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By WhisperKOOL

WhisperKOOL Blow-Through 4000 – Ducted/Ductless Wine Cellar Cooling System

SKU: S-WKBT-4000-OMEGA-PD-2DP
Room Capacity:
1,000 cu. ft.
$7,685.00
$7,685.00
Condenser Type: 110V H.E. OMEGA
Airflow Configuration: Ducted Airflow Kit (2x Duct Plenum)

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Product Specs

Room Capacity*
1,000 cu. ft.
Width
15.5"
Height
15.5"
Depth
41.52"
BTU/h
3441 - 6087 (depending on fan speed)
Refrigerant
R-134a/R-513a
HP
0.6 HP
Spec Sheet
Spec Sheet
Installation Guide
Owner's Manual
Amps
3.1 (running amps)
Installation
Evaporator can be installed in cellars, soffits, attics, or adjacent mechanical spaces. Condensing unit can be installed up to 100 ft of line set from evaporator unit.
Thermostat
Advanced digital display (50ft cable), liquid-temperature measuring bottle probe (50ft cable).
Warranty
2-year limited warranty & up to an additional (1) year grace period for installation. (parts and labor)

*Suggested cubic footage assumes a sealed, insulated cellar (min. R19). Materials like glass, stone, or concrete reduce insulation effectiveness. Always perform heat load calculations before selecting a cooling unit. WhisperKOOL may update this document without notice.

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Blow Through Systems

The WhisperKOOL Blow-Through Series is a compact split-system cooling solution designed for discreet wine cellar applications where traditional systems may not fit. Ideal for wine walls, cabinetry, soffits, and custom cellars, it supports ducted, ductless, and hybrid airflow configurations while keeping the cooling equipment hidden from view.

Questions about cooling?
Call our friendly support team at 800-659-9463

With configurable airflow, a built-in condensate pump, dual-side service access, liquid-temperature bottle probe technology, and quiet centrifugal blowers, the Blow-Through system provides reliable climate control with exceptional installation flexibility.

Compatible with WhisperKOOL ΩMEGA 110V H.E. and 220V Advanced H.E. Condensing Units, the Blow-Through series is an ideal choice for residential and commercial wine cellars where performance, aesthetics, and discreet integration are essential.

Note: Installation by a qualified HVAC-R technician is required to maintain warranty coverage.

Important: WhisperKOOL does not supply a smart thermostat. Choosing the 24V Thermostat Conversion Kit removes the standard controls, requiring you to purchase your own 24V thermostat. Technical support for third-party thermostats is not provided.

*Please note that this feature will need an additional 4 inches of clearance on the side of the unit. See the owner manual for more information.

This BTU/h range is an estimate and may not account for all real-world conditions. Certain cellar designs may require a higher-capacity unit, especially when materials like glass, stone, or concrete reduce insulation efficiency. To ensure reliable performance and proper temperature control, we recommend selecting a unit with additional capacity. An undersized system can shorten equipment lifespan and may not achieve the desired temperature.

Product Warranty for Split System Units

A limited 2-year product warranty with up to an additional (1) year grace period for installation is offered with all split systems. While the warranty starts at the date of purchase, this warranty is not activated until a Product Warranty Checklist has been submitted and approved by WhisperKOOL.

View Full Warranty (pdf)
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