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WhisperKOOL Slimline LS Cooling Unit: Product Review

WhisperKOOL Slimline LS Cooling Unit: Product Review

Last year, WhisperKOOL announced Slimline 2500 and 3300 are out, and WhisperKOOL Slimline LS from the Luxury Series (LS) is in!

WhisperKOOL has engineered a completely new design with upgraded features that give a powerful performance, silent operation, and longevity to safeguard your investment in great wine using the best available technology.

The new WhisperKOOL Slimline LS self-contained ductless cooling unit has evolved into a device that can cool in two capacities at the flick of a switch. This self-contained through-the-wall unit provides effective cooling in a compact size.

The WhisperKOOL Slimline LS has been introduced by WhisperKOOL to replace the Slimline 2500 and Slimline 3300 cooling units. WhisperKOOL has made this surprising announcement last year. The 'Slimline 2500 and Slimline 3300' will be phased out in favor of the first unit in the new Luxury Series, the 'Slimline LS'


WhisperKOOL Slimline LS Cooling Unit

Compact. Luxurious. Quiet. 

The Slimline LS cooling unit is a compact, self-contained ductless cooling unit. Let’s define these terms below to get a better understanding of how this unit works.

Self-contained means the evaporator and condensing units share a single housing. In contrast to split systems, which have separate condensing and evaporator units.

The Slimline LS is ductless, which means it does not require any ductwork. Cool air goes into the wine cellar through the evaporator and heated air is vented out into an adjacent room or unused space through the condenser. Ductless WhisperKOOL wine cooling systems are designed to be installed through the wall.

Meet WhisperKOOL's newest and first unit in their Luxury Series...

WhisperKOOL Slimline LS Cooling Unit

WhisperKOOL Slimline LS Cooling Unit


Features of WhisperKOOL Slimline LS Wine Cellar Cooling Unit

Let's start with the main features:

WhisperKOOL Slimline LS Wine Cellar Cooling Unit Main Features


You’ll find the thermostat on the front of the device. It contains Advanced System Protection, which includes alerts that sound if certain parameters aren’t met.


The fan switch and bottle probe port are both accessible from the side panel. The device connects to a standard electrical socket for power.


WhisperKOOL has incorporated quieter centrifugal blowers that may also be adjusted to a low or medium speed, larger coils for increased system capacity, and a better condensate management system. For simpler access, the controller has been relocated to the condenser side of the device.


It has a controller located at the condenser side of this unit for easier and fast access. And the best part of this cooling unit is it can cool at 2 capacities with just a flip of a switch! You may change the capacity rating by altering the fan speed on the side of the device.


The system is meant to provide a customizable decorative panel above the cellar doorway, allowing clients to create a distinctive look.


The UV light technology is an added optional feature to protect your wine cellar cooling system from bacteria and mold. It enhances overall indoor air quality while also improving the unit's performance.

This may be an optional feature, but adding UV light technology to the cooling unit enhances overall indoor air quality and unit performance. The UV light upgrade protects the unit against mold and other bacteria from developing. Here are some of the benefits of UV light technology:

  • Prevents the growth of mold inside the system.
  • Eliminates pathogen and lowers allergen levels in the wine cellar.
  • Eliminates odors and unpleasant smells that are associated with mold and bacterial growth.
  • Maintains a cleaner and healthier cooling system, keeping the unit operating at optimal efficiency.

The first line of cooling units that include a UV light option are the Phantom and the Slimline series.

The WhisperKOOL Phantom Series product review can be found in this article: WhisperKOOL Phantom Series: Product Review


Benefits of WhisperKOOL Slimline LS Cooling Unit


WhisperKOOL designed Slimline LS to provide higher cooling performance that you can customize with just one click to give the precise and perfect temperature and humidity for your wine.


For people who are unsure of the size of their wine cellar or maybe you are thinking in the future, you can expand, this cooling unit is a perfect choice for you.

Unlike other units, Slimline LS can cool your 300 cu.ft. as well as 650 cu.ft. wine cellar. This is an amazing innovation for wine lovers and collectors. You do not have to replace your cooling units when you want to expand your wine cellars.

WhisperKOOL Slimline LS Cooling Unit Controller Layout


This cooling unit comes with larger coils compared to your old 2500 & 3300 for greater capacity, which is up to 45% more, and an all-new and improved condensate management system. WhisperKOOL added centrifugal blowers which are significantly quieter even in medium or low speed.


Let's not overlook the aesthetic of this unit and how sleek and timeless it looks. It has a simple but captivating case perfect to go with any theme in your wine cellar. Whether your cellar has a rustic or modern design, we are sure the Slimline LS cooling unit will definitely blend in your decor!


Also, Slimline LS is easy to install. It is a self-contained or through-the-wall meaning it is designed to be mounted in an existing wall (the space between the cellar door and ceiling). The good thing about this type of installation is you do not require a licensed HVACR technician to install this unit.


Specifications of the New Slimline LS

Dimension wise, Slimline LS is longer and slightly wider and taller compared to your old 2500 and 3300. Unlike in the SC PRO series case, where SC PRO looks almost the same and its dimensions as well compared to its predecessors SC Series and the XLT.

WhisperKOOL Slimline LS Cooling Unit Specifications

Overall, this unit is one of our quietest and most compact self-contained cooling systems. WhisperKOOL Slimline LS units are designed for through-the-wall and above-the-doorway installations. The new Slimline LS has developed into a device that can cool at two capacities at the flip of a switch.

We are sure you will still miss Slimline 2500 & 3300, but there's no need to worry. Because the new and improved WhisperKOOL Slimline LS Cooling Unit is here for you!

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