WhisperKOOL Slimline LS Cooling Unit: Product Review | Wine Coolers Empire - Trusted Dealer

A few years ago, it was announced that WhisperKOOL Slimline 3300 and WhisperKOOL Slimline 2500 wine cellar cooling units are out, and WhisperKOOL Slimline LS from the Luxury Series (LS) is in!

WhisperKOOL Wine Cellar Coolers are engineered in 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 wine cellar cooling units have evolved into a device that can cool in two capacities at the flick of a switch. This self-contained through-the-wall wine cooling unit provides effective cooling in a compact size.

The WhisperKOOL Slimline LS has been introduced by WhisperKOOL to replace the WhisperKOOL Slimline 2500 and WhisperKOOL Slimline 3300 wine cellar 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 - WhisperKOOL Wine Cellar Cooling Systems are compact, self-contained, and ductless. Let’s define these terms below to get a better understanding of how this wine cellar air conditioner 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 Wine Cooling Unit

WhisperKOOL Slimline LS Cooling Unit - WhisperKOOL | Wine Coolers Empire - Trusted Dealer


Features of Slimline LS - WhisperKOOL Wine Cellar Cooling Units

Let's start with the main features:

WhisperKOOL Slimline LS Wine Cellar Cooling Unit Main Features | Wine Coolers Empire - Trusted Dealer


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


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


These WhisperKOOL wine cooling units have 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 wine cellar refrigeration
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-C light bulb to the cooling system enhances overall indoor air quality and unit performance. The UV-C light bulb 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 pathogens 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 WhisperKOOL Phantom and the WhisperKOOL Slimline series.

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

Benefits of Slimline LS - WhisperKOOL Cooling Units


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 cellars or maybe are thinking of in the future to expand, this wine cooler cellar unit is a perfect choice for you.

Unlike other wine room cooling units, WhisperKOOL 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 wine cooler units when you want to expand your wine cellars.

WhisperKOOL Slimline LS Cooling Unit Controller Layout | Wine Coolers Empire - Trusted Dealer


This modern wine cellar cooling system comes with larger coils compared to your old WhisperKOOL Slimline 2500 & WhisperKOOL Slimline 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 at 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 WhisperKOOL Slimline LS wine cooling system will definitely blend into your decor!


Also, WhisperKOOL Slimline LS is easy to install. It is 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 Slimline LS - WhisperKOOL Wine Room Coolers

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

WhisperKOOL Slimline LS Cooling Unit Specifications | Wine Coolers Empire - Trusted Dealer


Final Thoughts

Overall, this unit is one of our quietest and most compact wine cellar cooling units. 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.

Buy WhisperKOOL Slimline LS at Wine Coolers Empire!

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!

Need to pair your cooling system with modern wine racks? Ultra Wine Racks & WhisperKOOL cooling systems are perfect together! 


Need help? Feel free to contact us or call our customer service representative at 1-888-407-7770.

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Through-the-wall cooling unitsWhisperkoolWhisperkool slimline ls cooling unitWine cooling systems

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