Written by Jim Hopper, Wine Cooling Expert · Updated September 2026
Which Breezaire Series Do You Need?
Breezaire makes three families of wine cooling units. The WKL is a through-the-wall unit for walk-in cellars, the WKCE is built for wine cabinets and credenzas, and the WKSL is a split system with a separate condensing unit. Pick the series by where the unit goes, then pick the model by your cellar's cooling load.
This guide compares the three series using Breezaire's own installation instructions and warranty documents, so every size and rule below comes from the manufacturer.
In short: choose a WKL (six models, sized from about 140 to 2,000 cubic feet in Breezaire's table) for a standard walk-in cellar with a ventilated room to exhaust into. Choose a WKCE for a cabinet or credenza. Choose a WKSL (two models) when you want the condensing unit outside the cellar and have a licensed refrigeration installer. The WKL 6000 is the model Breezaire sizes for about 1,500 cubic feet.
Breezaire WKL vs WKCE vs WKSL at a Glance
The three series share the Breezaire Sentry III controller but differ in where they are installed and how they reject heat. The table sums up what Breezaire's installation instructions and warranty documents say about each one.
Breezaire series compared from manufacturer documentation
| Attribute | WKL | WKCE | WKSL |
|---|---|---|---|
| What it is | Self-contained unit installed through a wall, upright | Self-contained unit with the cold air discharge on the bottom | Split system: a condensing unit plus a fan/coil unit |
| Designed for | Walk-in wine cellars (not service cabinets) | Wine cabinets and credenzas | Cellars where the condensing unit should sit outside the room |
| Models | WKL 1060, 2200, 3000, 4000, 6000, 8000 | WKCE 1060, WKCE 2200 | WKSL 2200, WKSL 4000 |
| Sizing in Breezaire's table | About 140 to 2,000 cubic feet | Cabinet and credenza use (no cellar volume listed) | About 265 and 1,000 cubic feet |
| Ductwork | Not designed for ductwork on either side | Not a ducted unit | Refrigerant line set of up to 50 calculated feet |
| Installation | Through the wall, exhaust unobstructed for 3 feet | On a shelf near the ceiling, exhaust unobstructed for 3 feet | A licensed refrigeration technician connects and charges it |
| Warranty | 5 years parts, 1 year factory labor | 5 years parts, 1 year factory labor | 1 year on components |
WKL Series: Through-the-Wall Units for Walk-In Cellars
The WKL is the Breezaire most people mean when they search for a Breezaire wine cellar unit. It mounts through a wall, cools the cellar side and rejects warm air into the room behind it. Breezaire states that the unit must be installed upright and is not designed to have ductwork on either the warm or the cold side.
The warm exhaust needs at least 3 feet of unobstructed airflow into a well-ventilated space. Breezaire lists unventilated laundry rooms, closets, bathrooms, garages, crawl spaces, attics and humid basements as poor exhaust locations.
WKL models and the cellar size Breezaire lists for each
| Model | Cellar size in Breezaire's table | Typical fit |
|---|---|---|
| WKL 1060 | About 140 cubic feet | Closet or very small cellar |
| WKL 2200 | About 265 cubic feet | Small walk-in cellar |
| WKL 3000 | About 650 cubic feet | Small to mid-size cellar |
| WKL 4000 | About 1,000 cubic feet | Mid-size cellar |
| WKL 6000 | About 1,500 cubic feet | Larger cellar |
| WKL 8000 | About 2,000 cubic feet | Largest WKL application |
All WKL units are 115 volt, 60 Hz. If you searched for a "WKL 1500", note that no model carries that number: the model rated for about 1,500 cubic feet is the WKL 6000. Browse the Breezaire WKL units to compare the models we carry, and see our Breezaire WKL 2200 vs WhisperKOOL SC PRO 2000 comparison if you are weighing the 2200 against a rival.
WKCE Series: Cooling for Wine Cabinets and Credenzas
Breezaire designed the WKCE series, with its cold air discharge on the bottom, for cabinets and credenzas. There are two models, the WKCE 1060 and the WKCE 2200.
The instructions call for mounting the unit on a shelf about six inches from the ceiling of the enclosure, with at least 12 inches of clear space in front of the cold air outlet and 3 feet for the warm air leaving the exterior grille. Like the WKL, it is not meant to heat or humidify the space.
If you are cooling furniture rather than a room, start with the Breezaire WKCE cabinet units or compare other wine cabinet cooling units.
WKSL Series: Breezaire's Split System
The WKSL is Breezaire's answer to the search for Breezaire split systems. It ships as two components, a condensing unit and a fan/coil unit, and Breezaire states that it is not a working cooling system until a qualified refrigeration installer has connected the components, pressure tested, evacuated, charged and tested them. Breezaire recommends a licensed refrigeration technician for every WKSL install.
- Models: WKSL 2200 (about 265 cubic feet) and WKSL 4000 (about 1,000 cubic feet).
- Fan/coil unit: mounted within six inches of the ceiling, with 3 feet of unobstructed airflow.
- Condensing unit: on a solid base with at least 1 foot of clearance on all sides and 3 feet for the warm exhaust.
- Line set: no longer than 50 calculated feet per line, reduced by 10 feet for every hard 90 degree bend.
- Condenser temperature: rated capacity drops if the condenser inlet air exceeds 85°F, and below 20°F a crankcase heater or fan speed control should be added.
How to Choose Between the Three Series
- Cabinet or room? A cabinet or credenza points to the WKCE. A walk-in cellar points to the WKL or WKSL.
- Where can the heat go? A WKL needs a well-ventilated room behind the wall with 3 feet of clear exhaust space. If there is no suitable room, a WKSL moves the condensing unit elsewhere.
- How warm is it around the cellar? Breezaire notes that a WKL produces less than its stated capacity when the surrounding ambient temperature is more than 25°F above the cellar temperature.
- What load does the cellar have? Estimate volume, insulation and glass, then match the model. Our guide on how to size a wine cellar cooling unit walks through it.
- Who installs it? A WKL is designed for a through-the-wall install; a WKSL needs a licensed refrigeration technician.
Once you know the series, our guide to which Breezaire to buy for your cellar size narrows it down to a single model. To see how Breezaire compares with another brand, read the Breezaire vs WhisperKOOL brand comparison or the wider roundup of the best wine cooling brands compared.
Sentry III Controls, Care and Humidity
All three series use the Sentry III controller, which includes blocked airflow protection that shuts the unit down if a condenser blockage drives temperatures up. The same rule applies across the range: Breezaire calls for inspecting and cleaning the condenser coil every three months, and a blocked coil failure is not covered by the warranty.
Breezaire units reduce excess humidity but do not add moisture. For dry cellars, Breezaire recommends slow, natural evaporation from a small porous water container and says not to use a humidifier. Our Breezaire maintenance guide covers the routine, and genuine Breezaire parts are listed separately.
Setting up a Breezaire unit
A walkthrough of the Breezaire controller settings, useful for any WKL, WKCE or WKSL owner.
- Temperature setting on the Sentry III
- Where each setting lives on the controller
- What to check after installation
Breezaire Models to Compare
These are popular starting points in each size class. Breezaire units ship free within the contiguous United States. See every Breezaire cooling unit we carry for the full range.
Wine Cooling Expert, Wine Cellar Authority
The series question answers itself once you know where the heat is going. If there is a well-ventilated room behind the cellar wall, a WKL is the simple choice. If there is not, do not force it: a WKSL with a proper refrigeration install will serve you far better than a WKL exhausting into a closet.
Common questions about choosing between the Breezaire WKL, WKCE and WKSL series. Tap any question to expand the answer.
What is the difference between Breezaire WKL, WKCE and WKSL?
The WKL is a self-contained through-the-wall unit for walk-in cellars, the WKCE is a self-contained unit with a bottom cold air discharge designed for wine cabinets and credenzas, and the WKSL is a split system with a separate condensing unit that a licensed refrigeration technician installs.
Which Breezaire WKL model is rated for 1500 cubic feet?
The WKL 6000 is the model Breezaire's WKL sizing table lists for about 1,500 cubic feet. There is no model numbered 1500. Confirm the size with a heat load calculation, a licensed HVAC professional and the manufacturer documentation.
Does Breezaire make a split system?
Yes. The WKSL series is Breezaire's split system, in two models: the WKSL 2200 for about 265 cubic feet and the WKSL 4000 for about 1,000 cubic feet. It ships as components and must be connected and charged by a qualified refrigeration installer.
Can a Breezaire WKL unit be ducted?
No. Breezaire states that the WKL must be installed in the upright position and is not designed to have ductwork on either the warm air or the cold air side. If you need the heat moved elsewhere, look at the WKSL split system.
What is the Breezaire WKCE 2200 used for?
The WKCE 2200 is one of two WKCE models designed for wine cabinets and credenzas. Its cold air discharges from the bottom, and Breezaire recommends mounting it on a shelf about six inches from the ceiling of the enclosure.
What warranty comes with a Breezaire wine cooling unit?
WKL and WKCE units carry five years on parts and one year of factory labor from the original retail purchase, and the warranty is not transferable. WKSL split systems carry one year on components.
Where should a Breezaire WKL exhaust its warm air?
Into a well-ventilated room with at least 3 feet of unobstructed airflow. Breezaire lists unventilated laundry rooms, closets, bathrooms, garages, crawl spaces, attics and humid basements as inappropriate exhaust locations.
Does a Breezaire unit add humidity to a wine cellar?
No. Breezaire units reduce excess humidity but do not add moisture. Breezaire recommends slow, natural evaporation from a small porous water container for dry cellars and says not to use a humidifier.
Not Sure Which Breezaire Fits?
As an authorized Breezaire dealer, we can help you match the series and model to your cellar. Send us your room details for a quote.
This comparison is general guidance based on Breezaire's installation instructions and warranty documents. Final sizing, installation design and electrical requirements should be confirmed with a licensed HVAC professional and the manufacturer documentation for your model.
