Sub-Zero DEU1550I
#22 in 15 in wideFull review
For a Sub-Zero kitchen or outdoor bar that wants big clear cubes and matching panels, with a floor drain in place. Buyers without a drain should get the DEU1550IP.
Sub-Zero $5,430$5,430
The Sub-Zero DEU1550I is the better undercounter ice maker overall, rated 3.1 to 3.1. The Sub-Zero DEU1550I leads on output. The Sub-Zero UC-15I costs $1,720 less ($3,710 vs $5,430).
Sub-Zero UC-15I
#24 in 15 in wideFull review
For a buyer matching an existing Sub-Zero kitchen on a smaller budget, with a floor drain, while stock lasts. The DEU1550I makes more ice and works outdoors.
Sub-Zero $3,710$3,710
Prices were last checked November 2, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Sub-Zero DEU1550I for output (65 lb of ice a day vs 50 lb of ice a day).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 15 in wide undercounter ice maker; a clear win is highlighted. How we rank explains each one.
| Factor weight | Sub-Zero DEU1550I | Sub-Zero UC-15I |
|---|---|---|
| Overall rating | 3.1/5 | 3.1/5 |
| Value 30% | 20 $83.54 per lb a day ($5,430, 65 lb a day) | 26 $74.20 per lb a day ($3,710, 50 lb a day) |
| Output 15% | 73 65 lb of ice a day | 45 50 lb of ice a day |
| Energy use 10% | 50 energy use not published (neutral score used) | 50 energy use not published (neutral score used) |
| Storage 10% | 75 25 lb of storage | 75 25 lb of storage |
| Warranty 25% | 58 2 years on the unit, 5 years on the sealed system | 58 2 years on the unit, 5 years on the sealed system |
| Drain 10% | 30 gravity drain only, needs a floor drain | 30 gravity drain only, needs a floor drain |
Specifications
| Sub-Zero DEU1550I | Sub-Zero UC-15I | |
|---|---|---|
| Ice | ||
| Ice type | Clear | - |
| Ice a day | 65 lb | 50 lb |
| Bin storage | 25 lb | 25 lb |
| Install | ||
| Width | 15 in | 14.8 in |
| Height | 34.5 in | 33.6 in |
| Depth | 23.1 in | 23 in |
| Drain | Gravity only | Gravity only |
| Outdoor rated | Yes | - |
| Panel ready | Yes | Yes |
| App or remote monitoring | Yes | - |
| Warranty | ||
| Unit warranty | 2 years | 2 years |
| Sealed system warranty | 5 years | 5 years |
| Released | 2026-06 | - |