The right ice maker with a water line depends first on where it will go and what kind of ice you want. A countertop model such as the Whynter IDC-221SC can connect to a water supply while taking up less space; undercounter machines such as Newair’s models are built for a more permanent installation and make clear ice. Compare ice style, storage, drain needs, plumbing requirements and ventilation—not just the advertised pounds per day.
Countertop or undercounter: which format fits?
“Ice maker with water line” can mean a compact countertop appliance with an optional direct connection, or a larger undercounter machine designed to be plumbed in. They are different installation classes, not interchangeable versions of the same appliance. A direct water connection also does not automatically mean the machine can operate without a drain: check the exact model’s instructions.
Countertop: Whynter IDC-221SC
Whynter describes the IDC-221SC as a countertop ice maker and water dispenser that can be filled manually or connected to a water main. Its product page lists bullet-shaped ice in two sizes, a 2-liter reservoir, 1.32-pound ice storage capacity and an included 12-foot water line. Whynter says no drain is required because melted ice water is filtered and reused. These are manufacturer specifications, not independent test results. Whynter IDC-221SC product page.
There is an important discrepancy in the listed production figure: the page summary says “up to 26 lbs. of ice per day,” while its specification table lists “Ice Formation” as 22 pounds per 24 hours. Check the current product listing or documentation rather than treating either number as a settled rating.
#1 Best Overall
- HIGH CAPACITY & FAST ICE MAKING – Designed for heavy-duty usage, this commercial ice maker produces up to 100 lbs of ice per 24 hours, crafting 45 clear ice cubes per cycle in just 11-15 minutes. It features a large built-in storage bin holding 33 lbs of ice, ensuring you never run out during peak hours. The automatic overflow prevention system guarantees safe operation, making it perfect for large families, parties, or commercial settings.
- ETL CERTIFIED FOR COMMERCIAL & HOME USE – Safety and quality are paramount. Unlike standard units, the EUHOMY ice maker is ETL certified for both household and commercial applications. Its versatile design allows it to be used in indoor/outdoor kitchens, restaurants, bars, hotels, or grocery stores. Whether you are hosting a backyard BBQ or running a coffee shop, this machine delivers reliable performance.
- INTUITIVE LCD CONTROL PANEL – Take full control with the smart LCD display. It allows you to monitor the ambient temperature and adjust the ice-making time to customize the thickness of your ice cubes—thin for smoothies or thick for drinks. The panel also features a one-touch Automatic Cleaning function, simplifying maintenance and ensuring your ice is always fresh and hygienic.
- EFFICIENT COOLING & QUIET OPERATION – Equipped with a powerful yet quiet compressor, this under-counter ice machine creates ice efficiently without disrupting your environment. The advanced energy-saving technology helps reduce electricity consumption, lowering your operating costs over time. The stainless steel construction not only looks professional but also provides durability and effective heat dissipation.
- INSTALLATION & MAINTENANCE TIPS – This unit utilizes Gravity Drainage (requires a floor drain or gravity outlet; strictly no pump included). Please ensure the drain hose is positioned lower than the machine specifically for optimal drainage. IMPORTANT: Before first use, keep the machine upright for at least 24 hours to let the refrigerant settle. We recommend running the self-cleaning cycle twice before consuming the first batch of ice.
Undercounter: Newair clear-ice models
Newair’s NCI080SS00 is a 15-inch undercounter clear-ice machine described as suitable for built-in or freestanding use. The manufacturer states an 80-pound daily capacity. Its product page showed the model as sold out when accessed in 2026, so verify current availability directly. Newair NCI080SS00 product page.
Newair’s 18-inch undercounter model connects directly to a water line. The manufacturer states output of 62 to 100 pounds per 24 hours, depending on conditions, and lists dimensions of 17.7 inches wide by 22.6 inches deep, with a height of 32.3 inches for the ADA version or 34.3 inches. The page also lists supply and drain components. Confirm dimensions and included parts against the current product page and installation documents. Newair 18-inch undercounter model.
Rank #2
- 13 Mins Ice-Making & Ultra Quieter: Our EUHOMY countertop ice maker only takes 13mins that will enjoy 16 crystal fresh CUBES ice. With a 1.5L external water tank and powerful compressor, the portable ice cube maker machine easily makes maximum ice capacity to 34lbs ice per day and holds up to 1.8lbs ice at a time. Also, our ice maker is not only excellent in refrigeration, but also at less than 42db normal noise, ensuring a comfortable and quiet environment to enjoy ice-making, similar to ae working freezer (Note: Please use ice promptly or store in a freezer to prevent melting)
- 2 Ways to Add Water & Adjustable Multi-Sized Ice: The countertop ice maker machine holds up to 2L of water (including a 0.5L built-in tank), minimizing how often you need to refill it. At the same time, you won’t worry there is not enough water to make more ice cubes to meet your different needs. Best of all, you can adjust the ice-making time to increase or decrease the thickness of the ice cubes; different time settings produce ice cubes of varying thickness
- Smart Operation & Self-Cleaning: The ice maker holds a user-friendly LCD display with clear indicators. The indicator flashes remind you to take out ice to prevent overflowing when the basket is full. And it'll remind you to add water by flashing. Additionly, our compact ice maker maintains hygiene is effortless: just press the “+” button for 3s after adding water to run automatic deep-cleaning mode for 20mins. ensuring every cube is fresh
- 24H Intelligent Reservation & Save Money: With a convenient 24-hour timer function, the ice making reservation: set an appointment at night to make ice cubes with our ice maker machine and to enjoy refreshing cold drinks the next morning. Just by pressing the "-" button for 3s once and set the reservation time to offer on-time ice production. What‘s more, you'll save money and time while enjoying refreshing drinks at home instead of tripping to the convenience store for ice any more
- Accessories & Service Promise: Include external water tank, ice basket, ice scoop, manual and well-designed package. Our Mission is committed to providing customers with premium EUHOMY ice maker at a reasonable price. You totally deserve a more exquisite life! We offer 12-month after-sales service from the original purchase date & technical service support. Suppose you have any questions about using our Ice Maker, our customer support is always ready to help you
Compare the features that affect daily use
| Model | Installation class and ice | Manufacturer-stated production | Storage and connection details |
|---|---|---|---|
| Whynter IDC-221SC | Countertop; bullet-shaped ice in two sizes | Product page says up to 26 lb/day in its summary and 22 lb per 24 hours in its specification table; verify current documentation | 1.32 lb storage; 2-liter reservoir; included 12-foot water line; manufacturer says no drain is required |
| Newair NCI080SS00 | 15-inch undercounter or freestanding; clear ice | 80 lb/day, per Newair | Storage-bin capacity and connection details: not stated on the cited product page |
| Newair 18-inch undercounter model | Undercounter; clear ice | 62–100 lb per 24 hours, depending on conditions, per Newair | Storage-bin capacity: not stated on the cited product page; supply and drain components are listed as included |
Figures in this table are manufacturer claims, not results from a controlled comparison. Daily production and storage are different measures: production is an advertised amount made over time, while storage describes how much ice the bin holds at once. A machine with a high stated daily output may still need its bin emptied or replenished during heavy use. The cited product pages do not establish a common independent test, reliability comparison or energy-use ranking.
Check plumbing, drainage and ventilation before buying
Hookup requirements vary by model. The figures below are examples from specific manufacturers’ guidance, not universal requirements for ice makers. Use the exact owner’s manual for the selected appliance and follow applicable local plumbing codes. Have qualified personnel handle work beyond your experience or local rules.
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- AUTOMATIC ICE MAKING: This item makes its own bullet-shaped ice, and keeps it stored in an internal storage container ready to be dispensed instantly. It can store up to 0.65lb of ice but makes up 17.5 lbs of ice daily.(DOESN'T KEEP ICE FORZEN)
- 2-IN-1 DESIGN: Capable of dispensing both ice and water, this item is multi-purpose and is essential for any setting for making ice cold water available for everyone.(NO HOT WATER)
- BOTTLELESS: Our water cooler is bottle less and will reduce the cost of constant purchases of water. Easy to hook up.It comes with water line, teflon tape, water line connector and user manual.(NO FILTER)
- INTUITIVE TOUCH SCREEN CONTROLS: Touch screen control panel is straightforward, easy to understand, and easy to use. Indicator lights tell you when ice is being made, water is cooling, and when both are ready to dispense.
- STAINLESS STEEL WELD TANK: Built with a durable stainless steel tank, this water cooler prevents overheating and ensures long-lasting performance, providing you with peace of mind and reliability
Water supply and filtration
- Haier’s guidance for the appliance it covers calls for a cold-water inlet with ¼-inch soft copper tubing, a shut-off valve and continuous supply. It specifies a minimum pressure of 15 psig and static pressure no greater than 80 psig, with recommended inlet water temperature of 41°F to 90°F. It recommends a suitable filter, warns that softened water may produce white, mushy cubes that stick together, and says deionized water is not recommended. Haier plumbing guidance.
- For a different example, Sub-Zero’s Designer Series guide specifies a ¼-inch compression water connection, 35–80 psi supply pressure and 40–100°F water temperature. It calls for an accessible shut-off valve, says not to use self-piercing valves and requires an in-line filter where water has high sediment content. These details apply to the models addressed in that guide. Sub-Zero Designer Series guide.
Drain and placement
Some machines reuse meltwater, while others require a drain line. Haier’s covered appliance requires its drain line to be connected before use and sets routing constraints; Sub-Zero’s guide also specifies drain tubing. Do not assume that a direct water-line connection eliminates drainage work. Check whether the selected machine needs a floor drain, gravity drainage or another approved arrangement in its manual.
Undercounter placement also requires attention to clearance and airflow. Haier says its covered appliance may be freestanding, enclosed under a counter or built in, subject to ventilation and clearance requirements; it recommends leveling and keeping the front unobstructed for ventilation. Follow the appliance’s specific installation instructions rather than enclosing a machine based on dimensions alone. Haier installation guidance.
Rank #4
- Triple - Function Efficiency: Ice, Hot & Cold Water：Experience the ultimate convenience with NUNET's 3 - in - 1 appliance. The built - in ice maker churns out a remarkable 44 pounds of ice daily, storing up to 4 pounds at once. Need a hot beverage? It rapidly produces 0.8L of steaming hot water. For cold refreshments, it can dispense 2.5L of ice - cold water, meeting all your hydration and cooling needs.
- User - Friendly Design for All Your Water Needs：The NUNET portable water dispenser with an ice machine features an intuitive touch - button operation panel. Clear - lit indicators guide you through every step. With three distinct water faucets - hot water (≥194℉), room - temperature water, and cold water (≤46℉) - it caters to a wide range of daily requirements. The included insulated water bottle is perfect for keeping your hot coffee hot or cold drinks chilled, and can even be used for ice storage.
- Versatile Water Supply Options：Adding water to this dispenser is a breeze. You can either directly fill it up to 0.8 gallons. Or, for added convenience, utilize the provided 10ft PE water inlet hose. It can be effortlessly connected to your water filtration system using the 1/2" or 1/4" diameter hose adapter. This automatic water - supply feature ensures continuous and stress - free ice - making.
- COMPACT STAINLESS STEEL DESIGN with CO-OP STAND PAIRING [ASIN: B0H6LDGCKM]：Featuring a high-end stainless steel finish operating at a whisper-quiet 45dB. While it fits countertops with clearance above 19", standard overhead cabinets stand at only 18" limit. To bypass these strict vertical restrictions, we highly recommend pairing this machine with our NUNET Heavy Duty Stand [ASIN: B0H6LDGCKM]—place it next to your counter to free up workspace and hide a 5-gal jug below!
- Energy - Efficient and Reliable Warranty：The water heater consumes only 320W, while ice - making and water - cooling operate at an energy - saving 160W, allowing it to be powered by any 500W power station. As a US - based company, NUNET stands behind its products with easy - to - access technical support and a comprehensive one - year warranty.
A practical selection checklist
- Measure the location. Confirm available width, depth and height, including any required ventilation clearance and access for service. For built-in use, verify that the model is rated for that installation.
- Choose the ice style. The Whynter example makes bullet-shaped ice; the cited Newair undercounter machines make clear ice. Select based on how you plan to serve and store it.
- Size production and storage separately. Estimate peak demand, then compare the manufacturer’s daily output claim with the listed bin capacity. Ask the manufacturer if a crucial storage figure is not listed.
- Confirm the connection plan. Determine whether the machine can be manually filled, requires a water line, or supports either method. Verify supply fitting, pressure, water temperature and filter requirements in the model’s manual.
- Plan drainage and shutoff. Identify the required drain route and locate an accessible shut-off valve. Check local plumbing rules and whether a professional installer is appropriate.
- Verify current details. Product availability, dimensions, included components and specifications can change. Confirm them in the current manufacturer listing and installation documents before buying or cutting cabinetry.
Why there is no universal “best” model
The countertop Whynter and undercounter Newair examples serve different needs: compact bullet ice versus higher-volume clear ice in a built-in or freestanding installation. The manufacturer-stated output figures are not directly comparable test results, and storage capacity is not stated for the cited Newair pages. Choose by footprint, ice type, actual bin size, plumbing and drain conditions, ventilation, and confirmed availability—not by a single production number.
Sub-Zero likewise distinguishes its standalone undercounter ice maker, which it says needs a water connection to perform properly, from other appliances that may be installed without one. That is a brand-specific statement, not a rule for every refrigerator or ice maker. Sub-Zero water-connection guidance.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
