Our readers keep the lights on and my morning glass full of iced black tea. As an Amazon Associate, I earn from qualifying purchases.11 Best 18 Inch Undercounter Ice Maker | Myth-Busting Ice Output

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The Coolski delivers an impressive 130 pounds of ice per day from a 15-inch wide chassis, making it one of the highest-output mid-range units available. The gravity drain and front-vented forced-air refrigeration system allow both built-in and freestanding installations without overheating, even inside a tight cabinet. The LCD digital control panel lets you choose from three cube sizes, and the bright interior LED light makes night-time scooping easy.

Users consistently note the fast cycle time — a full batch forms in under ten minutes — and the thick, slow-melting cubes that hold up well in coolers and cocktails. The stainless steel exterior and triple-layer housing construction help the ice remain solid longer than typical single-wall machines. The inline water filter reduces sediment and improves taste, which is a welcome addition at this price tier.

The main criticism involves the ice sheet sometimes not breaking apart fully, requiring manual separation before the cubes drop into the bin. Also, the included drain hose at the bottom of the tub can cause minor water spillage if the connection is not perfectly level. Overall, for buyers who prioritize raw output and don’t mind occasional ice-sheet breaking, this is the strongest value in the lineup.

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This Mojgar model hits a sweet spot for heavy home use and light commercial settings, producing 100 pounds of ice per day with 11-20 minute cycles. The ETL certification adds a layer of confidence for safety and efficiency, and the 304 stainless steel exterior combined with ABS inner tank and triple-layer vacuum insulation cuts energy consumption by an estimated 25% compared to industry averages. The high-definition LCD touch screen integrates four core functions: ice thickness adjustment, scheduled ice making, automatic cleaning, and real-time temperature display.

The reversible double-door design allows left or right opening, and the four adjustable leveling feet make it stable even on slightly sloped floors. The gravity drainage system simplifies installation — no pump needed as long as the drain outlet sits below the machine. Users in office environments report the unit is quiet enough to avoid distraction, and the self-cleaning cycle keeps maintenance straightforward.

The 30-pound storage bin is slightly smaller than some competitors, meaning the machine cycles more frequently during peak use. Some users also noted that the included ice scoop is large for the bin opening. For anyone wanting a certified, energy-conscious machine that fits a standard 15-inch cabinet space, this is a strong mid-range pick.

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The Gilati produces 120 pounds of ice per day with a remarkably fast cycle time of 10 to 16 minutes per batch of 40 cubes. The smart LCD panel displays ambient temperature and allows you to customize ice thickness by adjusting the ice-making timer, and a 24-hour programmable timer lets you schedule ice production to match your peak hours. The reversible stainless steel door and 14.96-inch width make it a true space-saving fit for standard undercounter openings.

The 3-layer insulated construction uses cyclopentane foam, which provides superior cold retention compared to standard polyurethane, keeping ice frozen longer even when the bin is full. Users appreciate the self-cleaning one-touch function, activated by holding the timer-clean button for five seconds. The unit also includes a water inlet and outlet hose set, plus an ice scoop, so most of what you need for installation is in the box.

A few buyers reported that the machine is slightly too tall for some standard under-cabinet spaces, so measure your clearance carefully. The ice drop noise is noticeable in quiet kitchens, and the front grill discharge can blow warm air into the room. For those with adequate vertical clearance, the combination of speed and programmability is excellent.

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Coolake brings a 100-pound daily output with an emphasis on insulation and quiet operation. The thickened insulation technology keeps ice frozen for up to eight hours, which is ideal for garages, outdoor kitchens, or spaces where the ambient temperature fluctuates. ETL certified and running on R290a refrigerant at 280 watts, this unit balances production speed with energy efficiency. The removable filter system improves ice clarity and taste by reducing sediment before freezing.

The intuitive control panel includes water shortage and ice-full alerts, plus adjustable ice thickness settings (thin, medium, thick) suited for cocktails, whiskey, or milkshakes. The 15-inch width fits standard cabinets, and the stainless steel construction with a 65-pound overall weight feels substantial. Users consistently mention that the machine is very quiet during operation and that the ice cubes come out clear and slow-melting.

Installation can be tricky for those unfamiliar with gravity drain setups — several reviewers noted that the manual lacks clear instructions for connecting the water supply line. The drain hose and water line are a bit short for some installations. For buyers who are comfortable with basic plumbing or have a floor drain nearby, this is a reliable, well-insulated option.

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Mojgar’s 90-pound-per-day model offers the largest storage bin in the mid-range tier at 35 pounds, which means less frequent cycling and more ice available during gatherings. The 15-inch width and reversible door make it a flexible fit for both built-in and freestanding positions. The digital touch panel gives you control over ice thickness and includes a timer, while the interior LED lighting makes scooping easy in dim conditions.

Users report that the first batch of ice arrives in about six minutes, with subsequent cycles averaging six to eight minutes for a full set of cubes. The stainless steel exterior with reinforced ABS interior liner and multi-layer insulation helps slow melting during busy service periods. The self-cleaning function is simple to activate and keeps the internal system free of scale buildup when used regularly.

The main trade-off with this unit is the noise level — the compressor and fan are more audible than some competitors, especially at night or in open-plan layouts. Also, the gravity drain requires careful leveling; if the unit is not perfectly level, the full-sensor can trigger prematurely. For those who need a large bin and fast initial ice production, this is a solid entry-level choice.

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TUATNUT focuses on ice retention with a triple-layer vacuum insulation system that keeps ice frozen for up to 12 hours — the best rating in this class. The 90-pound daily output and 35-pound storage bin match the Mojgar 90, but the high-density cyclopentane foam and food-grade stainless steel build prioritize cold retention over raw speed. The intelligent auto-cleaning system and LCD screen with 24-hour timer and ice thickness adjustment mirror the features found in more expensive units.

The reversible door and 15-inch width with four adjustable leveling feet provide installation flexibility, and the gravity drainage and automatic water replenishment make it effectively plug-and-play after the water line is connected. The ETL certification adds a safety and efficiency guarantee. Users in moderate climates report that ice stays solid in the bin for the full 12-hour claim, which is a significant advantage if the machine is not used constantly.

The trade-off is that the 11-20 minute cycle time is slightly slower than some 90 lb competitors, and the alloy steel exterior does not feel as premium as 304 stainless found on higher-priced models. Some reviews also mention that the instruction manual is confusing for first-time installers. For buyers in warmer environments or those who want maximum ice longevity, this is the best-insulated option at its price point.

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With a staggering 260 pounds of ice per day, the FoMup is built for commercial environments — restaurants, busy bars, and hotel kitchens that need continuous ice throughout peak hours. The 35-pound storage bin may seem small relative to the output, but the 8-15 minute batch cycle ensures the bin refills rapidly between uses. The three customizable ice thickness levels let you produce slow-melting thick cubes for craft cocktails or standard cubes for sodas and water pitchers.

The smart one-touch panel includes self-cleaning, a 24-hour timer, low-water alerts, and auto-stop overflow protection. The unit comes with a water filter and uses gravity drainage, compatible with undercounter, built-in, or freestanding setups. The heavy-duty stainless steel construction with cyclopentane foam insulation and a food-grade PP liner is designed for long-term commercial use. The warranty includes 12 months on the unit plus lifetime technical support.

Installation requires a 24-hour upright settling period before first use, which is standard for compressor-based machines. Some users have noted that the ice scoop included is too large for home use, and the unit is fairly heavy. At 260 lbs/day output, this is overkill for most residential kitchens — it truly shines in high-turnover commercial settings where every minute of downtime costs money.

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The EUHOMY produces chewable nugget ice — the soft, crunchy pebble ice popularized by Sonic drive-ins — at a rate of 70 pounds per day. The double-layer ice box design means the machine keeps two baskets’ worth of ice ready, and the advanced insulation ensures 80% of the nugget ice remains unmelted even after a full day in the bin. For home bar enthusiasts who enjoy nugget ice in sodas, cocktails, or iced coffee, this is the premium residential choice.

The multifunctional LCD control panel displays ambient temperature, water shortage, and ice-full alerts, plus a 24-hour timer and one-touch self-cleaning mode. The 14.98-inch width fits standard undercounter openings, and the unit can also be placed freestanding. Users report that the nugget ice is soft and easy to chew, and the machine keeps up well with daily family use. The self-cleaning feature is straightforward and helps prevent the mold and bacteria buildup common in nugget ice makers.

Reliability is a concern — several reviews mention pump failures within the first year, and customer support can be slow to respond. The unit also lacks an on/off switch; it stops making ice only when the ice pile pushes down the holding lever. For those willing to accept some risk in exchange for soft nugget ice at home, this delivers a great experience while it works.

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Joy Pebble’s nugget ice maker produces 66 pounds of chewable pebble ice per day from a compact 15-inch wide chassis that fits standard undercounter slots. It uses R600a refrigerant and draws only 183 watts, making it one of the most energy-efficient nugget ice machines on the market. The triple-layer insulation ensures the soft ice stays cold without melting quickly, and the self-cleaning function combined with an automatic water supply means minimal hands-on maintenance once installed.

Users in RVs and tiny homes particularly appreciate the quiet operation — the machine produces nuggets one at a time without the loud ice dump sound common in larger units. The compact size frees up freezer space that would otherwise be consumed by ice trays. The stainless steel construction and front-vented design allow both built-in and freestanding placement with decent airflow clearance.

The 17.6-pound storage bin is the smallest in this roundup, so heavy users will need to empty it frequently during parties. Some users also noted that the nugget ice size is smaller than expected, and the unit may not keep up with high-demand commercial settings. For a single person or couple who loves pebble ice in their drinks and values energy efficiency, this is a thoughtful choice.

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Coolake’s 320-pound-per-day undercounter machine is a serious piece of commercial equipment, packing a 120-pound storage bin and an advanced water filtration system that reduces scale buildup by up to 99%. The upgraded filter uses food-grade coconut shell-activated carbon to reduce lead and other chemicals, improving the taste and smell of the ice cubes. The stainless steel exterior and thickened insulation foam layers keep ice solid for 7-9 hours even in warmer environments.

The intuitive LCD display shows working status, self-cleaning function, ice thickness, and timer settings. The unit is designed for front-access maintenance, and the cool blue LED lighting adds a visual touch to bar and cafe settings. The warranty is notably strong — 3 years on parts and 5 years on the compressor — which reflects the manufacturer’s confidence in its build quality. Users running small coffee stands and bars report that the machine keeps up with continuous demand without issue.

The 26-inch width and 37-inch height mean this machine requires more cabinet space than typical 15-inch units. Installation is not plug-and-play for everyone; the size and weight (only 21.7 pounds listed, though that figure seems low for a 320 lb machine) may require professional setup. This unit is best suited for dedicated commercial spaces rather than home kitchens.

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The FOHERE produces 500 pounds of ice per day with a 350-pound stainless steel storage bin — numbers intended for high-volume commercial operations like hotels, seafood markets, supermarkets, and large catering businesses. The first-class compressor makes 182 ice cubes in just 10-15 minutes, and the air-cooled system runs continuously without overheating. The LCD touchscreen controls time start-up, ice thickness, and pre-booked ice-making schedules, and the self-cleaning function and diagnostic system monitor performance in real time.

The ice maker head connects to a separate storage bin, which allows greater flexibility in placement. The thicker insulating foam layer in the bin keeps ice solid for 8-11 hours and reduces energy consumption. The package includes a water filter, inlet hose, draining hoses, and stable feet. Users confirm that the unit produces bullet-shaped ice quickly and is quieter than many other commercial machines they have tried.

Assembly and operation manuals are poorly translated, and some users report difficulty with installation due to unclear instructions. The 262-pound weight and 65-inch height mean this is not a casual DIY project — it requires dedicated space and likely professional installation. A few users experienced breakdowns after a few months, and customer service response has been inconsistent. This machine is strictly for commercial operators who need massive ice volumes and have the facilities to support it.