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WhisperKOOL Blow-Through 4000 Concealed Wine Cellar Cooling System
WhisperKOOL Blow-Through 4000 Concealed Wine Cellar Cooling System - 110V H.E. OMEGA / Ducted Airflow Kit (2 x Duct Plenum) is backordered and will ship as soon as it is back in stock.
WhisperKOOL Blow-Through 4000 Concealed Wine Cellar Cooling System
WhisperKOOL Blow-Through 4000 Concealed Wine Cellar Cooling System - 110V H.E. OMEGA / Ducted Airflow Kit (2 x Duct Plenum) is backordered and will ship as soon as it is back in stock.
WhisperKOOL Blow-Through 4000: Concealed Split Wine Cellar Cooling System
A split-system evaporator built for stealth cooling applications where traditional systems don't fit cleanly. Ideal for wine walls, built-in cabinetry, soffits, and custom wine cellars, the Blow-Through 4000 supports ducted, ductless, and hybrid airflow — keeping the cooling system out of view while your cellar stays exactly where you want it.
The Blow-Through Series is designed to support a wide range of cellar layouts through configurable airflow and precision fan control. Integrated airflow technologies help optimize circulation, reduce operational noise, and improve installation flexibility.
Every wine cellar installation presents unique airflow challenges. Flexible airflow management supports stable cellar temperatures while integrating more naturally into custom residential applications.
Rotatable Air Deflector
Supports left, right, and downward airflow configurations, letting the system adapt to soffits, built-in cabinetry, and in-cellar applications.
Variable Speed Fan Switch
Lets installers balance airflow performance, sound levels, and overall system efficiency based on installation requirements.
Centrifugal Blower
A high-performance centrifugal blower delivers strong, consistent airflow while maintaining quieter operation.
The Blow-Through Series incorporates monitoring and control technologies that help maintain precise cellar conditions while providing intuitive system management and operational protection.
Consistent temperature management is critical for long-term wine preservation. Integrated monitoring helps maintain stable storage conditions while improving system visibility and control for homeowners and installers.
KDT Digital Touch Display
Provides intuitive system control, monitoring, and parameter protection alerts. The display can be installed up to 50 ft. away for flexible placement.
Bottle Probe Technology
Measures liquid temperature directly for a more accurate representation of actual wine storage conditions compared to ambient air sensing alone.
The Blow-Through Series accommodates a broad range of installation environments — soffits, closets, built-in cabinetry, and in-cellar applications. Flexible ducting and service-access options simplify integration into custom residential projects.
Custom wine cellar projects often require adaptable installation solutions. The system is engineered to simplify integration into residential environments while supporting flexible airflow and service accessibility.
Ductless, Ducted, or Hybrid Operation
Runs ductless for direct airflow, or fully ducted for runs up to 25 ft., giving greater installation flexibility.
Multi-Application Design
Engineered to support soffits, closets, and built-in cabinetry across a variety of cellar layouts.
Dual-Side Service Access
The removable coil design allows service access from either the left or right side, improving installation flexibility and maintenance accessibility.
Upward-Facing Flare Fittings
Integrated upward-facing flare fittings with built-in knockouts support cleaner line-set routing and simplified installation.
The Blow-Through Series incorporates service-focused design features that help reduce installation complexity, improve maintenance accessibility, and streamline long-term servicing.
Simplified service access can help reduce installation labor, improve technician efficiency, and support an easier long-term ownership experience.
User-Friendly Flare Fittings
Help eliminate the need for brazing, reducing installation time and simplifying servicing procedures.
Removable Coil Design
Provides easier internal access during maintenance and servicing.
Modular Construction
Supports more efficient assembly, servicing, and long-term maintenance accessibility.
The Blow-Through Series incorporates drainage protection, durable construction materials, and configurable condensate management designed to support reliable operation across varying installation environments.
Reliable moisture management and durable construction are essential for long-term cooling system performance, helping protect internal components while supporting stable cellar operation.
Integrated Condensate Management
Includes a float switch and anti-microbial condensate strip to help prevent overflow and support reliable operation.
Stainless Steel Drip Tray
A corrosion-resistant stainless steel drip tray helps improve long-term durability and moisture protection.
Configurable Drainage Options
Supports either condensate pump or gravity drain configurations, with selectable left or right drain port placement.
One System. Any Installation.
Fully ducted, hybrid, or ductless — the Blow-Through 4000 fits soffits, closets, and built-in cabinetry without compromise. Duct runs up to 25 ft. Service from either side.
Ducted Airflow
- Ideal for soffits, wine walls, and cabinetry
- Concealed supply and return ducting
- Coil removal from left or right side
Ductless Airflow
- Open cellar applications
- Left, right, or downward airflow
- No ductwork required
Hybrid Airflow
- Duct runs up to 25 ft.
- Balances airflow control with simplified routing
- Ideal for compact mechanical spaces
Condenser Options: OMEGA 110V H.E. vs. 220V H.E.
A note on the 24V Thermostat Conversion Kit: if selected, the system will not be built with the standard WhisperKOOL control or liquid-temperature bottle probe — you'll need to source your own compatible 24V thermostat. Our support team does not provide technical support for third-party smart thermostats.
Full technical specifications — dimensions, weight, electrical requirements, and complete BTU ratings by fan speed and configuration — are available in the official WhisperKOOL Product Specification Sheet.
View Spec SheetCellar capacity depends on your chosen airflow configuration (ducted, ductless, or hybrid) and condenser selection. Refer to the Configuration Sheet and Product Specification Sheet below for capacity by configuration, and we recommend a professional heat-load calculation before finalizing your system.
A limited 2-year product warranty with up to an additional 1-year grace period for installation is offered with all split systems. This warranty is not activated until a Product Warranty Checklist has been submitted and approved by WhisperKOOL.
Product Documentation & Resources
Frequently Asked Questions
Can this cooling system be hidden in a soffit?
Yes — soffit installation is one of the Blow-Through 4000's intended applications. It can be positioned in a soffit, ceiling cavity, custom cabinet, attic, or adjacent mechanical space, with airflow directed into the cellar through your chosen ducted, ductless, or hybrid configuration.
What's the difference between the ducted, ductless, and hybrid airflow kits?
The ducted kit connects both supply and return air to insulated ductwork, giving the most flexibility in equipment placement. The ductless kit uses directional deflectors for both airflow paths — well suited to soffits and cabinetry with short, direct airflow. The hybrid kit ducts one side while using a deflector on the other, useful when only one airflow path needs to reach a remote register.
Do I need a professional to install this system?
Yes. This is a split refrigeration system that must be installed, commissioned, and charged by a qualified, licensed HVAC/R technician. Installation by an unqualified party will void the warranty, and the split-system warranty checklist must be completed by the installing technician before coverage is activated.
Is this a good fit for a glass wine cellar?
Glass wine cellars are listed among the Blow-Through 4000's ideal applications by WhisperKOOL, alongside residential wine rooms, commercial wine displays, and custom millwork. As with any cellar type, we recommend a professional heat-load calculation to confirm the right configuration for your specific space before ordering.
How large of a wine cellar can the Blow-Through 4000 cool?
Cellar capacity depends on your chosen airflow configuration and condenser selection — ducted, ductless, and hybrid setups each have different effective capacities, since ductwork affects airflow delivery. Check the Product Specification Sheet for exact capacity by configuration, and we recommend a professional heat-load calculation to confirm the right setup for your space.
California Residents: This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit P65Warnings.ca.gov.
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