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8,000 BTU 115V Window Air Conditioner with 3,500 BTU Supplemental Heat Capability
Keystone - 8,000 BTU 115V Window Air Conditioner with 3,500 BTU Supplemental Heat Capability - White
Price range: $429.99
Brand: Keystone
Category: Air Conditioner
A Keystone 8,000 BTU Window air conditioner for rooms up to 350 sq. ft. · 3 fan speeds · CEER 10.9.
PQS: 87 (computed 2026-03-14 07:05:00.920932+00:00)
GTIN-14: 00840148726758
Key specs
A human-friendly subset of specs (non-null)
Type
Window
BTU
8,000
Room size
350 sq. ft.
Fan speeds
3
Efficiency
CEER 10.9
Dimensions
14.65" H × 21.46" W × 18.98" D
Energy Star
No
Features
- Remote control
- Fan speeds: 3
- CEER 10.9
Installation notes
- Opening width: 21.46 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 | 6585664 | 429.99 USD | In stock | View offer → | 2026-03-14 03:38:13.970440+00:00 |
Recent price history (50)
| Retailer | Price | Stock | Seen at |
|---|---|---|---|
| bestbuy | 429.99 USD | In stock | 2026-03-14 03:38:13.970440+00:00 |
| bestbuy | 429.99 USD | In stock | 2026-03-13 03:47:53.883332+00:00 |
| bestbuy | 429.99 USD | In stock | 2026-03-12 03:38:07.530019+00:00 |
| bestbuy | 429.99 USD | In stock | 2026-03-11 03:36:14.814041+00:00 |
| bestbuy | 429.99 USD | In stock | 2026-03-10 03:44:51.788431+00:00 |
| bestbuy | 429.99 USD | In stock | 2026-03-09 03:45:34.132255+00:00 |
| bestbuy | 429.99 USD | In stock | 2026-03-06 06:37:30.401096+00:00 |
| bestbuy | 429.99 USD | In stock | 2026-03-03 02:27:32.501867+00:00 |
| bestbuy | 429.99 USD | In stock | 2026-03-02 08:56:02.022826+00:00 |
Full specs
Show full spec table
| BTU | 8000 |
|---|---|
| Room size (sq. ft.) | 350 |
| Energy Star | No |
| Type | Window |
| Smart/WiFi | No |
| Fan speeds | 3 |
| CEER/EER | 10.9 |
| Dimensions | 14.65 x 21.46 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 - 8,000 BTU 115V Window Air Conditioner with 3,500 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 - 8,000 BTU 115V Window Air Conditioner with 3,500 BTU Supplemental Heat Capability - White |
|---|---|
| core.seo_title | Keystone KSTHW08B |
| brand | Keystone |
| model | KSTHW08B |
| gtin14 | 00840148726758 |
| images[0] | https://pisces.bbystatic.com/prescaled/500/500/image2/BestBuy_US/images/products/e0f61be5-3b05-4f3b-941d-f5d8ae2ebb94.jpg |
| category | air_conditioner |
| physical.depth_in | 18.98 |
| physical.width_in | 21.46 |
| physical.height_in | 14.65 |
| physical.weight_kg | 27.5 |
| physical.dimensions_in | 14.65 x 21.46 x 18.98 in |
| warranty.labor | 1 Year |
| warranty.parts | 1 Year |
| appliance.btu | 8000 |
| 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 21.46 x 18.98 in |
| appliance.room_size_sqft | 350 |
| schema_version | 1 |
BestBuy raw specs (pretty)
Expand BestBuy raw JSON
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"features": [
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"feature": "Dual Functionality\nExperience optimal comfort with our Heat/Cool air conditioner. It offers a cooling capacity of 8,000 BTUs and a supplemental heating capacity of 3,500 BTUs, ensuring year-round temperature control."
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"feature": "Enhanced Heat\nStay cozy with our supplemental heat capability that provides an extra heat source when outdoor temperatures rise above 23°F. Please note that our heating mode is designed as a supplementary heat source, not intended as the primary source of heat."
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"feature": "Perfect for Medium-Sized Rooms\nDesigned for rooms up to 350 sq. ft., this air conditioner offers efficient cooling, dehumidification up to 1.9 pints per hour, and a quiet operation. Enjoy optimal comfort in your home, even during hot summer days."
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Newegg raw specs
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