
| physical.depth_in | 18.98 |
| physical.width_in | 19.0 |
| physical.height_in | 14.65 |
| physical.weight_kg | 32.5 |
| physical.dimensions_in | 14.65 x 19 x 18.98 in |
| warranty.labor | 1 Year |
| warranty.parts | 1 Year |
| appliance.btu | 12000 |
| appliance.ceer | 10.9 |
| appliance.type | Window |
| appliance.smart | False |
| appliance.finish | White |
| appliance.fan_speeds | 3 |
| appliance.energy_star | False |
| appliance.dimensions_hwd | 14.65 x 19 x 18.98 in |
| appliance.room_size_sqft | 550 |
| schema_version | 1 |
BestBuy raw specs (pretty)
Expand BestBuy raw JSON
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"feature": "Powerful Cooling and Heating Capacities\nStay comfortable year-round with our high-performance air conditioner featuring a cooling capacity of 12,000/11,600 BTUs and a supplemental heating capacity of 11,000 BTUs. Enjoy efficient cooling and reliable supplemental heating for optimal climate control, perfect for rooms up to 550 sq. ft."
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"feature": "Enhanced Supplemental Heating Capability\nCombat chilly outdoor temperatures above 23°F with our supplemental heat feature, providing an additional source of warmth alongside your main heating system. Keep cozy and comfortable even in the coldest conditions, making it an ideal addition to your home environment."
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"feature": "Quiet Operation & Precise Temperature Control\nRelax in peace with our quiet AC unit, offering noise levels of 61/58/55 dBA on high, medium, and low settings. Control your comfort effortlessly with electronic controls and an LED display, while the temperature-sensing LCD remote allows you to adjust from anywhere in the room, providing convenient and personalized climate control."
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"longDescription": "Keystone prioritizes your family's comfort, and our budget-friendly heat/cool 230V window air conditioner is designed to meet your needs. This versatile AC unit offers both efficient cooling and supplemental heat capability, serving as an additional heat source for outdoor temperatures above 23 degrees Fahrenheit. The heat mode is supplemental and cannot replace your primary heat source. Please note that this unit requires a special 230-volt/20-amp electrical outlet and will not operate with a standard 115V household electrical outlet. Enjoy ultimate cost savings with the energy saver mode, sleep mode, and programmable 24-hour timer. These features allow you to customize your heating and cooling preferences based on your schedule, lowering energy usage and costs. The Follow Me LCD remote control adds to the convenience of this unit, ensuring everyone can relax in comfort. Invest in our heat/cool 230V window air conditioner and enjoy year-round comfort for your family. With Keystone, your family's comfort starts here.",
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Newegg raw specs
No Newegg raw specs saved for this product yet.