Loading... Please wait...

Extreme 3500ti

  • Image 1
  • Image 2
  • Image 3

Product Video

Product Description

The Extreme 3500ti introduces variable speed fans to WhisperKOOL’s most advanced and powerful self-contained cooling system. Utilizing variable speed fans this high capacity unit can maintain optimal cellar condi- tions while operating at a quiet 57 decibels. The Extreme is designed to fit between standard wall studs for simple “through-the-wall” installation with minimum modification to existing wall structures. Extremes are acceptable for mounting through an exterior wall and can operate in a 110°F exhaust environment. The ti Series includes our most advanced controller utilizing Advanced System Protection Technology. This features a series of strategically placed monitoring probes, which ensure efficient performance and long cooling unit life. This system is designed to maintain 55°F in a cellar up to 800 cubic feet in size. 

System Features:

NewBTUh Rating:
There are circumstances in which a cellar design may require a larger unit due to existing restrictions. Building materials such as glass, stone, concrete, etc. do not offer the insulation capacity required to maintain the optimal cellar environment. We recommend purchasing a unit with a larger capacity to compensate for design limitations. * Please utilize our Cellar Wizard in order to ensure you are selecting the proper cooling unit for your application. Undersized cooling units can lead to premature failure and/or prevent the system from reaching the desired set temperature. As a result, they are not covered under warranty.


Option Details

  • The Exterior Grille protects the exhaust side of the system from the weather elements when installed through an exterior wall.
  • The Exhaust Plenum allows the warm exhaust air to be ducted to another area. Ideal if the room adjacent to your cellar is not ideal for warm air to be exhausted into. This also allows you to duct the condenser supply air from an alternate location.


Cellar Size:
800 cu. ft. (Each wine cellar is unique and has specific cooling requirements . Heat load calculations should always be performed prior to selecting a cooling unit.)
BTUh @ 85°F:
28”L x 14.25”W x 15.75”H
115 lbs.
Refrigeration Tons:
Voltage Rating:
115V (20 amp dedicated circuit required); 230V (subject to availability)
9 (running amps)
Drain Line:
1/2” ID clear plastic tubing (not provided)
Advanced digital display, liquid-temperature-measuring bottle probe (50ft. cable)
Temp. Delta:
Can maintain a 55°F cellar temperature with up to 110°F condenser air intake temperature
Outside Venting:
Can be done if the outside temperature does not exceed 110°F, the external grille cover is highly recommended.
Ducting Options:
Condensing side can be ducted.
2-year limited warranty (parts and labor)
5-year limited warranty (compressor)

Warranty Information

Two-year limited warranty (parts and labor) / five-year limited warranty (compressor) Full Warranty Info

Write your own product review

Product Reviews

  1. Superior upgrade 5 Star Review

    Posted by on Mar 20th 2016

    Have been using the Whisper cool 3000 for 15yrs. The 3500 is a much better engineered product and believe it does a far more efficient job of keeping our wines in a proper environment.

  2. No Issues. Works wonderfully. 5 Star Review

    Posted by on Aug 10th 2014

    This is a quiet unit. It functions flawlessly. It looks attractive.

  3. So far we love it! 5 Star Review

    Posted by on Aug 29th 2013

    Had one of the less expensive units but vented outside it just couldn't perform in SoCal hot summers. This one seemed to do the trick with relative ease. Pretty easy to install and looks nice on both sides!

Related Products