SKU: 94440143565

WHISPERKOOL Extreme 3500tiR Through-the-Wall Cooling Unit

Sale price$2447.55 Regular price$2719.50
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Ships within 48 hours · Estimated delivery Oct 8 - Oct 13

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Description

WHISPERKOOL Extreme 3500tiR Through-the-Wall Cooling UnitWhisperKOOL Extreme 3500tiR Through the Wall Cooling Unit The Extreme 3500tiR is the precision engineered entry point into the high performance Extreme Series, designed for collectors who require professional grade climate control in a compact format. This through the wall cooling unit offers industrial strength thermal management without the need for an HVAC R technician. Engineered to deliver unwavering performance under the most demanding outdoor


WhisperKOOL Extreme 3500tiR Through-the-Wall Cooling Unit

The Extreme 3500tiR is the precision-engineered entry point into the high-performance Extreme Series, designed for collectors who require professional-grade climate control in a compact format. This through-the-wall cooling unit offers industrial-strength thermal management without the need for an HVAC-R technician. Engineered to deliver unwavering performance under the most demanding outdoor conditions, it ensures that your mid-sized cellar maintains a stable, high-fidelity environment year-round.


Master-Level Engineering & Performance

  • Precision Capacity: Expertly manages environments up to 800 ft³, providing a robust thermal envelope for boutique cellars and curated collections.

  • Variable-Speed Optimization: Integrated variable-speed fans adjust dynamically to cooling loads, maximizing efficiency while significantly reducing system wear.

  • Thermal Resilience: Maintains a powerful 55°F temperature differential, ensuring consistent operation and starting reliability even in extreme external climates.

  • Acoustic Refinement: Utilizing quiet operation technology, the unit maintains noise levels as low as 51 dB, providing a non-intrusive solution for luxury residential spaces.

Technical Specifications

Feature Specification
Cooling Capacity 800 ft³
Temperature Differential 55°F
Noise Level 51 dB (Minimum)
Controller KDT Digital Thermostat (50-ft cable included)
Installation Self-Contained / Through-the-Wall

Architectural Versatility & Mounting

This through-the-wall cooling unit is designed for high adaptability, allowing for seamless integration into complex cellar layouts.

  • Ducting Capability: For increased design flexibility, the unit can be located up to 25 ducted feet from the cellar environment.

  • Remote Digital Monitoring: The KDT Digital Controller includes a 50-foot cable, allowing for convenient temperature management from an external location.

  • Installation Scenarios:

    • Interior Mounting: For interior-to-interior venting, the hot air exhaust can be redirected using a condenser ducting plenum kit.

    • Exterior Mounting: Installations through an exterior wall require the addition of a protective exterior housing to safeguard the chassis.


The Extreme Advantage: The Extreme 3500tiR delivers the high-tensile reliability of a professional system with the streamlined installation of a self-contained unit. It is the definitive through-the-wall cooling unit for maintaining a Master Atelier environment in mid-sized cellars.

Download the WHISPERKOOL Extreme 3500tiR Cooling Unit Owner Manual.

View WHISPERKOOL Extreme 3500tiR Product Specifications.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 94440143565

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★★★★★ 5
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Reviewed in the United States on May 22, 2026
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Jer
Port Orchard, US
★★★★★ 5
So comfortable
Size: 10.5-11.5 Women/9-10 Men, Color: Black
They're so soft to wear! I needed something to wear when it's hot out. These work great and they feel durable! They also clean up easy if i choose to wear them outside. I bought my daughter a pair as well. I think they fit true to the size. I am a size 7-7 1/2 and ordered 7-8.
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Reviewed in the United States on May 6, 2026
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Jennifer Sanders
Fort Morgan, US
★★★★★ 4
Size Up!
Size: 9-10 Women/7.5-8.5 Men, Color: Chocolate, Size: 9-10 Women/7.5-8.5 Men, Color: Chocolate
These are very comfortable! My only issue is that I'm a size 9, so I ordered the womens 9-10 and they are *almost* too small. My heel really wants to come out the back. I know the description says to size up, so you really should lol. They are also narrow, as I have wide feet! I will still wear them, just not if I have to walk too much
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Reviewed in the United States on February 26, 2026
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Lisa
Lake Worth, US
★★★★★ 5
Comfy
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Great slides. I wore them all week on a vacation to the beach. On the beach, walking tours, comfy!!
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Reviewed in the United States on May 24, 2026

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