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Ceiling Mount Series

  • Virtually invisible inside the cellar
  • Flare fittings for easy installation
  • Duramax coils
  • Standard and 24V thermostat options available
  • 2-speed fan switch
  • Hex mesh grille with air filter
  • KDT Digital Controller/Thermostat with 50-ft. cable
  • Offers excellent efficiency by drawing in the warmer air which accumulates at the ceiling, cooling and dispersing the air throughout the environment

At WhisperKOOL, we have created a ceiling-mounted 4000 split system evaporator because we want you to experience KOOL without seeing it. Your wine should be the center of attention, not a cooling unit.

Platinum Split Series

  • Quiet and efficient operation
  • Advanced electronic control system
  • Standard and 24V thermostat options available
  • Condensing unit can be placed outdoors with purchase of exterior housing
  • 55ºF temperature differential between the cellar and condensing unit air intake temperature
  • KDT Digital Controller/Thermostat with 50-ft. cable

The Platinum Split allows you to decide where the evaporator unit and the condensing unit will be located. The condensing unit can be located up to 100 ft. away from the evaporator unit. The evaporator unit will be mounted in the cellar or it can also be located nearby with ducting.

Quantum Series

  • Interchangeable evaporator airflow panels
  • Includes a pump system to remove access condensation
  • Standard and 24V thermostat options available
  • Electro-fin coated coils for protection against outgassing that occurs in cellars
  • Condensing unit can be placed outdoors with purchase of exterior housing

The Quantum Series cooling systems are designed to handle larger and more challenging wine cellars. The Quantum cooling unit is one of the highest-capacity series units that we offer. This split system includes multiple ducting options allowing for ease and flexibility of installation as well as accessibility. The air handler can be ducted up to 25 feet creating a virtually quiet cellar environment.  The evaporator coil is coated with an electro fin coating to minimize corrosion.

Extreme Series

  • Reliable starting and running performance, even under the most extreme outdoor conditions
  • Operates in extreme environments.
  • 55 degree temperature differential.

There are three different versions of our Extreme units:

  • Extreme tiR fully ducted (FD): This product is intended for fully ducted installations. Fully ducted units are for customers who don’t want to see their unit in the cellar. The duct plenums for the evaporator and condenser will be included with your purchase. This unit also comes with a KDT Plus remote controller and thermostat. The controller can be mounted outside the cellar, allowing you to monitor your cellar temperature without needing to enter. The controller can be mounted up to 50 feet away from the Extreme unit.

NOTE: If you are planning to place this unit in the attic and use ducting, please contact our sales team for pricing. You may not need ducting equipment for the condenser side of the system.

  • Extreme tiR Self Contained: This product is intended for through-the-wall installations. It is an “upgrade” to the Extreme ti because it uses the KDT Plus remote controller and thermostat. The duct plenums for the evaporator and condenser can be purchased separately. The controller can be mounted outside the cellar, allowing you to monitor your cellar temperature without needing to enter. The controller can be mounted up to 50 feet away from the Extreme unit.

NOTE: If this unit will be installed through an exterior wall, you will need to purchase an exterior housing to protect the unit. If this unit will be installed through an interior wall, the hot air exhaust may be redirected to another location using the condenser ducting plenum kit.

  • Extreme ti: This product functions in the same way as the tiR and is intended for through-the-wall installation. The difference between the ti and tiR is that the controller and display will be located on the front face of the unit. In order to monitor your cellar conditions, you will need to physically enter your cellar.

Phantom Series

  • Optional UV Lighting technology (Learn More)
  • Numerous ducting options
  • Remote KDT Plus controller/thermostat
  • Corrosion-resistant drip tray
  • Black powder-coated paint scheme
  • Suitable for operation in ambient temperatures as high as 110°F

The Phantom Series combines powerful cooling capacity with flexible installation options. If space is at a premium in your cellar and you need a powerful, fully ducted unit, the Phantom might be for you. The Phantom’s powerful blowers can be reoriented to the right, left, or top of the unit. This grants you the option of installing the unit in any ducting configuration that best suits your needs, even in limited space.

Slimline LS

  • Condensate Evaporator
  • Two-speed fan switch
  • Up to 45% more capacity
  • 2-speed fan switch
  • UV Light System upgrade
  • Customizable front panel
  • Can be mounted in the often-unused space above a door
  • 30°F temperature differential

We are happy to announce the first unit in our new luxury series (LS). The new Self Contained Slimline LS has evolved into a unit that can cool at two capacities at the flip of a switch. We have added centrifugal blowers, which are significantly quieter and can also be set at a medium or low speed, larger coils for greater system capacity, and an improved condensate management system. The controller has been moved to the condenser side of the unit for easier access.

SC PRO Series

  • Advanced blower fans
  • Condensate management system
  • Smart refrigerant metering
  • Liquid-temperature-measuring bottle probe 
  • Advanced digital controller 
  • Coated evaporator coil 
  • Front or rear power switch 
  • Single-piece mounting bracket 

The SC PRO Series embodies the latest and greatest system design technologies in an all-new housing design. Developed upon feedback directly from customers and installers, the unit incorporates a variety of high-end components at an affordable price point. By combining powerful airflow with quiet operation technology, the SC PRO 4000 is unrivaled when it comes to efficiently cooling small to mid-sized wine cellars.

SC PRO 8000

24V Thermostat Conversion Kit

  • Currently available for Extreme tiR, Phantom, Mini Ceiling Mount & Ceiling Mount, and fully-ducted Platinum Split units
  • Convert your existing WhisperKOOL cooling unit with a standard controller to a unit controlled by the 24-volt thermostat of your choice
  • Plug-and-play design makes installation a breeze
  • As with previous iterations of the 24-volt thermostat conversion kit, you can tap into industry-leading smart thermostat technology from Nest, Ecobee, or Honeywell
  • Monitor the temperature of your cellar from afar, set alarm notifications, and monitor energy usage and runtimes

Previously available only as an add-on at the time of purchase, WhisperKOOL’s 24-volt thermostat conversion kit is now available as an aftermarket option. Like WhisperKOOL’s previous thermostat conversion kits, the all-new in-field 24V thermostat conversion kit allows you to utilize industry-leading thermostat technology in your wine cellar.

*24-volt thermostats not included with purchase of 24-volt thermostat conversion kit.

*24-volt thermostat must be placed inside wine cellar, preferably in a central location away from direct airflow.

UVGI Lighting System

  • Available on Phantom & Slimline LS Systems
  • Prevents mold growth within the system
  • Reduces air-borne pathogens and allergen levels
  • Reduces unpleasant smells within the cellar
  • Maintains an overall healthier cellar environment.

Ultraviolet Germicidal Irradiation (UVGI) is a disinfection method that uses short-wavelength ultraviolet (UV-C) light to kill microorganisms such as fungus, mold, mildew, and bacteria. The application of UVGI to disinfection has been an accepted practice since the 1950s and is used in a variety of applications such as food, air, and water purification. In recent years, UVGI has found renewed application in air purifiers.


SC Duct Kits

This ducting kit is designed to relocate unwanted heat from the exhaust of the SCPRO / SCi Series.

Small Ducting Kit

  • Compatible models:
    • SCPRO / SCi 2000, 3000, 4000

Kit includes: Duct Plenum, Transition with integrated heat sensor, 10″ In-line fan with transitions to 8″, 8″ Adjustable Elbow

Large Ducting Kit

  • Compatible models:
    • SCPRO / SCi 8000

Kit includes: Duct Plenum, Transition with integrated heat sensor, 10″ In-line fan with transitions to 8″, 8″ Adjustable Elbow

Extreme Exterior Grille

Compatible models:

    • Extremeti 3500, 5000, 8000

The Exterior Grille protects the exhaust side of the system from the weather elements when installed through an exterior wall.

Extreme TiR Filters


    • Extreme 3500tiR or 5000tiR – 11 ¾ x 9 x 1
    • Extreme 8000tiR – 11 ¾ x 13 ½ x 1

These easy-to-install filters are used with the Extreme 3500, 5000, and 8000 tiR systems. WhisperKOOL recommends replacing your filters at least once every three months to ensure system longevity, better air quality, and more efficient cooling. Note: Filters are only compatible with ducted models of Extreme 3500, 5000 and 8000.

Extreme Duct Plenums

Compatible models:

    • Extreme 3500ti, 5000ti, and 8000ti

Sizes available for the Extreme 3500ti, 5000ti, and 8000ti. This plenum allows either side of the unit to be ducted. Duct the cold air through a vent into the cellar, duct the hot exhaust air out of the home. This plenum allows for total installation flexibility.

Exterior Condenser Housing

  • Galvanized Steel Base
  • Galvanized Steel Cabinet Embossed — 20 GA
  • Hinged Access for Easier Servicing
  • Wind Safety Latch — See Insert
  • Shipped Knocked Down for Convenient Warehousing
  • Easily Assembled in the Shop or on the Job
  • All Front Louver are at a 45° degree Angle
  • Rain Trough Under Hinge to catch moisture that might seep through the hinge
  • Necessary Fasteners Provided

Our exterior condenser housing protects the condenser portion of the split system from the elements when installed outdoors. Exterior Condenser Housing is used with the Platinum Mini Split, Ductless Platinum Split, and Ducted Platinum Split cooling units.

Condensate Pump

  • Fully Automatic with 3 Drain Holes
  • 1/2 gallon leakproof, rustproof, high impact ABS tank
  • Removable 3/8″ barbed check valve
  • New generation float arm for enhanced reliability
  • Thermal overload protection
  • Suitable for High-Efficiency, Gas-Furnace Condensate
  • ABS plastic motor and tank cover, volute, and Polypropylene Impeller
  • Stainless steel shaft, Snap-action switch, and Easy installation
  • UL & CSA listed

The condensate pump kit is designed as an automatic condensate removal pump for water dripping out of our cooling units’ drain line. The pump is controlled by a float/switch mechanism that turns the pump on when approximately 2-1/4” of water collects in the tank and automatically switches off when the tank drains to approximately 1-1/4”. The condensate pump kit allows the excess condensate to be pumped up to 20ft away from the unit.

ThruWall Room to Room Fan™

  • Operates quietly and efficiently for year round comfort
  • 10′ long power cord
  • 2 speeds: 160 CFM on low and 200 CFM on high speed
  • The ThruWall’s telescoping housing installs in frame walls from 3½” to 6½” thick
  • Hole Diameter: 8 inches
  • Grille Diameter 9 3/4 inches
  • dBA – High-55 Low-49
  • Weight 5 lbs
  • Amps .75
  • Easy to install

The ThruWall™ Room to Room Fan balances temperatures in adjoining rooms by transferring warm air out of exhaust room quietly and efficiently. Simple to install in any frame wall from 3-1/2″ to 6-3/4″ thick. A high quality Thermally Protected motor with balanced fan blade moves up to 200 CFM. Move heated or cooled air between rooms.

Cold Weather Start Kit

  • Designed exclusively for split systems installed in extremely cold environments
  • Comes standard in all split systems manufactured
  • Enables WhisperKOOL units to operate in environments as cold as -20°F
  • Available as an accessory option to customers who purchased a WhsiperKOOL split system before February 1, 2019

When outside temperatures drop, the pressure in the system drops as well. This presents a challenge, because our systems operate using a pump down cycle and use a low-pressure switch to turn the compressor on and o. However, when the temperature drops below 20°F, the pressure in the system is too low to start the compressor. The cold weather start kit bypasses the low-pressure switch on startup and uses heaters installed on the receiver to raise the pressure and allow the system to start.

PDT Plus Thermostat

• Replaces the XLT Black XLT Bronze QT Cabinet Split Systems

Introducing the new PDT plus controller for use as a replacement for existing products in the field. In order to accommodate the new controller, we have enlarged the housing.  The new housing is the same height and width, but is less then an inch deeper.

The controller utilizes the liquid measuring probe and defrost cycling feature.

SC Exterior Housing Grille

    Compatible models:

      • SCPRO / SCi – 2000, 3000, 4000, 8000

The Exterior Grille protects the exhaust side of the system from the weather elements when installed through an exterior wall.

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