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WhisperKOOL Extreme 3500tiR Ducted Cooling Unit

SKU U-WKEX3500-115-FD-4

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Original Price $7,283.25
Current Price $6,049.00

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WhisperKOOL Extreme 3500tiR Ducted Cooling Unit Review

In need of a wine cellar cooler that can withstand extreme conditions? Take a look at the WhisperKOOL Extreme 3500tiR Ducted Wine Cellar Cooling Unit!

NOTE: If you plan to install this unit in the attic and use ductwork, please reach out to our sales team for pricing information. The condenser side of the system may not require ducting equipment.

The WhisperKOOL Extreme 3500 tiR Fully-Ducted Wine Cellar Cooling System is an advanced and powerful cooling system that features variable-speed fans for optimal wine cellar conditions. This high-capacity unit is designed for powerful operation, efficiency, and high reliability, so you can trust that your wine collection will always be stored at the perfect temperature. Additionally, this WhisperKOOL wine cooling system is built to last and perform well even in extreme outdoor conditions.

This wine cooler unit can be placed up to 25 ducted feet away from the cellar and comes with duct plenums for the evaporator and condenser. WhisperKOOL Fully Ducted Systems are designed for those who prefer their cooling unit to be out of sight in the cellar. Additionally, it includes a WhisperKOOL thermostat and KDT Plus remote controller which can be mounted up to 50 feet away from the Extreme systems, allowing you to monitor and adjust the temperature of your cellar without needing to enter it. This is the perfect solution for those who want to have control over their wine cellar temperature without compromising the aesthetics.

With both standard and 24V thermostat options available, you can customize this Extreme WhisperKOOL wine cellar cooler to your preferences. The 55°F temperature differential ensures your wine is stored at the ideal temperature, while the quiet operation technology delivers sound levels as low as 51 dB, ensuring that the only thing you hear is the sound of your wine aging to perfection. Don't settle for anything less than the best for your wine collection. Upgrade your cooling system today!

Other sizes: WhisperKOOL Extreme 3500tiR for 800 cu.ft, WhisperKOOL Extreme 5000 tiR Ducted for 1250 cu.ft. wine cellar & WhisperKOOL Extreme 8000 tiR Ducted for 2000 cu.ft wine cellar.

WhisperKOOL Reviews: WhisperKOOL Extreme Series

Scott Marcus from Acampo, CA shared his experience with WhisperKOOL Extreme systems. He needed a reliable wine room cooling unit that would protect his wine collection during the hot summer months. After conducting thorough research, he chose WhisperKOOL Extreme systems to combat high temperatures. The remote control feature also gave him peace of mind as he could monitor his wines even when he was away on vacation.

Want to see more options? Check out our collection of Fully Ducted – Self Contained Wine Cellar Systems. You can also browse all our WhisperKOOL Wine Cellar Cooling Systems.

We also offer a wide selection of unique and modern wine racks. Get the best wine racks from Ultra Wine Racks & Cellars today!

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 WhisperKOOL Extreme 3500tiR Ducted Cooling Unit today and enjoy your amazing wines at their best temperature!



    You'll find the WhisperKOOL thermostat in front of the unit. It has an Advanced System Protection which alerts to notify you if specific parameters aren't met. You can place the thermostat up to 25 feet away from the unit with WhisperKOOL Extreme tiR systems.
    Digital Controller - WhisperKOOL | Wine Coolers Empire - Trusted Dealer
    The WhisperKOOL bottle probe measures the wine's temperature in the cellar with accuracy. As opposed to measuring the ambient cellar air, the liquid temperature measuring probe provides a more precise and accurate reflection of the temperature of the wines stored in the cellar.
    Bottle Probe - WhisperKOOL | Wine Coolers Empire - Trusted Dealer
    You can simply adjust the fan speeds with just a flip of the 3-speed fan switch feature that is built in front of the unit.
    3-Speed Fan Switch - WhisperKOOL | Wine Coolers Empire - Trusted Dealer
    The Extreme systems give you partial and fully-ducted option. The Extreme tiR can use either partial ducting or ducting on both sides, while the Extreme ti allows for partial ducting.
    Ducting Options - WhisperKOOL | Wine Coolers Empire - Trusted Dealer
    Mounting through an exterior wall? The WhisperKOOL exterior grille protects the exhaust side of the system from the outdoor elements when installed through an exterior wall.
    Exterior Grille - WhisperKOOL | Wine Coolers Empire - Trusted Dealer


Please click below to read and download the owner manual for this cooling system.

Please click below to view all product specifications for the Extreme tiR - Fully-Ducted Systems.

A limited 2-year product/5-year compressor warranty is offered with all self-contained cooling units at the date of purchase.

New and advanced 24-volt thermostat conversion kit for WhisperKOOL systems!

Need assistance? Talk to an Expert at +1-888-407-7770 or email: to get the best-suited wine cooling system for your needs.



  • Model:  Extreme 3500tiR Ducted
  • Cellar Size: Approx. 800 cu.ft. when wine cellar is fully insulated and sealed with a proper vapor barrier
  • BTU/h (85°F condenser air intake temperature: 2688
  • Dimensions (L x W x H): 39.5" x 14.25" x 22.5" (with duct plenums)
  • Refrigerant: R-134a
  • Refrigeration Tons: 0.22
  • Weight (lbs): 115
  • HP: 1/4
  • Voltage Rating: 115V (20 amp dedicated circuit required)
  • Amps: 9 (running amps)
  • Duct Size: 8" supply, 8" return (evaporator and condenser)
  • Drain line: 3/8" ID clear plastic tubing (NOT PROVIDED)
  • Installation: Can be installed up to 25 duct feet away from the cellar
  • Thermostat: Advanced digital display (50-ft. cable), liquid-temperature-measuring bottle probe (50-ft. cable)
  • Temp. Delta: Can maintain a 55°F cellar temperature with up to 110°F condenser air intake temperature
  • Ducting Options: Condensing side can be ducted
  • WhisperKOOL Warranty: Two-year limited warranty (parts and labor) |  Five-year limited warranty (compressor)

*NOTE: WhisperKOOL wine cooling units work best in a well-insulated and sealed room with a proper vapor barrier. Every wine cellar is different and has its own cooling needs. It's important to perform heat load calculations before choosing a cooling system for wine cellars.



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.



Powerful Extreme Series

Advanced Controller

Extreme Series Quiet Operation

Extreme tiR Ducted Series Power Option

Durable Finish

Extreme Series Variable Speed Fan

Single Piece Mounting Bracket

"My wine cellar room is higher than 800 cu.ft. What wine cooling system can accommodate a bigger wine cellar room?"

Click here:  👉Extreme 5000tiR Ducted for 1250 cu.ft. wine cellar👈


Introducing our new 24-volt thermostat conversion kit for WhisperKOOL split systems! Utilize industry-leading technology from major manufacturers to monitor the environment of your cellar. 

  • Connect your thermostat to Wi‑Fi to control the temperature from your phone, tablet, or laptop.
  • Monitor run time and energy usage.
  • Set alarm notifications.
  • View your cellar conditions from your mobile device.

*PLEASE NOTE: WhisperKOOL does not provide smart thermostats. If you choose the 24V Thermostat Conversion Kit, you acknowledged that the system will not be built with the standard WhisperKOOL control or liquid measuring bottle probe. You will need to purchase your own 24V smart thermostat to operate the equipment. The WhisperKOOL Customer Satisfaction Team will not provide support for issues related to smart thermostats.

For more information, check out 24V Thermostat Conversion Kit.


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.

Condenser Coil Coating

The Condenser Coil Coating is a protective coating applied to a WhisperKOOL wine cellar cooling system's condenser coil to protect it from salt air. This coating helps to extend the lifespan of the cooling unit, especially in areas near the coast or beach where salt air can be a problem.


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: 

We understand that buying this unit is a significant investment, so we make sure you'll get the right unit for your wine room.

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Contact Us - Wine Coolers Empire

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Is there any Special Discounts for HVAC, Contractors, Designers, and Wine Lovers at Wine Coolers Empire?

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why buy from us

By buying from us you qualify for the full manufacturer warranty, save time and money! We ship directly to your door from the manufacturer's warehouse. Every product is checked for quality assurance and packaged with the utmost care to ensure it arrives in perfect working condition. We ship with only the best carriers including UPS, FedEx, USPS, and trusted freight companies to get your product to you in the fastest time possible. We even offer discounts and gifts with every order just to make your day a little better. Our SATISFACTION GUARANTEE and LOWEST PRICE GUARANTEE let you rest easy knowing you'll be taken care of, no matter what happens.

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Customer Reviews

Based on 4 reviews
Great Product

It is as advertised. I have my house renovated and added a cellar. Not sure which type I need at first just wondering down and asked questions. That's why I am very thankful to your customer support which is very responsive and patient with me. I am very happy with this cooler. Thank you!


I was looking for a quiet cooling unit and saw this one. I checked it out and look at the reviews. Good thing I bought it in this website. They are very friendly and helpful. Also, the website is very easy to use.


It is cool that it doesn't make any noise like what I had before

great product

It didn't take too long to install it. Also, it doesn't take too much space