EdgeStar IB450SSP vs Sub-Zero UC-15I

Last updated: November 2, 2026

The EdgeStar IB450SSP is the better undercounter ice maker overall, rated 3.2 to 3.1. The EdgeStar IB450SSP leads on value and drain. The Sub-Zero UC-15I wins on warranty. The EdgeStar IB450SSP costs $2,221 less ($1,489 vs $3,710).

EdgeStar IB450SSP vs Sub-Zero UC-15I

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?

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 weightEdgeStar IB450SSPSub-Zero UC-15I
Overall rating3.2/53.1/5
Value 30%68 $29.78 per lb a day ($1,489, 50 lb a day)26 $74.20 per lb a day ($3,710, 50 lb a day)
Output 15%45 50 lb of ice a day45 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 storage75 25 lb of storage
Warranty 25%0 1 year on the unit58 2 years on the unit, 5 years on the sealed system
Drain 10%100 drain pump included30 gravity drain only, needs a floor drain

Specifications

EdgeStar IB450SSPSub-Zero UC-15I
Ice
Ice typeClear-
Ice a day50 lb50 lb
Bin storage25 lb25 lb
Install
Width14.6 in14.8 in
Height32.9 in33.6 in
Depth23.4 in23 in
DrainPump includedGravity only
Outdoor ratedNo-
Panel readyNoYes
App or remote monitoringNo-
Warranty
Unit warranty1 year2 years
Sealed system warranty1 year5 years

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