under sink water chiller Unique kitchen sink water cooler • kitchen sink

            Hydration is important, especially on hot days when we need to drink more water. But during the summer, the water supplied to the tap is warm and most of us prefer it cold. According to the specialists, drinking cold water during the summer can help us prevent heat strokes. It can also boost our metabolism and lose weight much easier. At the same time, cold water is excellent after exercising as it helps lower the body temperature.
            The most convenient solution to enjoy cold water at home or at the office is to install a water chiller. We selected for you the best under sink models. They are easy to use and highly efficient, featuring at the same time a long lifespan. We gathered all the necessary information to compare them and then we reviewed each model. Both advantages and disadvantages will be presented, so choosing one for your home will be very easy.

Top Under Sink Water Chillers Comparison

1. EverCold WIC400S 2. Chiller Daddy CHL-501 3. Iceberg CMI 01 4. Express Water PC2000
Check Price Check Price Check Price Check Price


Height (in.) 11.5 11.75 12 12.5
Width (in.) 10.5 8 16.5 14
Depth (in.) 15 16 12 7.25
Weight (lbs.) 32 23.75 27.6 30.9


Power Rating&Consumption
Voltage (V) 115 110 110-115 110
Hertz (Hz) 60 60 60 60
Power (W) 103 140 75 160
Flow Rate&Tank Capacity
Flow Rate (GPH) 1.75 1.32 3 2.37
Tank Capacity (Gal.) 1.2 0.6 0.52 0.31
Water Specifications
Cold Water Outlet Temperature (º F) 50 42 – 54 39.2 – 50 36 – 38
Minimum and Maximum Water Pressure (PSI) N/A 15 – 100 20 – 80 40 – 80
Materials Powder Coated Galvanized Steel Cabinet Stainless Steel Inside and Outside Stainless Steel Cold Water Tank Stainless Steel Design
Stainless Steel Waterways Powder Coated Cold Rolled Steel Casing
Refrigerant Type R134a R134a R134a N/A


Possibility to Connect to Other Drinking Water Systems N/A
Adjustable Water Thermostat
1/4” Quick Connect Fittings 1/4″ MNPT Stainless Steel Tube In & Out Excellent Performance in All Climates Maintenance-Free
Includes a 3-Prong Power Cord Includes a 3-Prong 72-inch Grounded Cord Pressure Reducing Valve and Shock Arrestor Easy Installation
Automatic Restart Motor Cut-Off


Warranty 1-Year Limited Warranty 1-Year Limited Warranty 2-Year Limited Warranty N/A
User Manual
Customer Support

Under Sink Water Chillers Evaluation

1. EverCold WIC400S

This system will deliver you on-demand cold water at home or at the office. Its compact design makes it the perfect solution for most under sinks, being easy to install due to the quick connect fittings. With a power consumption of 103W and a cooling capacity of 130W, this water chiller won’t increase your electricity bills. It features a 1.2-gallon water tank and can deliver up to 1.75-gallon of cold water per hour. The water temperature from the outlet will be approximately 50 degrees Fahrenheit.

For a long-lasting performance, the cabinet is made of powder coated galvanized steel and all the waterways are made of stainless steel. The R134a refrigerant is ozone friendly, being a better option for the environment. It comes with a hermetic compressor and an air cooled condenser. For added convenience, you can control the water temperature with the help of the adjustable thermostat. The chiller is warranted for a period of 1 year against defects in materials and workmanship.



Comes with a 2-foot long insulation There are customers who complain about the longevity of the system
External tube evaporator
External dial for water temperature control
Easy to access drain plug
Hermetically sealed refrigeration system


Overall, this system is well-made and comes with many built-in features. You will need a single lever accessory faucet when you install it which is not included. For buying this chiller you have to be willing to pay more many. It is the most expensive model selected by us. Also, according to some customers, its durability is questionable.

2. Chiller Daddy CHL-501

Here is another water chiller that was specially designed to fit under the sink. It doesn’t occupy too much space, so you can install it even if you have a drinking water system installed under the sink. It is the lightest system in our list, weighing only 23.75 pounds. The 140W motor is powerful enough to deliver water instantly. The water reservoir has a capacity of 0.6 gallons and the flow rate is 1.32 GPH.

With the built-in thermostat you can adjust the cold water temperature according to your preferences. The temperature range is between 42 and 54 º F. Both the inside and the outside of the unit is made of stainless steel. Furthermore, it comes with an eco-friendly R134a refrigerant. The chiller is easy to install and is ideal for both home or office. For more convenience, it comes with a 3-prong 72-inch grounded cord. As about the warranty, this model is covered by a 1-year warranty.



Features a drain cap When chilling the water it becomes a little bit noisier
Easy to install due to the quick connections tubes and unions
Lightweight design
UL and CSA certified
There’s also available an optional pressure limiter


Great value for the money. The system works very well and pretty fast. Installing it is easy and it features a compact and lightweight design. The system is UL and CSA certified. If you want, you can buy a pressure limiter for extra money. The only disadvantage is that is a little bit noisy but luckily the cabinet door will cut the noise.

3. Iceberg CMI 01

For enjoying cold water on demand, this chiller needs to be connected to a countertop faucet. It is compact and lightweight. With a power consumption of 75 W, this system won’t raise your electricity bill. It can deliver up to 3 gallons per hours which is quite impressive. The tank has a capacity of 0.52 gallons. You can select the desired water temperature with the help of the adjustable thermostat. The minimum temperature is 39.2 º F while the maximum is 50 º F.

The environmentally-friendly refrigerator is a nice plus as well as the included quick-release 3M filter. The water tank is made of stainless steel and the evaporator is made of cooper. For superior efficiency, the system was tested in extreme temperatures, delivering the same performance in all climates. Il also includes a pressure reducing valvevand a shock arrestor which protect the system from pressure surges and water mains. This product is covered by a 2-year warranty.



Comes with multiple certifications: CB, C-UL-US, WRAS It can’t support much volume
Long, 2-year warranty
Great output capacity: 3 gal. per day
Stainless steel water tank
Excellent performance in all climates


Ideal if you live in a cold or hot climate. It features an impressive flow rate and is made of highly-durable materials. Unlike the other systems selected by us, this one comes with a 2-year warranty. Among the things we don’t like are the fact that it doesn’t support much volume.

4. Express Water PC2000

This water chiller comes with a nice design and some great features. It looks like a black box with silver front side and it fits under most sinks. It weighs 30.9 pounds. It can be used with other drinking water systems, thus allowing you to drink cold filtered water every time you want. The water delivered by the chiller is around 36-38 degrees Fahrenheit, so is quite cold. According to the manufacturer’s specifications, it has a flow rate of approximately 2.30 gallons of water per hour.

The system may require some work to install it as the provided instructions are rather poor. Fortunately, once installed, it doesn’t require any maintenance. To make things easier for you, this model features operating LED lights which are conveniently placed on top of the unit. Last but not least, the system was rigorously tested in terms of performance and quality.



Features a cooling fan on the right side of the unit Poor instructions
Water inlet and outlet are conveniently positioned on the top Louder operation when it chills the water
Budget-friendly No outside knob for adjusting the water temperature
Features power and operating LED light
Attractive design


Nice option if you want a long-lasting chiller. It is available at an affordable price and it works pretty well. In comparison to the other models that have a poor design, this one comes in a nice black box that features operating lights. The fan works only when the system cools the water and it does a great job. Nevertheless, the instructions are rather poor and some customers complained about the fact that is rather noisy when it cools the water.

            Although there aren’t many water chillers available at this moment, the ones selected by us promise excellent performance. They are compact, easy to use, and are made of good quality materials. For a small house, we recommend you EverCold WIC400S of Chiller Daddy CHL-501. The first model is more expensive but it comes with great features that make it very convenient. The second one is the lightest chiller in our list and is very easy to install. For a larger house, you can go with either Iceberg CMI 01 or Express Water PC2000. The first system comes with a long warranty and many certifications, while the second one is the most affordable model in our list. It comes with many positive reviews and it features a nice design. The final decision is yours, so take your time and choose the system that best suits your needs.

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