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WhisperKOOL Extreme 3500tiR Self-Contained Cooling Unit (w/ Remote)
is backordered and will ship as soon as it is back in stock.
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Estimated Delivery in 3-7 business days
WhisperKOOL Extreme Series • Self-Contained Wine Cellar Cooling System
WhisperKOOL Extreme 3500tiR Self-Contained Cooling Unit with Remote Controller
The WhisperKOOL Extreme 3500tiR is a through-the-wall self-contained wine cellar cooling system designed for properly insulated wine cellars up to approximately 800 cubic feet. Built for demanding environments, this unit can maintain ideal wine storage conditions with condenser air intake temperatures up to 110°F.
Designed for wine cellars up to 800 cu. ft.
Through-the-wall self-contained installation
Remote KDT Plus controller included
Operates in condenser intake temperatures up to 110°F
Optional ducting capability up to 25 ducted feet
Free Wine Coolers Empire cellar design assistance available
The WhisperKOOL Extreme 3500tiR is engineered for wine collectors, homeowners, builders, and cellar professionals who need reliable through-the-wall cooling for a dedicated wine cellar. Its self-contained design allows the evaporator and condenser to be housed in one system, simplifying installation compared with split-system refrigeration.
The included remote KDT Plus controller allows users to monitor and adjust cellar temperature from outside the wine room. This makes the 3500tiR a strong choice for finished residential cellars where convenient control access matters.
For best performance, the cellar must be properly insulated, sealed, and protected with a vapor barrier. Every cellar has different heat-load requirements, especially when glass, stone, concrete, exterior walls, or high ambient temperatures are involved.
Quick Product Summary
Product Type
Self-Contained Through-the-Wall Wine Cellar Cooling Unit
Model
WhisperKOOL Extreme 3500tiR
Recommended Cellar Size
Up to approx. 800 cu. ft. when properly insulated and sealed
BTU/h
2688 BTU/h at 85°F condenser air intake temperature
Installation Type
Through-the-wall; optional ducting available
Remote Controller
Included KDT Plus remote controller with 50 ft. cable
Maximum Condenser Air Intake Temperature
Up to 110°F
Voltage
115V; 20 amp dedicated circuit required
Warranty
2-year limited parts and labor warranty; 5-year limited compressor warranty
Best For
Dedicated residential wine cellars up to 800 cu. ft.
Homeowners who want through-the-wall installation
Wine collectors in warmer climates
Cellars requiring remote temperature control access
Retrofit and remodel wine room projects
Builders and designers planning compact to mid-size wine cellars
Not Recommended For
Uninsulated rooms or garages
Wine rooms without a vapor barrier
Open-concept wine displays
Glass-heavy cellars without heat-load calculations
Commercial wine storage rooms
Cellars larger than the recommended cooling capacity
Key Features
Remote KDT Plus Controller
The tiR version includes a remote digital controller that can be mounted outside the wine cellar for convenient monitoring and temperature adjustment.
Liquid Temperature Bottle Probe
The bottle probe measures liquid temperature instead of only ambient air temperature, helping the system respond more accurately to the actual wine storage environment.
Three-Speed Fan Switch
The built-in fan speed switch allows airflow adjustment based on cellar conditions and installation needs.
Exterior Grille Option
For exterior wall installations, the optional grille helps protect the exhaust side of the cooling system from outdoor elements.
High Ambient Performance
Designed for condenser air intake temperatures up to 110°F when the cellar is properly built, sized, and installed.
Optional Ducting
Compatible ducting components allow installation flexibility up to 25 ducted feet away from the cellar.
Advantages and Limitations
Advantages
Important Limitations
Self-contained design simplifies installation compared with split refrigeration systems.
Performance depends on proper cellar insulation, sealing, and vapor barrier construction.
Remote controller allows temperature access outside the cellar.
Exterior wall installations require an exterior grille for protection.
Can operate with condenser air intake temperatures up to 110°F.
Oversized, glass-heavy, or high-heat-load rooms may require a larger system.
Optional ducting gives more installation flexibility.
Ducting plenums are sold separately.
Bottle probe improves wine temperature accuracy.
Drain line tubing is required but not included.
Installation Requirements
The WhisperKOOL Extreme 3500tiR is designed for through-the-wall installation and does not typically require an HVAC-R technician. However, proper cellar construction is essential for reliable performance.
Insulation
Required. Poor insulation can reduce cooling performance and shorten system life.
Vapor Barrier
Required for proper wine cellar construction and humidity control.
Electrical
115V; 20 amp dedicated circuit required.
Drain Line
1/2" ID clear plastic tubing required; not included.
Exterior Wall Installation
Exterior grille required to protect the exhaust side from outdoor elements.
Interior Wall Installation
Condenser ducting plenum may be required to redirect hot exhaust air.
Ducting Distance
Unit can be installed up to 25 ducted feet away from the cellar with compatible ducting components.
Important sizing note: The 800 cu. ft. capacity assumes the cellar is fully insulated, sealed, and built with a proper vapor barrier. Heat-load calculations are recommended before choosing any wine cellar cooling system.
What Is the Difference Between WhisperKOOL Extreme ti and tiR?
The WhisperKOOL Extreme ti and tiR models are both self-contained through-the-wall wine cellar cooling systems. The main difference is controller placement.
Model Type
Controller Location
Best For
Extreme ti
Front-facing control panel on the unit
Installations where cellar-side control access is acceptable
Extreme tiR
Remote KDT Plus controller
Installations where users want to monitor and adjust temperature outside the cellar
Technical Specifications
Model
Extreme 3500tiR
Cellar Size
Approx. 800 cu. ft. when fully insulated and sealed with a proper vapor barrier
BTU/h
2688 BTU/h at 85°F condenser air intake temperature
Dimensions
28" L x 14.25" W x 15.75" H
Refrigerant
R-134a
Weight
115 lbs
Horsepower
1/4 HP
Voltage Rating
115V; 20 amp dedicated circuit required
Running Amps
9 amps
Drain Line
1/2" ID clear plastic tubing required; not provided
Installation Distance
Can be installed up to 25 ducted feet away from the cellar with compatible ducting components
Thermostat
Advanced digital display with 50 ft. cable
Bottle Probe
Liquid-temperature-measuring bottle probe with 50 ft. cable
Temperature Differential
Can maintain 55°F cellar temperature with condenser air intake temperature up to 110°F
Ducting Options
Condensing side can be ducted; evaporator ducting options available with compatible accessories
Warranty
2-year limited parts and labor warranty; 5-year limited compressor warranty
BTU/h Sizing Note
The BTU/h value shown is an estimate and not a guarantee. Cellar construction variables such as glass, stone, concrete, direct sunlight, poor insulation, or missing vapor barrier protection can require a larger cooling unit.
Choosing an undersized unit may prevent the cellar from reaching the desired temperature and may contribute to premature system failure.
The optional 24V Thermostat Conversion Kit allows compatible WhisperKOOL systems to be used with select 24V thermostat setups.
Allows connection to compatible 24V thermostat technology.
Can support Wi-Fi thermostat control when paired with a compatible third-party thermostat.
May allow remote monitoring from a phone, tablet, or laptop depending on thermostat selection.
Can support alarm notifications and usage monitoring depending on thermostat features.
Important: WhisperKOOL does not provide smart thermostats. If you choose the 24V Thermostat Conversion Kit, the system will not be built with the standard WhisperKOOL control or liquid measuring bottle probe. You must purchase your own compatible 24V smart thermostat. WhisperKOOL support does not cover third-party thermostat issues.
Recommended Accessories
WhisperKOOL Extreme Exterior Grille
Required for exterior wall installations, the exterior grille helps protect the exhaust side of the cooling system from outdoor elements.
Wine Coolers Empire is a trusted source for residential wine cellar coolers, specialty wine cellar air conditioners, and commercial wine cellar refrigeration equipment. Our team helps customers compare cooling systems, review installation requirements, and choose appropriately sized equipment for their wine cellar projects.
Read customer feedback on our Customer Reviews page, or contact our team with questions before purchasing.
Wine Coolers Empire Expert Recommendation
We recommend the WhisperKOOL Extreme 3500tiR for homeowners and wine collectors building a dedicated wine cellar up to approximately 800 cubic feet who want a self-contained through-the-wall system with remote temperature control.
Before purchasing, confirm that the cellar is properly insulated, sealed, and protected with a vapor barrier. If your cellar includes glass walls, exterior walls, unusual building materials, or high ambient temperatures, we recommend requesting sizing support before selecting a unit.
Need Help Choosing the Right Wine Cellar Cooling System?
Our team can help review your cellar size, insulation, vapor barrier requirements, cooling capacity, rack layout, and product options before you buy.
It’s rated for a wine cellar of approximately 800 cubic feet, assuming proper insulation and a sealed vapor barrier.
It delivers about 2,688 BTU/h at 85°F condenser air intake.
You can install it through the wall, and it supports ducting: the condensing side can be ducted, allowing up to 25 feet of ducting.
It runs on 115 V and requires a dedicated 20-amp circuit.
It features a remote digital display with a 50-ft cable and a liquid-temperature bottle probe to read the actual wine temperature.
It uses a 1/2″ ID drain line (clear tubing) to manage condensate.
It operates with R‑134a refrigerant, and it supports a 55°F temperature differential, meaning it can maintain a 55°F cellar even if condenser intake air goes up to 110°F."]
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I have used this cooling system for over a year - it is great!
J
James B.
I use this product every day to keep my wine bottles chilled at the right temperature. I like the digital thermostat as well as the digital humidity gauge. It's pretty quiet and easy to maintain. The automatic timer is very convenient, too.
E
Elisabeth K.
Excellent customer service
I have to admit that I was a little concerned about buying a wine cooler online but this company is amazing. With their great prices they also offer top notch service. They went above and beyond what I was expecting. I had a question and they got right back to me.
M
Mary S.
Best Buy
I have been a wine enthusiast for as long as I can remember. The only problem I always faced is that every time I drink wine, it lost its taste after two days. It's because of my lack of knowledge about wine cellars. It was last year when I visited a friend's house and he had an amazing collection of wines. He told me that he stores the wine in the cellar that is temperature-controlled by Whisperkool 3500tir . I was really surprised to know so I purchase my own 3500tir wine cooling unit in Wine Coolers Empire. Their reps are friendly. Thumbs up!
J
Jerry L.
Quality wine cooling unit
I've been using this unit for about 2 months now, I can't believe how easy it is to use, and how quiet it runs. The remote control makes it much easier than fiddling around with the front panel. I can't believe I waited this long to get myself a wine cooler.
C
Christine C.
Excellent reps
I just want to say thanks for the help you gave me on my home wine cellar. I am a newbie and I don't know much about wine coolers. You were very helpful and answered all my questions.
H
Heather C.
100% SATISFIED
I am very satisfied with this wine cooler. It has a very elegant design and works great. It is easy to install, quiet and the temp settings are accurate. I would certainly recommend this product to anyone looking for a wine cooling unit. Order your wine cooling unit in Wine Coolers Empire, their reps are so accommodating!
M
Mary
Amazing customer service. Lisa was so patient with me and answered all my questions. Thank you!
P
Paul Claude
Everything was as advertised. Description was straightforward. Very informative and the images are the same as the real thing. Manuals included are very helpful as well.
N
Nathan
I like the remote because we installed it in a bit of a high location
WhisperKOOL
WhisperKOOL Extreme 3500tiR Self-Contained Cooling Unit (w/ Remote)
Regular price$5,959.00
Unit price
WhisperKOOL Extreme Series • Self-Contained Wine Cellar Cooling System
WhisperKOOL Extreme 3500tiR Self-Contained Cooling Unit with Remote Controller
The WhisperKOOL Extreme 3500tiR is a through-the-wall self-contained wine cellar cooling system designed for properly insulated wine cellars up to approximately 800 cubic feet. Built for demanding environments, this unit can maintain ideal wine storage conditions with condenser air intake temperatures up to 110°F.
Designed for wine cellars up to 800 cu. ft.
Through-the-wall self-contained installation
Remote KDT Plus controller included
Operates in condenser intake temperatures up to 110°F
Optional ducting capability up to 25 ducted feet
Free Wine Coolers Empire cellar design assistance available
The WhisperKOOL Extreme 3500tiR is engineered for wine collectors, homeowners, builders, and cellar professionals who need reliable through-the-wall cooling for a dedicated wine cellar. Its self-contained design allows the evaporator and condenser to be housed in one system, simplifying installation compared with split-system refrigeration.
The included remote KDT Plus controller allows users to monitor and adjust cellar temperature from outside the wine room. This makes the 3500tiR a strong choice for finished residential cellars where convenient control access matters.
For best performance, the cellar must be properly insulated, sealed, and protected with a vapor barrier. Every cellar has different heat-load requirements, especially when glass, stone, concrete, exterior walls, or high ambient temperatures are involved.
Quick Product Summary
Product Type
Self-Contained Through-the-Wall Wine Cellar Cooling Unit
Model
WhisperKOOL Extreme 3500tiR
Recommended Cellar Size
Up to approx. 800 cu. ft. when properly insulated and sealed
BTU/h
2688 BTU/h at 85°F condenser air intake temperature
Installation Type
Through-the-wall; optional ducting available
Remote Controller
Included KDT Plus remote controller with 50 ft. cable
Maximum Condenser Air Intake Temperature
Up to 110°F
Voltage
115V; 20 amp dedicated circuit required
Warranty
2-year limited parts and labor warranty; 5-year limited compressor warranty
Best For
Dedicated residential wine cellars up to 800 cu. ft.
Homeowners who want through-the-wall installation
Wine collectors in warmer climates
Cellars requiring remote temperature control access
Retrofit and remodel wine room projects
Builders and designers planning compact to mid-size wine cellars
Not Recommended For
Uninsulated rooms or garages
Wine rooms without a vapor barrier
Open-concept wine displays
Glass-heavy cellars without heat-load calculations
Commercial wine storage rooms
Cellars larger than the recommended cooling capacity
Key Features
Remote KDT Plus Controller
The tiR version includes a remote digital controller that can be mounted outside the wine cellar for convenient monitoring and temperature adjustment.
Liquid Temperature Bottle Probe
The bottle probe measures liquid temperature instead of only ambient air temperature, helping the system respond more accurately to the actual wine storage environment.
Three-Speed Fan Switch
The built-in fan speed switch allows airflow adjustment based on cellar conditions and installation needs.
Exterior Grille Option
For exterior wall installations, the optional grille helps protect the exhaust side of the cooling system from outdoor elements.
High Ambient Performance
Designed for condenser air intake temperatures up to 110°F when the cellar is properly built, sized, and installed.
Optional Ducting
Compatible ducting components allow installation flexibility up to 25 ducted feet away from the cellar.
Advantages and Limitations
Advantages
Important Limitations
Self-contained design simplifies installation compared with split refrigeration systems.
Performance depends on proper cellar insulation, sealing, and vapor barrier construction.
Remote controller allows temperature access outside the cellar.
Exterior wall installations require an exterior grille for protection.
Can operate with condenser air intake temperatures up to 110°F.
Oversized, glass-heavy, or high-heat-load rooms may require a larger system.
Optional ducting gives more installation flexibility.
Ducting plenums are sold separately.
Bottle probe improves wine temperature accuracy.
Drain line tubing is required but not included.
Installation Requirements
The WhisperKOOL Extreme 3500tiR is designed for through-the-wall installation and does not typically require an HVAC-R technician. However, proper cellar construction is essential for reliable performance.
Insulation
Required. Poor insulation can reduce cooling performance and shorten system life.
Vapor Barrier
Required for proper wine cellar construction and humidity control.
Electrical
115V; 20 amp dedicated circuit required.
Drain Line
1/2" ID clear plastic tubing required; not included.
Exterior Wall Installation
Exterior grille required to protect the exhaust side from outdoor elements.
Interior Wall Installation
Condenser ducting plenum may be required to redirect hot exhaust air.
Ducting Distance
Unit can be installed up to 25 ducted feet away from the cellar with compatible ducting components.
Important sizing note: The 800 cu. ft. capacity assumes the cellar is fully insulated, sealed, and built with a proper vapor barrier. Heat-load calculations are recommended before choosing any wine cellar cooling system.
What Is the Difference Between WhisperKOOL Extreme ti and tiR?
The WhisperKOOL Extreme ti and tiR models are both self-contained through-the-wall wine cellar cooling systems. The main difference is controller placement.
Model Type
Controller Location
Best For
Extreme ti
Front-facing control panel on the unit
Installations where cellar-side control access is acceptable
Extreme tiR
Remote KDT Plus controller
Installations where users want to monitor and adjust temperature outside the cellar
Technical Specifications
Model
Extreme 3500tiR
Cellar Size
Approx. 800 cu. ft. when fully insulated and sealed with a proper vapor barrier
BTU/h
2688 BTU/h at 85°F condenser air intake temperature
Dimensions
28" L x 14.25" W x 15.75" H
Refrigerant
R-134a
Weight
115 lbs
Horsepower
1/4 HP
Voltage Rating
115V; 20 amp dedicated circuit required
Running Amps
9 amps
Drain Line
1/2" ID clear plastic tubing required; not provided
Installation Distance
Can be installed up to 25 ducted feet away from the cellar with compatible ducting components
Thermostat
Advanced digital display with 50 ft. cable
Bottle Probe
Liquid-temperature-measuring bottle probe with 50 ft. cable
Temperature Differential
Can maintain 55°F cellar temperature with condenser air intake temperature up to 110°F
Ducting Options
Condensing side can be ducted; evaporator ducting options available with compatible accessories
Warranty
2-year limited parts and labor warranty; 5-year limited compressor warranty
BTU/h Sizing Note
The BTU/h value shown is an estimate and not a guarantee. Cellar construction variables such as glass, stone, concrete, direct sunlight, poor insulation, or missing vapor barrier protection can require a larger cooling unit.
Choosing an undersized unit may prevent the cellar from reaching the desired temperature and may contribute to premature system failure.
The optional 24V Thermostat Conversion Kit allows compatible WhisperKOOL systems to be used with select 24V thermostat setups.
Allows connection to compatible 24V thermostat technology.
Can support Wi-Fi thermostat control when paired with a compatible third-party thermostat.
May allow remote monitoring from a phone, tablet, or laptop depending on thermostat selection.
Can support alarm notifications and usage monitoring depending on thermostat features.
Important: WhisperKOOL does not provide smart thermostats. If you choose the 24V Thermostat Conversion Kit, the system will not be built with the standard WhisperKOOL control or liquid measuring bottle probe. You must purchase your own compatible 24V smart thermostat. WhisperKOOL support does not cover third-party thermostat issues.
Recommended Accessories
WhisperKOOL Extreme Exterior Grille
Required for exterior wall installations, the exterior grille helps protect the exhaust side of the cooling system from outdoor elements.
Wine Coolers Empire is a trusted source for residential wine cellar coolers, specialty wine cellar air conditioners, and commercial wine cellar refrigeration equipment. Our team helps customers compare cooling systems, review installation requirements, and choose appropriately sized equipment for their wine cellar projects.
Read customer feedback on our Customer Reviews page, or contact our team with questions before purchasing.
Wine Coolers Empire Expert Recommendation
We recommend the WhisperKOOL Extreme 3500tiR for homeowners and wine collectors building a dedicated wine cellar up to approximately 800 cubic feet who want a self-contained through-the-wall system with remote temperature control.
Before purchasing, confirm that the cellar is properly insulated, sealed, and protected with a vapor barrier. If your cellar includes glass walls, exterior walls, unusual building materials, or high ambient temperatures, we recommend requesting sizing support before selecting a unit.
Need Help Choosing the Right Wine Cellar Cooling System?
Our team can help review your cellar size, insulation, vapor barrier requirements, cooling capacity, rack layout, and product options before you buy.
