Kenmore KKUF21-W Convertible Upright Freezer 21 Cu Ft
- Capacity: 21 cu ft
- Number Of Shelves: 4
- Door Orientation: Right
- Installation Type: Freestanding
Last refreshed Jun 11, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
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ASIN: B0CTFH22XXModel: KKUF21-WCategory: Upright Freezers
Overview
The Kenmore KKUF21-W is a 21 cubic foot upright unit that converts between refrigerator and freezer modes, with 4 repositionable shelves, auto defrost and a digital control panel for garage or basement storage.
Its main selling point is flexibility. A single dial switches the whole cabinet between fridge and freezer temperatures, so it can double as overflow drink storage in summer and bulk meat storage in winter.
- 21 cu ft convertible refrigerator or freezer
- 4 repositionable shelves and door bins
- Auto defrost with door open and high temp alarms
- EnergyStar certified, 2 year warranty
Who it's for
Suits households wanting one large capacity unit for a garage, basement or dorm that can shift between chilling drinks and freezing bulk food.
Pros and cons
- 21 cu ft capacity for bulk food or drinks
- Switches between fridge and freezer mode
- Auto defrost with door and temperature alarms
- Large footprint may not suit small garages
- At least one unit arrived with a dent and cracked shelf
Performance notes
A digital panel with LED display controls temperature and the fridge or freezer mode switch, backed by a quick freeze setting and auto defrost so the interior does not need manual defrosting. Door open and high temperature alarms are built in, and the unit is EnergyStar certified.
Specifications
| Brand | Koolatron |
|---|---|
| Model | KKUF21-W |
| Dimensions & fit | |
| Door Orientation | Right |
| Item Weight | 180 poundshigher than 76% of 30 upright freezers |
| Item Dimensions D x W x H | 30.8 × 33.1 × 74.6 inches |
| Capacity & performance | |
| Capacity | 21 cu fthigher than 96% of 29 upright freezers |
| Power & efficiency | |
| Voltage | 115 volts |
| Construction & materials | |
| Number Of Shelves | 4 |
| Door Material Type | Painted Metal |
| Color | Snowy White |
| Compatibility & installation | |
| Installation Type | Freestanding |
| Included components | |
| Unit Count | 1 |
| Warranty & support | |
| Warranty Description | 2 years |
| Other details | |
| Specification Met | DOE |
| Item Type Name | Upright Freezer |
Closest rivals on specs
Whynter UDF-139SS Convertible Upright Deep Freezer 13.8 Cu Ft- Capacity 21 vs 13.8 cu ft (+52%)
- Item Weight 180 vs 149 pounds (+21%)
KoolMore KM-RUF-21S Convertible Upright Freezer 21 Cu Ft- Item Weight 180 vs 225 pounds (-20%)
KoolMore Reserve KM-PRC-F18 Panel Ready Freezer Column 18 Inch- Capacity 21 vs 8.6 cu ft (+144%)
- Item Weight 180 vs 210 pounds (-14%)
Frequently asked questions
Can the Kenmore KKUF21-W switch between a fridge and a freezer?
Yes, a digital control panel lets you switch the entire cabinet between refrigeration and freezing modes, with a quick freeze setting for faster cooling.
Does the KKUF21-W need manual defrosting?
No, it has an auto defrost function that keeps the interior frost free without manual work.
How much can the KKUF21-W hold?
It offers 21 cubic feet, about 600 liters, of storage, rated to hold up to roughly 735 pounds of food.