WhisperKOOL Slimline LS Cooling Unit
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WhisperKOOL Slimline LS Cooling Unit Review
Introducing the new Slimline LS with smart ECM condenser fans—designed for powerful performance, quiet operation, and long-lasting protection for your wine collection.
NOTE: WhisperKOOL Slimline LS is a direct replacement for WhisperKOOL Slimline 2500 and WhisperKOOL Slimline 3300.
We are excited to announce the newest and first model from the Luxury Series of WhisperKOOL Wine Cellar Cooling Units, the WhisperKOOL Slimline LS Cooling Unit.
The WhisperKOOL Slimline LS is a through-the-wall cellar wine cooling unit (self-contained), specifically designed to fit into the often unused space between the cellar door and the ceiling. This allows the unit to fit snugly above the cellar door, providing efficient cooling without taking up much space and having a low visual profile. WhisperKOOL Slimline LS Wine Cooler Unit can accommodate approximately 300 cu.ft. (low fan speed) and 650 cu.ft. (medium fan speed) cellar size. It’s one of the quietest wine cellar cooling units we have!
This wine room cooling unit can cool at two capacities with the flip of a switch, and features advanced technologies such as a smart condenser ECM fan for efficient heat dissipation, centrifugal blowers for a significantly quieter operation, and adjustable medium or low speed, larger coils for larger system capacity, and an improved condensate management system. To make maintenance and adjustments even more convenient, the controller has been relocated to the condenser side of the unit.
We provide an upgrade option of UV-C Lighting System to protect your WhisperKOOL Wine Cooling Systems from bacteria and mold growth. We also offer an interchangeable decorative grille that can be used to personalize the appearance of your luxury system.
Do you have a different size wine cellar? Or just want to check your options? You can browse our other Self Contained Through-The-Wall Wine Cooling Units. You can also see all our WhisperKOOL Wine Cellar Cooling Systems.
Looking for the best wine racks? Check out Ultra Wine Racks & Cellars for unique and modern wine racks for your wine cellar!
WHY BUY FROM US: Wine Coolers Empire is a trusted dealer of specialty wine cellar air conditioners, commercial wine cellar refrigeration units, and residential wine cellar coolers. More WhisperKOOL wine cellar cooling unit reviews can be found on our Customer Reviews page.
Contact us for any questions or concerns. For information on order processing, shipping options, and delivery times, please visit our Shipping Policy.
Buy the WhisperKOOL Slimline LS Cooling Unit today and enjoy your amazing wines at their best temperature!
Key Features
Features:
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DIGITAL CONTROLLER
The WhisperKOOL thermostat found on the front of the device comes with a feature called Advanced System Protection which includes alarms to notify you if certain conditions are not met.
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SIDE COMPONENTS
WhisperKOOL bottle probe port and fan switch can be accessed from the side panel. The unit is powered by a standard electrical outlet.
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NEW INTERNAL PARTS
New internal components are added such as the improved condensate management system, robust centrifugal blowers, and larger coils for greater system capacity.
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AIR PURIFICATION SYSTEM
WhisperKOOL cooling units are protected from mold and bacterial growth by adding UV-C Light Technology. This will improve the quality of the air within the cellar.
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TWO CAPACITIES
You can adjust the fan speed on the side of the device to change the capacity rating with the flip of a switch.
- ECM CONDENSER FAN
Smart ECM Fan Technology ensures optimal system efficiency and longevity by employing self-regulating condenser fans to control environmental conditions.

Manuals
Manuals:
Please click below to read and download the owner manual for this cooling system.
Please click below to view all product specifications for the WhisperKOOL Slimline LS cooling systems.
A limited two-year limited warranty (parts and labor) / Five-year limited warranty (compressor) is offered with all split systems.
Need assistance? Talk to an Expert at +1-888-407-7770 or email: support@winecoolersempire.com to get the best-suited wine cooling system for your needs.
Specifications
Specifications:
- Fan Speed: Low, Medium
- Cellar Size: 300 cu ft, 650 cu ft
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BTU/h (60°F condenser air intake temperature):
Low Fan: 2601 total, 1961 sensible
Medium Fan: 3032 total, 2413 sensible -
BTU/h (75°F condenser air intake temperature):
Low Fan: 2635 total, 1951 sensible
Medium Fan: 2904 total, 2309 sensible -
BTU/h (85°F condenser air intake temperature):
Low Fan: 2396 total, 1870 sensible
Medium Fan: 2612 total, 2158 sensible -
BTU/h (95°F condenser air intake temperature):
Low Fan: 2205 total, 1704 sensible
Medium Fan: 2392 total, 2008 sensible -
CFM:
Low Fan: 81
Medium Fan: 111 - Dimensions: 21.5 in L x 22.16 in W x 10.33 in H
- Refrigerant: R-134a
- Horsepower: 1/5 HP
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Voltage Rating:
115V (20 amp dedicated circuit required)
230V (subject to availability) -
Weight:
81 lbs without packaging
90 lbs with packaging - Amps: 4.3 running amps
- Drain Line: 1/2 in ID clear plastic tubing (not provided)
- Installation: Through the wall, ideally above a doorway
- Thermostat: Advanced digital display, liquid-temperature-measuring bottle probe with retractable cable
- Temperature Delta: Can maintain a 55°F cellar temperature with up to 85°F condenser air intake temperature
- WhisperKOOL Warranty: Two-year limited warranty (parts and labor) / Five-year limited warranty (compressor) is offered with all self-contained cooling units at the date of purchase.
BTU/h
BTU/h
1704 - 2413
The BTU/h value range shown here is an estimate and not a guarantee. There may be instances where a cellar design requires a larger unit due to variables not included in the calculation. These variables can be building materials (such as glass, stone, concrete, etc.) that do not provide enough insulation to maintain the ideal wine cellar environment.
We recommend purchasing a unit with a higher capacity to compensate for these unforeseen variables. Choosing an undersized unit may result in premature failure and may not be able to achieve your desired wine cellar temperature.
Optional Accessories
WhisperKOOL Accessories (Optional)
You may add WhisperKOOL replacement parts and accessories to enhance the performance and longevity of your wine cooling systems. These add-ons include items that upgrade and protect the system. Check out the other WhisperKOOL Parts & Accessories.
UV-C Light Technology
Adding UV-C Light Technology to WhisperKOOL wine cellar coolers enhances the overall indoor air quality inside the wine cellar and improves the system's performance. The UV-C light bulb inside the cooling system will protect it from mold and bacterial growth, extending the lifespan of the unit.
ThruWall™ Room to Room Fan
The ThruWall™ Room to Room Fan is designed to work seamlessly with WhisperKOOL Through-the-Wall Wine Cooling Units. It operates quietly and effectively moves heat from one room to another to balance the temperature between adjacent rooms.
Read more to LEARN MORE! 📚
Welcome to our Special Section,
Here we've gathered all of the related articles in the hopes of assisting you in knowing the PERFECT MATCH for your Wine Cellar.
Here are Top-Rated Articles:
10 Best Wine Cellar Cooling Units
Best Wine Cellar Cooling Unit for Beginners
Best Wine Cellar Cooling System for Small Cellars
UV-C Light Technology for Wine Cellar Cooling Units
WhisperKOOL Slimline LS Cooling Unit: Product Review
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We purchase a wine cellar in other store. We put the cooling unit in our wine cellar room. However, it didn't perform as well as we wanted to so we decided to look for an alternative. We discovered this store and placed a cooling unit. It works really well for us!
I am very happy with my purchase. I would recommend Whisperkool to everyone who is looking to keep their wine cellar at a certain temperature.
I am very happy we bought this Whisperkool Wine Cooling Unit. We are even considering buying another one for our restaurant. Thanks again Wine Coolers Empire.
Great unit
My husband installed it last week. It was hard to carry it and we still needed help installing it. Good thing the delivery guy was very nice. He helped us carrying it inside and to position it inside our wine cellar. I know he wasn't supposed to help us but he did. We really appreciate it.
Very easy to install. The instructions are straight forward. Lisa was very kind and knowledgeable. She also answered all my queries very patiently