Wine Guardian Defender WGTTW02B Through-the-Wall Wine Cellar Cooling Unit

The Wine Guardian Defender WGTTW02B is a compact through-the-wall wine cellar cooling system designed for small wine cellars, wine closets, and compact wine storage rooms where ducted or split systems are unnecessary or impractical.

This self-contained cooling unit installs directly through the wall between the wine cellar and an adjacent interior space, providing reliable temperature stability, humidity monitoring, and quiet operation without requiring HVAC installation.

With approximately 2,650 BTU/h cooling capacity, the WGTTW02B is suitable for small residential wine rooms and wine closets, depending on insulation quality, vapor barrier installation, and total heat load.

The Defender series includes smart control options, humidity monitoring, and energy-efficient refrigeration technology to maintain consistent storage conditions that protect wine from temperature fluctuations, excessive humidity, and vibration.

Important:
This unit is designed for interior through-the-wall installation only. The condenser side must vent into a temperature-controlled interior space.

What This Cooling Unit Is Designed For

The Wine Guardian WGTTW02B Defender works best in small wine storage environments where a simple and reliable cooling solution is needed.

Typical applications include:

• Small residential wine cellars
• Wine closets and wine cabinets
• Under-stair wine storage rooms
• Small restaurant wine storage rooms
• Compact wine display installations

Because every wine cellar has different heat loads, a heat load calculation is recommended before selecting any cooling system.

Key Advantages of the WGTTW02B Defender

Stable Temperature Control for Wine Storage

Wine ages best in a stable environment. The Defender system maintains consistent cellar temperatures typically between 55°F and 58°F, the ideal range for long-term wine storage.

Energy-Efficient Cooling

The unit is engineered to meet U.S. Department of Energy efficiency standards, helping reduce power consumption while maintaining stable cellar conditions.

Quiet Operation

Through-the-wall systems often operate near living spaces. The Defender includes vibration-reducing components and sound-dampening materials to minimize operational noise.

Smart Device Connectivity

The system supports Bluetooth and NFC control, with optional Wi-Fi connectivity that allows monitoring and adjustment of cellar conditions from compatible smart devices.

Integrated Humidity Monitoring

A built-in thermostat and humidistat help maintain proper humidity levels for wine storage. If necessary, the system can connect to a humidifier for additional humidity control.

Condensate Evaporation System

The Defender includes a condensate evaporator that re-evaporates collected moisture, eliminating the need for a drain line in most installations.

Key Features

Energy-Efficient Refrigeration System

Optimized for efficient cooling performance while reducing energy usage.

Wide Temperature Control Range

Capable of maintaining cellar temperatures from 42°F to 75°F, though wine storage is typically maintained near 55°F.

Humidity Monitoring Integration

Allows connection to an optional humidifier for additional humidity control.

Quiet Cooling Operation

Approximate sound level of 54 dBA, suitable for residential installations.

DIY-Friendly Installation

Installs directly through the wall using mounting brackets or a wall sleeve.

Environmentally Responsible Refrigerant

Uses refrigerant with low global warming potential to comply with U.S. environmental regulations.

Optional Ultra-Quiet Package

Additional acoustic insulation further reduces operational noise.

Electric Heater Option

A built-in heating coil can warm cellar air when temperatures drop below the set point.

What’s Included With the Unit

The Wine Guardian Defender WGTTW02B package includes:

• Through-the-wall cooling unit
  
• Integrated humidity sensor
  
• Condensate evaporator system
  
• Exterior wall package components
  
• Mounting hardware
  
• Installation documentation

Specifications

General Specifications

Dimensions

Airflow Performance

Cooling Capacity by Condenser Temperature

Cooling performance decreases as condenser air temperature increases.

Manuals and Documentation

• Product Brochure
• Specifications Sheet for TTW Series
• Quick Start Guide

Installation Requirements

Before installing a through-the-wall wine cellar cooling unit, ensure the following conditions are met:

• The wine cellar must be fully insulated.
• A vapor barrier must be installed on the warm side of the wall.
• The condenser side must vent into a temperature-controlled interior room.
• The unit requires a dedicated 120V electrical circuit.

Improper insulation or missing vapor barriers can cause condensation and reduce cooling performance.

Manuals and Documentation

Available documentation includes:

• Wine Guardian TTW Series Product Brochure
• TTW Series Specification Sheet
• Quick Start Installation Guide

Product Videos

How to Install a Wine Guardian Through-the-Wall Cooling Unit

A step-by-step overview of installing a Wine Guardian TTW cooling system.

Through-the-Wall Cooling System Overview

Learn how through-the-wall wine cooling systems work and when they are appropriate.

Wine Guardian Cooling Systems in Operation

See how Wine Guardian systems maintain stable wine storage conditions.