Venting a WhisperKOOL XLT

The WhisperKOOL XLT Series consists of 5 well built and highly reliable wine cellar coolers that mount through-the-wall, blowing cold air into your wine cellar and hot exhaust air into the adjacent room.  To ensure that your WhisperKOOL XLT will operate correctly and for many years, there are a few things you must consider regarding venting the unit that will be detailed below, but first we’ll briefly recap things to be aware of when selecting a WhisperKOOL.

The wine refrigeration units in the XLT Series that I am referring to are:

  • WhisperKOOL XLT 1600
  • WhisperKOOL XLT 3000
  • WhisperKOOL XLT 4200
  • WhisperKOOL XLT 6000
  • WhisperKOOL XLT 8000

They range from 1600 BTUs to 8000 BTUs.  The maximum size of a wine cellar the WhisperKOOL XLT 1600 can cool to 55°F is 300 cubic feet and the WhisperKOOL XLT 8000 model can cool up to 2000 cubic feet.  However, you cannot simply invest in a wine cooling unit based on cubic footage alone….The best WhisperKOOL XLT cooler for you room is also dependent on a few other things, including:

  • temperature of the intake air in the “venting room” or outside (if you are venting to the outdoors)
  • proper insulation (walls, ceiling and maybe floor depending on where it is located geographically and in the building)
  • amount of glass in doors or windows
  • type of glass (single, double or triple pane)
  • heat gain from lights or how often the door is opened and closed
  • how well the door and room are sealed with a door sweep and weather striping and vapor barrier

Give a ring or email or post on the blog if you would like advice on deciding what XLT model is the most appropriate one for you, taking into consideration all the factors when building a wine room…

Also, use our BTU calculator!

WhisperKOOL XLT exhaust is about 90°F.  That’s HOT.  So, we have to make sure that this hot air is not going to be detrimental to other parts of your home, restaurant or wine shop, or be sucked back into the cooler through the intake fans located just below the exhaust fans.  These cooling systems only have a 30°F differential/delta between the intake air and the temperature it can achieve in the wine room.   If the thermostat is set for 55°F, then the maximum temperature of intake air can be 85°F.  From our years of experience thought, it is probably better to be within 25°F.

Rear of WhisperKOOL XLT

Adjacent room should be 2 times larger than the wine cellar if you are not planning on removing the hot exhausting the hot air from the cooler out of the room.

If the adjacent room is smaller than 2 times the size of the wine cellar, it’s a good idea to have a fresh air vent to the room and/or an exhaust vent.

WhisperKOOL offers an Exhaust Ducting Kit.  This is good for when the temp of

Intake fans are not strong enough to hook up ducts to in order to pull fresh air to the unit.

Outside…not good idea.  too cold and too hot sometimes.  If you do, must use the WhisperKOOL XLT Exterior Grille.

In the picture above, you may have noticed the drain line fitting on the bottom right of the cooler and the re .  Click on these links if you need more information about either.

Keep in mind that the entire point of getting a cooler is to protect your wine.  The WhisperKOOL XLT is a fantastic through-wall unit, that is economical, but built much better than most other coolers in its class.  However, if you simply cannot vent it properly and the install is not ideal for it to work effectively and efficiently, please do yourself a favor and consider a Split System or WhisperKOOL Extreme.  One time we had a Split System in a client’s garage, ready to install in a day or so, but he decided to save money and had us put in WhisperKOOL XLT instead.  The wine cellar was in a finished basement in about  an 8000 sq. ft. luxury home in New England.  He is a wealthy man so not having money was not the problem, but for some reason he just wanted to save money against our recommendations to use a split system.  Sure enough, a few months later, he told me that the heat blowing into the extra bedroom was way too hot and he is not pleased with the noise.

WhisperKOOL XLT Exhaust Duct Kit – Large

Large XLT Exhaust Duct Kit for WK 6000 & WK 8000

This kit is used for venting the hot exhaust air away from the back of the WhisperKOOL XLT cooler unit.   There is a specific Small Kit for the WK 1600, WK 3000 and WK 4200 that will not fit on the bigger sized WK 6000 and WK 8000 units, so if your wine cellar cooler requires an exhaust kit, make sure to tell your WhisperKOOL dealer to send you the right size.

Most  common situation:  A small “venting” room that will heat up over 85°F which will not let the WhiskerKOOL XLT work properly and allow you to reach 55°F in the wine cellar, a perfect temperature to age wine.  If a WhisperKOOL owners’ “venting” room is not small, but is already warm, like a garage or a mechanical room, the exhaust duct kit helps to not heat up the room any further.

Keep in mind that this kit will not adjust the “intake” air for the cooler.  If that is

Sometimes a garage or a mechanical “venting” room will be over 85°F to begin with.  An exhaust fan kit will move the hot air away as to not add to the already warm room, but the WhisperKOOL XLT probably is not the right cooler for you situation.

The WhisperKOOL Exhaust Duct Kit includes a duct collars and an inline fan, however you must source the 8″ round flex ductwork locally.

  • Flange that mounts on the back of the cooler
  • Boot-Unit Adapter that connects to the flange and has the temperature control
  • Duct Fan from Wells Technology – Model DF-10C
  • 90° Boot (collar)

WhisperKOOL XLT - Large Exhaust Fan Ductin Kit

The WhisperKOOL Exhaust Duct Kit is ideal if you are venting the cooler to a small room that will heat up over 85°F if you simply let the hot exhaust air blow into the room.  We recommend that the “exhausting” room should be 2 times larger than the wine cellar if you don’t plan on using the ducting kit.  That is big enough to

If you your “venting” room is only about the same size of the wine cellar and cool, and you don’t think it will heat up over 85°F, then try using the cooler without a duct kit; you might get lucky.  However, while planning or building your wine cellar keep in mind that you may need to install the kit at a later time.

so the room will heat up over 85°F which will cause the cooler to not work properly.

Are you a WhisperKOOL owner?  Do you use an Exhaust Kit?  Please share your experiences.  I am sure that potential WhisperKOOL owners will like to know your thoughts on this wine cellar cooling topic.

WhisperKOOL XLT PDT Thermostat – Upgrade

WhisperKOOL XLT PDT (Precision Digital Technology) Thermostat

PDT Upgrade with a new WhisperKOOL XLT

WhisperKOOL XLT units come standard with a PDT Jr.  It’s an accurate thermostat and obviously does the job of regulating the liquid temperature of the water with the bottle probe sensor and controls, but the PDT Upgrade shown here is a little more precise and has a digital display.  It is not necessary to get a PDT Upgrade when you buy a new WhisperKOOL XLT, but for just over $100 more, it’s probably worth it, even if you have another thermometer in the room.  We think it’s a good idea to be able to see on the thermostat display what the bottle probe is sensing.

PDT as a replacement thermostat for a WhisperKOOL XLT

The same WhisperKOOL XLT PDT listed above that is available as an upgrade when purchasing a new WhisperKOOL XLT, is also offered as a replacement of a PDT Jr. on an existing cooler unit.  Likewise, if you have a PDT already and years later when it is out of the warranty period and you need to replace it, it’s good to know that these are available separately.

Warranty Information

A limited 2-year parts and labor / 5-year compressor warranty Full Warranty Info

WhisperKOOL XLT 3000

WhisperKOOL XLT 3000 with PDT Jr.

Best prices on WhisperKOOL XLT 3000

$1549.00   Delivered anywhere in the Continental USA.  FREE SHIPPING.  PDT Jr.

Order now.

Rear of WhisperKOOL XLT

Key Features (learn more):

  • Economical wine cooling solution
  • Simple installation – between wall studs
  • Condensate evaporator
  • Liquid measuring thermostat – PDT Jr.
  • Exhaust side ductable
  • Two year parts and labor warranty

Optional Accessories

  • PDT Digital Display
    This upgrade from the PDT Jr. is equipped with a digital readout that shows the actual temperature reading from the bottle probe.
  • Small Exterior Grille
    The Grille protects the XLT systems from the weather elements when placed on the exhaust side.
  • Small Exhaust Duct Kit (1600, 3000, 4200)
    This kit 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.
    Ducting Kit Installation Guide

WhisperKOOL XLT 3000 Details

  • Cellar Size: 300 cu. ft.
  • dBA: 63 Decibels
  • Dimensions: 14.25″w x 15.75″h x 17″d
  • Weight: 65lbs
  • AMPS (starting/running): 28/4.5
  • Installation: Through-the-Wall
  • Temp. Delta: 30°F temperature differential
  • Thermostat: PDT Jr. standard, optional PDT with LED display
  • Outside Venting: Not recommended unless exhaust environment will not exceed 85°F and using a grille
  • Ducting Options: Only the exhaust side can be ducted using the optional ducting kit

WhisperKOOL XLT Series

SAVE TIME & MONEY with the WhisperKOOL XLT Series!

Simple install through-the-wall and no extra cost of a licensed technician…

This cooler system is an economical wine cellar cooling solution, designed for wine collectors who want to only trust their wine to be refrigerated by one of the most prestigious brands in the industry.   These enthusiasts do not want to compromise the integrity of their wine room conditions by using an inferior and less reliable cooler.

WhisperKOOL XLT coolers are 14.25″ wide, so if your walls are constructed according to normal standards, their center-line should be 16″ apart, leaving a width perfect to slide an XLT between.  A header and a footer is also required in the framing and are simple for a carpenter to put in.  The WhisperKOOL XLT 1600, 3000 and 4200 are all 15.75″ (h) so the framed opening will be the same, but the WhisperKOOL XLT 6000 and 8000 are 22.75″ (h), so make sure you plan this when building the wine cellar wall.

These wine cooling units are designed with a rear flange with pre-drilled holes and a bag of screws is also provided.  Your WhisperKOOL XLT can be lagged into the studs, header and footer and will mount tightly to the wall.  One of the biggest advantages of using this cooler compared to others on the market is that this flange eliminates the need for an unsightly support shelf that will also cost you more money to build.

Rear of WhisperKOOL XLT

Another helpful and standard component on all XLT models is the condensate evaporator which dissipates excess moisture that collects during normal operation; basically it uses this condensation to help keep the wine cellar humidified by blowing it back into the room.

The PDT Jr., a liquid measuring thermostat, is equipped on all WhipserKOOL XLT wine room air conditioning systems to accurately maintain wine temperature.  It’s really a very neat idea; instead of measuring the air temperature of a wine cellar, WhisperKOOL coolers use a  probe about 7″ long that has liquid temperature sensors in it.  This probe is outfitted on one end with a rubber stopper about the size of a wine bottle cork so it snugly fits into a wine bottle filled with water.  It is attached to the thermostat by an electrical cord through which it is continuously sending liquid temperature readings back to the controller.

The XLT has a 30°F temperature differential or delta between the “intake” air on the back side of the cooler and cooled liquid temperature (from the probe) in the wine cellar.   What this means is that if you want to keep your wine stored at  55°F, an optimal temperature for aging wine, the area the unit is exhausting into and taking in air from should not exceed 85°F.   Venting the cooler to the outside is not recommended for most climates, as temperatures can go over 85°F and the cooler can’t work properly in freezing temperatures.  This makes interior installation ideal for WhisperKOOL XLT units.  However, the adjacent room should be about 2x larger than the wine cellar to let the hot air dissipate and not heat the room to over 85°F.  If the room is normally under 85°F, but will be over 85°F only because of the exhaust heat off the compressor fans, then an XLT Ducting Kit can be used to get rid of the hot air exhaust, allowing the intake to simply use the existing air which will let the cooler work effectively and efficiently.

We understand that if you are just building your first wine cellar or are not familiar with wine refrigeration, this can seem overwhelming so we encourage you to contact us by email or call us at 866-367-2883, but also don’t forget to look at the WhisperKOOL XLT manual for more details.  It would be nice to hear if this introduction to the XLT Series was helpful or if you have any questions or other comments, please post below.

Each WhisperKOOL XLT has a certain amount of BTU Capacity.  The smaller the BTUs, the smaller the wine room that unit can effectively cool a wine room to 55°F.  For example, a WK XLT 1600 has 1600 BTUs and can be used in perfectly built wine room (meaning adequate insulation and no glass) that is under 300 cubic feet.  At the same time, a WK XLT 8000 can be used in wine cellars up to 2000 cubic feet.  Keep in mind that this maximum wine room cubic footage is only a guide. If you room is not insulated well or has a glass door or window or is on a top floor of living space and not in a basement, then you might need a bigger cooling unit than you would think.  Give us a call; we are here to help you take the mystery out of choosing the most appropriately sized WhisperKOOL.

Use our BTU Calculator to find out how many BTUs you need to cool your wine room to 55°F

  • Drain Line – should use it, picture
  • Picture of bottle proble
  • PDT – as an option
  • Power Cord – can use an electrical outlet in the wine room or outside
  • Negative is the noise
  • Negative is the 30 F delta
  • Negative is have to buy a ducting kit that costs more for when the room is too hot from exhaust, so maybe buy an Extreme and remotely mount so no equipment in the room.  Or if the room is too hot to begin with, have to spend money cooling the room because no kit to bring fresh air to the unit…and if you spend the money to do that, should just buy an Extreme.

Blog posts as well.


WhisperKOOL XLT Series:  Benefits and Features

  • Easy installation
  • Licensed HVAC  or refrigeration technician is not needed because it is Pre-Charged
  • Condensate Evaporator collects and dissipates excessive moisture
  • Drain line may not be needed, but is a good idea to hook up
  • Fits between standard studs – 16″ on center
  • Support Shelf is not necessary (like other brands require) because of the rear flange
  • Vibration Free Operations

Installation Tips

  • The Maximum cubic feet the WhisperKOOL can handle is based on a perfectly built wine cellar with proper insulation in the ceiling, walls, floor (when necessary) and vapor barrier installed.
  • Simply install your new WhisperKOOL system by sliding it (from the outside) through the framed opening prepared in the wine cellar wall.
  • Screws are conveniently provided for you to mount your WhisperKOOL unit directly into the studs.
  • A 1/2″ condensate drain line is also supplied. If you do not use the drain line, please keep the attractive brass plug fitting installed to prevent leaking.
  • www.WhisperKoolHelp.com recommends using a surge protector plugged into a dedicated 110 volt electrical line for your WhisperKOOL XLT.
  • You can not properly size a WK system by the cubic feet alone. Cubic feet is only a guide. The BTUs needed to cool a wine room are based on insulation values, vapor barriers, below grade or on a slab, amount of door and window glass. For a professional heat gain calculation that will determine the best WhisperKOOL for your wine room, please contact us by phone or email.

VERY IMPORTANT:
Vent your WhisperKOOL system into an adjacent room at least 2 times the size of your wine cellar.

BTU Calculator – to find the best cooler for your specific wine cellar.

Contact our Technical Department if you have any questions:
tech@BayColonyWineCellars.com or 1(866)367-2883.

Please take a moment to share your thoughts on these coolers with our WhisperKOOL Community.  I am sure potential WhisperKOOL XLT owners would love to hear about others’ experiences with them.

WhisperKOOL XLT 8000

Key Features (learn more):

  • Economical wine cooling solution
  • Simple installation – between wall studs
  • Condensate evaporator
  • Liquid measuring thermostat
  • Exhaust side ductable
  • Two year parts and labor warranty

Optional Accessories

  • PDT Digital Display
    This upgrade from the PDT Jr. is equipped with a digital readout that shows the actual temperature reading from the bottle probe.
  • Large Exterior Grille (6000, 8000)
    The Grille protects the XLT systems from the weather elements when placed on the exhaust side.
  • Large Exhaust Duct Kit (6000, 8000)
    This kit 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.
    Ducting Kit Installation Guide

WhisperKOOL XLT 8000 Details

  • Cellar Size: 2000 cu. ft.
  • dBA: 68 Decibels
  • Dimensions: 14.25″w x 22.75″h x 21.5″d
  • Weight: 104lbs
  • AMPS (starting/running): 36/10
  • Installation: Through-the-Wall
  • Temp. Delta: 30°F temperature differential
  • Thermostat: PDT Jr. standard, optional PDT with LED display
  • Outside Venting: Not recommended unless exhaust environment will not exceed 85°F and using a grille
  • Ducting Options: Only the exhaust side can be ducted using the optional ducting kit

WhisperKOOL XLT 6000

Key Features (learn more):

  • Economical wine cooling solution
  • Simple installation – between wall studs
  • Condensate evaporator
  • Liquid measuring thermostat
  • Exhaust side ductable
  • Two year parts and labor warranty

Optional Accessories

  • PDT Digital Display
    This upgrade from the PDT Jr. is equipped with a digital readout that shows the actual temperature reading from the bottle probe.
  • Large Exterior Grille
    The Grille protects the XLT systems from the weather elements when placed on the exhaust side.
  • Large Exhaust Duct Kit (6000, 8000)
    This kit 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.
    Ducting Kit Installation Guide

WhisperKOOL XLT 6000 Details

  • Cellar Size: 1500 cu. ft.
  • dBA: 68 Decibels
  • Dimensions: 14.25″w x 22.75″h x 17″d
  • Weight: 100lbs
  • AMPS (starting/running): 36/9.5
  • Installation: Through-the-Wall
  • Temp. Delta: 30°F temperature differential
  • Thermostat: PDT Jr. standard, optional PDT with LED display
  • Outside Venting: Not recommended unless exhaust environment will not exceed 85°F and using a grille
  • Ducting Options: Only the exhaust side can be ducted using the optional ducting kit