🍷 Thinking About a Ductless Wine Cooling System?
By Jim Hopper, Wine Cooling Expert
Not every wine cellar is built the same—and neither are the cooling systems that support them. If you’re working with a space where through-the-wall units aren’t practical, or if you're looking for a quieter, more discreet setup, a ductless wine cooling system like Breezaire’s WKSL Series may be the perfect fit.
This guide explains:
- What a ductless cooling system is
- What’s included in a WKSL setup
- How to plan and install it step-by-step
- Whether it’s the right choice for your cellar
If you're just beginning your cellar design or need help planning insulation and airflow, start here:
👉 Wine Cellar Installation Guide: How to Design & Cool with Breezaire USA →
1. What Is a Ductless Wine Cooling System?
Ductless cooling systems are a type of split system, meaning the cooling components are divided into two parts:
- Evaporator Unit: Installed inside or near the wine cellar
- Condenser Unit: Installed in a separate space, often outside
Breezaire’s WKSL Series is a premium ductless system designed specifically for wine cellars. It connects the evaporator and condenser with a refrigerant line and flexible ducting, giving you more freedom in placement and aesthetics.
Unlike self-contained units (like the WKL), ductless systems don’t require wall venting into adjacent rooms.
2. Advantages of Going Ductless
Wondering if a WKSL system is right for you? Here are a few reasons why homeowners and cellar pros love ductless cooling:
- Whisper-Quiet Operation: The noisiest parts of the system stay far from the wine room.
- Sleek, Invisible Design: Since no unit is mounted in the cellar wall, your wine room stays clean and uncluttered.
- Ideal for Design-Focused Builds: Perfect for high-end, glass-front, or display cellars where looks matter.
- No Warm Exhaust in Your Home: Since the condenser vents outside, it won’t heat up an interior room.
3. Key Components of a WKSL System
Here’s what’s typically included in a Breezaire WKSL setup:
- Evaporator (Indoor Unit): Cools and circulates cellar air
- Condenser (Outdoor Unit): Releases heat outside
- Flexible Ductwork: Moves air between evaporator and cellar
- Drain Line: Removes condensation
- Thermostat Controller: Monitors and sets cellar temperature
- Refrigerant Line Set: Connects indoor and outdoor units (installed by a pro)
4. Planning the Install: Location, Ducts & Electrical
📍 Evaporator Location
Mount the indoor evaporator unit:
- Inside the cellar ceiling or above a nearby room
- Where ducting can reach without long, inefficient runs
- With access to a safe drain outlet
🌬️ Duct Routing
- Keep duct runs under 25 feet if possible
- Use insulated, rigid or flexible ductwork rated for HVAC
- Avoid sharp bends or loops
⚡ Electrical Requirements
- Units require dedicated 115V or 230V power, depending on model
- Always consult a licensed electrician for circuit planning
💧 Drainage & Line Set
- Use gravity or pump-assisted drain lines
- All refrigerant work must be performed by a licensed HVAC professional
5. Installation Overview: Step-by-Step
Here’s how a WKSL ductless install generally works (professional help required):
- Frame and prep the evaporator space (ceiling, wall, or remote room)
- Mount evaporator unit and connect condensate drain
- Install ductwork from evaporator to cellar supply/return vents
- Place condenser unit outdoors or in mechanical room
- Run refrigerant lines and power wiring between units
- Power on and test airflow, temperature, and refrigerant pressures
📄 Breezaire includes full installation specs in the WKSL manual. Always consult your installer before selecting locations.
📚 Installation Companion:
👉 WKSL Ductless Install PDF Manual →
6. WKSL vs WKL: Which One Should You Choose?
Not sure if you need ductless or self-contained? Here’s a quick comparison:
| Feature | Breezaire WKL (Through-Wall) | Breezaire WKSL (Ductless Split) |
|---|---|---|
| Installation Style | Mounted through cellar wall | Remotely ducted (no wall mount) |
| Noise Level | Moderate (inside wall) | Quiet (remote condenser) |
| Aesthetic Impact | Visible in cellar wall | Hidden from view |
| DIY Friendly? | Yes (basic tools) | No (requires HVAC pro) |
| Exhaust Location | Vents into home | Vents outdoors |
| Best For | Simple cellars, DIY setups | High-end, display cellars |
✅ Conclusion: Is WKSL Right for Your Wine Cellar?
If you’re building a wine cellar where noise reduction, discreet aesthetics, and premium control matter, the Breezaire WKSL Series offers an excellent solution. While it does require professional installation, the result is a quiet, elegant, and efficient cellar cooling experience.
📦 Ready to plan your ductless system?
📞 Call Us: 1 (800) 702-1381
📧 Email: support@breezaireusa.com
