Built In Ice Makers for a Steady Cube Supply
The EdgeStar BI18SS is our top pick for most households because it produces up to 50 pounds of clear ice daily and fits under standard counters. Its main limitation is that it requires a drain line, which adds installation complexity.
A built in ice maker keeps a steady supply of cubes without taking up counter space. These units fit under counters and connect to your water line and drain.
We looked at output, storage, and installation requirements to help you choose. Owners report that clear ice and fast production matter most for entertaining.
What we recommend
EdgeStar BI18SS
The EdgeStar BI18SS produces up to 50 pounds of clear, restaurant quality ice per day. It holds 25 pounds in its bin, and the stainless steel front matches most kitchens. Users note that the compressor is quiet and the ice stays frozen for hours.
Pros
- Produces clear ice quickly
- Fits standard undercounter space
- Stainless steel door resists fingerprints
Cons
- Requires drain line
- No water filter included
NewAir AI15S
The NewAir AI15S is narrower at 15 inches wide, making it ideal for tight spaces. It yields 40 pounds of ice each day and stores 15 pounds. Owners like its self cleaning function and the ability to choose cube size.
Pros
- Fits in narrower cutouts
- Two cube sizes
- Self cleaning mode
Cons
- Lower storage capacity
- No built in light
Scotsman MCHS45
Scotsman is known for commercial reliability, and the MCHS45 brings that to home use. It produces up to 65 pounds of gourmet cube ice daily and stores 18 pounds. The stainless steel exterior is durable, but the unit is taller than most.
Pros
- High daily output
- Commercial grade construction
- Gourmet cube shape
Cons
- Deep footprint
- No water filter
Magic Chef MCIM22S
The Magic Chef MCIM22S offers a low cost way to add a built in ice maker. It makes 22 pounds of ice in 24 hours and stores 8 pounds. It requires a water line but has a simple front venting design.
Pros
- Budget friendly
- Front venting
- Easy to install
Cons
- Low output
- Small bin
Hoshizaki IM-21CNH
Hoshizaki is a leader in commercial ice machines, and the IM-21CNH is designed for built in home use. It produces 50 pounds of clear, crescent ice per day and stores 18 pounds. The unit is very quiet and uses a stainless steel evaporator.
Pros
- Excellent clear ice quality
- Quiet operation
- Durable construction
Cons
- Wider than standard
- Higher price
Koldfront EIMB50
The Koldfront EIMB50 prioritizes storage with a 25 pound bin. It makes up to 40 pounds of ice daily and has a stainless steel front. Users appreciate the adjustable legs and reversible door.
Pros
- Large storage capacity
- Reversible door
- Adjustable legs
Cons
- Requires drain
- Not self cleaning
Summit SPIN50W
The Summit SPIN50W is a panel ready model that accepts a custom cabinet front. It produces 50 pounds of ice per day and holds 18 pounds. It features a front breathing system, allowing for a flush installation.
Pros
- Panel ready for custom look
- Front venting
- High output
Cons
- Trim kit sold separately
- Deep depth
What matters most
Compared at a glance
| # | Model | Daily Output | Best for | Score | Price |
|---|---|---|---|---|---|
| 1 | EdgeStar BI18SS | 50 lbs | Best Overall | 9.4 | Check price |
| 2 | NewAir AI15S | 40 lbs | Compact Fit | 9.0 | Check price |
| 3 | Scotsman MCHS45 | 65 lbs | High Volume | 9.1 | Check price |
| 4 | Magic Chef MCIM22S | 22 lbs | Budget Friendly | 8.5 | Check price |
| 5 | Hoshizaki IM-21CNH | 50 lbs | Premium Clear Ice | 9.2 | Check price |
| 6 | Koldfront EIMB50 | 40 lbs | Large Storage | 8.8 | Check price |
| 7 | Summit SPIN50W | 50 lbs | Professional Design | 8.7 | Check price |
Frequently asked questions
Do built in ice makers need a drain?
Yes, most built in ice makers require a drain line to remove excess water. Some models have a pump that can pump water upward to a sink drain, but a nearby drain is still needed.
How much clearance is needed for a built in ice maker?
Typically, you need at least 2 inches of clearance behind the unit for ventilation. Some models are front vented and can be installed flush. Check the manufacturer’s specifications for exact clearances.
Can I install a built in ice maker myself?
If you are comfortable with plumbing and electrical work, you can install it yourself. However, it is safer to hire a professional to ensure proper water and drain connections.
How long do built in ice makers last?
With regular maintenance, a quality built in ice maker can last 5 to 10 years. Cleaning the condenser and changing water filters can extend its life.
What is the difference between clear ice and cloudy ice?
Clear ice is formed slowly and has fewer impurities, making it harder and slower to melt. Cloudy ice is formed quickly and contains trapped air and minerals. Many people prefer clear ice for drinks.
Can I use a built in ice maker without a water line?
No, a built in ice maker requires a water line to produce ice. Portable countertop models have a reservoir, but built in models are designed to connect to your home’s water supply.
Do ice makers with a storage bin keep ice frozen?
Yes, the storage bin is insulated and often refrigerated to keep the ice from melting. Some models have a fan that circulates cold air to prevent clumping.
What maintenance does a built in ice maker need?
You should clean the ice bin and interior regularly, and replace the water filter if the unit has one. Periodically check the condenser coils and clean them if dirty.
The bottom line
For most homes, the EdgeStar BI18SS offers the best balance of output, capacity, and size. If you have a narrow space, choose the NewAir AI15S. For high volume needs, the Scotsman MCHS45 is worth the extra cost.
