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 Aug 6 - Aug 11

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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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CJ
Charlottesville, US
★★★★★ 5
Great style and comfort
This is a fantastic sweatshirt! Made from a high quality fabric this shirt doesn't even feel like what you think of when you think "sweatshirt". It has a sophisticated design pattern and a great style perfect for golf or even to wear to the office in a casual tech company. My husband has done so and got many compliments and requests to tell him where he got it! It is true to size, with a cut that fits a variety of body sizes perfectly. It is very flattering, comfortable, and soft. It just looks great. It washes easily, stains do not set and neither do wrinkles. I intend to buy more of these in other colors.
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Reviewed in the United States on January 12, 2026
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Reesy07
West Palm Beach, US
★★★★★ 5
Excellent Midlayer for Golf
Color: Light Brown Heather, Size: X-Large
My dad has been wearing this M MAELREG hoodie for about a week now, specifically during my early morning golf rounds where the temperature sits in the low 50s. The fit is true to size with an "athletic" cut, meaning it’s tapered enough to look sharp but has enough stretch and light enough to allow for a full shoulder turn during a golf swing. The cost is also a lot lower than some of the tech golf shirts out there. Overall this is a great shirt for golfing with an expensive look.
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Reviewed in the United States on January 14, 2026
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Verified Purchase
Amazon Customer
Lowell, US
★★★★★ 4
Good not great
Color: Blue Heather, Size: XX-Large
Good hoodie. Don’t know if it’s worth the price. Would feel better if it was $10 cheaper
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Reviewed in the United States on January 5, 2026
M
Meigs County Mama
Port Orchard, US
★★★★★ 5
Comfortable and casual enough for daily wear but still looks like you put thought into your look
Color: Grey Heather, Size: 3X-Large
Got this for my husband and was so pleased with the quality and fit. He wears it on top of his tee shirt and says it's one of the most comfortable hoodie he's worn. It's not too thick, but very warm. Great value as he wears it daily. Love the casual style while still looking put together.
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Reviewed in the United States on January 4, 2026
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Verified Purchase
Robert S
Phoenix, US
★★★★★ 5
Highly recommend
Big fan, have purchased multiple
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Reviewed in the United States on April 1, 2026

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